环氧树脂胶粘剂加速老化试验及贮存寿命评估  

Accelerated Aging Test and Storage Life Assessment for Epoxy Resin Adhesive

作　　者：佘祖新[1,2] 李茜 张凯 何建新[1] 王玲[1] 文邦伟[1] SHE Zu-xin;LI Qian;ZHANG Kai;HE Jian-xin;WANG Ling;WEN Bang-wei(Southwest Research Institute of Technology and Engineering,Chongqing 400039;Jiangjin Atmospheric Material Corrosion Field National Observation and Research Station,Jiangjin 402260)

机构地区：[1]西南技术工程研究所,重庆400039 [2]重庆江津大气环境材料腐蚀国家野外科学观测研究站,江津402260

出　　处：《环境技术》2021年第1期27-30,共4页Environmental Technology

摘　　要：某型环氧树脂胶粘剂材料拉伸剪切试样在130℃、160℃和170℃温度条件下开展加速老化试验,以拉伸剪切强度为老化特性指标,老化试验过程中拉伸剪切强度呈现下降趋势,将数据归一化处理后,基于Arrhenius模型进行贮存寿命评估分析,取70%性能保留率(拉伸剪切强度值7.5 MPa)为失效临界条件,预测25℃贮存寿命为30.9年。Accelerated aging test of an epoxy resin adhesive was conducted at three different temperatures of 130℃,160℃and 170℃.The tensile shear strength was taken as the aging characteristic index of the adhesive,the results indicated that the tensile shear strength showed a downward trend.After the data were normalized,and taking the 70%retention performance(tensile shear strength value 7.5 MPa)as the critical failure condition,the storage life of the epoxy resin adhesive was evaluated and analyzed based on Arrhenius model,the storage life at 25℃is predicted to be 30.9 years.

关 键 词：环氧树脂 胶粘剂 加速试验 寿命评估 

分 类 号：TQ430[化学工程] TV46[水利工程—水工结构工程]