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Journal articles on the topic 'Plastic Ratio'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Uyen, Tran Minh The, Pham Son Minh, Van-Thuc Nguyen, Thanh Trung Do, Hai Nguyen Le Dang, and Van Thanh Tien Nguyen. "Amplification Ratio of a Recycled Plastics-Compliant Mechanism Flexure Hinge." Applied Sciences 13, no. 23 (2023): 12825. http://dx.doi.org/10.3390/app132312825.

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This research focuses on the fabrication of plastic flexure hinges from diverse plastics such as ABS, PP, HDPE, and LDPE. To enhance hinge efficiency, the recycling ratios are also investigated. The amplification ratio of different recycle ratios and plastic types are measured. The results show that the input and output displacements of all PP, ABS, and HDPE hinges are linear. The presence of recycled plastics has no impact on this basis. The pure PP, ABS, and HDPE flexure hinges achieve the highest amplification ratios of 5.728, 8.249, and 5.668. The addition of recycled plastics reduces the

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Istadi, Istadi, Luqman Buchori, and Suherman Suherman. "PLASTIC WASTE CONVERSION TO LIQUID FUELS OVER MODIFIED-RESIDUAL CATALYTIC CRACKING CATALYSTS: MODELING AND OPTIMIZATION USING HYBRID ARTIFICIAL NEURAL NETWORK – GENETIC ALGORITHM." Reaktor 13, no. 3 (2011): 131. http://dx.doi.org/10.14710/reaktor.13.3.131-139.

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The plastic waste utilization can be addressed toward different valuable products. A promising technology for the utilization is by converting it to fuels. Simultaneous modeling and optimization representing effect of reactor temperature, catalyst calcinations temperature, and plastic/catalyst weight ratio toward performance of liquid fuel production was studied over modified catalyst waste. The optimization was performed to find optimal operating conditions (reactor temperature, catalyst calcination temperature, and plastic/catalyst weight ratio) that maximize the liquid fuel product. A Hybri

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3

Duranay, Neslihan. "CO2 emission from combustion of lignite, waste plastics and biomass mixture pellets." Chemical Industry and Chemical Engineering Quarterly 25, no. 3 (2019): 239–46. http://dx.doi.org/10.2298/ciceq180921002d.

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Combustion is a familiar technique for disposal of urban wastes such as plastics when their recycling is impractical. It offers energy recycling and waste diminution. In this paper, combustion behaviours of blend pellets composed of binary and triple mixtures of plastic wastes, biomass and lignite in a laboratoryscale fixed-bed combustion system were examined. The materials chosen as waste plastic, biomass and lignite were, respectively, market plastic bags, furniture plant waste powder and Bing?l Karl?ova lignite. The effect of varied blend pellet composition on the combustion behaviour and C

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Saka, Moruff Gbolagade, Y. D. Dongs, and Y. I. Aujara. "POTENTIALS OF SAWDUST AND DISPOSED WATER SACHET WASTES FOR WOOD PLASTIC COMPOSITE PRODUCTION." FUDMA JOURNAL OF SCIENCES 6, no. 5 (2022): 76–81. http://dx.doi.org/10.33003/fjs-2022-0605-1097.

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The study investigated the potential of sawdust and disposed water plastics for the production of wood plastic composite. The sawdust was obtained from the plank market in Yola, while, the water sachets were hand-picked within the Modibbo Adama University premises. The gathered sawdust were sieved into 1.0 and 2.0 mm particle sizes, thoroughly mixed with already melted water sachet plastics at a ratio of 1:25 (100: 2500 ml) and 1:30 (100:3000 ml) respectively,. The mixtures were heated at (105.20 C,) and then filled into an already constructed oiled Aluminum mold of size 1.5 x 6 x 15 cm. Press

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Pasaribu, Monita, Muhammad Arya Sena, Maria Kristiani, Winda Sri Jaman, Asadian Puja Enggita, and Supardi Supardi. "Produksi Briket dari Limbah Plastik dan Ampas Tebu dengan Metode Pirolisis." JURNAL SAINS TEKNOLOGI & LINGKUNGAN 10, no. 2 (2024): 246–51. http://dx.doi.org/10.29303/jstl.v10i2.599.

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Plastic is a polymer product that is widely used in society. This resultx in an increase in plastic waste. Plastic waste processing needs to be done to prevent environmental emissions. Plasstic waste can be converted into an alternative energy source in briquettes. The reasearch object is to produce briquettes from plastic and sugarcane bagasse. Plastic briquettes and bagasse have a ratio of 1:2, 1:1 and 2:1. The second stage is the preparation and design of the tool using the pyrolisis method. Research variables include the composition of plastic waste and sugarcane bagasse. Analysis of briqu

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Berghuis, Nila Tanyela, Ujang Ahmad Soleh, Zulfikar Fauzan Ali, et al. "Utilization of Japanese Seeds and Soybean Seeds as Raw Materials for Making Flour." Stannum : Jurnal Sains dan Terapan Kimia 4, no. 2 (2022): 68–73. http://dx.doi.org/10.33019/jstk.v4i2.3632.

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The accumulation of plastic waste and excessive use of plastic is a common environmental issue in Indonesia. Plastics are synthetic polymers that are stable, water-resistant, light, flexible, and strong, but are very difficult to be broken down by microorganisms. Decomposition of plastic waste by burning can cause other environmental issues and during the combustion process can produce dioxin compounds that are harmful to health. An available and affordable alternative to reduce the use of plastic is by using bioplastics. Bioplastics are plastics made from natural materials that can be broken

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Berghuis, Nila Tanyela, Diah Kemala Mutmainah, Meliana Nur Savitri, et al. "Bioplastic from Cassava peel and eggshell waste." Journal of Natural Sciences and Mathematics Research 8, no. 2 (2022): 75–83. http://dx.doi.org/10.21580/jnsmr.2022.8.2.13696.

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The accumulation of plastic waste and excessive use of plastic is a common environmental issue in Indonesia. Plastics are synthetic polymers that are stable, water-resistant, light, flexible, and firm but very difficult to break down by microorganisms. Decomposition of plastic waste by burning can cause other environmental issues and, during the combustion process can produce dioxin compounds that are harmful to health. An available and affordable alternative to reduce the use of plastic is by using bioplastics. Bioplastics are plastics made from natural materials that microorganisms can break

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Sikora, Janusz, Łukasz Majewski, and Andrzej Puszka. "Modern Biodegradable Plastics—Processing and Properties: Part I." Materials 13, no. 8 (2020): 1986. http://dx.doi.org/10.3390/ma13081986.

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This paper presents a characterization of a plastic extrusion process and the selected properties of three biodegradable plastic types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based plastic (TPS-P), BIOPLAST GF 106/02; corn starch based plastic (TPS-C), BioComp®BF 01HP; and a polylactic acid (polylactide) plastic (PLA), BioComp®BF 7210. Plastic films with determined geometric parameters (thickness of the foil layer and width of the flattened foil sleeve) were produced from these materials (at indiv

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Kozhevnikova, M. E. "Plastic zone boundary and Poisson’s ratio depending on plastic loosening." Physical Mesomechanics 16, no. 2 (2013): 162–69. http://dx.doi.org/10.1134/s1029959913020070.

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Silvia Indrarini and Julinar Tryane Kobar. "Analisis Pengaruh Current Ratio, Price Earning Ratio, Return On Asset Dan Debt To Equity Ratio Terhadap Nilai Perusahaan." Akubis : Jurnal Akuntansi dan Bisnis 9, no. 1 (2022): 39–46. http://dx.doi.org/10.37832/akubis.v9i1.51.

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This study aims to determine the influence analysis of the Current Ratio (CR), Price Earning Ratio (PER), Return On Assets (ROA) and Debt To Equity Ratio (DER) on company value in plastic and packaging companies for the 2016-2020 period. This type of research is explanatory research. The population in this study were 15 plastic and packaging companies listed on the Indonesia Stock Exchange for the 2016-2020 period, the sample was selected using the purposive sampling method, 5 companies were obtained. The results of multiple linear regression analysis show that CR, PER, ROA and DER simul

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Yaswan, Rendri, Anwar Kasim, Novizar Nazir, Yefsi Malrianti, and R. A. Ilyas. "The Effect of Comparative Differences in Composition of Oil Palm Empty Fruit Bunches (OP-EFB) and HDPE Plastics : Physical and Mechanical Properties of Wood Plastic Composite (WPCs)." Journal of Fibers and Polymer Composites 4, no. 1 (2025): 56–67. https://doi.org/10.55043/jfpc.v4i1.248.

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Wood Plastic Composite (WPCs) in this study is made from oil palm empty bunches (OP-EFB) which function as fillers and plastics that function as a matrix. This study aims to analyze the effect of the comparison of the composition of the empty fruit bunches of oil palm and HDPE plastic based on the physical and mechanical properties of WPCs. Comparison of the composition of OP-EFB and plastics used in this study were (60:40, 55:45, 50:50, 45:55, 40:60) with the addition of maleic anhydride (MAH) coupling agents and benzoyl peroxide (BPO) initiators. The board manufacturing process is carried ou

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Catalan, Eric P., Julius T. Vergara, Rhea Joy D. Flora, Mark Joseph C. Tupas, and Niel A. Luceño. "Plastic Upcycling by Converting Plastic to Bricks." International Journal of Research and Innovation in Applied Science IX, no. XI (2024): 677–81. https://doi.org/10.51584/ijrias.2024.911049.

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This study aimed to explore the potential of upcycling plastic waste by incorporating recycled shredded PET bottles into cement mixtures for pavement bricks. The goal was to address the persistent demand and supply of plastics, which frequently contribute to ocean pollution. By substituting traditional aggregates with recycled PET, the research assessed the water absorption, waste conversion, durability, and practical applications of using plastic-enhanced cement mixtures in construction. Mixture #2 demonstrated good water resistance while being lighter than other mixtures, making it an ideal

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Ravindra B. Malabadi, Kiran P. Kolkar, Raju K. Chalannavar, Reshanth Vassanthini, and Bhagyavana S. Mudigoudra. "Industrial Cannabis sativa: Hemp Plastic-Updates." World Journal of Advanced Research and Reviews 20, no. 1 (2023): 715–25. http://dx.doi.org/10.30574/wjarr.2023.20.1.2102.

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This review paper updates the benefits of using hemp fibre for the production hemp plastic. Traditional fossil-fuel based plastic production emits massive levels of greenhouse gasses, and the material can take hundreds of years to break down. Traditionally, plastics are made from petroleum-based compounds, which release toxic gases into the atmosphere. Petroleum-based plastics and its by-product have a devastating effect on the land, water, and wildlife. Biodegradable plastics are produced using petro-chemicals just like conventional plastics except some additives are included in their manufac

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Ravindra, B. Malabadi, P. Kolkar Kiran, K. Chalannavar Raju, Vassanthini Reshanth, and S. Mudigoudra Bhagyavana. "Industrial Cannabis sativa: Hemp Plastic-Updates." World Journal of Advanced Research and Reviews 20, no. 1 (2023): 715–25. https://doi.org/10.5281/zenodo.12203146.

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This review paper updates the benefits of using hemp fibre for the production hemp plastic. Traditional fossil-fuel based plastic production emits massive levels of greenhouse gasses, and the material can take hundreds of years to break down. Traditionally, plastics are made from petroleum-based compounds, which release toxic gases into the atmosphere. Petroleum-based plastics and its by-product have a devastating effect on the land, water, and wildlife. Biodegradable plastics are produced using petro-chemicals just like conventional plastics except some additives are included in their manufac

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J. E., Agori,, Eseha, E. A., Oba, J., and Umukoro, O. L. "Cost-Benefit Analysis of Plastic Waste Mitigation Strategies in Ughelli, Delta State, Nigeria." Advanced Journal of Science, Technology and Engineering 4, no. 3 (2024): 46–64. http://dx.doi.org/10.52589/ajste-hntjpehu.

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Global plastics waste is an issue of ever-increasing urgency. Marine plastic pollution is a particularly challenging issue, as plastics take decades to break down, and so do micro- and nanoparticles that affect marine ecosystems and the food web. The plastics pollution problem is magnified in developing countries where rising production and consumption coexist with underdeveloped waste treatment systems and large volumes of imported plastic waste. Plastic waste management has become a critical environmental and public health challenge in many developing countries and cities, including Ughelli

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16

Fekhar, Bahmed, Mohammed Abdulraheem Saeed Al-Asadi, and Messaoud Khirennas. "Renewable hydrogen energy from polymeric waste: an aspen plus model of date palm seeds and mixed synthetic materials co-gasification." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 3 (2024): e12400. https://doi.org/10.54021/seesv5n3-020.

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This study investigates the co-gasification of biomass derived from date palm seeds and mixed waste plastics, utilizing Aspen Plus simulation to analyze syngas generation under various operational conditions. The co-gasification process, which combines agricultural by-products with plastic waste, offers a viable strategy for converting waste materials into valuable syngas, thereby promoting sustainable energy production and addressing environmental waste issues. A model was developed in Aspen Plus that incorporates reaction kinetics and thermodynamic data specific to the characteristics of dat

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17

Daniel, Dominique, J. J. Jonas, and J. Bussière. "The Elastic Strain Ratio, the Lüders Strain Ratio and the Evolution of r-Value During Tensile Deformation." Textures and Microstructures 19, no. 3 (1992): 175–88. http://dx.doi.org/10.1155/tsm.19.175.

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The elastic counterpart of the plastic strain ratio is derived from ultrasonic data measured on twenty commercial deep drawing steels. It is shown that the observed variations in plastic r are related to the evolution of texture, and are not affected either by the elastic range of deformation or by the propagation of Lüders bands. Further quantitative analysis suggests that the elastic strain ratio, determined non-destructively, can be used to predict plastic r-values by means of an empirical relationship.

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18

Park, Jun Kil, and Min Ook Kim. "Mechanical Properties of Cement-Based Materials with Recycled Plastic: A Review." Sustainability 12, no. 21 (2020): 9060. http://dx.doi.org/10.3390/su12219060.

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This study summarizes existing studies on plastic recycling to determine whether ocean plastics with high pollution degrees could be used for cement-based materials. In particular, the methods to recycle plastic waste, the effects of recycled plastic on the physical and mechanical properties of cement-based materials, and their effective usage were investigated. Workability, density, compressive strength, split tensile strength, and flexural strength of cement-based materials with recycled plastics were reviewed and divided into recycled aggregates and fibers. Based on the previous investigati

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Niyomukiza, J. B., A. Bitekateko, J. Nsemerirwe, B. Kawiso, and M. Kiwanuka. "Investigating the effect of PET plastic bottle strips on the strength and compressibility properties of clayey soil." IOP Conference Series: Earth and Environmental Science 894, no. 1 (2021): 012021. http://dx.doi.org/10.1088/1755-1315/894/1/012021.

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Abstract The production of plastic bottles by the manufacturing industry has increased drastically over the last six decades across the globe. This rapid production has led to the generation of many waste plastic bottles, thus causing environmental pollution. About 180 tonnes of plastics are generated daily in Kampala, the capital city of Uganda, and around 50% is dumped into the Kiteezi landfill. Instead of putting pressure on the landfill, these plastic bottle wastes could be reused in stabilizing soils with poor engineering properties. The current study investigates the engineering properti

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HA, Farag. "Production of Plastic Composite Material from Both of Agricultural and Plastic Wastes." Open Access Journal of Waste Management & Xenobiotics 6, no. 2 (2023): 1–12. http://dx.doi.org/10.23880/oajwx-16000184.

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Nowadays, interest in recycling the products in general has increased. The agricultural waste considers one of the most vital products that the world seeks to treat it. In addition, the danger caused by the waste of the plastic materials raises the concern about need the treat and recycling. The aim of this research study is using a mixture of rice husk and polypropylene to produce a plastic composite with quality characteristics. 27 samples of the plastic composite produced from three different polypropylene diameters (5 mm, 10 mm and 15 mm) mixed with three sizes (length) of rice husk (1 mm,

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Hashim, Mohamad Mohshein, Noraini Marsi, Thineshnaidu Letchumanan, Anika Zafiah Mohd Rus, Mohd Ridzuan Mohd Jamir, and Nurhafizzah Hassan. "Bending strength analysis of HDPE plastic reinforced wood waste and thermoplastic polymer to replace ceramic tile composites." Journal of Physics: Conference Series 2051, no. 1 (2021): 012045. http://dx.doi.org/10.1088/1742-6596/2051/1/012045.

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Abstract Commercial products made from plastics, papers, and various other materials are always in high demand in this day and age. The waste products also increase with time accumulating becomes very high that it impacts the environment. Recycling waste products can reduce waste and improve the development of manufacturing products as the materials are readily available as waste especially plastic waste. This project research presents bending strength analysis of HDPE plastic waste reinforced wood waste and thermoplastic polymer. The waste materials of HDPE plastic waste and wood waste potent

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Thanh, Nguyen Truong, Kim Lavane, and Nguyen Vo Chau Ngan. "Potential For Recycling Single-Use Plastic Waste - Case Study in Can Tho City, Vietnam." International Journal of Membrane Science and Technology 10, no. 1 (2023): 1184–94. http://dx.doi.org/10.15379/ijmst.v10i1.2823.

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Circular economy is an economic ideal that has been concretized by the Vietnamese Government in the Law on Environmental Protection 2020. As a part of this model, plastic waste reuse and recycling are encouraged to extend the product life cycle. This study investigates the composition of recyclable plastic waste within the domestic waste sources in Can Tho city. The wastes were collected at waste gathering places, residential areas, markets, bus stations, and schools in the urban district of Ninh Kieu and suburban district of Cai Rang in Can Tho city. The results show that disposable plastic i

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Zhang, Hua Yong, Xiao Jian Liu, and Hai Yan Sun. "Research on Technology of Wood-Plastic Composites." Advanced Materials Research 630 (December 2012): 75–79. http://dx.doi.org/10.4028/www.scientific.net/amr.630.75.

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Wood-plastic composites were produced by heating, blending and extruding with recycled plastics and wood fiber as chief raw materials and some thermoplastic resin as the additive. The compounding formula and producing craft were researched and optimized. The influence of the ratio of wood fiber and additives was examined. Wood-plastics composites with excellent performance were produced.

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Mutiara, Elisa, Faizah Hamzah, and Yossie Kharisma Dewi. "Karakteristik Arang Kulit Buah Kakao dan Arang Batang Bambu Terhadap Mutu Briket." JURNAL AGROINDUSTRI HALAL 10, no. 1 (2024): 13–22. http://dx.doi.org/10.30997/jah.v10i1.8250.

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The purpose of this research is to determine the optimum properties of biodegradable plastic made from banana weevil starch with the addition of straw cellulose as reinforcement. This research was conducted using Completely Randomized Method (CRD) with four treatments and four replications. In this study were the addition of straw cellulose with a ratio of starch and cellulose 1:0; 1:0,5 ; 1:1 and 1:1,5. Tests were carried out on strong tensile strength, elongation at break, biodegradation, swelling and water vapor transmission rate. The data obtained were analyzed statistically using analysis

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Haluzíková, B., Jan Valíček, P. Škubala, et al. "Identification of Surface Quality of Plastic Electrodes after Blasting." Defect and Diffusion Forum 334-335 (February 2013): 71–76. http://dx.doi.org/10.4028/www.scientific.net/ddf.334-335.71.

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Nowadays, plastics have become one of the most demanded materials, replacing the traditional ones such as metals. Therefore, many companies are concerned with the production of plastics, with their distribution and innovation development. Plastics have found utility in a wide range of applications, we use them every day. Measurement of surface roughness of plastic moldings produced by the injection molding process was carried out by a contact profilometer Mitutoyo Surftest SJ401. A reason for this measurement is to obtain information about surface roughness. For further technical adjustment is

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Rachma, Yasmin Aulia, and Sri Darmanti. "Total Asam, Total Padatan Terlarut, dan Rasio Gula-Asam Buah Pisang Raja (Musa paradisiaca L.) pada Kondisi Penyimpanan yang Berbeda." Buletin Anatomi dan Fisiologi 8, no. 1 (2022): 36–41. http://dx.doi.org/10.14710/baf.8.1.2023.36-41.

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Pisang Raja (Musa paradisiaca L.) merupakan salah satu jenis pisang yang populer di Indonesia. Pisang termasuk ke dalam golongan buah klimaterik, sehingga kondisi penyimpanan dan pengemasannya dapat mempengaruhi kualitas dan masa simpannya hingga sampai ke tangan konsumen. Dilakukan penghitungan total asam, total padatan terlarut, dan rasio gula-asam pisang raja yang diberi perlakuan penyimpanan berbeda, yaitu pada suhu ruang tanpa pengemas, suhu ruang dengan kemasan plastik, dan suhu ruang dengan kemasan plastik yang ditambahkan kalsium karbida. Pengamatan dilakukan pada hari ke 0, 3, dan 7.

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Jatadhara, G. S., T. K. Chandrashekhar, N. R. Banapurmath, S. B. Nagesh, and N. Keerthi kumar. "Experimental investigation of direct injection diesel engine using waste plastic oil as fuel." IOP Conference Series: Earth and Environmental Science 1084, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1755-1315/1084/1/012009.

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Abstract Recycling of waste plastics for power generation, automotive traction can provide perfect source of energy due to their energy content. Plastics utilization is growing daily although it is not environment friendly material but can be utilized for different applications. The disposal of after use plastic is a major task and quality of oil obtained from the same has properties similar to fuel. The main advantage of conversion of used plastic to gasoline provides additional fuel generation to be derived besides addressing the disposal issues. The plastic oil obtained from pyrolysis can b

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Zhang, Zipeng, Yat Choy Wong, Massoud Sofi, and Priyan Mendis. "Incorporation of Glass and Plastic Waste into Alkali-Activated Mill Residue Bricks." Sustainability 14, no. 24 (2022): 16533. http://dx.doi.org/10.3390/su142416533.

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Recycling of glass and plastic waste has been increasingly attracting the attention of researchers worldwide. Relevant studies have been conducted to prove the feasibility of incorporating glass and plastic wastes into cement-based concrete and fired bricks. However, the high embedded energy and large carbon footprint of these materials have hindered the achievement of sustainable goals. Hence, this study attempts to diversify the recycling pathways for glass and plastic waste via a low carbon route. The brick clay mill residue has been used as a precursor to prepare alkali-activated bricks co

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Federico, A. "Alternative determination of plastic volumetric strain ratio ∧." Géotechnique 39, no. 4 (1989): 711–14. http://dx.doi.org/10.1680/geot.1989.39.4.711.

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Kagami, Manabu, Youichi Sakai, and Hiroshi Okada. "Variable-ratio tap for plastic optical fiber." Applied Optics 30, no. 6 (1991): 645. http://dx.doi.org/10.1364/ao.30.000645.

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Liu, Y. C., and L. K. Johnson. "Hill’s plastic strain ratio of sheet metals." Metallurgical Transactions A 16, no. 8 (1985): 1531–35. http://dx.doi.org/10.1007/bf02658687.

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Liu, Jun An, Ke Xiang Wei, Xi Long Qu, Li Xin Tan, and You Rui Tao. "Calculating Methods on Remained Measure of Repairing Mold in Green Product Design." Applied Mechanics and Materials 34-35 (October 2010): 1614–19. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1614.

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This article primarily analyzes the shortcoming in the current formula of plastic and rubber mold shaped dimensions in practical， and fully considered the influence of plastic and rubber contracting fluctuation ratio on the accuracy of the plastic and rubber dimensions. As the introduction of δX sources from mold designers’ estimating error on plastic and rubber contracting ratio or the uncertainty of contracting ratio fluctuation, know that the actual contracting ratio of plastic and rubber fluctuates around the average plastic and rubber contracting ratio. Therefore, the remained measure of

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Jabbour, Toni, Ghazi Asmar, Mohamad Abdulwahab, and Jose Nasr. "Real contact ratio and tooth bending stress calculation for plastic/plastic and plastic/steel spur gears." Mechanics & Industry 22 (2021): 30. http://dx.doi.org/10.1051/meca/2021029.

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This paper presents an iterative method for calculating the effective contact ratio and the bending tooth stress for a pair of plastic/plastic and plastic/steel spur gears with an involute profile. In this method, the pinion and the gear are modeled, at each moment of the mesh cycle, as equivalent springs in parallel undergoing the same displacement along the line of action. This leads to the calculation of the bending stress by taking into account the number of teeth initially in contact and those which enter in contact prematurely. We also investigate the influence of certain gear parameters

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Fagkaew, Pattarasiri, Nattawin Chawaloesphonsiya, Saret Bun, and Pisut Painmanakul. "Improving the Separation of PS and ABS Plastics Using Modified Induced Air Flotation with A Mixing Device." Recycling 7, no. 4 (2022): 44. http://dx.doi.org/10.3390/recycling7040044.

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A dramatic increase in plastic waste has resulted in a strong need to increase plastic recycling accordingly. A selective flotation has been highlighted due to its outstanding efficiency for the separation of mixed plastics with analogous physicochemical characteristics. In this study, the effects of design and operational factors on the bubble’s hydrodynamic and mixing parameters in induced air flotation (IAF) with a mixing device were investigated through a design of experiment method (DOE) analysis for improving the plastic separation efficiency (i.e., PS and ABS). As a result of DOE analys

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Zhang, Hong Hai, Ai Min Gong, and Chun Yan Wang. "Experiment Research on Plastic Strength of Grouting Materials of Desulfurization Denitration Ash." Applied Mechanics and Materials 275-277 (January 2013): 2093–96. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2093.

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Derived calculation formula of plastic strength, and used mortar consistency instrument to determine plastic strength. Through experiment, the fly ash and silicon powder that desulfurized or denitrated as grouting materials, its change rules of plastic strength were studid under different water cement ratio and different dosage conditions. Results shows that, between the two factors of water cement ratio and dosage, the water cement ratio affect significantly the plastic strength. The smaller the water cement ratio, the more obvious the increase of the plastic strength as time growth. Early pl

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Hartono, Moh. "MENINGKATKAN MUTU PRODUK PLASTIK DENGAN METODE TAGUCHI." Jurnal Teknik Industri 13, no. 1 (2012): 93. http://dx.doi.org/10.22219/jtiumm.vol13.no1.93-100.

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Plastic waste is one type of waste that can not be broken down into the organic waste. Utilization of waste plastics to berecycled into plastic with better quality are rarely implemented. This study aims to utilize plastic waste in order to improve the quality of plastic products by Taguchi experimental design method that combines the pure plastic material composition of ore and recycled plastic (type PP/Polypropilena) with a certain pressure and temperature to produce a tensile strength of the plastic the better. From the experimental results, obtained by a combination of material composition

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Vibhakar, Chirag, R. S. Sabeenian, S. Kaliappan, et al. "Production and Optimization of Energy Rich Biofuel through Co-Pyrolysis by Utilizing Mixed Agricultural Residues and Mixed Waste Plastics." Advances in Materials Science and Engineering 2022 (January 3, 2022): 1–9. http://dx.doi.org/10.1155/2022/8175552.

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Two totally waste products, agricultural residues and mixed plastic wastes collected from domestic and industrial sectors, are used in this study for the recovery of energy rich biofuel and value-added chemicals. The copyrolysis experiments using fixed bed reactor are conducted in order to analyse the synergetic effects. The experimental works are carried out with different proportion of mixed plastics blended with agricultural residues. The reaction temperature and biomass-to-waste plastics ratio on product distributions are studied and addressed. The thermogravimetric analysis conducted at d

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Fang, Gui Fang, Peng Gao Zhang, and Long Wei. "Effect of Surface Topography on Contact Property of the End Face for Mechanical Seal." Applied Mechanics and Materials 419 (October 2013): 292–98. http://dx.doi.org/10.4028/www.scientific.net/amm.419.292.

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In order to understand the contact property of the end face for mechanical seal, simulation models of the elastic contact area ratio, the elastic-plastic contact area ration and the plastic contact area ratio of the end face are established using fractal parameters to characterize the surface topography. The effects of surface topography fractal parameters of B104a-70 mechanical seal on contact properties of the end faces are analyzed by theoretical simulation. The results show that the elastic contact area ratio increases rapidly at first and then decreases gradually, the elastic-plastic cont

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Rahim, Abdul, and Rustam Musta. "Pengaruh Penambahan Tepung Tapioka Pada Pati Ubi Kayu (Manihot esculenta) Terhadap Pembuatan Plastik Biodegradable dan Karakterisasinya." IJCA (Indonesian Journal of Chemical Analysis) 2, no. 2 (2019): 66–73. http://dx.doi.org/10.20885/ijca.vol2.iss2.art4.

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Research on Biodegradable Plastic Characterization of Cassava Wastes (manihot esculenta) Substitution of Tapioca Flour. As Biodegradable Plastics Base Material. This study aims to determine the ratio of cassava starch to tapioca starch which produces the best biodegradable plastic which is then used for testing the physical and mechanical properties of biodegradable plastic film using 5% acetic acid. Comparison of cassava starch with tapioca flour used is 1 : 1; 1 : 1,5; 1 : 2; 1 : 2,5; 1 : 3. The best plastics are obtained by comparison of cassava starch with tapioca flour is 1 : 3. The chara

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Buentello-Montoya, David Antonio, Miguel Ángel Armenta-Gutiérrez, and Victor Manuel Maytorena-Soria. "Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas." Energies 16, no. 19 (2023): 6819. http://dx.doi.org/10.3390/en16196819.

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Seaweed is of importance to the environment due to properties such as its CO2 sequestration capability. On the other hand, plastic is a versatile material important to society. Unfortunately, the abundance of both plastics and seaweed represents a challenge due to the need of adequate waste management. At first, algae and plastics might not appear suitable for energy recovery; however, with co-gasification, the results are promising. This work presents a model to simulate the co-gasification of Chlorella vulgaris, Sargassum fluitans, and Sargassum natans with plastics. The effect of the gasifi

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Obianyo, Ifeyinwa Ijeoma, Ibitayo Akintayo Taiwo, Abubakar Dayyabu, et al. "Modification of Lateritic Soil Using Waste Plastics for Sustainable Road Construction." Polymers 16, no. 19 (2024): 2689. http://dx.doi.org/10.3390/polym16192689.

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Lateritic soil, a prevalent geological material in tropical regions, often exhibits poor engineering properties, leading to road pavement failures. Meanwhile, the alarming rise in plastic waste poses environmental concerns. This innovative study explores the potential of utilizing waste plastics as a lateritic soil addictive for sustainable road construction. Varying percentages by weight of shredded waste plastic (2%, 4%, 6%, 8%, and 10%) were incorporated into lateritic soil samples, evaluating its effects on soil geotechnical properties. The results revealed that lateritized plastic (shredd

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Rajprasad, N. Acharya, Clinton Stephan, Harshith, Suryakanth Naik Praveen, and D. R. Sridhar. "Experimental Investigation on Waste-plastic Reinforced Concrete Brick." International Journal of Innovative Science and Research Technology 8, no. 5 (2023): 461–65. https://doi.org/10.5281/zenodo.7947449.

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The accumulation of plastic waste is a growing concern as disposable plastic products such as bags and water bottles, PVC pipes continue to be produced and discarded regularly. Disposing of plastic is challenging since it is not biodegradable and has a lower recycling rate than other materials. One promising solution is to manufacture concrete blocks using plastic flakes as an alternative material aggregate. This study sought to develop and test these blocks' compressive strength, taking into account factors such as the cement to aggregate ratio, water to cement ratio, size of plastic flak

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Tayyab, Saad, Asad Ullah, Kamal Shah, Faial Mehmood, and Akhtar Gul. "Influence of Reduced Water Cement Ratio on Behaviour of Concrete Having Plastic Aggregate." Civil Engineering Journal 4, no. 12 (2018): 2971. http://dx.doi.org/10.28991/cej-03091213.

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The production and use of plastic bottles is increasing tremendously with passing time. These plastic bottles become a problem when they are disposed as they are non-biodegradable. This means that the waste plastic, when dumped, does not decompose naturally and stays in the environment affecting the ecological system. The use of alternative aggregates like Plastic Coarse Aggregate (PCA) is a natural step in solving part of reduction of natural aggregates as well as to solve the issue discussed above. The researchers are trying from half a century to investigate the alternative materials to be

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Udhaya, Kumar T., and M. Jayadurgalakshmi. "Development of Light Weight Green Efficient Interlocking Blocks Using Waste Plastics and Industrial Wastes for Low Cost Housing Construction." Materials Science Forum 1144 (March 6, 2025): 71–76. https://doi.org/10.4028/p-byw41e.

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Annually, billions of metric tonnes of solid waste are produced, including Polyethylene Terephthalate (PET) plastic waste and other industrial manufacturing by-products. This study assesses durability of waste plastic bricks (WPB), which are made by repurposing scrap plastics from PET. Mechanical and fire resistance properties of WPB have been optimised by varying mixing proportions of PET plastic and mixtures of industrial waste materials like fly ash, waste glass powder and concrete debris in ratios of (20:80, 30:70 and 40:60) respectively. This investigation integrates various wastes synerg

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Jean-Marcel AMEWOUAME, Komi, Kwamivi N. SEGBEAYA, Yaovi Agbeko KOUTO, and Yawovi M. X. Dany AYITE. "STUDY OF THE PROPERTIES OF MORTAR INCORPORATED FROM MELTED PLASTIC BAGS." International Journal of Advanced Research 12, no. 07 (2024): 66–74. http://dx.doi.org/10.21474/ijar01/19024.

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The aim of this research is to study the physical-mechanical behaviour and durability of mortars containing melted plastic bags. To this end, 4cmx4cmx16cm test specimens of mortar containing cement or not and melted plastic bags at a mass ratio ranging from 10 to 25% of the mixture were produced. Compressive strength, flexural strength and acid durability were measured. The results show that the quantity of plastics in the mortars is inversely proportional to water absorption. Similarly, cementless mortars containing 25% plastic bags (MWC25) and cement mortars containing 25% plastic bags (CM25

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Ghilan, Dheya, and Egemen Teomete. "Photocatalytic gypsum plasters – studies of air cleaning properties and selected technical parameters." Cement Wapno Beton 24, no. 1 (2019): 21–32. http://dx.doi.org/10.32047/cwb.2019.24.1.3.

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This study aims to investigate the feasibility of using industrial waste plastics, polypropylene (PP), polyethylene (PE) and polyamide (PA), obtained from recycling factory, as reinforcement for mortar. As one of the main problems of using waste plastics in cementitious composites is the hydrophobic properties of the sur- face of the plastics, because it prevents the formation of adequate interfacial adhesion with cement paste. Surface treatment of waste plastics was applied using diluted solution of isopropanol. Three parameters were considered when designing the mortar mixtures; type of wast

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Kirikov S. V., Mishakin V. V., and Klyushnikov V. A. "Influence of microcracks on Poisson's ratio during plastic deformation of austenitic steel." Technical Physics 92, no. 3 (2022): 324. http://dx.doi.org/10.21883/tp.2022.03.53262.277-21.

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We researched the influence of damage accumulation on the Poisson's ratio measured by echo-pulse acoustic method during plastic deformation of 12Kh18N10T steel. On the basis of the obtained experimental data we calculated the partial contributions to the change in the Poisson's ratio of damage accumulation and formation of the strain induced martensite phase. The characteristics of stable cracks forming near strain-induced martensite particles at small degrees of plastic strain have been analyzed by computer simulation. The theoretical dependence of the change in the Poisson's ratio due to cra

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Ismail, Rifky, T. Prasojo, Mohammad Tauviqirrahman, J. Jamari, and D. J. Schipper. "Numerical Investigation of the Plastic Contact Deformation between Hemispheres: Variation of Radii Ratio and Normal Loads." Advanced Materials Research 1123 (August 2015): 16–19. http://dx.doi.org/10.4028/www.scientific.net/amr.1123.16.

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Investigation of local plastic deformation between rough surfaces in mechanical components such as gears, camshaft and bearings is very important. Contact between real surfaces occurs at the summits of the highest asperities which vary in height and radius. The plastic deformation of the contact between two asperities was studied in this paper. Asperity contact was modelled as a contact between hemispheres. The commercial finite element software, ABAQUS, was employed to perform the numerical contact analysis of the elastic perfectly-plastic deforming hemispheres with the ratios of radii (R2/R1

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Cheng, Su Zhen, Shang Jie Xu, Rong Cong, and Ke Liang Wang. "Experimental Study on Mix Design of Plastic Concret with Lower Elastic Modulus and Higher Impervious Coefficient." Advanced Materials Research 535-537 (June 2012): 1936–39. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1936.

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Through laboratory testing, the main properties and effects of rubber particle and water-binder ratio of plastic concrete are researched. The results indicate if the rubber particle of plastic concrete with certain water-binder ratio increases and its elastic modulus decreases, there is no effect to the permeability coefficient of plastic concrete basically. If the water-binder ratio of plastic concrete is lower, its elastic modulus increases but permeability coefficient reduces distinctly. Therefore, the comprehensive utilization of the test of rubber particle with change of water-binder rati

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TAKEKOSHI, Kunio, and Kazukuni NIWA. "306 The evaluating method of plastic Poisson's ratio." Proceedings of The Computational Mechanics Conference 2011.24 (2011): 52–54. http://dx.doi.org/10.1299/jsmecmd.2011.24.52.

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