Results 11 to 20 of about 225,323 (289)
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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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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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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Developments of polyurethane in biomedical applications: A review
Resources Chemicals and Materials, 2023 Polyurethane is an excellent and widely used polymer material. In synthesizing polyurethane, the structure of soft and hard segments in polyurethane could be adjusted, which can obtain better properties than other polymer materials, such as good ...
Minghui Cui +4 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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Synthesis of polyurethane/clay nanocomposites based palm oil polyol coating [PDF]
Journal of Mechanical Engineering and Sciences, 2015 In this study, we investigated the Polyurethane paint based on palm oil with the addition of nanoparticles montmorillonite as a heat-resistant. The composites with 1 wt%, 3 wt% and 5 wt% of bentonite filler content obtained by synthesizing in situ were ...
Teuku Rihayat +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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Study of Aerogel-Modified Recycled Polyurethane Nanocomposites
Nanomaterials, 2023 In this study, a liquid regenerated polyether polyol was obtained after the degradation of waste PU foam by the two-component decrosslinker agents ethylene glycol and ethanolamine.
Xiaohua Gu +3 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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