冷凝法制备具有表面凸起结构的PVA纳米薄膜  

Preparation of PVA Nano Film With Surface Bump Structure by Condensation Method

作　　者：古峰 张向阳 孙蒙蒙 马禹[1] 

机构地区：[1]东华大学,上海201620

出　　处：《当代化工》2017年第9期1814-1816,共3页Contemporary Chemical Industry

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

摘　　要：通过控制PVA纳米薄膜的温度,将空气中的水汽冷凝在薄膜表面,制得具有表面凸起结构且结构数目可控的PVA纳米薄膜,采用的方法为"冷凝法"。通过偏光显微镜和红外光谱仪对薄膜的表面及内部结构的变化进行表征。结果显示,在10 oC到-5 oC范围内,随着处理温度的降低,薄膜表面凸起结构的数目会增加,而且经过处理后薄膜的结晶度可以得到有效地提高。By controlling the temperature of PVA nano film, the moisture was condensed on the surface of the film, and then PVA nano surface bump structure film whose bump number can be controlled was obtained by the condensation method. The change of surface and internal structure in the film were characterized by polarizing microscopy and FTIR. The results show that the number of bump structure of PVA nano film increase with the decrease of temperature in the range 10 ℃ to-5℃, and the crystallinity of the film can be improved effectively by treatment.

关 键 词：温度 凸起结构 结晶度 

分 类 号：TQ325[化学工程—合成树脂塑料工业]