Synthesis and optimization of IPDI-based waterborne polyurethane wrinkle resistant finishing agent
Aliphatic waterborne polyurethane (WPU) was synthesized using polyether polyols, polyester polyols, isopropyl ketone diisocyanate (IPDI) and dimethylol propionic acid (DMPA) as raw materials through pre-polymerization self-emulsion method. The optimal synthetic technology was obtained through single factor method: pre-polymerization process was conducted at 65 ℃ for 2 h, extended chain reaction was performed under 70 ℃ for 2 h, R value (the molar ratio of isocyanate and hydroxyl) was 1.8-2.4 and DMPA dosage was 3.5%~5.5%. The finished fabric had good wrinkle resistance.
国家科技期刊平台
NSTL
万方数据
维普
