含フッ素ポリメタクリレートとのIPN化によるポリウレタンの表面改質

抄録

Surface layer of Polyurethanene elastomers (PUEs) was modified by the use of 1H, 1H, 5H-Octafluoropentyl-methacrylate(OFPMA). The based PUE was prepared from poly(oxytetramethylene)glycol (PTMG, Mn=2037), 4, 4'-diphenyl methane diisocyanate(MDI), and 1, 4-butanediol(BD)/ trimethylolpropane (TMP). OFPMA and ethylene glycol dimethacrylate (EGDMA) were penetrated into the surface layer of PUE and polymerized. Morphology, friction and abrasion characterization of the modified PUEs were studied by means of FT-IR, polarizing microscope, SEM, contact angle tester, Heidon 14 friction tester and DIN abrasion tester. The modified PUEs exhibited lower friction coefficient and better abrasion resistance compared with the unmodified PUE. The mechanism of the improvement was discussed.