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Factors influencing EB curing of epoxy matrix |
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| Authors: | Li Fengmei Bao Jianwen Chen Xiangbao Bao Huaying Wang Huiliang |
| Affiliation: | a Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China b National Key Lab of Advanced Composites, Institute of Aeronautical Materials, Beijing 100095, China c Department of Chemistry, Beijing Normal University, Beijing 100875, China |
| Abstract: | The effectiveness of electron beam (EB) curing of epoxy resins was found to be influenced by catalyst. In the presence of iodonium salt (diaryl iodonium hexafluoroantimonate, C3), the EB curing of epoxy resin is easier than in the presence of triaryl sulfonium hexafluoroantimonate (C1), or triaryl sulfonium hexafluorophosphate (C2), or iron arene containing cationic catalyst (Irgacure 261). The epoxy 616 (diglycidyl ether of bisphenol A) and 648 (diglycidyl ether of phenolic novolacs) can be cured by the above onium salts catalysts C1–C3. The epoxy with glycidyl amino epoxide group (such as AG 80; AFG 90) could not be cured by onium salts catalyst. The influence of irradiation dose, temperature and the effect of impurities on curing reaction were investigated. |
| Keywords: | Electron beam curing Polymer matrix composites Epoxy resin |
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