CTBN改性EP宏观力学性能研究  

Study on macro-mechanical properties of CTBN modified EP

作　　者：杨俊东 杨津鹏 杨晋 王文智 路智敏[1] YANG Jundong;YANG Jinpeng;YANG Pu;WANG Wenzhi;LU zhimin(School of Chemical Engineering,Inner Mongolia University,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学化工学院,呼和浩特010051

出　　处：《内蒙古工业大学学报（自然科学版）》2022年第1期36-40,共5页Journal of Inner Mongolia University of Technology：Natural Science Edition

基　　金：国家自然科学基金项目(11962022)。

摘　　要：考察端羧基丁腈橡胶的添加对环氧树脂力学性能改善的影响规律.分别制作5phr、10phr、15phr、20phr、30phr端羧基丁腈橡胶改性环氧树脂的试样;然后对每组试样分别进行拉伸、弯曲、冲击等力学试验,通过分析试验结果,得出当端羧基丁腈橡胶添加量为15phr时,其力学性能最佳.使用SEM对其冲击试样断面进行表征,通过观察SEM图像,可以看出CTBN改性EP的机理为孔洞剪贴屈服机理.The effect of the addition of end-carboxylated NBR on the improvement of mechanical properties of epoxy resin is investigated in this study.First,specimens of 5phr,10phr,15phr,20phr and 30phr end-carboxylated nitrile rubber modified epoxy resin are made.Then,tensile,bending and impact mechanical tests are conducted on each group of specimens.The analysis of the test results indicates that the mechanical properties of epoxy resin are best when the addition amount of end-carboxylated nitrile rubber is 15phr,its mechanical properties are the best.The cross section of the impact sample was characterized by SEM.By observing the SEM image,it can be seen that the mechanism of CTBN-modified EP is the hole shearing yield mechanism.

关 键 词：环氧树脂 端羧基丁腈橡胶 力学性能 断面扫描电镜(SEM) 

分 类 号：TQ321[化学工程—合成树脂塑料工业]