引用本文:
王小妹, 龙宁华. 氟改性聚氨酯乳液的合成及其表面性能[J]. 应用化学,
2006, 23(10): 1104-1107.
Citation: WANG Xiao-Mei, LONG Ning-Hua. Synthesis and Surface Properties of Fluorinated Polyurethane[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1104-1107.
Citation: WANG Xiao-Mei, LONG Ning-Hua. Synthesis and Surface Properties of Fluorinated Polyurethane[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1104-1107.
氟改性聚氨酯乳液的合成及其表面性能
English
Synthesis and Surface Properties of Fluorinated Polyurethane
Abstract:
Fluorinated polyurethane(FPU) emulsion was synthesized via copolymerization of fluorinated polyol,isophorone diisocyanate(IPDI),poly(1,4-butylene adipate) glycol(PBA),dimethlylol propionic acid(DMPA) and trimethylol propane(TMP).The extent of micro-phase separation in FPU film and the surface properties of the FPU film were studied.The results show that the extent of the micro-phase separation in the FPU increases with fluorine content.A layer of 150~200 μm thick from the surface is rich in fluorinated chains in the fluorinated polyurethane film.The water contact angle of the FPU dry films becomes significantly greater than that of polyurethane.The water(contact) angle was 70° when ω(DFA) was 1%.The water resistence becomes better.
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Key words:
- fluorinated
- / polyurethane emulsion
- / surface character
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