E-beam curing of epoxy-based blends in order to produce high-performance composites |
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| Institution: | 1. Dipartimento di Ingegneria Chimica dei Processi e dei Materiali (DICPM), Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy;2. Istituto per la Sintesi Organica e Fotoreattività (ISOF), CNR, Via. P. Gobetti 101, 40129 Bologna, Italy;3. Centro Interdipartimentale di Ricerca sui Materiali Compositi (CIRMAC) Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy;1. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;2. Hungarian Academy of Sciences, Institute of Isotopes, Budapest, Hungary;1. Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;2. College of Agriculture, Yangtze University, Jingzhou 404325, China;3. Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;1. College of Sciences, China University of Petroleum, Qingdao 266555, China;2. State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100049, China;3. Department of Mathematics, Putian University, Putian, Fujian 351100, China |
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| Abstract: | In this work, blends of a difunctional epoxy monomer and a thermoplastic toughening agent are E-beam irradiated at two different dose rates and two different total absorbed doses. The influence of the processing conditions on the thermal properties and on the morphology of the obtained matrices has been investigated. In particular, it is shown how the increase of the dose rate causes an increase of the temperature during irradiation, thus inducing a simultaneous thermal and radiation curing. On the contrary, at low-dose rate the system mainly undergoes to radiation curing, thus making the cured material very sensible to a post-irradiation thermal treatment with a significant improvement of the thermal properties. |
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