聚酰亚胺/二氧化硅杂化薄膜性能研究  

Studies on the Properties of Polyimide Composites Filled with SiO_2 Nano-particles

作　　者：钟赤锋[1,2] 

机构地区：[1]东莞理工学院化学与环境工程学院,广东东莞523808 [2]东莞理工学院工程技术研究院东莞市清洁生产科技中心,广东东莞523808

出　　处：《东莞理工学院学报》2011年第5期14-17,共4页Journal of Dongguan University of Technology

基　　金：东莞市科技项目2006[18]

摘　　要：研究了改性纳米二氧化硅对聚酰亚胺薄膜性能的影响。采用DSC,TG和DMA对薄膜热性能进行分析。热分析的结果表明,纳米二氧化硅的含量对聚酰亚胺的玻璃化转变温度(Tg)和耐热性能基本没有影响。DMA的结果还表明,二氧化硅含量越高,薄膜的储存模量越高。TEM分析表明,在聚酰亚胺中存在较大二氧化硅聚集体。The heat and mechanical properties of polyimide hybrid films filled with SiO2 nano-particles as a function of silica content had been studied. Their structures and properties are characterized by TG, DSC, DMA and TEM. The results show these fihns had the same high thermal behavior as silica content increase. The DMA resuhs show that the storage modulus increases with the increasing of content of silica particles. The morphology of the films is also analyzed by using TEM.

关 键 词：纳米二氧化硅 聚酰亚胺 性能 

分 类 号：TQ323.7[化学工程—合成树脂塑料工业]