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1
Xiang, Peng Wei, Rui Ping Zhang, Mei Niu, Xue Ping Guo, and Qi Rong Bai. "Research on the Rheological Properties of Polyphenylene Sulfide (PPS) Resin." Advanced Materials Research 332-334 (September 2011): 949–54. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.949.
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Using capillary rheometer to study PPS temperature, shear rate, activation energy of viscous flow. Experiments show that with the increase of shear rate, apparent viscosity decreased. As the apparent viscosity is affected by temperature, so when the temperature increased, the apparent viscosity also decreased. It also indicates that the higher the shear rate comes, the lower the impact of temperature on the apparent viscosity is. As the temperature increased, non-Newtonian index (n) increased and tended to 1, PPS melt is pseudoplastic fluid. The activation energy of viscous flow of PPS decreased with the increasing of the shear rate. In addition, with the increasing of temperature, structural viscosity index felt regularly.
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Begum, K., and M. A. Islam. "Treatment of Shear Stress versus Shear Rate Data for Natural Fiber Reinforced Polymer Composites: A Discussion." Journal of Scientific Research 11, no. 1 (2019): 89–100. http://dx.doi.org/10.3329/jsr.v11i1.36450.
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The rheological properties of melt jute fiber reinforced polypropylene (PP) composites were conducted at constant shear stress. The measured shear stress and shear rate data are fitted to a power law model for measuring stress-independent melt viscosity of the composites. The viscosity increased with the increase of fiber loading and decreased with the rise of temperature. The flow behavior index, n was found to decrease with the increase of fiber loading and increase with the rise of temperature. The shear stress and shear rate data collected from different specialized research journals have also been fitted to the power law model to measure the stress-independent melt viscosity and flow index as in all the previous literatures viscosity is treated as stress dependent parameter. It was found that the dependence of the viscosity and the flow index observed from previous literature data with fiber loading and temperature was quite consistent with the present study.
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Khalina, Abdan, E. S. Zainuddin, and I. S. Aji. "Rheological Behaviour of Polypropylene/Kenaf Fibre Composite: Effect of Fibre Size." Key Engineering Materials 471-472 (February 2011): 513–17. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.513.
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In evaluating thermoplastics for their effective performance during processing, rheology properties are very useful. Similarly, in designing processing apparatus, knowledge of rheological behavior of composite melt is critical. In this study, melt flow and viscosity behavior of polypropylene/kenaf fibre composite was investigated using a single-screw extruder. Subsequently, flow behavior of the compounded formulation were evaluated by comparing the melt flow index, flow curve and viscosity curve of the PP and that of the composites at 190oC processing temperature and varying the fibre size. There appears to be a positive linear increase of the apparent shear stress with increase in the apparent shear rate and, as expected, viscosity values for the composite samples are much higher than the PP especially at larger fibre size. The additional of kenaf fibre in composite reduces the MFI value basically because of the hindrances in the plastic flow of the polymer. In addition the increase in viscosity with increase in fibre loading might contributed to the high specific area of the fibre in the matrix thereby increasing the shear stress in the composite. Moreover loading of polymer system with fibre tends to disturb or disorganize the normal free movement of the polymer and certainly hindered the mobility chain segments in flow.
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Chien, Minyuan, Yaotsung Lin, Chaotsai Huang, and Shyhshin Hwang. "Impact of Runner Size, Gate Size, Polymer Viscosity, and Molding Process on Filling Imbalance in Geometrically Balanced Multi-Cavity Injection Molding." Polymers 16, no. 20 (2024): 2874. http://dx.doi.org/10.3390/polym16202874.
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The injection molding process is one of the most widely used methods for polymer processing in mass production. Three critical factors in this process include the type of polymer, injection molding machines, and processing molds. Polypropylene (PP) is a widely used semi-crystalline polymer due to its favorable flow characteristics, including a high melt flow index and the absence of a need for a mold temperature controller. Additionally, PP exhibits good elongation and toughness, making it suitable for applications such as box hinges. However, its tensile strength is a limitation; thus, glass fiber is added to enhance this property. It is important to note that the incorporation of glass fiber increases the viscosity of PP. Multi-cavity molds are commonly employed to achieve cost-effective and efficient mass production. The filling challenges associated with geometrically balanced layouts are well documented in the literature. These issues arise due to the varying shear rates of the melt in the runner. High shear rate melts lead to high melt temperatures, which decrease melt viscosity and facilitate easier flow. Consequently, this results in an imbalanced filling phenomenon. This study examines the impact of runner size, gate size, polymer viscosity, and molding process on the filling imbalanced problem in multi-cavity injection molds. Tensile bar injection molding was performed using conventional injection molding (CIM) and microcellular injection molding (MIM) techniques. The tensile properties of the imbalanced multi-cavity molds were analyzed. Flow length within the cavity served as an indicator of the filling imbalance. Additionally, computer simulations were conducted to assess the shear rate’s effect on the runner’s melt temperature. The results indicated that small runner and gate sizes exacerbate the filling imbalance. Conversely, glass fiber-filled polymer composites also contribute to increased filling imbalance. However, foamed polymers can mitigate the filling imbalance phenomenon.
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Alzahrani, Mohammed, Hesham Alhumade, Leonardo Simon, Kaan Yetilmezsoy, Chandra Mouli R. Madhuranthakam, and Ali Elkamel. "Additive Manufacture of Recycled Poly(Ethylene Terephthalate) Using Pyromellitic Dianhydride Targeted for FDM 3D-Printing Applications." Sustainability 15, no. 6 (2023): 5004. http://dx.doi.org/10.3390/su15065004.
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The suitability of recycled poly(ethylene terephthalate) (R-PET) for 3D-printing applications was evaluated by studying the melt flow characteristics of the polymer. R-PET is known to experience significant deterioration in its mechanical properties when recycled due to molecular weight loss that results from reprocessing. Lower molecular weight hinders R-PET from being 3D-printable due to low viscosity and melt strength. The hypothesis was that R-PET can be modified with reasonable effort and resources to a 3D-printable thermoplastic if the low viscosity problem is tackled. Higher viscosity will enhance both the melt strength and the melt flow characteristic of the polymer, making it more suitable for processing and 3D printing. Reactive extrusion was selected as the method for modifying the polymer to achieve the objective via a coupling reaction with chain extender PMDA (pyromellitic dianhydride). A decrease in the melt flow index (MFI) from 90 to 1.2 (g/10 min) was recorded when PMDA was added at 0.75 wt% which lowered the MFI of modified R-PET to a comparable value to commercial 3D-printing filaments. Furthermore, FT-IR analysis was performed to investigate the chemical composition of the product. Finally, a 3D-printing filament was made from the modified R-PET by mimicking the main processing stations that exist in the filament-making process, which are the extrusion stage, water bath cooling stage and spooling stage. With 0.75 wt% PMDA, the melt strength was satisfactory for pulling the filament and, therefore, a filament with on-spec dimension was produced. Finally, a small object was successfully 3D-printed using the filament product at a minimum recommended temperature of 275 °C.
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Guo, Zhi Hong, Zhen Xi Wen, Qing Yan Xu, Yuan Tian, Gao Qiu, and Yi Min Wang. "Study on Themal and Rheological Properties of POM." Advanced Materials Research 487 (March 2012): 192–97. http://dx.doi.org/10.4028/www.scientific.net/amr.487.192.
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Polyoxymethylene is a linear polymer with excellent performance due to its chemical structure and high crystallinity. The thermal and rheological properties of POM are investigated in this paper. Experimental results indicate that the melting point and decomposition temperature of POM are about 162 °C and 266 °C respectively. POM melt is a non-Newtonian fluid, the apparent viscosity gradually decreased with the increase of shear rate, showing a typical shear-thinning behavior. Non-Newtonian index increased from 0.53 to 0.61 as the melt temperature increased from 190 °C to 230 °C. The flow activation energy of POM melt is between 11.36 and 24.90 kJ/mol within the shear rate range of 90~2500s -1.
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Mysiukiewicz, Olga, Mateusz Barczewski, Katarzyna Skórczewska, and Danuta Matykiewicz. "Correlation between Processing Parameters and Degradation of Different Polylactide Grades during Twin-Screw Extrusion." Polymers 12, no. 6 (2020): 1333. http://dx.doi.org/10.3390/polym12061333.
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This article presents the effect of twin-screw extrusion processing parameters, including temperature and rotational speed of screws, on the structure and properties of four grades of polylactide (PLA). To evaluate the critical processing parameters for PLA and the possibilities for oxidative and thermomechanical degradation, Fourier-transform infrared spectroscopy (FT-IR), oscillatory rheological analysis, and differential scanning calorimetry (DSC) measurements were used. The influence of degradation induced by processing temperature and high shearing conditions on the quality of the biodegradable polyesters with different melt flow indexes (MFIs)was investigated by color analysis within the CIELab scale. The presented results indicate that considering the high-temperature processing of PLA, the high mass flow index and low viscosity of the polymer reduce its time of residence in the plastifying unit and therefore limit discoloration and reduction of molecular weight due to the degradation process during melt mixing, whereas the initial molecular weight of the polymer is not an essential factor.
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Lee, Ji-Eun, Jin-Woo Lee, Jae-Wang Ko, Kyung-Il Jo, Hyun-Ju Park, and Ildoo Chung. "Effects of Recycled Polymer on Melt Viscosity and Crystallization Temperature of Polyester Elastomer Blends." Materials 16, no. 17 (2023): 6067. http://dx.doi.org/10.3390/ma16176067.
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As the world is paying attention to the seriousness of environmental pollution, the need for a resource circulation economy is emerging due to the development of eco-friendly industrial groups. In particular, the recycling of thermoplastic elastomers without cross-link has been highlighted in the plastics field, which has rapidly developed the industry. Growing interests have been directed towards the advancement of thermoplastic polyether–ester elastomer (TPEE) as a material suitable for the circular economy owing to its remarkable recyclability, both in terms of mechanical and chemical processes. Due to its excellent processability, simple mechanical recycling is easy, which is a driving force towards achieving price competitiveness in the process. In molding TPEE resin, it is essential to check the thermal properties of the resin itself because the thermal properties, including the melting and crystallization temperatures of the resin, depend on the design of the polymer. In this study, the thermal and mechanical performances of TPEE blends were evaluated by manufacturing compounds by changing the amount of recycled resin and additives. When the recycled resin was added, the melt flow index (MFI) changed rapidly as the temperature of the melt flow index measurement increased. Rapid changes in MFI make the fiber spinning process uncontrollable and must be controlled by optimizing the addition of compatibilizers. Based on the thermal property results, compatibilizers such as Lotader and Elvaloy series exhibited minimal change in glass transition temperature, even with greater amounts added. This makes them well-suited as compatibilizers for fiber spinning.
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Stanciu, Stan, Sandu, Susac, Fetecau, and Rosculet. "Mechanical, Electrical and Rheological Behavior of Ethylene-Vinyl Acetate/Multi-Walled Carbon Nanotube Composites." Polymers 11, no. 8 (2019): 1300. http://dx.doi.org/10.3390/polym11081300.
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This paper investigates the rheological, mechanical and electrical properties of a Ethylene-Vinyl Acetate (EVA) polymer filled with 1, 3 and 5 wt.% multi-walled carbon nanotubes (MWCNTs). The melt flow and pressure-volume-Temperature (pvT) behaviors of the EVA/MWCNT composites were investigated using a high-pressure capillary rheometer, while the electro-mechanical response was investigated on injection-molded samples. Rheological experiments showed that the melt shear viscosity of the EVA/MWCNT composite is dependent on nanotube loading and, at high shear rates, the viscosity showed temperature-dependent shear thinning behavior with a flow index n < 0.35. The specific volume of the EVA/MWCNT composite decreased with increasing pressure and MWCNT wt.%. The transition temperature, corresponding to the pvT crystallization, increased linearly with increasing pressure, i.e., about 20 to 30 °C when cooling under pressure. The elastic modulus, tensile strength and stress at break increased with increasing MWCNT wt.%, whereas the strain at break decreased, suggesting the formation of MWCNT secondary agglomerates. The electrical conductivity of the EVA/MWCNT composite increased with increasing MWCNT wt.% and melt temperature, reaching ~10−2 S/m for the composite containing 5 wt.% MWCNTs. Using the statistical percolation theory, the percolation threshold was estimated at 0.9 wt.% and the critical exponent at 4.95.
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Doifode, Devanand S., Bharat D. Deorukhkar, Prashant P. Date, and Sergei Alexandrov. "Rheological Behavior of Mixture of Carbonyl Iron Powder (CIP) and High Density Polyethylene (HDPE)." Key Engineering Materials 779 (September 2018): 31–36. http://dx.doi.org/10.4028/www.scientific.net/kem.779.31.
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Rheological study has been performed experimentally by using melt flow index (MFI) tester on a mixture of CI (Carbonyl Iron) powder and HDPE (High-Density Polyethylene) polymer. The rheological properties such as volume flow rate (cm3/s), shear strain rate (s-1) and viscosity (Pa.s) are investigated for varying conditions of temperature and weight (pressure). This also includes experimental determination of viscosity dependence over parameters like temperature, shear strain rate and CI powder loading by weight added in HDPE. For this experimental conditions selected are temperatures 4480K-5230K in steps of 250K, weights in MFI tester (ultimately converted to shear strain rate) 0.325, 1.20, 2.16, 3.80, 5.00Kg and carbonyl iron powder loading in binder HDPE (by weight) 80%-92% in steps of 6%. A constitutive equation for viscosity is formulated which considers all factors affecting viscosity with the maximum percentage error of about 4% between experimental value and value predicted by the formulated equation is obtained.
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Stanciu, Nicoleta-Violeta, Felicia Stan, and Catalin Fetecau. "Experimental Investigation of the Melt Shear Viscosity, Specific Volume and Thermal Conductivity of Low-Density Polyethylene/Multi-Walled Carbon Nanotube Composites Using Capillary Flow." Polymers 12, no. 6 (2020): 1230. http://dx.doi.org/10.3390/polym12061230.
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Understanding the flow behavior of polymer/carbon nanotube composites prior to melt processing is important for optimizing the processing conditions and final product properties. In this study, the melt shear viscosity, specific volume and thermal conductivity of low-density polyethylene (LDPE) filled with multi-walled carbon nanotubes (MWCNTs) were investigated for representative processing conditions using capillary rheometry. The experimental results show a significant increase in the melt shear viscosity of the LDPE/MWCNT composite with nanotube loadings higher than 1 wt.%. Upon increasing shear rates, the composites flow like a power-law fluid, with a shear-thinning index less than 0.4. The specific volume decreases with increasing pressure and nanotube loading, while the pVT transition temperature increases linearly with increasing pressure. The thermal conductivity of the LDPE/MWCNT composite is nearly independent of nanotube loading up to the thermal percolation threshold of 1 wt.% and increases linearly with further increases in nanotube loading, reaching 0.35 W/m·K at 5 wt.%. The Carreau–Winter and Cross viscosity models and Tait equation, respectively, are able to predict the shear viscosity and specific volume with a high level of accuracy. These results can be used not only to optimize processing conditions through simulation but also to establish structure–property relationships for the LDPE/MWCNT composites.
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Cua, Edwin C., and Montgomery T. Shaw. "Creeping Sphere-Plane Squeeze Flow to Determine the Zero-Shear-Rate viscosity of HDPE Melts." Applied Rheology 14, no. 1 (2004): 33–39. http://dx.doi.org/10.1515/arh-2004-0003.
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Abstract A creeping squeeze flow apparatus [1 - 2] was modified with a Fizeau interferometer optical motion transducer and equipped with a high-temperature, high-vacuum enclosure. Long-term squeeze flow experiments were done on a broad-MW, 1 melt-flow index commercial HDPE at 190˚C, with runs covering about a week. Over this period, no thermal degradation of the polymer was observed, and the geometry of the apparatus was stable. Low-shear-rate viscosities were measured within the maximum shear rates from 1.7 × 10−5 to 7.6 × 10−5 1/s (stress ~ 1.7 to 8 Pa), resulting in an two-decade expansion in the experimental window for this difficult-to-characterize HDPE resin with long relaxation times.
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Hadi, Nizar Jawad, and Dhey Jawad Mohamed. "Study the Relation between Flow, Thermal and Mechanical Properties of Waste Polypropylene Filled Silica Nanoparticles." Key Engineering Materials 724 (December 2016): 28–38. http://dx.doi.org/10.4028/www.scientific.net/kem.724.28.
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This paper investigates the flow, thermal and mechanical properties of waste polypropylene (WPP) reinforced with silica (SiO2) nanoparticles (NPs). Recently the researches prove that the addition of NPs to the thermoplastic polymer produces significant change in its properties. SiO2 NPs of 0.001, 0.003, 0.006, 0.009, 0.012 and 0.015wt% were mixed with the WPP using twin screw extruder. The mixing process performed at 10 rpm and 190°C. The topography and particle size distribution of 0.001, 0.006 and 0.015 of SiO2 NPs concentrations samples are analyzed using atomic force microscopy (AFM). The crystallinity of nanocomposite was examined by X-ray diffraction. The melt flow rate (MFR) and melt volume rate (MVR) are tested due to SiO2 NPs concentration at standard condition using melt flow index (MFI) device. The shear viscosity and melt density are calculated using MFR and MVR values. Differential Scanning Calomitry (DSC) is used to show the effect of SiO2 NPs concentration on the thermal history of nanocomposite. Charpy impact strength and hardness are tested. The results show that the MFR and MVR increase with the NPs concentration increasing. The shear viscosity decreases with MFR and MVR increasing. The crystallinity level and the crystallinity temperature decreases with SiO2 NPs concentration increasing while impact and hardness increasing. Clear difference between solid and melt density is observed. There is a compatible between the thermal, flow and mechanical properties of different SiO2 nanocomposite samples.
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Abdul Azam, Farah ‘Atiqah, Zakaria Razak, Mohd Khairul Fadzly Md Radzi, Norhamidi Muhamad, Che Hassan Che Haron, and Abu Bakar Sulong. "Influence of Multiwalled Carbon Nanotubes on the Rheological Behavior and Physical Properties of Kenaf Fiber-Reinforced Polypropylene Composites." Polymers 12, no. 9 (2020): 2083. http://dx.doi.org/10.3390/polym12092083.
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The incorporation of kenaf fiber fillers into a polymer matrix has been pronounced in the past few decades. In this study, the effect of multiwalled carbon nanotubes (MWCNTs) with a short kenaf fiber (20 mesh) with polypropylene (PP) added was investigated. The melt blending process was performed using an internal mixer to produce polymer composites with different filler contents, while the suitability of this melt composite for the injection molding process was evaluated. Thermogravimetric analysis (TGA) was carried out to investigate the thermal stability of the raw materials. Rheological analyses were conducted by varying the temperature, load factor, and filler content. The results demonstrate a non-Newtonian pseudoplastic behavior in all samples with changed kenaf fillers (10 to 40 wt %) and MWCNT contents (1 to 4 wt %), which confirm the suitability of the feedstock for the injection molding process. The addition of MWCNTs had an immense effect on the viscosity and an enormous reduction in the feedstock flow behavior. The main contribution of this work is the comprehensive observation of the rheological characteristics of newly produced short PP/kenaf composites that were altered after MWCNT additions. This study also presented an adverse effect on the composites containing MWCNTs, indicating a hydrophilic property with improved water absorption stability and the low flammability effect of PP/kenaf/MWCNT composites. This PP/kenaf/MWCNT green composite produced through the injection molding technique has great potential to be used as car components in the automotive industry.
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Adısanoğlu, Pınar, and Işık Özgüney. "Development and Characterization of Thermosensitive and Bioadhesive Ophthalmic Formulations Containing Flurbiprofen Solid Dispersions." Gels 10, no. 4 (2024): 267. http://dx.doi.org/10.3390/gels10040267.
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In this study, we aimed to develop thermosensitive and bioadhesive in situ gelling systems containing solid dispersions of flurbiprofen (FB-SDs) using poloxamer 407 (P407) and 188 (P188) for ophthalmic delivery. FB-SDs were prepared with the melt method using P407, characterized by solubility, stability, SEM, DSC, TGA, and XRD analyses. Various formulations of poloxamer mixtures and FB-SDs were prepared using the cold method and P407/P188 (15/26.5%), which gels between 32 and 35 °C, was selected to develop an ophthalmic in situ gelling system. Bioadhesive polymers Carbopol 934P (CP) or carboxymethyl cellulose (CMC) were added in three concentrations (0.2, 0.4, and 0.6% (w/w)). Gelation temperature and time, mechanical properties, flow properties, and viscosity values were determined. The in vitro release rate, release kinetics, and the release mechanism of flurbiprofen (FB) from the ophthalmic formulations were analyzed. The results showed that FB-SDs’ solubility in water increased 332-fold compared with FB. The oscillation study results indicated that increasing bioadhesive polymer concentrations decreased gelation temperature and time, and formulations containing CP gel at lower temperatures and in a shorter time. All formulations except F3 and F4 showed Newtonion flow under non-physiological conditions, while all formulations exhibited non-Newtonion pseudoplastic flow under physiological conditions. Viscosity values increased with an increase in bioadhesive polymer concertation at physiological conditions. Texture profile analysis (TPA) showed that CP-containing formulations had higher hardness, compressibility, and adhesiveness, and the gel structure of formulation F4, containing 0.6% CP, exhibited the greatest hardness, compressibility, and adhesiveness. In vitro drug release studies indicated that CP and CMC had no effect below 0.6% concentration. Kinetic evaluation favored first-order and Hixson–Crowell kinetic models. Release mechanism analysis showed that the n values of the formulations were greater than 1 except for formulation F5, suggesting that FB might be released from the ophthalmic formulations by super case II type diffusion. When all the results of this study are evaluated, the in situ gelling formulations prepared with FB-SDs that contained P407/P188 (15/26.5%) and 0.2% CP or 0.2% CMC or 0.4 CMC% (F2, F5, and F6, respectively) could be promising formulations to prolong precorneal residence time and improve ocular bioavailability of FB.
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Pongmuksuwan, Pornlada, Naret Intawong, and Pornsak Srisungsitthisunti. "Recycling PET Bottles for 3D-Printing Filament: Effect of Chain Extender." Materials Science Forum 1103 (October 25, 2023): 103–8. http://dx.doi.org/10.4028/p-ck8evp.
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This study investigates the effect of a chain extender on the properties of recycled polyethylene terephthalate (rPET) for 3D printing filament. The research focuses on the melt flow index (MFI), mechanical properties, thermal behavior, and crystallinity of rPET blends with varying chain extender concentrations. MFI analysis reveals that the viscosity of rPET is influenced by the grade and sources of the PET bottles. The addition of the chain extender decreases MFI, indicating increased viscosity. Mechanical testing shows a slight decrease in impact strength with increasing chain extender concentration, suggesting the presence of limitations or constraints within the material. Thermal analysis demonstrates that the chain extender elevates the glass transition temperature (Tg) and melting temperature (Tm) of rPET, indicating enhanced rigidity and thermal resistance. However, the crystallinity (Xc) decreases as the chain extender disrupts the regular packing of polymer chains within the crystalline regions. These findings provide valuable insights into the influence of the chain extender on the properties of rPET for 3D printing filament. The research contributes to the development of sustainable manufacturing practices and promotes the utilization of recycled materials in additive manufacturing applications, furthering the goals of the circular economy and environmental sustainability.
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Sanchez-Solis, Antonio, Ricardo Perez Chavez, and Octavio Manero Brito. "Analysis on the effect of nanographite obtained by an ultrasound technique in polypropylene compounds." Journal of Thermoplastic Composite Materials 33, no. 2 (2018): 254–69. http://dx.doi.org/10.1177/0892705718805181.
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In this work, the effect of inclusion of nanographite particles in a polypropylene (PP) matrix is studied. Nanographite particles were obtained through ultrasound exfoliation from graphite upon using a water-based hydrophobically modified alkali-swellable emulsion (HASE) associative polymer as a surfactant. Results indicate that exfoliation renders particle size distribution ranging from 3 to 3000 nanometers. Nanographite was blended with PP through two extrusion processes: twin screw and single screw, the latter includes the coupling to a static-mixer head, to generate extensional flows. Concurrently, ultrasonic waves are applied to the molten flow through ultrasonic transducers attached to the mixing head, which induces high particle dispersion and good particle distribution in the polymer matrix. It was found that at HASE concentration of 5% by weight and sonication time of 14 days (period of the exfoliation process), optimum tensile properties of the compound were achieved. Also, with respect to the PP matrix, the rate of thermal degradation decreased from 2.1 (PP) to 1.9 (% °C−1), melt temperature ranged from 442°C (PP) to 396°C, and melt index decreased from 7.4 (PP) to 6.2 (g/10 min). Raman spectroscopy confirmed the exfoliation process, rendering sizes ranged from graphite particles of few graphene layers to micron-sized particles. Rheological measurements of the compounds revealed that the extrusion-ultrasound process influences the viscosity, storage, and loss moduli. The dispersion and distribution of nanoparticles improved the electromagnetic radiation shield (approximately 35%). The dielectric constant changed from 2.21 (pristine PP) to 9.02 for the compounds, which enables a good level of electrostatic charge dissipation.
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Kajaks, Jānis, Karlis Kalnins, and Juris Matvejs. "Rheological Properties of Wood Plastic Composites Based on Polypropylene and Birch Plywood Residues - Sanding Dust." Key Engineering Materials 951 (August 7, 2023): 85–92. http://dx.doi.org/10.4028/p-lpbnp2.
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This article summarizes the investigation results of the rheological and thermal stability properties of industrially prepared wood plastic composites based on virgin polypropylene (PP) and birch plywood production waste product, plywood sanding dust (PSD). Wood plastic composites (WPCs) PP+40 wt.% PSD contain different modifiers, such as functional lubricant Struktol TWP, antioxidant 1010, thermal stabilizer 168, ultraviolet (UV) stabilizer 770, and pigment concentrate based on low density polyethylene (LDPE). According to these studies, it was concluded that rheological properties studied by the capillary rheometry method depend on WPC composition and the parameters of rheological measurements. On the contrary, melt flow index (MFI) values did not change so much and fluctuated in the range of 1.52–1.66 g/10 min. The presence of thermal and antioxidant stabilizers promoted an increase in the thermal stability of WPCs, as determined by the thermal gravimetric analysis (TGA) method. The characteristics of fluidity curves indicated the character of typical pseudo-plastic liquids, in which viscosity not only depends on temperature, shear stress, and shear deformation rate but also decreases with an increase in shear deformation rate. That also confirmed the values of the fluidity index (n), which for pseudo-plastic polymer melts are always smaller than 1.
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Lavoie, Fernando Luiz, Marcelo Kobelnik, Clever Aparecido Valentin, Érica Fernanda da Silva Tirelli, Maria de Lurdes Lopes, and Jefferson Lins da Silva. "Environmental Protection with HDPE Geomembranes in Mining Facility Constructions." Construction Materials 1, no. 2 (2021): 122–33. http://dx.doi.org/10.3390/constrmater1020009.
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The present work evaluated two high-density polyethylene (HDPE) geomembranes exhumed from mining facility constructions in Brazil. The MIN sample was exhumed from a pond for water use for the iron ore process after 7.92 years of exposure. The MIN2 sample was exhumed from a spillway channel of a ferronickel tailing dam after 10.08 years of service. The physical evaluations showed high depletion for antioxidants that work in the temperature range of 200 °C. The samples presented brittle tensile behavior and had similar behaviors between stress cracking and tensile. Low tensile elongation values and low-stress crack resistance were noted. The MIN2 sample presented a higher melt flow index (MFI) value and lower stress crack resistance. Thermogravimetric curves (TG) under synthetic air purge gas evaluation showed that both samples presented a similar behavior during the evaluation but had several mass losses. The results showed that exothermic and endothermic events occurred with loss of mass and showed no combustion events in the differential thermal analysis (DTA) curve evaluation. Differential scanning calorimetry (DSC) analysis showed no changes in the samples’ behavior. Thus, the results of tensile, stress cracking, and viscosity properties can demonstrate that changes in polymer structure occurred after field exposures.
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Fredi, Giulia, Andrea Dorigato, Luca Fambri, José-Marie Lopez-Cuesta, and Alessandro Pegoretti. "Synergistic effects of metal hydroxides and fumed nanosilica as fire retardants for polyethylene." Flame Retardancy and Thermal Stability of Materials 2, no. 1 (2019): 30–48. http://dx.doi.org/10.1515/flret-2019-0004.
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AbstractThis work aims to study the synergistic effect of aluminum/magnesium hydroxide microfillers and organomodified fumed silica nanoparticles as flame retardants (FRs) for linear low-density polyethylene (LLDPE), and to select the best composition to produce a fire-resistant polyethylene-based single-polymer composite. The fillers were added to LLDPE at different concentrations, and the prepared composites were characterized to investigate the individual and combined effects of the fillers on the thermo-oxidation resistance and the fire performance, as well as the microstructural, physical, thermal and mechanical properties. Both filler types were homogeneously distributed in the matrix, with the formation of a network of silica nanoparticles at elevated loadings. Melt flow index (MFI) tests revealed that the fluidity of the material was not considerably impaired upon metal hydroxide introduction, while a heavy reduction of the MFI was detected for silica contents higher than 5 wt%. FRs introduction promoted a noticeable enhancement of the thermo-oxidative stability of the materials, as shown by thermogravimetric analysis (TGA) and onset oxidation temperature (OOT) tests, and superior thermal properties were measured on the samples combining micro- and nanofillers, thus evidencing synergistic effects. Tensile tests showed that the stiffening effect due to a high content of metal hydroxide microparticles was accompanied by a decrease in the strain at break, but nanosilica at low concentration contributed to preserve the ultimate mechanical properties of the neat polymer. The fire performance of the samples with optimized compositions, evaluated through limiting oxygen index (LOI) and cone calorimetry tests, was strongly enhanced with respect to that of the neat LLDPE, and also these tests highlighted the synergistic effect between micro- and nanofillers, as well as an interesting correlation between fire parameters and viscosity.
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Nikitakos, Vasilis, Athanasios D. Porfyris, Konstantinos Beltsios, et al. "Closed-Loop Recycling of Poly(vinyl butyral) Interlayer Film via Restabilization Technology." Polymers 17, no. 3 (2025): 317. https://doi.org/10.3390/polym17030317.
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Polyvinyl butyral (PVB) is a specialty polymer primarily used as an interlayer in laminated glass applications with no current circularity plan after the end of its life. This study presents a comprehensive recycling strategy for postconsumed PVB wastes based on a remelting–restabilization approach. Thermo-oxidative degradation of PVB was analyzed under heat and shear stress conditions in an internal mixer apparatus. The degradation mechanism of plasticized PVB (p-PVB) and unplasticized PVB (u-PVB) was identified as chain scission through melt flow rate (MFR), intrinsic viscosity (IV), and yellowness index (YI) characterization. Six different antioxidant (AO) formulations were screened for their effectiveness in inhibiting degradation in both neat u-PVB and p-PVB, as well as retrieved PVB. The phenolic antioxidants 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene and 4-[[4,6-bis(octylsulfanyl)-1,3,5-triazin-2-yl]amino]-2,6-di-tert-butylphenol were found to be the most effective ones based on MFR, oxidation onset temperature (OOT), and YI evaluations, while the optimal AO concentration was determined at 0.3% w/w. Furthermore, upscaling of the process was achieved by mixing virgin PVB and high-quality retrieved PVB wastes with AOs in a twin-screw extruder. Testing of the recycled samples confirmed that the selected AOs offered resilience against degradation at reprocessing and protection during the next service life of the material.
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Hrimchum, Kittipong, Darunee Aussawasathien, and Todsapol Kajornprai. "Injection Moldable Poly(Lactic Acid)-Poly(Butylene Succinate)-Activated Carbon Composite Foams: Effects of PLA/PBS Ratios." Key Engineering Materials 798 (April 2019): 322–30. http://dx.doi.org/10.4028/www.scientific.net/kem.798.322.
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Poly (lactic acid) (PLA)-poly (butylene succinate) (PBS)-activated carbon (AC) composites were foamed via an injection molding process. Azodicarbonamide (ADC) was used as a chemical blowing agent. The effect of PLA/PBS ratios (0/100, 10/90, 20/80, 30/70, 40/60, 50/50 wt% and vice versa) on the cell formation and properties of composite foams such as cellular structure, foam density (ρf), void fraction (Vf), cell density, melt flow index (MFI), thermal and mechanical properties and crystallinity were investigated. At same ADC and AC loadings (5 phr), PBS acted as nucleating sites for cell generation and expansion at low contents ( 40 wt%). However, the cell size had a tendency to decrease at high PBS concentrations (> 40 wt%). The cell density of composite foams was somewhat constant at PLA/PBS ratios up to 60/40 wt% and then continuously increased as the PBS dosage was higher than 40 wt%. The maximum reduction of foam density with the void fraction of 20% was obtained at the PLA/PBS ratio of 60/40. The melt viscosity of composite foams increased with the increase of PBS loadings. The tensile strength and Young’s modulus of composite foams decreased while the elongation at break and impact strength increased as the proportion of PBS increased. The cold crystallization temperature (Tcc) of PLA in the composite foam tended to decrease with the reduction of PLA contents while the melting temperatures (Tm) of PLA in composite foams fluctuated without any trend compared with those of the unfoamed PLA. The Tcc of PLA in composite foams could not be detected when the content of PBS was higher than 40 wt%. The crystallization temperature (Tc) and Tm of PBS in composite foams was almost unchanged for each PLA/PBS proportion compared with those of the unfoamed PBS. The crystallinity (Xc) of PLA in composite foams increased compared with the unfoamed PLA at PBS contents of 0-20 wt% due to the nucleating effect of PBS and AC. The Xc of PLA (at PBS > 20 wt%) and PBS in composite foams decreased with the reduction of each polymer.
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Eutionnat-Diffo, Prisca Aude, Aurélie Cayla, Yan Chen, Jinping Guan, Vincent Nierstrasz, and Christine Campagne. "Development of Flexible and Conductive Immiscible Thermoplastic/Elastomer Monofilament for Smart Textiles Applications Using 3D Printing." Polymers 12, no. 10 (2020): 2300. http://dx.doi.org/10.3390/polym12102300.
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3D printing utilized as a direct deposition of conductive polymeric materials onto textiles reveals to be an attractive technique in the development of functional textiles. However, the conductive fillers—filled thermoplastic polymers commonly used in the development of functional textiles through 3D printing technology and most specifically through Fused Deposition Modeling (FDM) process—are not appropriate for textile applications as they are excessively brittle and fragile at room temperature. Indeed, a large amount of fillers is incorporated into the polymers to attain the percolation threshold increasing their viscosity and stiffness. For this reason, this study focuses on enhancing the flexibility, stress and strain at rupture and electrical conductivity of 3D-printed conductive polymer onto textiles by developing various immiscible polymer blends. A phase is composed of a conductive polymer composite (CPC) made of a carbon nanotubes (CNT) and highly structured carbon black (KB)- filled low-density polyethylene (LDPE) and another one of propylene-based elastomer (PBE) blends. Two requirements are essential to create flexible and highly conductive monofilaments for 3D-printed polymers onto textile materials applications. First, the co-continuity of both the thermoplastic and the elastomer phases and the location of the conductive fillers in the thermoplastic phase or at the interface of the two immiscible polymers are necessary to preserve the flexibility of the elastomer while decreasing the global amount of charges in the blends. In the present work based on theoretical models, when using a two-step melt process, the KB and CNT particles are found to be both preferentially located at the LDPE/PBE interface. Moreover, in the case of the two-step extrusion, SEM characterization showed that the KB particles were located in the LDPE while the CNT were mainly at the LDPE/PBE interface and TEM analysis demonstrated that KB and CNT nanoparticles were in LDPE and at the interface. For one-step extrusion, it was found that both KB and CNT are in the PBE and LDPE phases. These selective locations play a key role in extending the co-continuity of the LDPE and PBE phases over a much larger composition range. Therefore, the melt flow index and the electrical conductivity of monofilament, the deformation under compression, the strain and stress and the electrical conductivity of the 3D-printed conducting polymer composite onto textiles were significantly improved with KB and CNT-filled LDPE/PBE blends compared to KB and CNT-filled LDPE separately. The two-step extrusion processed 60%(LDPE16.7% KB + 4.2% CNT)/40 PBE blends presented the best properties and almost similar to the ones of the textile materials and henceforth, could be a better material for functional textile development through 3D printing onto textiles.
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Calambás Pulgarin, Heidy Lorena, and Carolina Caicedo. "Barrier, Mechanical, Thermal, and Rheological Properties of Plasticized Biopolymeric Films Manufactured by Co-Extrusion." Processes 12, no. 3 (2024): 524. http://dx.doi.org/10.3390/pr12030524.
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The thermal, rheological, mechanical, and barrier properties of flat biopolymeric films processed by extrusion with different proportions of plasticizer and surfactant were evaluated. In the first stage, pellets were developed through twin-screw extrusion using a temperature profile in the ascending step process. These samples were analyzed using rotational rheology analysis to understand the viscoelastic transitions through the behavior of the storage and loss modulus, as well as the incidence of complex viscosity concerning concentration. The interaction among the components was analyzed under infrared spectroscopy after the two processing stages, revealing the miscibility of the mixture due to the action of the surfactant. The degradation temperatures increased by more than 20 °C, generating thermal stability, and the temperatures related to polymer transitions were determined. In the second stage, co-extrusion was carried out using pellets from the blend with a melt flow index (MFI) suitable for this process. The samples TPS50-PLA50-T5 and TPS75-PLA25-T5-A10 presented MFI values of 2.27 and 1.72 g/10 min, respectively. These samples were co-extruded for the production of films, impacting the physical properties. The resistance to traction, Young’s modulus, and elongation showed limited effectiveness of plasticizer and surfactant, with high resistance and elongation values (4.276 MPa and 2.63%) in the TPS50-PLA50-T5 film. Additionally, morphological analysis showed the detailed action of the plasticizer on the regular shapes of threads as a product of deformation during material processing. The barrel properties exhibited limited biopolymer–plastic–tensile miscibility, resulting in different water vapor permeability for the TPS75-PLA25-T5-A10 film on each side (a difference of two orders of magnitude). The contact angle corroborated the effect, with values in each case ranging from 103.7° to 30.3°. In conclusion, we assert that biopolymeric films, when modified with plasticizers and surfactants, can be tailored for various applications within the packaging sector while maintaining control over each film.
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Ayarema, Afio, Lolo Komlan, Attipou Kodjo, Zerhouni Nour, and Tiem. Sonnou. "CHARACTERIZATION OF THE FLOWING BEHAVIOUR OF TWO (2) POLYMETHACRYLATE METHYL DURING IMPLEMENTATION BY EXPERIMENTAL MEASUREMENT OF THE MELT FLOW FLUIDITY INDEX FOR THE RECYCLING OF USED PLASTICS." October 15, 2019. https://doi.org/10.5281/zenodo.3545557.
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The present study consists in obtaining rheological data of two polymers from the experimental data obtained from the measurements of their melt indices and using a simple apparatus, the \"meltindexer? or ?meltflixer\" currently available in the polymers processing industry. The objective of this work is to model the behavior of two (2) polymethacrylate methyl polymers in the process of implementation. The methodology used consists of conducting tests associated with the metrology of the melt flow index (MFI or IF), replacing the standardized conditions of these tests by a selection of masses and adjustable temperatures. The results obtained made it possible to produce rheograms and a characterization of the non-Newtonian and viscofluidifying behavior of the polymers studied. The pseudo-plastic behavior of the selected polymers was determined for which it was determined: - their yield stress, 1. the consistency K 2. their flow index n, 3. and the limit viscosity . From a practical point of view, the lawfulness of these descriptive tests of the polymer for low shear rates [0,1; 10 s-1] applied. danger of indiscriminate dumping of wastes as they affect human health.
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Jiang, Lin, Run Zhang, and Ping Xue. "Reaction and rheological kinetics in bulk polymerization of poly(lactic acid)‐based polyurethanes." Polymer Engineering & Science, March 18, 2025. https://doi.org/10.1002/pen.27179.
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AbstractThe apparent viscosity of polylactic acid‐based polyurethane (PLA‐TPU) during the polymerization process is influenced by the reaction progress, reaction temperature, and shear rate. PLA‐TPU with varying degrees of reaction was synthesized via one‐step bulk polymerization, utilizing polylactic acid diol, 4,4′‐diphenylmethane diisocyanate, and 1,4‐butanediol as raw materials. Using torque as the parameter to evaluate the conversion rate of monomers, linear regression yielded the reaction activation energy of 31.84 kJ/mol. The chemical structure, rheological kinetics, and viscosity model of PLA‐TPU were studied using Fourier transform infrared spectroscopy, Nuclear Magnetic Resonance Spectroscopy, Gel permeation chromatography, and the rotary rheometer. The results indicate that under the condition of the shear rate of 1 s−1, the viscosity of the reaction system is proportional to the weight‐average molecular weight raised to the power of 2.8766. The temperature variation follows the Arrhenius equation, with the viscous flow activation energy of 12.83 kJ/mol. The reaction system exhibits pseudoplastic fluid characteristics, and the shear thinning law of its apparent viscosity can be described using the power‐law model, with a flow index of 0.5694. This viscosity model can rapidly predict the apparent viscosity of the PLA‐TPU reaction system under specified conditions. It can serve as a guide for optimizing and designing polymerization reactors, and the modeling process can also offer insights for the study of other stepwise polymerization processes.Highlights Torque can characterize the conversion rate of monomers in linear polymerization. The molecular weight growth of TPU conforms to the second‐order reaction law. TPU melt is a pseudoplastic fluid that conforms to a power‐law model. Established a viscosity model influenced by time, temperature, and shear rate. The viscosity model can guide the design of reactors.
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da Cruz, Jéssica Sant'Anna, Lara Murakava, Alcione Alves de Freitas, Marcos Vinicius Lorevice, and Marina Fernandes Cosate de Andrade. "Comprehending the Degradation of Poly(Lactic Acid) During Processing: The Effect of Calcium Stearate." Polymer Engineering & Science, June 20, 2025. https://doi.org/10.1002/pen.70023.
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ABSTRACTPoly(lactic acid) (PLA) is a promising biopolymer for packaging applications. However, efforts have been focused on improving its processability. Metal stearates are applied in the thermoplastic polymer industry as lubricating agents to enhance the processability of these polymers, although the comprehension regarding their thermostability is still unclear. Herein, a melt‐mixing technique was employed to produce PLA composites modified with calcium stearate. The effects of the additive were evaluated from 0.1 to 0.7 wt.% of calcium stearate, all incorporated into the PLA matrix at 200°C. Melt flow index (MFI) indicated a reduction in the viscosity of the modified materials. However, the significant decrease observed at concentrations above 0.3 wt.% suggested a potential polymer degradation due to the addition of calcium stearate. This phenomenon was related to the scission of the PLA chains in the presence of metal stearates during processing, which was supported by results from gel permeation chromatography (GPC) and thermal analyses. As the calcium stearate content increased, the materials exhibited a decrease in molecular weight, degradation temperature, and degree of crystallinity. In addition, calcium stearate could be incorporated into PLA at 180°C and low frequencies, conditions that avoided polymer degradation, as shown by parallel plate rheometry.
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Yang, Zhitao, Cheng Li, Yong Liu, Zhen Zhang, and Xianwu Cao. "Effect of chain extension on processability and mechanical properties of poly(3‐hydroxybutyrate‐co‐4‐hydroxybutyrate)." Journal of Applied Polymer Science, March 22, 2024. http://dx.doi.org/10.1002/app.55490.
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AbstractPoly(3‐hydroxybutyrate‐4‐hydroxybutyrate) (P34HB) copolyester is a new type of biodegradable polymer material, but it cannot meet the market requirements because of its poor thermal stability. In this work, P34HB with a low degree of cross‐linking was successfully prepared by incorporating a small amount of a multiple epoxy chain extender, known as Joncryl ADR‐4380 (styrene‐methacrylic acid glycidyl ester copolymer), through reactive extrusion. The rheological properties, thermal stability, thermal behavior, and mechanical properties of the materials were investigated. Fourier transform infrared spectroscopy and gel content test showed that there was a significant chemical interaction between P34HB and ADR4380, and a cross‐linked structure was produced. Compared with pure P34HB, the samples after chain extension showed improved rheological properties, with increased viscosity and melt elasticity due to the formation of a gel network. Thermogravimetric analysis, dynamic time scanning experiment, and melt flow index (MFI) provided strong evidence for the enhanced of thermal stability of P34HB. The onset decomposition temperature of P34HB increased by 13.5°C, and its MFI decreased from 23.30 to around 5 at 170°C, and the complex viscosity remained relatively stable with time after modification. In terms of mechanical properties, the maximum elongation at break increased by 88.08% due to the improvement of toughness.
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Roja, K. Lakshmi, Amara Rehman, Mabrouk Ouederni, Senthil Kumar Krishnamoorthy, Ahmed Abdala, and Eyad Masad. "Influence of polymer structure and amount on microstructure and properties of polyethylene-modified asphalt binders." Materials and Structures 54, no. 2 (2021). http://dx.doi.org/10.1617/s11527-021-01683-0.
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AbstractIn recent years, the use of polyethylene (PE) for asphalt modification has been gaining increased attention due to the environmental sustainability and cost-saving benefits. To optimize the performance of the PE-asphalt blends, it is necessary to understand the polymer-binder interactions and their impact on the properties of the modified asphalt binder. In this study, low-density polyethylene (LDPE) with low and high melt flow index (MFI), i.e., LDPE4 and LDPE70, were blended with Pen 60-70 asphalt binder in dosages ranging from 1 to 5 wt.%. PE Wax was also added to the binder or the PE-binder blend to enhance dispersion. The dispersion of PE in the binder and the phase stability of the modified binder were investigated by optical microscope. The equivalent diameter of PE domains increased with time and the polymer dosage level. The addition of PE wax improved the polymer dispersity in the LDPE4 blends. The polymer dispersity in LDPE70 blends was good without adding PE Wax, attributed to the higher MFI value (low molecular weight) of LDPE70. In addition, to understand the stability of polymer modified binder, the steady shear viscosity-temperature profile of these binders was studied using a rotational viscometer. The dynamic rheological properties and performance of the PE-binder blends were evaluated using the dynamic shear rheometer. Based on the microstructure, all other rheological and performance properties, it was concluded that the 3% LDPE70 binder has better polymer dispersity, better low and high temperature performance characteristics.
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Periasamy, Diwahar, Bharathi Manoharan, K. Niranjana, D. Aravind, Senthilkumar Krishnasamy, and Varagunapandiyan Natarajan. "Recycling of thermoset waste/high‐density polyethylene composites: Examining the thermal properties." Polymer Composites, November 22, 2023. http://dx.doi.org/10.1002/pc.27953.
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AbstractIn this work, an attempt was made to use recycled thermosetting polymer waste (RTPW) to reduce the environmental impacts. The RTPW and high‐density polyethylene (HDPE) were used to fabricate the composites using melt mixing, a twin‐screw extruder, and an injection molding machine. The weight ratios varied between the HDPE/RTPW: 100:0, 95:5, 90:10, and 85:15 and subjected to different thermal property studies. The thermal properties were evaluated by melt flow index (MFI), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), heat deflection temperature (HDT), and VICAT softening temperature (VST). Results showed a noticeable MFI increase from 9.3 to 14.6 g/10 min in HDPE + RTPW (95:5) composite samples. It was ascribed to the presence of RTPW, resulting in reduced viscosity. DSC reported a minor change in the melting temperature of HDPE due to adding 5% RTPW and 6% polyethylene‐grafted maleic anhydride. These results suggested that the HDPE's crystallinity was minimally changed. Similarly, the onset and end‐set temperatures were increased by incorporating RTPW in TGA, highlighting the influence of thermosetting polymers. Then, the HDT and VSTs were improved by adding RTPW. These observations collectively demonstrate that using RTPW enhances the thermal behavior of HDPE composites while promoting environmental sustainability.Highlights Composites made using RTPW and HDPE. Addition of thermoset waste improved the thermal behavior of samples. Different weight ratios were followed: 100:0, 95:5, 90:10, and 85:15. MFI increased to 14.6 g/10 min for HDPE + RTPW (95:5). HDPE exhibited a minor change in melting temperature in DSC analysis.
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Bezerra, Elieber Barros, Renate Maria Ramos Wellen, Carlos Bruno Barreto Luna, Eduardo da Silva Barbosa Ferreira, Emanuel Pereira do Nascimento, and Edcleide Maria Araújo. "Toward the production of biopolyethylene‐based ecocomposites with improved performance: The potential of eggshell particles as an ecological additive." Journal of Applied Polymer Science, March 17, 2024. http://dx.doi.org/10.1002/app.55439.
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AbstractLow‐density biopolyethylene (BioLDPE) ecocomposites added with particles of eggshell (ES) residue were produced using linear low‐density polyethylene grafted with maleic anhydride (LDPE‐g‐MA) as a compatibilizing agent. BioLDPE/ES and BioLDPE/ES/LDPE‐g‐MA compounds were processed in a twin‐screw extruder, and the specimens were injection molded. Torque rheometry increased and melt flow index reduced more prominently for the BioLDPE/LDPE‐g‐MA biocomposite with 20 phr ES, suggesting higher viscosity. Consequently, there was a higher level of ES particles breakdown, generating greater distribution and dispersion, as verified in optical microscopy and scanning electron microscopy images. This finding was supported by Fourier transform infrared spectroscopy, considering the intense absorption band at 871 cm−1 for BioLDPE/ES (20 phr)/LDPE‐g‐MA biocomposite, indicating a higher level of ES particles dispersion in BioLDPE matrix. Therefore, BioLDPE/ES (20 phr)/LDPE‐g‐MA biocomposite increased the elastic modulus, tensile strength, Shore D hardness, and heat deflection temperature by 51.4%, 16.9%, 16.4%, and 14, 6%, respectively, related to BioLDPE. Additionally, the flexibility was kept as seen in the elongation at break and impact strength, including not fractured during the impact test. Reported results for the biocomposites are valuable mainly for the polymer additive sector, since the ES has the potential to improve BioLDPE properties, expanding the range of applications.