非离子两亲型水性环氧树脂及其乳液的制备与性能研究  

Preparation and Properties of Non-Ionic Amphiphilic Waterborne Epoxy Resin and Its Emulsion

作　　者：周典瑞 王伟翰 李天舒 张宝艳 ZHOU Dian-rui;WANG Wei-han;LI Tian-shu;ZHANG Bao-yan(Composite Technology Center,AVIC Manufacturing Technology Institute,Beijing 101300,China)

机构地区：[1]中国航空制造技术研究院复合材料技术中心,北京101300

出　　处：《塑料科技》2024年第3期72-76,共5页Plastics Science and Technology

摘　　要：为进一步提升自乳化环氧树脂体系的乳液稳定性和树脂的综合性能,使用十二烷基琥珀酸酐(DDSA)与聚乙二醇单甲醚和双酚A型环氧树脂反应,制备了两亲型自乳化环氧树脂,并与使用甲基六氢苯酐(MHHPA)和邻苯二甲酸酐(PA)的体系分别进行了对比。通过乳液粒径、离心处理及表面张力测试评价了水性环氧树脂乳液的稳定性,另外对各自乳化体系树脂的固化行为、热稳定性以及与不同纤维间的界面强度进行了研究。结果表明:DDSA的引入可使乳液的表面张力下降至37.22 mN/m,有效提升了乳液稳定性;该自乳化体系树脂与碳纤维间的微脱黏强度欠佳,但其与超高分子量聚乙烯纤维间的界面强度较MHHPA和PA体系更优,具有优异的综合性能。In order to further improve the emulsion stability and the intrinsic performance of self-emulsified epoxy resin,a novel amphipathic resin was synthesized from dodecylsuccinic anhydride(DDSA),methoxypolyethylene glycols and bisphenol-A epoxy.Similar systems based on different anhydrides including methyl hexahydrophthalic anhydride(MHHPA)as well as phthalic anhydride(PA)were prepared simultaneously for comparison.The stabilities of various emulsions were evaluated according to particle diameter,centrifugal stability and surface tension tests.Meanwhile,the curing behaviors,thermal resistances and interface properties between resins and diverse reinforcement fibers were also investigated.The results showed that introducing of DDSA could effectively enhance the stability of emulsion with the surface tension reducing to 37.22 mN/m.The microdebonding strength between the self-emulsifying resin system and carbon fiber is poor,but its interfacial strength with ultra-high molecular weight polyethylene fibers is better than that of the MHHPA and PA systems,and it has excellent overall performance.

关 键 词：十二烷基琥珀酸酐 自乳化 乳液 环氧树脂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]