天津工业大学学报2012，Vol.31Issue(2)：6-9,4.
聚乙二醇基形状记忆水性聚氨酯的合成与性能研究
Synthesis and properties of PEG-based waterborne polyurethane with shape memory effect
李静 1张志英 1单建林 2唐亚新 2孟伟康 1董知之 1肖长发1
作者信息
- 1. 天津工业大学材料科学与工程学院,天津300160
- 2. 保定市万达环境技术工程有限公司,河北保定071051
- 折叠
摘要
Abstract
A series of waterborne polyurethane is synthesized by using polyethylene glycol (PEG) with different molecular weight as its soft segments and IPDI-BDO-DMPA as its hard segments. The crystallization of the soft segments and the shape memory effect are analyzed through infrared spectrum, differential scanning calorimetry (DSC), and shape memory effect testing. The results show that the crystallization of the soft segments is related to the molecular weight of the soft segments and the hard segment content. The polyurethane has crystallinity when the soft segment molecular weight is greater than 2 000 and the melting temperature and enthalpy of samples are increases with the PEG molecular weight increasing. If the molecular weight of the soft segments is constant, the melting temperature and enthalpy decrease with the hard segment content increasing. The shape memory effect of polyurethane samples reach optimal value when the molecular weight of the soft segment is 4 000 and the hard segment content is 30%.关键词
聚乙二醇/水性聚氨酯/结晶/形状记忆效应Key words
polyethylene glycol/ waterborne polyurethane/ crystallization/ shape memory effect分类
通用工业技术引用本文复制引用
李静,张志英,单建林,唐亚新,孟伟康,董知之,肖长发..聚乙二醇基形状记忆水性聚氨酯的合成与性能研究[J].天津工业大学学报,2012,31(2):6-9,4.
