Results 21 to 30 of about 184,156 (264)
Determination of thermo-mechanical properties of recycled polyurethane from glycolysis polyol
Scientific African, 2021 Polyurethane foam is one of the most versatile polymers widely used in the automotive industry. However, due to the rising amount of polyurethane foam waste in the environment, there is growing research attention focusing on circular economy solutions to
James K. Njuguna +5 more
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The Electronic Journal of Combinatorics, 2020 We consider the involutions known as toggles, which have been used to give simplified proofs of the fundamental properties of the promotion and evacuation maps. We transfer these involutions so that they generate a group $\mathscr P_n$ that acts on the set $S_n$ of permutations of $\{1,\ldots,n\}$.
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Scientific Reports, 2021 This paper presents a research on the kinetics and gas release laws of the cooperative spontaneous combustion of coal-polyurethane binary system by means of thermogravimetric analysis and spontaneous combustion simulation experiments.
Haiyan Wang +3 more
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Shuiwen dizhi gongcheng dizhi, 2021 In view of the problems existing in the ecological restoration of rock slope, such as the slide of the soil substrate, the serious loss of the surface soil and the poor growth of vegetation, etc., in this paper, polyurethane organic polymer materials and
Yongxiang YU +6 more
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Crystals, 2023 Polyurethane is a multipurpose polymer with indispensable physical characteristics and technical uses, such as films/coatings, fibers, and foams. The inclusion of nanoparticles in the polyurethane matrix has further enhanced the properties and potential ...
Ayesha Kausar +5 more
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Research Progress in Characterization Methods of Anti-corrosion and Wear-resistant Polyurethane Coatings [PDF]
MATEC Web of Conferences, 2022 Polyurethane is a coating material widely used in the field of anti-corrosion and wear resistance. At present, a lot of research work has been carried out in the research and development of polyurethane materials and process improvement.
Jia Xinghui +4 more
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Tribology Online, 2017 Texturing on sliding surface of resin seal ring was attempted to improve lubrication in this study. Numerical analysis of hydrodynamic flow at the sliding surface was conducted by Reynolds equation using the finite differential method.
Koji Watanabe +3 more
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The Impact of Polysulfone Solution Concentration on the Morphology of the Support Layer in Thin-Film Composite Membranes [PDF]
علوم و تکنولوژی پلیمرHypothesis: Among different membrane processes, reverse osmosis is widely used in desalination, water treatment, and the preparation of ultra-pure water.
samal babanzadeh +1 more
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Frontiers in Chemistry, 2022 Waterborne polyurethane has been proven to be an ideal additive for the preparation of hydrogels with excellent mechanical properties. This work reports that a satisfactory adhesion of acrylamide hydrogels can be obtained by introducing a large amount of
Jiahao Shen +10 more
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Mechanical properties of foamed polyurethane solidified ballasted track
High-Speed Railway, 2023 Foamed Polyurethane Solidified Ballasted Track (FPSBT), an innovative railway track, is formed by solidifying ballast bed with foamed polyurethane. Compared with the traditional Discrete Ballasted Track (DBT), FPSBT does not require regular maintenance ...
Yang Xu +3 more
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