文献类型：期刊文献

中文题名：活性稀释剂对环氧树脂结构和性能的影响

英文题名：Effects of reactive diluents type on chemical structure and property of epoxy resin system

作者：李山剑[1];邓双辉[2];冯云龙[2];刘超凡[1];刘坐镇[1,2]

机构：[1]华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室,上海200237;[2]华东理工大学华昌聚合物有限公司上海防腐蚀新材料工程技术研究中心,上海200237

年份：2016

卷号：36

期号：6

起止页码：604

中文期刊名：河北大学学报（自然科学版）

外文期刊名：Journal of Hebei University(Natural Science Edition)

收录：CSTPCD;;北大核心:【北大核心2014】；

基金：上海市重大科技攻关项目(12dz1100401);上海工程技术研究中心能力提升项目(13DZ2280900)

语种：中文

中文关键词：环氧树脂;活性稀释剂;反应活性;交联结构;性能

外文关键词：epoxy resin;diluent;chemical reactivity;network;property

摘要：选用3种具有不同分子结构和官能度的缩水甘油醚——1,4-丁二醇二缩水甘油醚(BDDGE)、苯基缩水甘油醚(PGE)和癸基缩水甘油醚(DGE)作为活性稀释剂,通过黏度、DSC、热重分析和万能实验机等方法考察了其对双酚A环氧-胺固化体系的反应活性、交联网络结构和性能的影响.结果表明:芳香类稀释剂的加入,对环氧-胺固化体系的反应活性影响不大甚至有所提升,且固化物的强度和模量提高,韧性降低;而脂肪族稀释剂则明显降低了固化体系的反应活性,随着脂肪链长度的增加,固化物的强度和模量下降,韧性提高;3种稀释剂的加入均降低了环氧体系的耐热性能.
The chemical reactivity and network and properties after curing of diglycidyl ether of bisphenol A（DGEBA）/amine systems were studied using viscosity analysis,different scanning calorimetry analysis（DSC）,thermogravimetric analysis and universal testing machine.using three different diluents,including 1,4-butanediol diglycidyl ether,phenyl glycidyl ether and decylglycide ether.The result showed that the addition of aromatic diluents PGE into DGEBA curing system accelerated the curing reaction to a certain extent,resulted in enhancement of tensile and flexural strength and modulus,but led to a reduction of both elongation and the impact strength.However,the addition of the other two diluents had the contrary effects on these properties and the DGE which had the longest fatty chain segment had the most obvious effects.All tested modified epoxy compositions had lower thermal stability than unmodified epoxy resin.