聚ε-己内酯与EVA树脂共混体系的热致形状记忆功能研究  

Study on thermal shape memory function of poly(ε-caprolactone)and EVA blends

作　　者：金和[1] 佟德林[1] 顾有伟[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《化工新型材料》2015年第12期172-174,共3页New Chemical Materials

摘　　要：采用聚ε-己内酯(PCL)与EVA树脂共混的方法制备具有部分相容性的共混体系,并通过辐照交联制备热致形状记忆功能材料。探讨了凝胶含量、辐照剂量、EVA含量之间关系以及对形状记忆性能的影响。结果表明:PCL/EVA共混物的形状回复率随辐照剂量增加而上升。低辐照剂量时,随PCL/EVA共混物中EVA含量增加,凝胶含量增加,同时形状回复率上升,达到形状记忆性能的临界辐照剂量下降。而高辐照剂量时,EVA含量对凝胶含量和形状回复率的影响不显著。The blending polymer with partial compatibility was prepared by blending poly（ε-caprolactone）and EVA resin and the material with thermal shape memory function was prepared by irradiation crosslinking.The relationship between the gel content,the irradiation dose and EVA content and their influences on the shape memory function were studied.The results showed that the shape recovery rate of PCL/EVA polymer increased with the increase of irradiation dose.In the case of low irradiation dose,with the increase of EVA content in polymer,the gel content increased,the shape recovery rate increased and the irradiation dose of satifying shape memory function decreased simultaneously.But in the case of high irradiation dose,EVA content had little influence on the gel content and the shape recovery rate.

关 键 词：聚Ε-己内酯 EVA树脂 共混物 形状记忆功能 

分 类 号：TQ317[化学工程—高聚物工业]