ポリメリックMDI(PMDI)によるポリウレタンの表面改質 Controlling of Higher Order Structure and Friction/Abrasion of Polyurethane by Surface Modification, Part2.Surface Modification of Polyurethane Elastomers by Polymeric MDI
Surface layer of Polyurethane elastomers (PUEs) was modified by the use of polymeric isocyanate (PMDI). PUEs were prepared from poly (oxytetrametylene) glycol (PTMG, Mn=2037), or poly(ethylene adipate) glycol (PEA, Mn=2015), 4, 4′-diphenyl methane diisocyanate (MDI), and 1, 4-butane diol (BD)/trimethylol propane (TMP). PMDI was penetrated into the surface layer of PUEs and reacted with methanol and fluoro alchol. Morphology, friction and abrasion characterization of the modified PUEs were studied by means of FT-IR, polarizing microscope, Heidon friction tester and DIN abrasion tester. The modified PUEs exhibited lower friction coefficient and higher abrasion resistance compared with the unmodified PUE.
日本ゴム協會誌 73(9), 503-510, 2000-09-15
THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN