水性环氧乳液/海泡石复合改性苯丙乳液涂层粘结性能研究  

Bonding performance of waterborne epoxy emulsion/sepiolite composite modified styrene-acrylic emulsion coating

作　　者：何丽红[1,2] 李青林 徐心硕 周超 李斯[1,2] He Lihong;Li Qinglin;Xu Xinshuo;Zhou Chao;Li Si(National and Local Joint Engineering Laboratory for Transportation and Civil Engineering Materials,Chongqing Jiaotong University,Chongqing 400074;School of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074;School of Civil Engineering,Chongqing Jiaotong University Chongqing,400074)

机构地区：[1]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,重庆400074 [2]重庆交通大学材料科学与工程学院,重庆400074 [3]重庆交通大学土木工程学院,重庆400074

出　　处：《化工新型材料》2024年第1期203-206,共4页New Chemical Materials

基　　金：重庆市教委科学技术重点研究项目(KJZD-K202200701);重庆交通大学研究生科研创新项目(2021S0052)。

摘　　要：采用物理共混法制备水性环氧乳液/海泡石复合改性苯丙乳液涂层,探讨了苯丙-水性环氧乳液配比,三乙醇胺、填料及乳化沥青掺量对涂层粘结强度的影响,同时考察了复合涂层的抗渗性和耐高低温性。结果表明,当苯丙乳液与水性环氧乳液的有效质量比为1∶2,三乙醇胺、海泡石和乳化沥青掺量分别为2%、3%、5%时,复合涂层粘结强度为3.54MPa,与钢板间具有较好的相容性,且不透水性和耐高低温性优良。Waterborne epoxy emulsion/sepiolite composite modified styrene-acrylic emulsion coating was prepared by physical blending method.The effects of styrene-acrylic-waterborne epoxy emulsion ratio,triethanolamine,filler and emulsified asphalt content on the bonding strength of the coating were investigated.At the same time,the impermeability and high and low temperature resistance of the composite coating were examined.The results showed that when the effective mass ratio of styrene-acrylic emulsion to waterborne epoxy emulsion was 1∶2,and the content of triethanolamine,sepiolite and emulsified asphalt were 2%,3% and 5%,respectively,the bonding strength of the prepared composite coating reached 3.54MPa.It exhibited good compatibility with the steel plate,and had excellent impermeability and high and low temperature resistance.

关 键 词：苯丙乳液 水性环氧树脂 共混改性 粘结强度 影响因素 

分 类 号：TQ633[化学工程—精细化工] U414[交通运输工程—道路与铁道工程]