Preparation and characterization of SiO2/polyimide composite films

被引：0

作者：

Cheng Jingdong ^{[1
]}

Wang Cong ^{[1
]}

Han Keqing ^{[1
]}

Yu Muhuo ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

来源：

PROCEEDINGS OF THE 2007 INTERNATIONAL CONFERENCE ON ADVANCED FIBERS AND POLYMER MATERIALS VOLS 1 AND 2 | 2007年

关键词：

polyimide; silica sol; azeotrope; hybrid film;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The traditional silica/polyimide (SiO2/PI) hybrid films were prepared via a sol-gel process and the silica particles were obtained from hydrolyzing tetraethylorthosilicate (TEOS). In this article, a new SiO2/ N',N-dimethylacetamide (DMAc) solution was prepared and the nano-sized silica particles from silica sol dispersed very well in this organic solution. The novel SiO2/PI composite film was synthesized by reaction of 4,4'-Oxydianiline (ODA) and pyromellitic dianhydride (PMDA) in this new SiO2/DNLAC solution. The morphology of composites were characterized by SEM, the result indicated that silica particles homogeneously dispersed in polyimide films. TGA showed the decomposition temperature of the polyimide films had enhanced with the increase of silica content. Tensile tests on the films indicated an increase in the mechanical properties with the addition of silica particles.

引用

页码：973 / 975

页数：3

共 7 条

[1] Polyimide-ceramic hybrid composites by the sol-gel route [J].