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Journal articles on the topic 'Plastic viscosity'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Rahmadhani Banurea, Nelly L. Ompusunggu, Delima Lailan Sari Nasution, and Tua Raja Simbolon. "Viscosity Characteristics of Renewable Energy Fuels from PP and HDPE Plastic Waste Conversion." Journal of Technomaterial Physics 6, no. 2 (2024): 099–104. http://dx.doi.org/10.32734/jotp.v6i2.14028.

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This study investigates the viscosity characteristics of Renewable Energy Fuel derived from plastic waste, specifically Polypropylene (PP) and High-Density Polyethylene (HDPE). The plastics were subjected to pyrolysis using a plastic waste conversion technology machine at temperatures of 250°C to 400°C. Compared to diesel, the average viscosity of pyrolyzed PP oil is approximately 4.25 cSt, while for pyrolyzed HDPE oil, it is about 3.3725 cSt. Compared to gasoline, the average viscosity values for the oils are 0.603 cSt for PP and 0.5965 cSt for HDPE. These results indicate that both oils have

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2

Anggara, Mietra, Ajie Prana Mesa, and Bernadus Crisanto Putra Mbulu. "ANALISIS PROPERTI BAHAN BAKAR MINYAK DARI PLASTIK LDPE (LOW DENSITY POLYETHYLENE) DAN PET (POLYETHYLENE TEREPHTHALATE) MENGGUNAKAN PROSES PIROLISIS." Jurnal Energi dan Teknologi Manufaktur (JETM) 5, no. 02 (2022): 1–10. http://dx.doi.org/10.33795/jetm.v5i02.138.

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Plastic waste is an environmental problem that is hotly discussed in the era of globalization. Almost all people are starting to realize the dangers caused by environmental damage. The purpose of this study was to determine the properties of fuel oil resulting from the pyrolysis process for LDPE (Low Density Polyethylene) and PET (Polyethylene Terephthalate) plastics. The research method used is through experiments with the Pyrolysis process. In managing LDPE and PET plastic waste, namely the pyrolysis technique which can produce fuel oil. The types of plastic used in this study were LDPE plas

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3

Joy, Ehimwenma Ossai Eghe Amenze Oyedoh Vera Ogheneovo Magbuwe Messiah Innocent Atapia. "Optimization of the Formulation of Drilling Mud using Box – Behnken Design." Journal of Energy Technology and Environment 7, no. 2 (2025): 166–73. https://doi.org/10.5281/zenodo.15609815.

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<em>This study examines the formulation and optimization of drilling mud utilizing locally sourced materials, specifically cassava starch, corn cob ash, and sodium hydroxide (NaOH), as economical and sustainable alternatives. The clay was evaluated, formulated, and optimized using Response Surface Methodology, specifically employing the Box-Behnken Design to enhance critical rheological parameters, including apparent viscosity and plastic viscosity. Experimental results demonstrate that these locally sourced additives enhance drilling fluid performance, providing competitive rheological charac

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Techawinyutham, Laongdaw, and Wiroj Techawinyutham. "Effect of Solvent Cleaning on Thermo-Mechanical and Rheological Properties of Plastic Wastes from Municipal Solid Waste (MSW)." Key Engineering Materials 856 (August 2020): 230–36. http://dx.doi.org/10.4028/www.scientific.net/kem.856.230.

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The plastics from municipal solid waste (MSW) were modified to improve cleanness for adding value. The stir and sonication were performed as cleaning processes. Xylene, tetrachloroethylene, chloroform, acetone and toluene were used as solvent cleaning. The most suitable cleaning process was sonication method with cleaning time of 5 min and the appropriate solvent was xylene for washing the plastic wastes for further study in terms of thermo-mechanical and rheological properties. The cleaning process was successful as evidence in thermogravimetric analysis (TGA) results. The properties of new p

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5

Ali, Douaa Hussein, and Muhannad A. R. Mohammed. "Studying the Rheological Properties of Non-Newtonian Fluids Under the Addition of Different Chemical Additives." Al-Nahrain Journal for Engineering Sciences 23, no. 1 (2020): 68–80. http://dx.doi.org/10.29194/njes.23010068.

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This research study the rheological properties ( plastic viscosity, yield point and apparent viscosity) of non-Newtonian fluids under the addition of different chemical additives with different concentrations, such as (xanthan gum (xc-polymer) , carboxy methyl cellulose ( high and low viscosity ) ,polyacrylamide, polyvinyl alcohol, starch, quebracho, chrome lignosulfonate, and sodium chloride (NaCl). Fann viscometer model 800 with 8-speeds was used to measure the rheological properties of these samples, that have already been prepared. All samples were subjected to Bingham plastic model. It wa

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6

Xu, Fang, Ming Kai Zhou, and Jian Ping Chen. "Research on the Rheology of Polymer Latex Modified Cement Paste Containing Mineral Admixtures." Key Engineering Materials 501 (January 2012): 544–48. http://dx.doi.org/10.4028/www.scientific.net/kem.501.544.

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The rheology of styrene-butadiene rubber (SBR) polymer latex modified cement paste (SMCP) was studied in this paper. The effects of mineral admixtures (MAs) on the rheological performance of SMCP were studied using the Brookfield R/S Plus rheometer. The results indicate that the plastic viscosity of SMCP with different shear rate all decreases as the test time extends. As the shear rate increases, the plastic viscosity reduces significantly. The rheology of SMCP improves as the SBR latex content gradually increases. With increasing quantities of fly ash (FA), the yield stress of SMCP gradually

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7

Hong, Zhang Lian, Hidehiro Yoshida, and Taketo Sakuma. "High Temperature Creep Strength of Si₃N₄-Y₂Si₂O₇ Ceramics by Stress Relaxation Based on a New Interpretation Model." Key Engineering Materials 336-338 (April 2007): 1420–23. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1420.

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A new interpretation model, instead of classical Kohlrausch-Williams-Watt (KWW) equation, was applied to interpret stress relaxation behavior of Si3N4-Y2Si2O7 ceramics. Results revealed that the new model could obtain reasonable relaxation plastic viscosity and viscoelastic viscosity under testing temperature range of 1300°C~1575°C. From the plotted curve of viscosity vs 1/RT, an activation energy change occurred around 1500°C was found for both plastic viscosity and viscoelastic viscosity curves. This change, which indicated the microstructure change, was in good agreement with the significan

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8

Schall, Christoph, and Volker Schöppner. "Material Characterization of Polypropylene and Polystyrene Regarding Molecular Degradation Behavior." Materials 16, no. 17 (2023): 5891. http://dx.doi.org/10.3390/ma16175891.

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During the processing of thermoplastics, polymers are subjected to high stress. As a result of this stress, the polymer chains break, leading to a lower molar mass. This further leads to a lower viscosity of the plastic melt and, eventually, to poorer mechanical properties of the manufactured plastic product. Especially in the context of recycling plastics, this poses a challenge to process technology and product properties. This work aims is to provide a prediction of the material degradation under known stress, so that, for example, a process design that is gentle on the material can be carr

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9

Dong, Rui, Aodong Gao, Ying Zhu, Bin Xu, Jierong Du, and Shujiang Ping. "The Development of a New Thermoplastic Elastomer (TPE)-Modified Asphalt." Buildings 13, no. 6 (2023): 1451. http://dx.doi.org/10.3390/buildings13061451.

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The use of (recycled) plastics and (waste) vulcanized rubber powder is the main polymer of raw materials, and composite organic additives are selected to fully combine with asphalt components. The physical and chemical reactions between different components are completed in dynamic mixing, establishing a morphology structure similar to thermoplastic elastomers (TPEs), and a thermoplastic highly asphaltized alloy material. TPE-modified asphalt not only significantly improves the high-temperature stability of the base asphalt, but also has the social and economic value of rational utilization of

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10

Guan, Kai Kai, Fang Yi Li, Gang Li, Peng Liu, and Jian Feng Li. "Rheological Properties of Slurry of Foam Cushion Packaging Based on Fiber and Starch." Advanced Materials Research 816-817 (September 2013): 1274–77. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.1274.

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The rheological behavior of slurry of foam cushion packaging based on fiber and starch was analyzed using digital viscosity meter. Meanwhile the response relationship of viscosity to time, shear rate to shear stress, and viscosity to temperature were also measured. The results showed that the slurry is a kind of non-newtonian fluid with the character of shear thinning. With the increasing of shear rate, apparent viscosity of system keeps in decreasing till the steady state finally. With temperature rising, plastic viscosity and yield strength of slurry will be smaller susceptibly. At last, Cas

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11

Hussein Ali, Douaa, and Muhannad A.R. Mohammed. "Studying the Rheological Properties of Non-Newtonian Fluids under the Effect of temperature Using Different Chemical Additives." Iraqi Journal of Chemical and Petroleum Engineering 21, no. 2 (2020): 47–56. http://dx.doi.org/10.31699/ijcpe.2020.2.6.

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This research studies the rheological properties ( plastic viscosity, yield point and apparent viscosity) of Non-Newtonian fluids under the effect of temperature using different chemical additives, such as (xanthan gum (xc-polymer), carboxyl methyl cellulose ( High and low viscosity ) ,polyacrylamide, polyvinyl alcohol, starch, Quebracho and Chrome Lignosulfonate). The samples were prepared by mixing 22.5g of bentonite with 350 ml of water and adding the additives in four different concentrations (3, 6, 9, 13) g by using Hamilton Beach mixer. The rheological properties of prepared samples were

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12

Afriyanto, Birahmatika, Eva Wahyu Indriyati, and Probo Hardini. "PENGARUH LIMBAH PLASTIK LOW DENSITY POLYETHYLENE TERHADAP KARAKTERISTIK DASAR ASPAL." Jurnal Transportasi 19, no. 1 (2019): 59–66. http://dx.doi.org/10.26593/jt.v19i1.3263.59-66.

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Abstract One way to reduce damage of the pavement structure is to improve the quality of asphalt used. In an effort to improve the quality of the asphalt, additives are added, such as polymers. This study aims to determine the basic characteristics of Low Density Polyethylene Plastic modified asphalt, which includes penetration, softening point, flash and fire point, specific gravity, ductility, viscosity. In addition, it will be determined the maximum content of Low Density Polyethylene Plastic which produces modified asphalt that meets the standards of the Directorate General of Highways. Th

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13

Dhakal, Manish, Shacheendra Kishor Labh, Lucky Pandey, et al. "Green and Sustainable Pyrolysis: Conversion of Plastic Solid Waste into Liquid Fuel." Technical Journal 3, no. 1 (2023): 45–49. http://dx.doi.org/10.3126/tj.v3i1.61953.

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Excessive use of fossil fuel like gasoline and increasing number of automobiles has led to extensive scientific research in the field of alternative fuel sources. Also due to the vast range of uses of plastics across many industries, Plastic Waste in landfills and global production of plastic increased over time. The conversion of Waste plastic into liquid and gaseous fuels and value-added chemicals by pyrolysis followed by fractional distillation is explained as a practical and sustainable solution for recycling plastics because the calorific value of plastic is almost identical to that of hy

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14

Yang, Yong Gang, and Fu Ping Liu. "Study on the Relationship between Plastic Viscosity and Tack Value of Picking Liquid." Advanced Materials Research 314-316 (August 2011): 1342–45. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.1342.

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In order to find out the relation between viscosity and adhesiveness (tack value), different rate printing varnish was respectively added to a lemon yellow ink for manufacturing several ink samples, and then their viscosity were tested. In addition, plastic viscosities of the 13 picking liquids were measured, and their tack values under 9 separation velocities were also tested. The study result showed that the picking liquid having high viscosity may be have low tack value, but printing varnish can decrease simultaneously plastic viscosity and tack value of one picking liquid.

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15

An, Wen, Yong Gang Yang, and Yan Zhao. "Research on the Relationships between Plastic Viscosity of Picking Liquids and its Tack Value." Advanced Materials Research 941-944 (June 2014): 1528–31. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1528.

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In order to find out the relation between viscosity and adhesiveness (tack value), different rate printing varnish was respectively added to a lemon yellow ink for manufacturing several ink samples, and then their viscosity were tested. In addition, plastic viscosities of the 13 picking liquids were measured, and their tack values under 9 separation velocities were also tested. The study result showed that the picking liquid having high viscosity may be have low tack value, but printing varnish can decrease simultaneously plastic viscosity and tack value of one picking liquid.

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16

Tsampanakis, Ioannis, and Alvin Orbaek White. "The Mechanics of Forming Ideal Polymer–Solvent Combinations for Open-Loop Chemical Recycling of Solvents and Plastics." Polymers 14, no. 1 (2021): 112. http://dx.doi.org/10.3390/polym14010112.

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The inherent value and use of hydrocarbons from waste plastics and solvents can be extended through open-loop chemical recycling, as this process converts plastic to a range of non-plastic materials. This process is enhanced by first creating plastic–solvent combinations from multiple sources, which then are streamlined through a single process stream. We report on the relevant mechanics for streamlining industrially relevant polymers such as polystyrene (PS), polypropylene (PP), high-density polyethylene (HDPE), and acrylonitrile butadiene styrene (ABS) into chemical slurries mixed with vario

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17

Sikdar, Soumya, Arpith Siddaiah, and Pradeep L. Menezes. "Conversion of Waste Plastic to Oils for Tribological Applications." Lubricants 8, no. 8 (2020): 78. http://dx.doi.org/10.3390/lubricants8080078.

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Plastics are widely used owing to their light weight, easy production, and low cost. Even though plastics find application in different fields of industries and households, they do not degrade easily. If plastics are not disposed of appropriately, it has been shown that they cause widespread environmental pollution, which poses risks to human health. Recycling waste plastics has been an alternative to mitigating plastic pollution, which usually requires high labour costs and produces contaminated water during processing. If plastic recycling will contribute to the development of tribological p

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18

Aierken, Ailifeila, Shilin Luo, Jianqing Jiang, et al. "Experimental and Numerical Studies on Flowing Properties of Grouting Mortar Based on the Modified MPS Method." Geofluids 2022 (June 22, 2022): 1–9. http://dx.doi.org/10.1155/2022/4042418.

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Grouting mortar has widespread application in engineering because of the advantages of good durability, low cost, and environmental friendliness. To study the flowing properties of grouting mortar, laboratory minislump tests taking different rheological parameters of grouting mortar into consideration were conducted to obtain the flow time and flow pattern of grouting mortar. A modified MPS method (moving-particle semi-implicit method) introduced two sections of Bingham rheological, and segregation was proposed. The effects of the plastic viscosity on the flow state of mortar were studied, and

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19

Cakiroglu, Celal, Gebrail Bekdaş, Sanghun Kim, and Zong Woo Geem. "Explainable Ensemble Learning Models for the Rheological Properties of Self-Compacting Concrete." Sustainability 14, no. 21 (2022): 14640. http://dx.doi.org/10.3390/su142114640.

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Self-compacting concrete (SCC) has been developed as a type of concrete capable of filling narrow gaps in highly reinforced areas of a mold without internal or external vibration. Bleeding and segregation in SCC can be prevented by the addition of superplasticizers. Due to these favorable properties, SCC has been adopted worldwide. The workability of SCC is closely related to its yield stress and plastic viscosity levels. Therefore, the accurate prediction of yield stress and plastic viscosity of SCC has certain advantages. Predictions of the shear stress and plastic viscosity of SCC is presen

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20

Yu, Mao Jie, Bei Qing Huang, and Xian Fu Wei. "Influence of Resin on the Performance of Water-Based Plastic Gravure Ink." Advanced Materials Research 287-290 (July 2011): 1680–84. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1680.

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Resin as an important part of water-based plastic gravure ink which directly affect the performance of ink. In order to improve the performance of water-based plastic gravure ink，fixing other components and changing the type of resin to prepare ink. Viscosity of ink was measured. Proof the ink on PET film and the effect of resin on water-based plastic gravure ink was inspected through measuring adhesion, wear resistance and glossiness of the ink. The results indicate that water-based plastic gravure ink was prepared by acrylic resin S-2661D has low viscosity, high glossiness; water-based plast

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21

Khair, H., B. Listiany, and R. Utami. "Pyrolysis of polypropylene plastic waste: An analysis of oil quantity, density, viscosity, and calorific value." IOP Conference Series: Earth and Environmental Science 1268, no. 1 (2023): 012056. http://dx.doi.org/10.1088/1755-1315/1268/1/012056.

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Abstract Owing to the inability of the material to biodegrade, the handling of plastic waste presents a considerable challenge. Pyrolysis is a plastic waste management method that solves the problem of plastic waste volume through chemical recycling. This study aims to assess the quantity and quality of the density, viscosity, and calorific value of oil produced from the pyrolysis of polypropylene (PP) plastic and compare it to commercial oils. This research used 15 kg of PP plastic waste. The pyrolysis process was conducted at temperatures ranging from to 250-350°C. The amount of extracted PP

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22

Wang, Ju Wei. "Fiberboard with PVC Coated Plastic Research." Advanced Materials Research 803 (September 2013): 205–8. http://dx.doi.org/10.4028/www.scientific.net/amr.803.205.

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PVC film facing material has the real wood grain feeling, high wear resistance strength, soft gloss and widely used in wooden furniture surface decoration [. But PVC film and plank have low degree of adhesive; water will open in bubble shortcomings. And butyl acrylic, vinyl acetate copolymer emulsion and have good adhesive sex and peel strength, and it has better cohesion[.This article describes the modified acrylic adhesive vinyl acetate synthesis methods and performance characteristics that affect the performance of some of the major factors, namely raw material ratio, the amount of initiato

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23

Muratova, Samal, Boranbay Ratov, Volodymyr Khomenko, Oleksandr Pashchenko, and Oleksandr Kamyshatskyi. "Improvement of the methodology for measuring plastic viscosity and dynamic shear stress of drilling fluids." IOP Conference Series: Earth and Environmental Science 1491, no. 1 (2025): 012026. https://doi.org/10.1088/1755-1315/1491/1/012026.

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Abstract This article focuses on developing a methodology for measuring the rheological properties of drilling fluids using the Marsh funnel, an essential tool for analyzing drilling fluids. The primary objective is to determine plastic viscosity and dynamic shear stress based on apparent viscosity measurements, facilitating the assessment of fluid behavior under mechanical loads. The study systematically analyzes scientific and technical literature on determining the rheological properties of fluids, particularly drilling fluids. A detailed analysis of the flow process in the Marsh funnel exa

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Ghodke, Praveen Kumar, Amit Kumar Sharma, Krishna Moorthy, Wei-Hsin Chen, Alok Patel, and Leonidas Matsakas. "Experimental Investigation on Pyrolysis of Domestic Plastic Wastes for Fuel Grade Hydrocarbons." Processes 11, no. 1 (2022): 71. http://dx.doi.org/10.3390/pr11010071.

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Plastics usage is rising daily because of increased population, modernization, and industrialization, which produces a lot of plastic garbage. Due to their various chemical structures, long chain polymeric compositions, and thermal/decomposition behavior, it is challenging to recycle these plastic wastes into hydrocarbon fuels. In the current work, domestic plastic waste was pyrolyzed at 473 to 973 K in a fixed bed reactor and compared with the three virgin plastics LDPE (low-density polyethylene), HDPE (high-density polyethylene), and PP (polypropylene), as well as a mixture of the three (vir

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Alnahhal, Mohammed Fouad, Taehwan Kim, and Ailar Hajimohammadi. "Evolution of flow properties, plastic viscosity, and yield stress of alkali-activated fly ash/slag pastes." RILEM Technical Letters 5 (December 29, 2020): 141–49. http://dx.doi.org/10.21809/rilemtechlett.2020.123.

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The development of cementless concrete is attracting increasing attention in practice and research to reduce both greenhouse gas emissions and energy consumption of concrete. Alkali-activated materials (AAMs) are one of the viable alternatives to replace Portland cement due to their lower CO2 emissions. This study investigated the evolution of rheological parameters of alkali-activated fly ash/slag pastes as a function of time. Flowability and rheological measurements were carried out to determine the fluidity, plastic viscosity, and yield stress at different time intervals. The effects of the

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Liu, Bo, Yaoping Zhang, Xionggang Zou, Chaomei Zhang, and Yingjie Chang. "Coupled Effects of Time and Temperature on the Rheological and Pipe Flow Properties of Cemented Paste Backfill." Minerals 14, no. 12 (2024): 1221. https://doi.org/10.3390/min14121221.

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As mineral resources at shallow depths become increasingly depleted, the development of these resources is progressively shifting to greater depths. This transition presents challenges for the pipeline transport of cement paste backfill (CPB), particularly in terms of long-distance transport and elevated temperatures. To investigate this phenomenon, we conducted rheological tests, developed a resistance model that accounts for both time and temperature, and performed numerical simulations. The results show that the rheological parameters of CPB exhibit a gradual decline as the flow progresses.

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Meng, Qingen, Juan He, Congmi Cheng, and Xiaofen Zhu. "Effect of polycarboxylate superplasticizer on fluidity and rheology of cement slurry containing silica fume." E3S Web of Conferences 237 (2021): 03008. http://dx.doi.org/10.1051/e3sconf/202123703008.

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The effect of polycarboxylate superplasticizer on the fluidity and rheology of cement - silica fume - water paste was investigated. The changes of dispersion degree, yield stress and plastic viscosity of paste with different superplasticizer content were analyzed. The results show that the rheological properties of paste with different superplasticizer content conform to Herschel-Bulkley model. The shear thinning of the slurry is manifested as a typical yielding pseudoplastic fluid characteristic. When the content of superplasticizer is less than 1.0%, the plastic viscosity and yield stress de

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28

Benaicha, Mouhcine, Yves Burtschell, Adil H. Alaoui, and Khaled Elharrouni. "Theoretical calculation of self-compacting concrete plastic viscosity." Structural Concrete 18, no. 5 (2017): 710–19. http://dx.doi.org/10.1002/suco.201600064.

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Abdel-Goad, Mahmoud. "Waste Plastic-Modified Bitumen: Rheological Study." Journal of Engineering Research [TJER] 6, no. 1 (2009): 76. http://dx.doi.org/10.24200/tjer.vol6iss1pp76-81.

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Bitumen blends were prepared for road applications by the introduction of 9% of waste Polyethylene by weight (9 wt%). The relaxation stress, relaxation and retardation spectrum and viscosity of bitumen blends were studied at different temperatures and compared to those of the original pure bitumen. These properties were tested using an ARESRheometer (Rheometric Scientific, Co.) equipment. The measurements were performed in the dynamic mode, plate-plate geometry of 8 mm diameter over the temperature range from -10 to 60°C and angular frequency (ω) varied from 10-1 to 102 radian/s. The relaxatio

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Locat, Jacques, and Denis Demers. "Viscosity, yield stress, remolded strength, and liquidity index relationships for sensitive clays." Canadian Geotechnical Journal 25, no. 4 (1988): 799–806. http://dx.doi.org/10.1139/t88-088.

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The rheological behavior of some sensitive clays has shown that there are positive relationships between plastic viscosity, yield stress, remolded shear strength, and liquidity index. Based on the various correlations, remolded strength values can be predicted for soils with a liquidity index as high as 6. For a liquidity index varying from 2 to 5, the remolded undrained shear strength and plastic viscosity vary from about 90 to 5 Pa and from 200 to 7 mPa∙s respectively. It has been observed that most sensitive clays behave either as a Bingham or a Casson fluid, the latter behavior being relat

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Takehisa, Daiki, Naoki Takahashi, Shin Ichiro Hashimoto, and Shigeyuki Date. "Influence of Replacement Rate of Fine Aggregate by Blast Furnace Slag Sand on Fresh Properties of Mortar." Key Engineering Materials 777 (August 2018): 483–90. http://dx.doi.org/10.4028/www.scientific.net/kem.777.483.

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For enlarging and promoting usage of blast furnace slag sand and improving construction performance of concrete with it, the behavior of the mortar under both static and dynamic, using vibrator, conditions were confirmed from the viewpoint of plastic viscosity, filling property and bleeding rate. As the results, within the scope of this experiment, by investigating the mixing ratio at which the plastic viscosity changes from the vibration plasticity viscosity obtained by the feather penetration type viscosity measurement test, it was considered that the appropriate fine aggregate mixing ratio

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Pieter, T. Yan Pieter Sianipar, and H. Halimatuddahliana. "The Effect of Pyrolysis Temperature and Amount of Zeolite Catalyst on Yield, Viscosity, and Cetane Index of Diesel Oil from LDPE Plastic Waste in The Process of Making Environmentally Friendly Diesel." Golden Ratio of Social Science and Education 5, no. 1 (2025): 80–94. https://doi.org/10.52970/grsse.v5i1.1089.

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Indonesia's rapid population growth and industrial development have increased fuel oil consumption, mainly diesel fuel. The high diesel fuel consumption is feared to cause the depletion of diesel fuel reserves. To overcome this problem, it is time for Indonesia to examine the use of alternative energy sources to replace diesel fuel. The raw material for alternative energy sources is plastic waste. The amount of plastic waste in Indonesia is relatively abundant, so it has potential when utilized as an alternative energy source through pyrolysis. This study aimed to analyze the effect of pyrolys

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Mansah, Julastri, Idham Khalid, Novrianti Novrianti, et al. "ANALISIS CARBOXY METHYL CELLULOSE (CMC) ADDITIVE CMC BIJI ASAM JAWA TERHADAP FILTRATION LOSS DAN RHEOLOGY LUMPUR PEMBORAN." Jurnal Ilmiah Multidisiplin 3, no. 04 (2024): 103–11. http://dx.doi.org/10.56127/jukim.v3i04.1517.

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Filtration loss adalah air yang terkandung didalam lumpur pemboran masuk ke dalam formasi. Filtration sangat mempengaruhi kinerja pemboran pada sumur minyak dan gas. Additive yang di pakai untuk mengatasi filtration loss adalah carboxy methil cellulose (CMC). Additive ini merupakan jenis kimia yang cukup banyak digunakan, Maka dilakukan penelitian untuk mendapatkan bahan additive baru yaitu salah satunya CMC dari biji asam jawa dengan kandungan polisakarida 50% - 60%. Rheology lumpur pemboran yang harus dikontrol dalam suatu operasi pemboran baik migas atau pun panas bumi adalah viscosity, pla

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Wang, Lin, Xiying Tian, Yuefan Pan, et al. "The Properties of Self-Compacting Ultra-High Performance Concrete with Different Types of Mineral Admixtures." Coatings 15, no. 5 (2025): 591. https://doi.org/10.3390/coatings15050591.

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This paper investigates the effects of silica fume, cenosphere, fly ash, and ground slag powder on the rheological properties and mechanical strengths of self-compacting ultra-high performance concrete (UHPC). The mass ratio of each mineral admixture varies from 0% to 15%, while the water-binder ratios are set at 0.18, 0.20, and 0.22. The slump flow and plastic viscosity of fresh UHPC are measured, and the corresponding flexural and compressive strengths of UHPC cured for 3 days and 28 days are determined. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) are employed to elucidate

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Chandler, W. L., and G. Schmer. "Evaluation of a new dynamic viscometer for measuring the viscosity of whole blood and plasma." Clinical Chemistry 32, no. 3 (1986): 505–7. http://dx.doi.org/10.1093/clinchem/32.3.505.

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Abstract We evaluated a new type of dynamic viscometer, the Sonoclot Coagulation Analyzer, for use in measuring the viscosity of whole-blood and plasma. Such information can be useful in monitoring patients with hyperviscosity syndromes, e.g., from multiple myeloma. A vibrating Teflon or plastic probe continuously measures dynamic viscosity. The instrument can be calibrated to measure a range of viscosities from 0.69 to 23 cP (mN X s X m-2) or more. The coefficient of variation at 0.69 cP was 3-4% for measurements with the Teflon probe, 7-9% with the plastic probe. Viscosity measured at 37 deg

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Ida Bagus Alit and I Made Mara. "Characteristics physical and chemical properties of fuel from plastic waste for mineral water glasses." World Journal of Advanced Engineering Technology and Sciences 11, no. 1 (2024): 268–73. http://dx.doi.org/10.30574/wjaets.2024.11.1.0050.

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This research aims to convert plastic waste, especially plastic cups for packaging mineral water, into fuel oil through a pyrolysis process. The experimental method used is with the following stages: first, 1kg of plastic raw material is chopped before being put into a pyrolysis tube. Next, the tube is heated to change the plastic into a liquid form which then evaporates. The hot steam from this plastic is channeled to a heat exchanger to be condensed. Cooling is carried out using water flowing in the opposite direction to the direction of the steam. The results of plastic vapor condensation a

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Sunil, Kumar, Mehta Neeraj, and Sethi Ankit. "An Overview of Plastic Waste for Flexible Pavements." Journal of Sustainable Construction Engineering and Project Management 2, no. 3 (2019): 1–5. https://doi.org/10.5281/zenodo.3545811.

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Plastic is a major concern from a long time. But today this is solved by using plastic waste practically. Plastic becomes a part of life in each and every activity. But it is Non bio-degradable so it produces Pollution Globally. Now using some amount of plastic waste with bitumen has provided a way to reduce the plastic pollution. As it takes Thousands of years for degradation. Sometimes we can reduce the plastic by ban on it. But this is not a Solution As it cannot be banned completely. But reuse of plastic is only a Solution. Generally single use plastics are of major concern.

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Mbasha, Willy, Rainer Haldenwang, and Irina Masalova. "The influence of sulfate availability on rheology of fresh cement paste." Applied Rheology 30, no. 1 (2020): 54–63. http://dx.doi.org/10.1515/arh-2020-0106.

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AbstractNatural gypsum can degenerate into hemihydrate during cement clinker grinding which changes the physical and chemical properties of cement hydration, affecting therefore the fresh and hardened properties of cement based materials. Cement systems containing a constant total amount of calcium sulfate (4%) with relative proportions of hemihydrate and natural gypsum were considered. Rheological measurements were executed on an Anton Paar MCR51 rheometer to evaluate the flow properties of cement pastes. Results show that, the yield stress and the plastic viscosity of cement pastes were affe

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Bajić, Danica, Ivan Dimitrijević, and Slavica Terzić. "Influence of differently cured polymeric binders on rheology properties of plastic explosives." Scientific Technical Review 72, no. 2 (2022): 38–43. http://dx.doi.org/10.5937/str2202038b.

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Plastic Explosive Compositions consisting of HMX and liquid polyurethane binder were prepared in order to determine influence of differently cured polymeric binders on rheological properties of plastic explosives. First, a set of polymeric binders was prepared in polyaddition reaction between HTPB and IPDI, with varying NCO:OH ratio and examined through the standard and non-standard rheological tests on a dynamic rotational rheometer. Viscosity curves of polymeric binders show viscosity increase with NCO:OH ratio increase, as expected. Amplitude sweep tests reveal liquid-like structure of PEs,

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Ren, Zhong, Xing Yuan Huang, and Zhi Hua Xiong. "Numerical Studies for the Effects of Viscoelastic Constitutive Parameters on the Extrudate Swell of Plastic Micro-Tubes." Materials Science Forum 932 (September 2018): 19–23. http://dx.doi.org/10.4028/www.scientific.net/msf.932.19.

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The effects of four difference viscoelastic constitutive parameters, i.e., viscosity, relaxation time, ε and ξ on the extrudate swell of plastic micro-tubes were studied by using the numerical method. Numerical results show that the extrudate swell of plastic micro-tube increases with the increase of the relaxation time, but decreases with the increase of ε and ξ. In addition, the extrudate swell ratio of plastic micro-tube is not changed with the increase of the viscosity of melt. To ascertain the effect of four different viscoelastic constitutive parameters on the extrudate swell of plastic

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Feng, Nai Qian, and Hao Wen Ye. "Technical Features and Countermeasures of High Strength and High Performance Concrete." Key Engineering Materials 405-406 (January 2009): 7–13. http://dx.doi.org/10.4028/www.scientific.net/kem.405-406.7.

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In this paper, the technical problems are discussed, and a couple of countermeasures are proposed. To solve the problems of HPC, such as autogenous-shrinkage caused cracking, cracking caused by swelling, and high plastic viscosity, the key parameters are water content and cement content in mix proportion. Coarse aggregate should comprise of two grades. Such HPC can inhibit autogenous-shrinkage caused cracking, cracking caused by swelling, and lower plastic viscosity and improve pumping performance. Incorporate polypropylene fiber can prevent explosive spalling under high temperature.

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Marwani, Marwani, and Muhammad David Trifarizy. "THE PYROLYSIS OF HIGH-DENSITY POLYETHYLENE (HDPE) AND POLYPROPYLENE (PP) PLASTIC WASTE BLEND." Indonesian Journal of Engineering and Science 5, no. 1 (2024): 029–34. http://dx.doi.org/10.51630/ijes.v5i1.104.

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Plastic waste is a growing problem that hurts the environment. The pyrolysis method converts plastic waste into alternative fuels to address this issue. This study aimed to investigate the impact of temperature on the characteristics of pyrolysis oil produced from a combination of High-Density Polyethylene (HDPE) and PolyPropylene (PP) plastic waste. The study focused on the resulting pyrolysis oil's volume, density, viscosity, and calorific value. The study results showed that the highest pyrolysis oil yield was obtained at 450ºC, with a volume of 350 ml. The density of the pyrolysis oil rang

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Wang, Qian, Linchun Zhang, and Ailian Zhang. "The Performance of Sulfoaluminate Cement Mortar with Secondary Aluminum Dross." Coatings 15, no. 4 (2025): 459. https://doi.org/10.3390/coatings15040459.

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This paper endeavors to explore the impact of secondary aluminum dross (SAD) on the characteristics of sulfoaluminate cement mortar. Measurements were taken for the mortar’s slump flow, plastic viscosity, initial setting time, and drying shrinkage rate (DR). Additionally, the flexural, compressive, and bonding strengths were evaluated. The leached concentrations of chromium (Cr) and zinc (Zn) in the specimens were determined. Furthermore, the carbonation depth (Dc) and chloride ion migration coefficient (CMC) were calculated. Lastly, scanning electron microscope energy spectrum analysis (SEM-E

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Liang, Wen Yan, Zhen Qing Wang, Bo Zhou, and Hong Qing Lv. "The Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear." Key Engineering Materials 385-387 (July 2008): 321–24. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.321.

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Under the assumption that the viscosity coefficient is in inverse proportion to the power law of the equivalent plastic strain rate. The friction touch effect between viscosity and crack-tip surfaces is considered, the asymptotic solution is established for elastic-viscoplastic field at the mixed-mode quasi static crack-tip under compression and shear. The numerical solution at crack-tip without stress and stain gap is obtained. The variation of numerical solution is discussed for the mixed-mode under compression and shear according to each parameter. Through numerical results and analysis for

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Guo, Yong, Shiliu Zhu, Yuxia Chen, and Dagang Li. "Thermal Properties of Wood-Plastic Composites with Different Compositions." Materials 12, no. 6 (2019): 881. http://dx.doi.org/10.3390/ma12060881.

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The thermal performance of wood–plastic composites (WPCs) with different fiber, different fiber contents, and different lubricants were investigated in this paper. The results show that the thermal degradation temperature, melting temperature, crystallization temperature, crystallinity, and viscosity of WPCs with wood fiber were slightly higher than those of WPCs with floor sanding powder and rice husk. As the wood fiber content increased, the melting temperature and crystallinity of WPCs decreased while the crystallization temperature, viscosity, and pseudoplasticity increased. When the wood

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Li, Wei, Chunxiang Qian, Chunyang Zheng, et al. "Synthesis and Performance of Polycarboxylate Superplasticizer with Viscosity-Reducing and Low-Shrinkage Properties for Fair-Faced Concrete." Materials 17, no. 11 (2024): 2685. http://dx.doi.org/10.3390/ma17112685.

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A low-shrinkage and viscosity-reducing polycarboxylate superplasticizer was synthesized with maleic anhydride (MAH), diethylene glycol monobutyl ether, and methoxypoly (ethylene glycol) methacrylate (MPEGnMA). The surface tension, early shrinkage, cement paste performance, and application performance of concrete made with the synthesized water-reducing admixture were tested. A series of experiments were conducted to determine the optimal range of plastic viscosity coefficients for producing high-quality, fair-faced concrete with minimal surface defects. These experiments utilized both the synt

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Wang, Zhen Qing, Fang Liu, and Wen Yan Liang. "The Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear." Advanced Materials Research 211-212 (February 2011): 364–68. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.364.

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To further study the field of the mixed-mode interface crack tip under compression and shear, we analyze the problem on the quasi-static propagating of the interface crack theoretically and numerically.In this paper,we assumes that the artifical viscosity cofficient is in inverse proportion to power law of the plastic strain rate,and the stress of the interface crack possesses power law singularity. The viscosity of material,the friction touch effection of the crack-tip surface and the load hybrid parameter are considered. The asymptotic solution is established for elastic-viscoplastic field a

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Hadjistamov, Dimiter. "Dilatant Behavior of Systems with the Thixotropic Agent Aerosil 380 in the Epoxy Resin Araldite GY260." Applied Rheology 9, no. 5 (1999): 212–18. http://dx.doi.org/10.1515/arh-2009-0015.

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Abstract Model suspension with Aerosil 380 in epoxy resin Araldite GY260 and Aerosil 380 in silicone oil M20000 are compared. The systems with 7.5%, 10% and 12.5% Aerosil 380 in Araldite GY260 show shear thickening flow behavior. A shear induced hydrodynamic force effects at the onset of shear thickening a disorder of the well ordered movement of the Areosil particles in layers. The Areosil particles build-up a pseudo-mixture that lead to a sudden development of a three dimensional structure, i.e. to viscosity incerease. One can assume that the shear thickening can be explained with an order-t

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Kimura, Takeyoshi, Takumitsu Kida, and Masayuki Yamaguchi. "Viscoelastic Properties of Fully Biomass-Based Transparent Plastic Comprising Cellulose Acetate and Citrate Ester." Materials 15, no. 9 (2022): 3038. http://dx.doi.org/10.3390/ma15093038.

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Viscoelastic properties including melt processability were evaluated for a fully biomass-based glassy plastic comprising cellulose acetate (CA) and triethyl citrate (TEC). The TEC exerted an excellent plasticizing effect without dissolving the CA crystals. Pure CA has poor melt processability. In contrast, the TEC-plasticized CA had good melt-processability at 205 °C, which is lower than the degradation temperature of CA. Extrusion was possible even at 1000 s−1 without any flow instabilities, similar to conventional plastics showing good processability at extrusion. Furthermore, there was mark

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Matvienko, O. V., V. P. Bazuev, N. R. Sabylina, A. E. Aseeva, and A. A. Surtaeva. "SHVEDOV-BINGHAM MODEL OF STEADY FLOW OF VISCO-PLASTIC BITUMEN BINDER IN CYLINDRICAL TUBE." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 3 (June 27, 2019): 158–77. http://dx.doi.org/10.31675/1607-1859-2019-21-3-158-177.

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This paper studies the bitumen binder flow in terms of the Shvedov-Bingham model in a cylindrical tube. The dependence of the fluid flow rate on pressure drop is determined as well as the dependences between the radial velocity distribution and effective flow viscosity. Near the wall, the effective viscosity is low. However, in the vicinity of the rigid zone, a significant increase in the effective viscosity is observed. With increasing strain rates the effective viscosity decreases, which is explained by the destruction of the medium microstructure. With the pressure drop, the size of the har

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