摘要
考察不同温度处理的聚酰亚胺前驱体凝胶膜的热稳定性和力学性能,以及不同升温速率对薄膜亚胺化程度的影响。结果表明:随着升温速率的增大,薄膜的亚胺化程度略有下降,但随着处理温度的升高,其热稳定性能和力学性能都有明显的提高,拉伸强度、弹性模量增大到107MPa和2770MPa。
The thermal stability and mechanical properties of sol film for polyimide precursor with different temperature treatment,and the effect of heating rate on degree of imidization was investigated. The results showed that the imidization degree of films decreased slightly with increase of heating rate, but the thermal stability and mechanical property obviously improved with increase of temperature, the tensile strength and elastic modulus increased to 107MPa and 2770MPa respectively.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2009年第8期80-83,共4页
Journal of Materials Engineering
关键词
高温热处理
聚酰亚胺薄膜
亚胺化
热稳定性
力学性能
high temperature treatment
polyimide film
imidization
thermal stability
mechanical property
