非离子型水性环氧树脂乳液的研制及性能研究  

Study on preparation and property of non-ionic waterborne epoxy resin emulsion

作　　者：朱洪洲[1] 田春玲[1] 何丽红[1] 谷雨[2] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074 [2]同济大学道路与交通工程教育部重点实验室,上海201804

出　　处：《化工新型材料》2016年第11期226-228,共3页New Chemical Materials

基　　金：交通运输部建设科技项目(2014318346140);重庆交通大学交通土建工程材料国家地方联合工程实验室开放基金项目(LHSYS-2013-008)

摘　　要：采用环氧树脂E-51与不同分子质量的聚乙二醇(PEG)反应合成一系列高分子非离子型环氧树脂乳化剂,并采用相反转法制备水性环氧树脂乳液,考查了PEG分子质量、E-51与PEG摩尔比、反应时间、乳化剂用量及乳化条件对水性环氧树脂乳液的黏度、稳定性、粒径的影响。结果表明:以过硫酸钾为引发剂,n(E-51)∶n(PEG-2000)=1∶1,在180℃下反应4h合成的乳化剂具有较好的乳化效果;乳化剂用量为20%,乳化温度60℃,分散机转速为3000r/min时,乳液粒径可达1.026μm且分布较窄,乳液黏度适中,具有较好的离心稳定性和储存稳定性。A series of polymeric non-ionic emulsifiers were prepared by polyethylene glycol（PEG） with different mo- lecular weight and epoxy resin（E-51）,phase-inversion emulsification technique were used to prepare the waterborne epoxy resin emulsion. Effects of molecular weight of PEG, mole ration of E-51 and PEG, reaction time, the amount of emulsifier and emulsification process on the viscosity, stability and particle size of emulsion were investigated. Results showed that the emulsifier synthesized by E-51 and PEG-2000 at 180℃ for 4h （the mole ratio was 1 ： 1） and used potassium persulfate as the initiator had good emulsifying effect. The amount of emulsifier was 20 %, the emulsifying temperature was 60℃, and the rotate speed of disperser was 3000r/min,the emulsion particle size can reach 1. 026μm and its distribution was narrow. The emulsion viscosity was moderate,and its centrifugal stability and storage stability were both good.

关 键 词：非离子乳化剂 水性环氧树脂乳液 相反转法 粒径 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]