复合材料科学与工程Issue(2)：82-90,9.DOI:10.19936/j.cnki.2096-8000.20250228.011
硅烷改性氧化石墨烯增韧乙烯基酯树脂
Toughening vinyl ester resin by silane-modified graphene oxide
摘要
Abstract
Vinyl ester resin,a class of general thermosetting polymers,are widely used in various industrial ap-plications.However,cured vinyl ester resins exhibit high cross-linking density,making them brittle and prone to cracking under impact loads.In this work,silane coupling agent(KH570)was grafted on the surface of graphene oxide(GO)through a one-step reaction to obtain modified GO(m-GO).Microscopic examination showed that m-GO presented improved dispersibility in the vinyl ester resin matrix compared with unmodified GO.Accordingly,m-GO exhibits a superior toughening effect on vinyl ester resins.Compared with the neat vinyl ester resin,the addition of 0.4wt%m-GO gives 40%and 32%enhancement in critical stress intensity factor(KⅠC)and the critical strain en-ergy release rate(GⅠC),respectively.Moreover,the addition of m-GO has almost no impact on the glass transition temperature and thermal stability of vinyl ester resins.关键词
乙烯基酯树脂/增韧改性/氧化石墨烯/硅烷偶联剂/复合材料Key words
vinyl ester resins/toughening modification/graphene oxide/silane coupling agent/composite ma-terial引用本文复制引用
杨瑞瑞,王雅婷,冉晓璐,刘万双..硅烷改性氧化石墨烯增韧乙烯基酯树脂[J].复合材料科学与工程,2025,(2):82-90,9.基金项目
科工局基础科研项目(JCKY2022206A010) （JCKY2022206A010）
