Synthesis of atemperature-sensitive waterproof and breathable polyurethane and its application in woolen fabric processing
A novel hydrophilic polyether shape memory polyurethane was prepared from 4,4- diphenylmethane diisocyanate (MDI), polytetramethylene ether glycol (PTMG), polyethylene glycol (PEG) and the polyoxyethylenetriol (PMG) prepared by us with 1, 4- butanediol (BDO) as the chain extender. Several representative properties of the polyurethane such as moisture permeability, water repellent ability, bibulous ability and the responsibility of its properties to environmental temperature were studied. The studies show that the polymer has a better affinity for water, whose critical change temperature is about 23℃. The water vapor transmission rate, WVT (38℃) of the fabric coated with the polyurethane achieves 3000g/(m<2>·24h), water repellency approaches 7kPa, and the response range to environmental temperature is round about 20～30℃.
temperature-sensitive waterproof and breathable polyurethane
Quan Heng Xing Jianwei Fan Zenglu
School of Textile and Materials, Xian Polytechnic University, Xian 710048, China School of Chemica School of Textile and Materials, Xian Polytechnic University, Xian 710048, China
国际会议
2006中国国际毛纺织会议暨IWTO羊毛论坛(2006 China International Wool Textile Conference & IWTO Wool Forum)
西安
英文
466-470
2006-11-19（万方平台首次上网日期，不代表论文的发表时间）