颜填料体积浓度对水性环氧导静电防腐蚀涂层性能的影响  

Effect of pigment volume concentration on properties of waterborne antistatic anticorrosive epoxy coating

作　　者：陈中华[1] 唐英[1] 余飞[1] 苏国徽[1] 陈海洪[2] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [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：《化工学报》2008年第10期2568-2572,共5页CIESC Journal

基　　金：国家自然科学基金项目(50073006);广东省科技攻关课题(2006B14701005)~~

摘　　要：考察了颜填料体积浓度(PVC)对水性环氧导静电防腐蚀涂料涂层导静电性能和防腐蚀性能的影响,运用X射线能谱(EDX)分析了导电填料的元素组成,采用电化学阻抗谱(EIS)、扫描电镜(SEM)等手段对不同颜填料体积浓度的涂层进行了性能测试及表征,根据不同颜填料体积浓度涂层的物理机械性能、盐水浸泡实验结果和电化学阻抗谱分析,确定该水性环氧导静电防腐蚀涂料的最佳颜填料体积浓度为35%。The effect of pigment volume concentration （PVC） on the antistatic and anticorrosive properties of waterborne antistatic-anticorrosive epoxy coatings was studied. The element components of conductive pigments were-analyzed by X-ray energy dispersive spectrometer （EDX）, and the protective properties and morphology of coatings with different PVCs were characterized by electrochemical impedance spectroscopy （EIS） and scanning electron microscope （SEM） respectively. The optimal PVC of this waterborne antistatic anticorrosive epoxy coating was determined as 35% based on the results of the tests of mechanical, physical and corrosion resisting performance, and the analysis of EIS. The results showed that the corrosion-resisting performance of coatings improved at first with increasing PVC and then decreased after PVC exceeded 35% in the range of PVC from 25%to 45%.

关 键 词：颜填料体积浓度 电化学阻抗谱 水性环氧涂层 导静电 防腐蚀 

分 类 号：TG174.46[金属学及工艺—金属表面处理]