聚酰亚胺泡沫塑料制备与性能研究  

STUDY ON THE SYNTHESIS AND PROPERTIES OF POLYIMIDE FOAMS

作　　者：王连才[1] 郭宝华[1] 曾心苗[2] 郭建梅[2] 李淑凤[2] 

机构地区：[1]清华大学化工系高分子研究所,北京100084 [2]北京市射线应用研究中心,北京100012

出　　处：《工程塑料应用》2008年第3期6-8,共3页Engineering Plastics Application

基　　金：中国博士后基金资助项目(20060400422)

摘　　要：采用一步缩聚法制备了聚酰亚胺(PI)泡沫塑料,并对其结构和性能进行了表征。经红外光谱测定,在1778、1720cm-1和1375cm-1处观察到PI特征峰。实验结果表明,所得PI泡沫塑料孔径均匀,平均密度小于0.30g/cm3,极限氧指数为38%,平均吸声系数为0.42,玻璃化转变温度为262.4℃,起始分解温度为549.7℃。Polyimide foams were prepared by single-stage process condensation, and their structure and properties were characterized. The characteristic peaks around 1778 cm^-1 , 1720 cm^-1 and 1375 cm^-1 of polyimide were observed on FTIR spectrum. The density of polyimide foams was less than 0.30 g/cm^3, the LOI was 38% and the mean sound absorption index was 0.42. The glass transition temperature and the initial decomposition temperatures in N2 of polyimide foams were observed to be 262.4℃ and 549.7℃.

关 键 词：聚酰亚胺 泡沫塑料 合成 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业] TQ323.7