DOPO-VTS键合改性环氧树脂的制备与性能  

Preparation and property of DOPO-VTS bonded epoxy resin

作　　者：彭恩凯 黄丽敏[1] 李宝铭[1] 

机构地区：[1]福州大学材料科学与工程学院,福州350108

出　　处：《化工新型材料》2016年第11期79-81,共3页New Chemical Materials

基　　金：国家自然科学基金项目(61205182);福州大学本科生科研训练计划项目(20255)

摘　　要：以含磷有机硅(DOPO-VTS)作为改性剂对环氧树脂(E51)进行化学接枝改性,制备不同含量的DOPO-VTS键合改性E51。核磁共振氢谱(~1H-NMR)、红外吸收光谱(IR)、环氧当量(EEW)和差式扫描量热法(DSC)的测试结果证明DOPO-VTS成功接枝到E51分子的主链。利用甲基四氢苯酐对改性E51进行固化,考察DOPO-VTS的含量对固化后改性E51力学性能的影响。当E51与DOPO-VTS质量配合比为100∶10时,改性E51的拉伸强度达到最大值为78.18MPa,较未改性E51的63.27MPa提高约23.57%;改性E51的冲击强度为19.86kJ/m^2,较未改性E51的18.15kJ/m^2提高约9.42%。DOPO-VTS bonded epoxy resins （E51） with different contents of DOPO-VTS were prepared by chemical graft modification method with the organic silicone containing phosphorus （DOPO-VTS） as modifier. It was demonstrated that DOPO-VTS was successfully grafted to the main chain of E51 by 1 H-NMR,IR,EEW and DSC. MeTHPA was used as hardener to cure modified E51 and the influences of DOPO-VTS content on the mechanical properties of cured modified E51 were investigated. When the mass ratio of E51 to DOPO-VTS was 100：10, the tensile strength of modified ES1 obtained its maximum value of 78.18MPa increased by 23. 57% compared with that of the pristine E51 of 63.27MPa. The impact strength reached 19.86kJ/m2 ,which almost increased 9.42% compared with that of the pristine E51 of 18.15kJ/mz.

关 键 词：DOPO-VTS 环氧树脂 力学性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]