聚乙烯醇纳米薄膜结晶的初步研究  

Study on the Crystallization Behavior of PVA Nano Film

作　　者：孙蒙蒙 古峰 张向阳 马禹[1] 

机构地区：[1]东华大学,上海201620

出　　处：《当代化工》2017年第10期1981-1983,共3页Contemporary Chemical Industry

基　　金：国家自然科学基金;项目号:21204011;含相变共缩聚高分子多级结构的形成;项目号:16D110607

摘　　要：通过加热70 nm的聚乙烯醇(PVA)纳米薄膜至玻璃化转变温度之上,初步研究了纳米薄膜的结晶现象。研究表明,PVA纳米薄膜具有很好的结晶性,可以得到较高的结晶度,且结晶度显著依赖于退火温度。在160 oC以上结晶时,表面会形成棒状晶体。The crystallization behavior and crystalline structure of 70 nm poly（vinyl alcohol） （PVA） thin film at various temperature above its glass transition temperature were studied. The results showed that the PVA nano film had excellent crystallization ability, and its crystallinity was strongly correlated with annealing temperature. Moreover, at temperature above 160oC, anomalous rod-like crystal appeared on the surface of thin film.

关 键 词：PVA 纳米薄膜 加热退火 结晶 

分 类 号：TQ325[化学工程—合成树脂塑料工业]