纳米SiO_2Al_2O_3聚酰亚胺杂化薄膜的制备及表征  

Character and preparation of polyimide Nano-SiO_2Al_2O_3Hybrid Films

作　　者：禹坤[1] 于先进[2] 

机构地区：[1]淄博职业学院化学工程系,山东淄博255013 [2]山东理工大学化学工程学院,山东淄博255049

出　　处：《山东理工大学学报（自然科学版）》2006年第4期74-76,80,共4页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：采用溶胶凝胶法制备了二氧化硅及三氧化二铝溶胶,将其掺入聚酰胺酸基体中,得到SiO2-Al2O3聚酰亚胺杂化薄膜,对膜的结构性能进行了研究和表征.结果表明,薄膜材料中SiO2和Al2O3粒子分散均匀,与有机相存在键合,材料热分解温度有所提高.Silica sol and alumina sol were prepared by sol-gel method. These nano silica and alumina materials were mixed with polyamic acid to prepare the polyimide/nano-SiO2-Al2O3 hybrid films. The structure, micro-morphology and thermal properties of the films were characterized by FTIR, SEM and TGA. The results indicated that SiO2 and Al2O3 particles were well dispersed in PI hybrid films and the chemical bonds between organic and inorganic phase were found. The thermo-decomposed temperature of the films was also increased after appending SiO2 and Al2O3 particles.

关 键 词：溶胶凝胶法 聚酰亚胺 纳米杂化 

分 类 号：TQ050.421[化学工程]