SBS环氧化及其产物作为环氧固化体系增韧剂的研究  

Study on SBS epoxidation and its products as toughening agent for epoxy curing system

作　　者：陈勇 谭晓明 熊航行[1] 胡家玮 秦朝伟 李关敏 费会会 武光亚 李君 朱梦琴 宋锡飞 朱琼 谢洪泉[4] CHEN Yong;TAN Xiao-ming;XIONG Hang-xing;HU Jia-wei;Qin Chao-wei;LI Guan-min;FEI Hui-hui;WU Guang-ya;LI Jun;ZHU Meng-qin;SONG Xi-fei;ZHU Qiong;XIE Hong-quan(College of Chemical Engineering and Pharmacy,Jingchu University of Technology,Jingmen,Hubei 448000,China;Jingmen Green Chemical Technology Research Institute,Jingmen,Hubei 448000,China;Hubei BenxinEnvironmental Protection Technologies Inc,Wuhan,Hubei 430074,China;Department of Chemistry,HuazhongUniversity of Science and Technology,Wuhan,Hubei 430074,China)

机构地区：[1]荆楚理工学院化工与药学院,湖北荆门448000 [2]荆门化工绿色技术研究院,湖北荆门448000 [3]湖北本心环保科技股份有限公司,湖北武汉430074 [4]华中科技大学化学系,湖北武汉430074

出　　处：《粘接》2018年第11期24-28,共5页Adhesion

基　　金：荆楚理工学院引进人才启动项目QDB201604;荆楚理工学院大学生创新创业训练项目KC2016012和KC2017010;湖北省教育厅科学研究计划指导性项目B2017250;荆门市科技计划项目2018YFB048;湖北省大学生创新创业训练项目201611336016和201711336006

摘　　要：在相转移催化剂的存在下,将苯乙烯-丁二烯-苯乙烯(SBS)嵌段共聚物进行环氧化改性,并引入环氧极性基团,同时对该产物(ESBS)应用于双酚A型环氧树脂(E-44)/脂肪胺(DMDC)的固化体系进行增韧改性。结果表明,当SBS质量浓度为130 g/L、m(甲酸)/m(SBS)=10%、n(过氧化氢)/n(甲酸)=1、m(PEG-400)/m(SBS)=3%、反应温度为70℃和反应时间为150 min时,SBS环氧化反应较佳,可得到环氧基质量分数为8.2%的ESBS。进一步添加2%(质量分数)ESBS到E-44/DMDC环氧固化体系中,能有效提高该固化体系的力学性能,拉伸强度增加37.0%,弯曲强度增加17.4%。In the presence of phase transfer catalyst, the styrene-butadiene-styrene （SBS） block copolymer was epoxidized, and the polar epoxy groups were introduced. The product （ESBS） was used to toughen the curing system of bisphenol A epoxy resin （E-44）/aliphatic amine （DMDC）. The results showed that the optimum conditions for epoxidation of SBS were as follows： the mass concentration of SBS was 130 g/L, m（formic acid）/m（SBS）=10%, n（hydrogen peroxide）/n（formic acid）=1, m（phase transfer catalyst）/m（SBS） = 3%, the reaction temperature was 70℃, and the reaction time was 150 min. ESBS with 8.2 wt% of epoxy groups was obtained. Further addition of 2 wt% ESBS to the E-44/DMDC epoxy curing system can effectively improve the mechanical properties of the curing system, the tensile strength increased by 37%, the flexural strength increased by 17%.

关 键 词：SBS环氧化 环氧树脂 增韧剂 增容 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]