文献类型：期刊文献

英文题名：Preparation of temperature-sensitive polyurethanes for smart textiles

作者：Ding, X.M.[1]; Hu, J.L.[2]; Tao, X.M.[2]; Hu, C.P.[3]

机构：[1]Dong Hua Univ, Fash Art & Design Inst, Shanghai, Peoples R China;[2]Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Peoples R China;[3]E China Univ Sci & Technol, Inst Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2006

卷号：76

期号：5

起止页码：406

外文期刊名：TEXTILE RESEARCH JOURNAL

收录：;EI(收录号：20063210048469);WOS:【SCI-EXPANDED(收录号:WOS:000237961800008)】；

语种：英文

外文关键词：temperature-sensitive; polyurethanes; smart textiles

摘要：A series of segmented polyurethane (P U) were prepared using five different polyols and hexamethylene diisocyanate (HDI) as mixing soft segment, 4,4'-diphenylmethane diisocyanate, hydrophilic segment poly (ethylene glycol) 200 (PEG 200) and chain extender 1,4-butanediol (1,4-BDO) as triblock hard segment. The microstructure of the PUs was investigated by differential scanning calorimetry, wide-angle X-ray, and polarizing microscopy. Tensile property was measured, and the water vapor transport property of the PU membranes as a function of temperature was tested accordingly. It was found that the PUs with crystalline soft segments were temperature-sensitive; that is, crystal melting of soft segment results in the significant increase in water vapor permeability of the PU membranes. Proper molecule design can set switch temperature ranges in water vapor permeability of the membranes from 10 to 40 degrees C including body temperature. Such properties can contribute to the development of smart textiles.