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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. shu

Synthesis and Surface Properties of Fluorinated Polyurethane

WANG Xiao-Mei ^, ,
LONG Ning-Hua

1.
School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 5710275

Corresponding author: WANG Xiao-Mei,
Received Date: 7 December 2005
Available Online: 29 March 2006
Fund Project: 广东省"十五"重大专项A(3030302) (3030302)

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.
- fluorinated,
- polyurethane emulsion,
- surface character
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