Polyurethane nanocomposite foamsTensile strengthPolyurethanes (PUs) are very versatile polymeric materials with a wide range of physical and chemical properties. PUs also have desirable properties, such as high abrasion resistance, tear strength, shock absorption, flexibility, and elasticity, and are ...
Physical Properties of Polyurethane Modified with Poly(m-Phenylene Isophthalamide)swelling behaviornatural rubber vulcanisatessorption methodMooney-Rivlin equationA segment of block copolymers with poly(m-phenylene isophthalamide) (PmIA) length was prepared. The block copolymers were prepared using ...
Electrophysical Properties of Polyurethane-Based Composite Coatingscomposite materialconductive coatingpolyurethane varnishgraphiteNot Availabledoi:10.1007/s11182-013-0125-2T. D. MalinovskayaS. V. MelentyevRussian Physics Journal
Methods of making and using thermoplastic block copolymers US5455309 1990年8月3日 1995年10月3日 Henkel Kommanditgesellschaft Auf Aktien Blocks of a dimer acid/aliphatic or cycloaliphatic diamine-based polyamide and a polyether/glycerol/diisocyanate-based polyurethane; hot melt adhesives; flexibility......
The polyurethane-chitosan (PU/CS) blends can be dissolved in the acetic acid and cast into films. The mechanical properties including tensile strength and elongation, as well as the water absorption and thermal properties of the PU/CS films were evaluated. The tensile strength increased with the...
The present invention relates to a method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of water as a blowing agent, a cell stabilizer, a gelling catalyst, and a tertiary amino alkyl amide catalyst composition. The catalyst compos...
Both HCFC- and pentane-blown rigid polyurethane foams have been prepared from polyols derived from soybean oil. The effect of formulation variables on foam... A Guo,I Javni,Z Petrovic - 《Journal of Applied Polymer Science》 被引量: 135发表: 2015年 Physical properties of water-blown rigid ...
The novel mechanism of exfoliation of silicate was investigated. Exfoliation and intercalation was achieved even at 15 wt % in the polyurethane (PU) matrix via in situ polymerization. Through using IR consumption graph of curing agent, crosslinking equation could be derived. The diffusion rate of...
Physical and thermal properties of UV curable waterborne polyurethane dispersions incorporating hyperbranched aliphatic polyester of varying generation number Physical and thermal properties of UV curable waterborne polyurethane dispersions incorporating hy- perbranched aliphatic polyester of varying generation ...
Polyurethane and polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties Elastomers with improved physical properties, particularly hardness, resilience, tear strength, and compression set, may be prepared by the chain extension or moisture cure of isocyanate-terminated ...