水性环氧防腐涂料的制备与性能研究  

Preparation and performance study of waterborne epoxy anticorrosive coating material

作　　者：石亚军[1] 陈中华[1,2] 余飞[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510641 [2]广东省特种涂料工程技术研究开发中心,广东广州510520

出　　处：《电镀与涂饰》2009年第4期45-49,共5页Electroplating & Finishing

基　　金：广东省科技攻关课题(2006B14701005)

摘　　要：从4种不同的体系中优选出了高性能的水性环氧乳液及固化剂作为水性防腐涂料的成膜物质。采用傅立叶变换红外光谱考察了树脂与固化剂不同配比时涂层的组成,研究了水性环氧树脂及固化剂不同配比对涂层性能的影响,确定了水性环氧树脂乳液和固化剂的最佳质量比为2∶1。正交试验结果表明,当复合铁钛粉、铁红和滑石粉的质量比为1∶1∶1.5时,涂层具有较好的性能;在此配比下,研究了颜填料体积浓度(PVC)对涂层性能的影响,采用扫描电镜考察了不同PVC的涂层的截面形貌。结果发现,当PVC为47.7%时,涂层具有最佳性能。A high-performance waterborne epoxy emulsion and a curing agent were selected as film forming materials of waterborne anticorrosive coating material from four types of coating system. The coating compositions with different ratios of waterborne epoxy resin to curing agent were studied by Fourier transform infrared spectroscopy. The effect of the ratio of waterborne epoxy resin to curing agent on coating performances was discussed. The optimal mass ratio of waterborne epoxy resin emulsion to curing agent was confirmed as 2：1. The coating has good performance when the mass ratio of Fe-Ti composite powder to iron red to talcum powder is 1：1 ： 1.5 based on the orthogonal test. The effect of PVC on coating performances was examined. The sectional morphologies of the coating with different PVC values were observed by scanning electron spectroscopy at the above-mentioned conditions. The results showed that the optimal coating performance was obtained at a PVC of 47.7%.

关 键 词：水性防腐涂料 环氧树脂 乳液 复合铁钛粉 铁红 颜填料体积浓度 红外光谱 截面形貌 

分 类 号：TU561.67[建筑科学—建筑技术科学]