Insights into Phthalonitrile/Epoxy Blends Modification System from Non-competitive Cure System Based on Alicyclic Anhydride  

作　　者：Jiang-bo Lv Jing-zhi Ma Kang Cheng Chang Chen Jiang-huai Hu 曾科 杨刚 

机构地区：[1]State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University

出　　处：《Chinese Journal of Polymer Science》2017年第12期1561-1571,共11页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51203098 and 51173114)

摘　　要：A series of polymer blends were prepared from 1,3-bis（3,4-dicyanophenoxy）benzene（3 BOCN） and epoxy resin with methyl tetrahydrophthalic anhydride as curing agent. The curing behavior and curing kinetics of the blends were studied by differential scanning calorimetry. The apparent activation energy of the blends with various contents of 3 BOCN was higher than that of the blends without 3 BOCN. A model experiment suggested that there is no obvious reaction between phthalonitrile and epoxy. The thermal and mechanical properties of the polymer blends were evaluated. The polymer blends exhibit high storage modulus and char yield compared with the neat epoxy. The polymer blends show ductile fracture morphology by scanning electron microscopy（SEM） images.A series of polymer blends were prepared from 1,3-bis（3,4-dicyanophenoxy）benzene（3 BOCN） and epoxy resin with methyl tetrahydrophthalic anhydride as curing agent. The curing behavior and curing kinetics of the blends were studied by differential scanning calorimetry. The apparent activation energy of the blends with various contents of 3 BOCN was higher than that of the blends without 3 BOCN. A model experiment suggested that there is no obvious reaction between phthalonitrile and epoxy. The thermal and mechanical properties of the polymer blends were evaluated. The polymer blends exhibit high storage modulus and char yield compared with the neat epoxy. The polymer blends show ductile fracture morphology by scanning electron microscopy（SEM） images.

关 键 词：Polymer blends PHTHALONITRILE Epoxy resin NON-COMPETITIVE 

分 类 号：O631[理学—高分子化学]