硅橡胶辐射老化的研究进展  

Recent progress in irradiation-induced aging of silicones

作　　者：陈洪兵[1] 秦梓铭 王浦澄[1] 刘波[1] 黄玮[1] CHEN Hongbing;QIN Ziming;WANG Pucheng;LIU Bo;HUANG Wei(Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621000,China)

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621000

出　　处：《辐射研究与辐射工艺学报》2020年第3期1-9,共9页Journal of Radiation Research and Radiation Processing

基　　金：国防科工局核科学挑战专题(TZ2018004);国家自然科学基金(U1530259)资助

摘　　要：硅橡胶因其优异的性能而在工程领域中得到广泛应用。在航空航天和核电等高能辐射环境中服役时,辐照导致的交联和降解使材料性能下降,从而影响服役寿命。硅橡胶的辐射老化受多种因素影响,老化行为复杂,难以预测。本文综述了该领域的研究进展,总结了吸收剂量、剂量率、环境因素以及添加剂对材料辐射老化的影响。此外,还介绍了硅橡胶辐射老化的表征方法。希望本文通过对现有文献的详尽调研可更清楚地认识硅橡胶的辐射老化行为,为进一步预测其服役寿命提供有用的参考。Silicone rubber are widely used in engineering for their excellent properties.When exposed to highenergy rays or particles,such as existing in aerospace and nuclear power plant applications,silicones would age.The irradiation-induced crosslinking and radiolysis lead to decreasing of material properties and thus influencing the service lifetime.Many factors affect the aging behaviors and make it hardly to predict.This article reviews the recent research progresses in this field and summarizes the effects of absorbed dose,dose rate,environment factors,and additives on radiation aging of materials.In addition,the characterization,simulation and modeling of irradiationinduced aging are also discussed.The thorough survey of the current literatures offers useful guidance to predict lifetime of the silicones.

关 键 词：硅橡胶 辐照 老化 综述 

分 类 号：TL13[核科学技术—核能科学]