文献类型：期刊文献

英文题名：γ-Ray irradiation stability and damage mechanism of glycidyl amine epoxy resin

作者：Diao, Feiyu[1];Zhang, Yan[1];Liu, Yujian[1];Fang, Jun[1];Luan, Weilin[2]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Polymers & Related Techno, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure & Safety, MOE, Shanghai 200237, Peoples R China

年份：2016

卷号：383

起止页码：227

外文期刊名：NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

收录：;EI(收录号：20163202696009);WOS:【SCI-EXPANDED(收录号:WOS:000383007300029)】；

基金：The work was supported by the National Key Basic Research Program of China (973 Program) (No. 2013CB035505), Shanghai Leading Academic Discipline Project (B502).

语种：英文

外文关键词：Epoxy resin; gamma-Ray irradiation; Stability; Damage mechanism

摘要：Irradiation stability of triglycidyl-p-aminophenol (TGPAP) epoxy resins was evaluated according to the changes of physico-chemical and mechanical properties under Co-60 gamma-ray irradiation with a dose rate of 10 kGy/h. The result shows that with the increase of radiation dose, bending strength, thermal stability, free radical concentration and storage modulus of epoxy resin decrease first, then increase slightly, and decline sharply at the end with a dose of 960 kGy, due to competition effects between radiation-induced degradation and cross-linking reaction. The damage mechanism was derived by analyzing structure and composition change of AFG-90 resins after irradiation via IR and XPS. Irradiation will result in weak bond breaking such as C-C and C-N bond, and new bond forming like C=C and C=O. (C) 2016 Elsevier B.V. All rights reserved.