基于聚乙二醇的湿致形状记忆织物的制备及性能  

Preparation of wet-driven shape memory fabrics based on polyethylene glycol and its' properties

作　　者：师文钊[1,2] 邢建伟[2] 刘瑾姝[2] 陆少锋[2] 

机构地区：[1]西安交通大学材料科学与工程学院,西安710049 [2]西安工程大学纺织与材料学院,西安710048

出　　处：《功能材料》2015年第15期15114-15118,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51403169)

摘　　要：采用分子量为1 500的聚乙二醇(PEG1 500)、多元醇醚化2D树脂(LF-2)及催化剂Mg Cl2·6H2O制备湿致形状记忆织物。以织物浸水尺寸收缩率及干态形变回复率对湿致形状记忆性能进行表征,利用傅立叶-红外光谱仪、SEM对湿致形状记忆织物的FT-IR光谱及纤维表面形态分析,并对湿致形状记忆机理进行探讨分析。研究结果表明,PEG1 500与纤维及树脂间形成了—C—O—C—化学交联,织物在浸水-烘干循环中浸水尺寸收缩率可达12%,干态形变回复率可达80%,有较好的湿致形状记忆性能;织物拉伸弹性及甲醛含量降低的同时,其抗起毛起球效果及吸湿性得到改善。Wet-driven shape memory fabrics were prepared with polyethylene glycol( PEG1 500),polyhydric alcohol etherified 2D resin( LF-2) and Mg Cl2·6H2O. The wet-driven shape memory effect was measured by shrinkage rate in wet state and shrinkage recovery rate in dry state. The morphology and FT-IR spectrum of wet-driven shape memory fabrics were characterized by scanning electron microscope and FT-IR spectrograph and the mechanism of wet-driven shape memory effect was analyzed. The results show that —C—O—C— chemical cross-linking was formed between PEG1 500,fibers and resin. In wet-dry cycles,the shrinkage rate of fabrics in wet state is up to 12% and the shrinkage recovery rate of fabrics in dry state is up to 80%. The elasticity and the formaldehyde content of the fabrics were decreased,while the pilling resistance and hygroscopic properties were significantly improved.

关 键 词：湿致形状记忆 聚乙二醇G1500 尺寸收缩率 形变回复率 

分 类 号：TB34[一般工业技术—材料科学与工程]