聚醚聚氨酯/环氧树脂互穿网络聚合物的研究(Ⅱ)  

The Investigation on Polyurethane/Polyepoxide Resin Interpenetrating Polymer Networks(Ⅱ)

作　　者：李玉玮[1] 王静媛[1] 栗宜明 张丽梅[1] 汤心颐[1] Li Yuwei;Wang Jingyuan;Li Yiming;Zhang Limei;Tang Xinyi(Department of Chemistry,Jilin University,Changchun)

机构地区：[1]吉林大学化学系

出　　处：《高等学校化学学报》1988年第12期1282-1284,共3页Chemical Journal of Chinese Universities

基　　金：中国科学院科学基金。

摘　　要：合成了不同类型聚醚聚氨酯/环氧树脂(PU/EP)互穿网络聚合物(IPN),通过改变PU中聚乙二醇分子量、3OH/2OH及NCO/OH比值等,研究IPN组份间分子混合程度,采用电镜、动态力学分析及应力应变等测试方法表征。结果表明:聚乙二醇分子量降低及3OH/2OH、NCO/OH比的提高,可使相容性提高,材料力学性能增强。A series of polyurethane/polyepoxide resin (PU/EP = 50/50) interpenetrating polymer networks (IPN) was prepared. The sample of each type differed in the molecular weight (Mw) of the polyol, 30H/2OH ratio and NCO/OH ratios in the PU componet. The extent of mixing of the components in these IPN was investigated by using electron microscopy, dynamic mechanical analysis and tensile testing. The results show that the extent of interpenetration can be improved by decreasing the Mw of the polyol and increasing the 3OH/2OH ratio, NGO/OH ratio in the PU component.

关 键 词：互穿网络聚合物 聚醚聚氨酯 环氧树脂 

分 类 号：TQ3[化学工程]