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Journal articles on the topic 'Injection moulding; Extrusion'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Etxabide, Alaitz, Koro de la Caba, and Pedro Guerrero. "A novel approach to manufacture porous biocomposites using extrusion and injection moulding." European Polymer Journal 82 (September 2016): 324–33. http://dx.doi.org/10.1016/j.eurpolymj.2016.04.001.

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2

Domenek, Sandra, Françoise Berzin, Violette Ducruet, et al. "Extrusion and injection moulding induced degradation of date palm fibre - polypropylene composites." Polymer Degradation and Stability 190 (August 2021): 109641. http://dx.doi.org/10.1016/j.polymdegradstab.2021.109641.

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3

Gigante, Vito, Patrizia Cinelli, Marco Sandroni, Roberto D’ambrosio, Andrea Lazzeri, and Maurizia Seggiani. "On the Use of Paper Sludge as Filler in Biocomposites for Injection Moulding." Materials 14, no. 10 (2021): 2688. http://dx.doi.org/10.3390/ma14102688.

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The potential use of paper sludge (PS) as filler in the production of bio-composites based on poly lactic acid (PLA) and polybutylene adipate terephthalate (PBAT) was investigated. PS/PLA/PBAT composites, with addition of acetyl tributyl citrate (ATBC) as biobased plasticizer, were produced with PS loadings up to 30 wt.% by twin-screw extrusion followed by injection moulding. The composites were characterized by rheological measurements, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and mechanical tests (tensile and impact resistance) to study the effect of PS on th

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4

Pham, T. L., J. Balcaen, J. Y. Charmeau, and Yves Bereaux. "In-Line Visualisation of Polymer Plastication in an Injection Moulding Screw." Key Engineering Materials 554-557 (June 2013): 1683–91. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1683.

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In injection moulding or in extrusion, plastication is the step during which polymer pellets are melted by the means of mechanical dissipation provided by a rotating screw and by thermal conduction coming from a heated metallic barrel. This step is crucial for melt thermal homogeneity, charge dispersion and fibre length preservation. Although there have been a large number of theoretical and experimental studies of plastication during the past decades, mostly on extrusion and mostly using the screw extraction technique, extremely few of them have dealt with trying to visualise plastication, le

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5

Mayrhofer, P. "High heat applications for ELIX® 300 modified rigid PVC in injection moulding, extrusion, calandering and blow moulding." Makromolekulare Chemie. Macromolecular Symposia 29, no. 1 (1989): 253–65. http://dx.doi.org/10.1002/masy.19890290119.

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6

Anguita, D., A. Boni, and L. Tagliafico. "SVM performance assessment for the control of injection moulding processes and plasticating extrusion." International Journal of Systems Science 33, no. 9 (2002): 723–35. http://dx.doi.org/10.1080/00207720210147098.

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7

González, Daniel, Ana Rita Campos, Antonio M. Cunha, Valentín Santos, and Juan Carlos Parajó. "Assessment on the effects of the operational conditions on the manufacture of PLA-based composites using an integrated compounding–injection moulding machine." Collection of Czechoslovak Chemical Communications 76, no. 12 (2011): 1509–27. http://dx.doi.org/10.1135/cccc2011166.

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Cellulose fibres were employed as reinforcement agent for biodegradable composites using polylactic acid (PLA) as a polymer matrix. PLA can be obtained from renewable resources, and it is attracting much interest owing to its favourable physico-mechanical properties and biodegradability. Prior to composite compounding, two commercial PLA from different suppliers were characterized for apparent density, flow index, crystallinity, thermal properties, melt flow rheology and intrinsic viscosity for comparison. In experiments performed with an integrated compounding–injection moulding machine (ICIM

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8

Gawdzinska, Katarzyna, Marcin Nabialek, Andrei Victor Sandu, and Katarzyna Bryll. "The Choice of Recycling Methods for Single-Polymer Polyester Composites." Materiale Plastice 55, no. 4 (2018): 658–65. http://dx.doi.org/10.37358/mp.18.4.5096.

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This work has described the production of single-polymer composites by the film-stacking method. Two types of single-polymer composites with different mass fractions of the polyester reinforcement phase (10% and 20%) and the PETG matrix were investigated. The produced composites were subsequently recycled by injection moulding, pressing, and extrusion. Selected properties of the processed composites were determined: density, viscosity-average molecular weight, impact resistance, and tensile strength. The work done in this paper has demonstrated the benefits and drawbacks of each recycling meth

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9

Almajid, A., K. Friedrich, A. Noll, and L. Gyurova. "Poly-para-phenylene-copolymers (PPP) for extrusion and injection moulding. Part 2: mechanical behaviour." Plastics, Rubber and Composites 42, no. 9 (2013): 401–6. http://dx.doi.org/10.1179/1743289813y.0000000059.

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10

Jayaraman, Krishnan, and Rex Halliwell. "Blending of Natural Fibres and Thermoplastics by Screwless Extrusion." Advanced Materials Research 47-50 (June 2008): 1141–44. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1141.

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Natural fibres, such as sisal, flax and woodfibres, are relatively inexpensive and originate from renewable resources. Thermoplastic polymers, such as polypropylene (PP), high density polyethylene (HDPE) and waste plastics, possess shorter manufacturing cycle times and reprocessability. Natural fibre-reinforced thermoplastic composite materials exhibit favourable values of modulus and strength when the fibres are properly compounded with the polymers. Common methods for manufacturing natural fibre-reinforced thermoplastic composites, injection moulding and extrusion, require pre-compounding of

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11

limeneh, Derseh Yilie, and Kelem Tiessasie Yilma. "Article Review on Vectran-Super Fiber from Thermotropic Crystals of Rigid-Rod Polymer." Journal of Engineering 2021 (April 25, 2021): 1–7. http://dx.doi.org/10.1155/2021/6646148.

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According to the economic and environmental perspective, multifilament Vectran, yarn spun from liquid crystal polymer, is important because of its quite simple processing during spinning in a wide range of injection moulding, extrusion moulding, and melt spinning. Vectran fiber is an aromatic polyester spun from a liquid crystal polymer in a melt extrusion process. This process orients the molecules along the fiber axis, resulting in a high tenacity fiber, and Vectran melts at 330°C. Heat treatment can improve and vary the tensile strength of Vectran fiber. On average, tensile strength for Vec

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12

Tabtiang, A., and R. A. Venables. "Compatibiliser activity and morphology stability during twin-screw extrusion and injection moulding of compatibilised blends." Polymer 43, no. 17 (2002): 4791–801. http://dx.doi.org/10.1016/s0032-3861(02)00289-6.

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13

La Mantia, F. P., F. Cangialosi, U. Pedretti, and A. Roggero. "Extrusion, spinning and injection moulding of blends of poly(ethylene terephthalate) with liquid crystalline polymers." European Polymer Journal 29, no. 5 (1993): 671–77. http://dx.doi.org/10.1016/0014-3057(93)90127-2.

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14

Fernandez, Angel, Manuel Muniesa, Carlos Javierre, and Victor Camanes. "Influence of the Processing Conditions on the Mechanical Properties of PA 6 - Halloysite Nanotubes Nanocomposites for Injection Moulding." Advanced Materials Research 445 (January 2012): 313–18. http://dx.doi.org/10.4028/www.scientific.net/amr.445.313.

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Nowadays polymer based nanocomposites are very interesting to manufacture products of less weight and higher mechanical properties and specific performance depending on the morphology of nanoscaled reinforcement. Most of these potential improvements are focused to the challenges newer products require like HEV (hybrid or electrical vehicles) for example. The development of these new products requires the full characterization of the rheological and mechanical behavior of the materials and the correct preparation of the raw material for further processing. As an example two nanocomposite blends

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15

Sangroniz, Leire, Mercedes Fernández, Pedro Partal, and Antxon Santamaria. "Rheology of Polymer Processing in Spain (1995–2020)." Polymers 13, no. 14 (2021): 2314. http://dx.doi.org/10.3390/polym13142314.

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The contribution of Spanish scientists to the rheology involved in polymer processing during the last 25 years is investigated. It is shown that the performed research covers, at different levels, all industrial polymeric materials: thermoplastics, thermosets, adhesives, biopolymers, composites and nanocomposites, and polymer modified bitumen. Therefore, the rheological behaviour of these materials in processing methods such as extrusion, injection moulding, additive manufacturing, and others is discussed, based on the literature results. A detailed view of the most outstanding achievements, b

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16

Leao, A. L., P. C. Ferrao, and S. F. Souza. "State-of-the-art for extrusion and injection moulding FPC: natural Fibre Plastics Composites in Brazil." International Journal of Materials and Product Technology 36, no. 1/2/3/4 (2009): 134. http://dx.doi.org/10.1504/ijmpt.2009.027826.

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17

Almajid, A., K. Friedrich, A. Noll, and L. Gyurova. "Poly-para-phenylene-copolymers (PPP) for extrusion and injection moulding Part 1 – molecular and rheological differences." Plastics, Rubber and Composites 42, no. 3 (2013): 123–28. http://dx.doi.org/10.1179/1743289812y.0000000045.

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18

Forsgren, Lilian, Abhijit Venkatesh, Florian Rigoulet, et al. "Water-assisted extrusion and injection moulding of composites with surface-grafted cellulose nanocrystals – An upscaling study." Composites Part B: Engineering 208 (March 2021): 108590. http://dx.doi.org/10.1016/j.compositesb.2020.108590.

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19

Pezzoli, Romina, Michael Hopkins Jnr, Guillaume Direur, Noel Gately, John G. Lyons, and Clement L. Higginbotham. "Micro-Injection Moulding of Poly(vinylpyrrolidone-vinyl acetate) Binary and Ternary Amorphous Solid Dispersions." Pharmaceutics 11, no. 5 (2019): 240. http://dx.doi.org/10.3390/pharmaceutics11050240.

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Micro-injection moulding (µIM) was used for the production of enteric tablets of plasticised and unplasticised solid dispersions of poly(vinylpyrrolidone-vinyl acetate) (PVPVA), and the effect of the mechanical and thermal treatment on the properties of the dispersions was investigated. The physical state of the systems showed to be unaltered by the µIM step, maintaining the drug in the amorphous state. The dissolution profile of the tablets showed a slower dissolution rate due to the lower surface to volume ratio compared to the extruded strands. The lack of solubility of the doses in the aci

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20

Sutar, Harekrushna, Himanshu Sekhar Maharana, Chiranjit Dutta, Rabiranjan Murmu, and Sangram Patra. "Strain Rate Effects on Tensile Properties of HDPE-PP Composite Prepared by Extrusion and Injection Moulding Method." Materials Sciences and Applications 10, no. 03 (2019): 205–15. http://dx.doi.org/10.4236/msa.2019.103017.

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21

Cerejo, Fábio, Daniel Gatões, and M. T. Vieira. "Optimization of metallic powder filaments for additive manufacturing extrusion (MEX)." International Journal of Advanced Manufacturing Technology 115, no. 7-8 (2021): 2449–64. http://dx.doi.org/10.1007/s00170-021-07043-0.

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AbstractAdditive manufacturing (AM) of metallic powder particles has been establishing itself as sustainable, whatever the technology selected. Material extrusion (MEX) integrates the ongoing effort to improve AM sustainability, in which low-cost equipment is associated with a decrease of powder waste during manufacturing. MEX has been gaining increasing interest for building 3D functional/structural metallic parts because it incorporates the consolidated knowledge from powder injection moulding/extrusion feedstocks into the AM scope—filament extrusion layer-by-layer. Moreover, MEX as an indir

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22

PATHI, SRIDHAR, and KRISHNAN JAYARAMAN. "EFFECTS OF EXTRUSION ON FIBRE LENGTH IN SISAL FIBRE-REINFORCED POLYPROPYLENE COMPOSITES." International Journal of Modern Physics B 20, no. 25n27 (2006): 4607–12. http://dx.doi.org/10.1142/s0217979206041768.

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Natural fibre reinforced thermoplastic composites find a wide array of applications in the automobile, building and construction industries. These composites are mostly produced by injection moulding or extrusion through properly designed dies. During these production processes, the shear forces exerted by the screw or ram leads to the degradation of the natural fibres. A screwless extruder that minimises fibre degradation and employs a reliable and low technology process has already been developed. However, the fibre degradation caused by the screwless extruder has not been compared with that

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23

Van Den Oever, M. J. A., and H. L. Bos. "Critical Fibre Length and Apparent Interfacial Shear Strength of Single Flax Fibre Polypropylene Composites." Advanced Composites Letters 7, no. 3 (1998): 096369359800700. http://dx.doi.org/10.1177/096369359800700303.

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The stress transfer in, both elementary and technical, single flax fibre polypropylene composites is studied by determining the critical fibre length and the apparent interfacial shear strength. The influence of improved fibre-matrix interaction is reported and the results are compared with data from literature. The study indicates that the critical fibre length for elementary flax fibres is equal to or even higher than the flax fibre lengths found after extrusion and injection moulding processes. Furthermore, addition of maleic anhydridy modified polypropylene to the matrix results in an appa

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24

Dolza, Celia, Eduardo Fages, Eloi Gonga, Jaume Gomez-Caturla, Rafael Balart, and Luis Quiles-Carrillo. "Development and Characterization of Environmentally Friendly Wood Plastic Composites from Biobased Polyethylene and Short Natural Fibers Processed by Injection Moulding." Polymers 13, no. 11 (2021): 1692. http://dx.doi.org/10.3390/polym13111692.

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Environmentally friendly wood plastic composites (WPC) with biobased high density polyethylene (BioHDPE) as the polymer matrix and hemp, flax and jute short fibers as natural reinforcements, were melt-compounded using twin-screw extrusion and shaped into pieces by injection molding. Polyethylene-graft-maleic anhydride (PE-g-MA) was added at two parts per hundred resin to the WPC during the extrusion process in order to reduce the lack in compatibility between the lignocellulosic fibers and the non-polar polymer matrix. The results revealed a remarkable improvement of the mechanical properties

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25

Khan, M. A., J. Ganster, and H. P. Fink. "Natural and Man-Made Cellulose Fiber Reinforced Hybrid Polypropylene Composites: Effect of Fire Retardants." Advanced Materials Research 29-30 (November 2007): 341–44. http://dx.doi.org/10.4028/www.scientific.net/amr.29-30.341.

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Composites were made with jute, cordenka and jute+cordenka by extrusion and injection moulding. The matrix material was Polypropylene (PP) and PP maleic acid anhydride grafted copolymer (MAPP) was used as coupling agents. The mechanical tests were performed. The hybrid composite of jute 25% and cordenka 75% showed the enhanced properties. Three types of fire retardants (15%) Mgnifine (Magnesium hydroxide), Exolite AP-750 (Poly-ammonium phosphate) and Expandable Graphite and their mixtures (1:1) were used in the composites and PP. All the fire retardants and their mixture reduced the mechanical

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26

Mencel, Kinga, and Łukasz Kemnitz. "Influence of heat treatment on the structure and properties of polyamide 6/ halloysite nanocomposites." Archives of Mechanical Technology and Materials 39, no. 1 (2019): 7–10. http://dx.doi.org/10.2478/amtm-2019-0002.

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Abstract The nanocomposites of polyamide 6 (PA6) with halloysite nanotubes (HNT) were prepared by extrusion using co-rotating twin-screw extruder and then the standard test specimens were injected using a screw injection moulding machine. The content of HNT in the nanocomposites was 5 or 10 weight percent. The heat treatment of unmodified PA6 and nanocomposites was carried out in silicone oil in temp. 150±2°C. The samples were annealed for 3 hours and then cooled at a rate of 4 K/min. Differential scanning calorimetry (DSC) causes annealing to increase the crystallinity of the polyamide matrix

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27

Isadounene, Samra, Dalila Hammiche, Amar Boukerrou, Denis Rodrigue, and Hocine Djidjelli. "Accelerated Ageing of Alkali Treated Olive Husk Flour Reinforced Polylactic Acid (PLA) Biocomposites: Physico-Mechanical Properties." Polymers and Polymer Composites 26, no. 3 (2018): 223–32. http://dx.doi.org/10.1177/096739111802600302.

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In this study, olive husk flour was added to poly(lactic acid) (PLA) to produce fully biosourced and biodegradable composites. In particular, untreated and alkali treated particles were used to produce the biocomposites at 20 wt.% via melt extrusion followed by injection moulding. The samples were then subjected to accelerated ageing (UV irradiation and water spray at 50°C) for different amounts of time (120, 240, 360 and 480 h). The results show that accelerated ageing decreased the tensile strength (TS) and Young's modulus (YM) for both untreated and alkali treated biocomposites, but the tre

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28

Manas, David, Ales Mizera, Milan Navratil, et al. "The Electrical, Mechanical and Surface Properties of Thermoplastic Polyester Elastomer Modified by Electron Beta Radiation." Polymers 10, no. 10 (2018): 1057. http://dx.doi.org/10.3390/polym10101057.

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The main advantages of Thermoplastic Polyester Elastomers (TPE-E) are their elastomer properties as well as their ability to be processed in the same way as thermoplastic polymers (e.g., injection moulding, compression moulding and extrusion). However, TPE-Es’ properties, mainly their mechanical properties and thermal characteristics, are not as good as those of elastomers. Because of this TPE-Es are often modified with the aim of improving their properties and extending their range of application. Radiation cross-linking using accelerated electron beams is one of the most effective ways to ch

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29

Sykacek, Eva, Marta Hrabalova, Hannes Frech, and Norbert Mundigler. "Extrusion of five biopolymers reinforced with increasing wood flour concentration on a production machine, injection moulding and mechanical performance." Composites Part A: Applied Science and Manufacturing 40, no. 8 (2009): 1272–82. http://dx.doi.org/10.1016/j.compositesa.2009.05.023.

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30

Sukumaran, J., R. Keresztes, G. Kalácska, H. Almaliki, P. D. Neis, and P. De Baets. "Extruded and Injection Moulded Virgin PA 6/6 as Abrasion Resistant Material." Advances in Tribology 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/1035017.

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Polyamide (PA6/6) is often used as a tribological pair in abrasion prevalent applications such as hinges and sliders. PA6/6 is frequently processed by injection moulding and extrusion process. It is known that these processes influence the polymers mechanical behaviour, but their influence on the polymers wear response has not been studied. Hence the present research attempts to study the influence of different manufacturing processes on tribological behaviour for PA6/6. Wear tests were performed on a pin abrading tester (DIN 50322). Abrasion resistance of both extruded and injection moulded P

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31

Stepczyńska, Magdalena, Alona Pawłowska, Krzysztof Moraczewski, et al. "Evaluation of the Mechanical and Biocidal Properties of Lapacho from Tabebuia Plant as a Biocomposite Material." Materials 14, no. 15 (2021): 4241. http://dx.doi.org/10.3390/ma14154241.

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The aim of this article is to discuss in detail the physicochemical properties of polylactide (PLA) reinforced by cortex fibers, which may cause bacterial mortality and increased biodegradation rates. PLA biocomposites containing cortex Lapacho fibers from Tabebuia (1–10 wt%) were prepared by extrusion and injection moulding processes. The effects of Lapacho on the mechanical and biocidal properties of the biocomposites were studied using tensile and impact tests, dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), thermogravimetry (TG), and the method of evaluating the

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32

Singh, Gurminder, Jean-Michel Missiaen, Didier Bouvard, and Jean-Marc Chaix. "Copper extrusion 3D printing using metal injection moulding feedstock: Analysis of process parameters for green density and surface roughness optimization." Additive Manufacturing 38 (February 2021): 101778. http://dx.doi.org/10.1016/j.addma.2020.101778.

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33

JOLLY, MARC, and KRISHNAN JAYARAMAN. "MANUFACTURING FLAX FIBRE-REINFORCED POLYPROPYLENE COMPOSITES BY HOT-PRESSING." International Journal of Modern Physics B 20, no. 25n27 (2006): 4601–6. http://dx.doi.org/10.1142/s0217979206041756.

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The renewable characteristic of natural fibres, such as flax, and the recyclable nature of thermoplastic polymers, such as polypropylene, provide an attractive eco-friendly quality to the resulting composite materials. Common methods for manufacturing natural fibre-reinforced thermoplastic composites, injection moulding and extrusion, tend to degrade the fibres during processing. Development of a simple manufacturing technique for these composites, that minimises fibre degradation, is the main objective of this study. Flax fibres were conditioned, cut into lengths ranging from 1 mm to 30 mm wi

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34

Haworth, B., D. Chadwick, L. Chen, and YJ Ang. "Thermoplastic composite beam structures from mixtures of recycled HDPE and rubber crumb for acoustic energy absorption." Journal of Thermoplastic Composite Materials 31, no. 1 (2016): 119–42. http://dx.doi.org/10.1177/0892705716681836.

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The use of recycled rubber crumb in the design and production of thermoplastic-rubber composites as sound absorbers can provide solutions to noise pollution and for the recovery of post-consumer materials from both packaging and waste tyres. The work of this study is concerned with the effect of rubber crumb incorporation in high-density polyethylene (HDPE) and also in HDPE glass fibre composites on acoustic, mechanical and physical properties. Recycled HDPE compounds containing variable concentrations of cured rubber crumb particles were prepared by twin screw extrusion. Thermal analysis has

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35

Singh, Gurminder, Jean-Michel Missiaen, Didier Bouvard, and Jean-Marc Chaix. "Copper additive manufacturing using MIM feedstock: adjustment of printing, debinding, and sintering parameters for processing dense and defectless parts." International Journal of Advanced Manufacturing Technology 115, no. 1-2 (2021): 449–62. http://dx.doi.org/10.1007/s00170-021-07188-y.

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AbstractIn the present study, an additive manufacturing process of copper using extrusion 3D printing, solvent and thermal debinding, and sintering was explored. Extrusion 3D printing of metal injection moulding (MIM) feedstock was used to fabricate green body samples. The printing process was performed with optimized parameters to achieve high green density and low surface roughness. To remove water-soluble polymer, the green body was immersed in water for solvent debinding. The interconnected voids formed during solvent debinding were favorable for removing the backbone polymer from the brow

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36

Paiva, M. C., Anissa El Gaied, R. Ben Cheikh, and António M. Cunha. "Interfaces in Alfa Fibre-Polypropylene Matrix Composites." Materials Science Forum 587-588 (June 2008): 227–31. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.227.

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Model composites with Polypropylene (PP) as matrix and alfa fibres (cellulose-based fibres obtained from the esparto grass of the subsaarian dry regions of Tunisia) were prepared for fibre/matrix interfacial characterization studies. The matrices tested were PP and PP combined with PP modified with maleic anhydride (PP-g-MA). The surface of the alfa fibres was treated by air plasma treatment. The adhesion between the untreated and treated fibres and both matrices was studied using the fragmentation test method. Composites with 10% weight of fibres were prepared by melt extrusion and injection

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37

Šafka, Jiří, Michal Ackermann, Jiří Bobek, Martin Seidl, Jiří Habr, and Luboš Bĕhálek. "Use of Composite Materials for FDM 3D Print Technology." Materials Science Forum 862 (August 2016): 174–81. http://dx.doi.org/10.4028/www.scientific.net/msf.862.174.

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This article deals with specific polymer composites modified for the Fused Deposition Modelling (FDM) which is a 3D print technology. These two phase systems involve thermoplastic matrix filled with natural fibres. The crucial demand of this progressive technology is put on the accuracy of the semi-product formed into the filament shape. To reach the smooth production of 3D prototypes the filament should have a constant diameter. In the article, individual steps of the polymer composite pelletization and following pre-processing and processing activities are described. Among these steps the ex

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38

Mizera, Ales, Martin Bednarik, Martin Mizera, Katarina Tomanova, and Martin Mohorko. "Tensile impact behaviour of 3D printed parts on FFF/FDM printer Zortrax M200." MATEC Web of Conferences 210 (2018): 04049. http://dx.doi.org/10.1051/matecconf/201821004049.

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To obtain the deeper knowledge about the mechanical behaviour of 3D printed polymeric materials it is necessary to study the material properties from the beginning to the end. The commonly processed polymeric materials (via injection moulding etc.) are already deeply studied and evaluated, but 3D printed specimens in the various orientation build are not yet. In this study the tensile impact test specimens were fabricated via a desktop material extrusion 3D printer Zortrax M200 processing ABS and HIPS in build orientation XY. The 3D printed tensile impact test specimens were examined to compar

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39

Pashaei, Shahryar, S. Siddaramaiah, Mansouji Avval, and Ahmed Syed. "Thermal degradation kinetics of nylon6/GF/crysnano nanoclay nanocomposites by TGA." Chemical Industry and Chemical Engineering Quarterly 17, no. 2 (2011): 141–51. http://dx.doi.org/10.2298/ciceq101007064p.

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Nylon 6 is extensively used in engineering application because of its unique characteristics such as low price, low viscosity, high toughness, shelf lubricating behaviour and high chemical resistance. The nanocomposites based on PA-6 were prepared by melt extrusion and an adjacent injection moulding process. Mechanical and thermomechanical properties have been investigated by tensile testing and dynamic mechanical analysis. To evaluate the potential of crysnano nanoclays as a new candidate in the class of nanofillers, the properties of the crysnano nanoclays nanocomposites has been compared to

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40

Ziąbka, Magdalena, and Michał Dziadek. "Long-Term Stability of Two Thermoplastic Polymers Modified with Silver Nanoparticles." Nanomaterials 9, no. 1 (2019): 61. http://dx.doi.org/10.3390/nano9010061.

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The aim of this study was to investigate the mechanical properties of polymeric composites prepared via extrusion and injection moulding. Four stable thermoplastic polymers were used as composites matrices (two kinds of polymethyl methacrylate and two kinds of co-polymer acrylonitrile-butadiene-styrene). Silver nanoparticles AgNPs were used as a modifying phase. Mechanical properties of testes materials were determined during the uniaxial stretching. Surface properties such as roughness and contact angle were also evaluated. The materials’ stability was assessed using scanning electron microsc

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41

Ziąbka, Magdalena, and Michał Dziadek. "Surface Properties of Polymeric Composites with Silver Nanoparticles." Fibres and Textiles in Eastern Europe 26, no. 6(132) (2018): 114–19. http://dx.doi.org/10.5604/01.3001.0012.5169.

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The aim of this study was to investigate the surface properties of polymeric composites and the osteoblastic cell behaviour set in direct contact with the biomaterials tested. The surface properties were evaluated before and after 6-month incubation in an in vitro environment. The composite materials were prepared by means of extrusion and injection moulding. Three commercially available thermoplastic polymers (ABS (poly)acrylonitrile butadiene styrene) were used as composite matrices. Antibacterial silver nanoparticles (AgNPs) were added as a modifying phase. Surface properties of the materia

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Czyżewski, Piotr, Marek Bieliński, Dariusz Sykutera, et al. "Secondary use of ABS co-polymer recyclates for the manufacture of structural elements using the FFF technology." Rapid Prototyping Journal 24, no. 9 (2018): 1447–54. http://dx.doi.org/10.1108/rpj-03-2017-0042.

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Purpose The aim of this paper is presenting a new application of material obtained from the acrylonitrile butadiene styrene (ABS) recycling process from electronic equipment housings. Elements of computer monitors were used to prepare re-granulate, which in turn was used to manufacture a filament for fused filament fabrication (FFF) additive manufacturing technology. Design/methodology/approach The geometry of test samples (i.e. dumbbell and bar) was obtained in accordance with the PN-EN standards. Samples made with the FFF technology were used to determine selected mechanical properties and t

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Jorda, Maria, Sergi Montava-Jorda, Rafael Balart, Diego Lascano, Nestor Montanes, and Luis Quiles-Carrillo. "Functionalization of Partially Bio-Based Poly(Ethylene Terephthalate) by Blending with Fully Bio-Based Poly(Amide) 10,10 and a Glycidyl Methacrylate-Based Compatibilizer." Polymers 11, no. 8 (2019): 1331. http://dx.doi.org/10.3390/polym11081331.

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This work shows the potential of binary blends composed of partially bio-based poly(ethyelene terephthalate) (bioPET) and fully bio-based poly(amide) 10,10 (bioPA1010). These blends are manufactured by extrusion and subsequent injection moulding and characterized in terms of mechanical, thermal and thermomechanical properties. To overcome or minimize the immiscibility, a glycidyl methacrylate copolymer, namely poly(styrene-ran-glycidyl methacrylate) (PS-GMA; Xibond™ 920) was used. The addition of 30 wt % bioPA provides increased renewable content up to 50 wt %, but the most interesting aspect

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Boruvka, Martin, Chakaphan Ngaowthong, Luboš Bĕhálek, Jiří Habr, and Petr Lenfeld. "Effect of Dielectric Barrier Discharge Plasma Surface Treatment on the Properties of Pineapple Leaf Fiber Reinforced Poly(Lactic Acid) Biocomposites." Materials Science Forum 862 (August 2016): 156–65. http://dx.doi.org/10.4028/www.scientific.net/msf.862.156.

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Plant source-based stiff fiber reinforced bioplastics based on natural plant derived substances show promise of providing degradation back into the environment when they are no longer needed. These "green" composites have enormous potential to replace materials originated from non-renewable resources and may turn out to be one of the material revolutions of this century. Unlike synthetic composites, "green" composites are renewable, carbon neutral, biodegradable, non-petroleum based, and have low environmental, human health and safety risks. In this paper effect of pineapple leaf fiber (PALF)

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Tábi, Tamás, and Mauro Zarrelli. "Development of Poly(Lactic Acid) Filled with Basalt Fibres and Talc for Engineering Applications." Materials Science Forum 885 (February 2017): 303–8. http://dx.doi.org/10.4028/www.scientific.net/msf.885.303.

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The development of renewable resource based and inherently biodegradable polymers as well as their composites are one of the most important research fields nowadays in polymer science. Poly (Lactic Acid) (PLA), as the most promising biodegradable polymer has the potential to replace even engineering composite materials by reinforcing it with natural plant fibres or mineral fibres like basalt. However, one major drawback is its low heat deflection temperature (HDT, ~55°C) caused by its slow crystallization kinetics and thus low crystallinity of the final product. This feature also retards the u

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Aldas, Miguel, Cristina Pavon, Juan López-Martínez, and Marina Patricia Arrieta. "Pine Resin Derivatives as Sustainable Additives to Improve the Mechanical and Thermal Properties of Injected Moulded Thermoplastic Starch." Applied Sciences 10, no. 7 (2020): 2561. http://dx.doi.org/10.3390/app10072561.

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Fully bio-based materials based on thermoplastic starch (TPS) were developed starting from corn starch plasticized with glycerol. The obtained TPS was further blended with five pine resin derivatives: gum rosin (GR), disproportionated gum rosin (dehydroabietic acid, RD), maleic anhydride modified gum rosin (CM), pentaerythritol ester of gum rosin (LF), and glycerol ester of gum rosin (UG). The TPS–resin blend formulations were processed by melt extrusion and further by injection moulding to simulate the industrial conditions. The obtained materials were characterized in terms of mechanical, th

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ZWICK, K. J., P. S. AYYASWAMY, and I. M. COHEN. "Oscillatory enhancement of the squeezing flow of yield stress fluids: a novel experimental result." Journal of Fluid Mechanics 339 (May 25, 1997): 77–87. http://dx.doi.org/10.1017/s0022112097004977.

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The extrusion of a yield stress fluid from the space between two parallel plates is investigated experimentally. Oscillating the magnitude of the squeezing force about a mean value (F=f[1+αcos(ωt)]) was observed to significantly enhance the flow rate of yield stress fluids, while having no effect on the flow rate of Newtonian fluids. This is a novel result. The enhancement depends on the magnitude of the force, the oscillatory frequency and amplitude, the fluid being squeezed, and the thickness of the fluid layer. Non-dimensional results for the various flow quantities have been presented by u

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Kuzmanović, Maja, Laurens Delva, Ludwig Cardon, and Kim Ragaert. "The Feasibility of Using the MFC Concept to Upcycle Mixed Recycled Plastics." Sustainability 13, no. 2 (2021): 689. http://dx.doi.org/10.3390/su13020689.

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Several mixed recycled plastics, namely, mixed bilayer polypropylene/poly (ethylene terephthalate) (PP/PET) film, mixed polyolefins (MPO) and talc-filled PP were selected for this study and used as matrices for the preparation of microfibrillar composites (MFCs) with PET as reinforcement fibres. MFCs with recycled matrices were successfully prepared by a three-step processing (extrusion—cold drawing—injection moulding), although significant difficulties in processing were observed. Contrary to previous results with virgin PP, no outstanding mechanical properties were achieved; they showed litt

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Pavon, Cristina, Miguel Aldas, Harrison de la Rosa-Ramírez, Juan López-Martínez, and Marina P. Arrieta. "Improvement of PBAT Processability and Mechanical Performance by Blending with Pine Resin Derivatives for Injection Moulding Rigid Packaging with Enhanced Hydrophobicity." Polymers 12, no. 12 (2020): 2891. http://dx.doi.org/10.3390/polym12122891.

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Polybutylene adipate-co-terephthalate (PBAT) is a biodegradable polymer with good features for packaging applications. However, the mechanical performance and high prices of PBAT limit its current usage at the commercial level. To improve the properties and reduce the cost of PBAT, pine resin derivatives, gum rosin (GR) and pentaerythritol ester of GR (UT), were proposed as sustainable additives. For this purpose, PBAT was blended with 5, 10, and 15 wt.% of additives by melt-extrusion followed by injection moulding. The overall performance of the formulations was assessed by tensile test, micr

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Khalil, Yas, Neil Hopkinson, Adam Kowalski, and John Patrick Anthony Fairclough. "Characterisation of UHMWPE Polymer Powder for Laser Sintering." Materials 12, no. 21 (2019): 3496. http://dx.doi.org/10.3390/ma12213496.

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Ultra-high molecular weight polyethylene (UHMWPE) is a thermoplastic semicrystalline polymer that has outstanding mechanical properties, low friction coefficient, excellent wear resistance, and is highly resistant to corrosive chemicals. UHMWPE is found in many applications including artificial joints and filtration. However, UHMWPE parts cannot be produced easily by traditional techniques, such as injection moulding and extrusion because of its very high melt viscosity owing to the extremely long polymer chains. Few attempts were made to process UHMWPE by additive manufacturing, particularly

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