互穿网络漆中防锈颜料对涂层耐蚀性的影响  

Influences of Anti-rust Pigments on Corrosion Resistance of Interpenetrating Networks Paint Coating for Automobile Chassis

作　　者：马少妹[1,2] 杨博[1] 陈燕[1] 徐家燕 梁建新 袁爱群[1] 

机构地区：[1]广西民族大学化学化工学院化学与生物转化过程新技术重点实验室,广西南宁530006 [2]广西林产化学与工程重点实验室,广西南宁530006 [3]广西柳州市造漆厂,广西柳州545005

出　　处：《电镀与精饰》2013年第5期27-31,共5页Plating & Finishing

基　　金：广西科学研究与技术开发计划项目(桂科攻11107013-6)

摘　　要：研究了互穿网络汽车底盘漆中不同防锈颜料配方对涂层防腐蚀性能的影响,采用交流阻抗测试、盐水浸泡、划痕试验、扫描电镜观察和能谱测试对配方中6种颜料的防腐性能进行评价,并对涂层的失效过程进行分析。测试结果表明,磷酸锌性能优于其他的颜料,更适合用于互穿网络汽车底盘漆中,6种防锈颜料的防腐蚀性能顺序为:磷酸锌>m(三聚磷酸铝)∶m(钼酸锌)∶m(磷酸锌)=7∶2∶2>m(三聚磷酸铝)∶m(钼酸锌)=7∶2>三聚磷酸铝>钼酸锌>复合磷酸锌,磷酸锌的片层结构可以增加漆膜早期屏蔽性能。Influences of different anti-rust pigments formulations on corrosion resistance of interpenetrating networks paint coating for automobile chassis were studied. Corrosion resistance of the six pigments in the formulation were evaluated by electrochemical impedance spectra, saline soak, scratch test, scan- ning electron microscopy （SEM） and energy spectrum. Failure process of the coating was also analyzed. Results showed that zinc phosphate was superior to the other pigments for the paint. Sequence of antirust performance of these six pigments was found as following ： zinc phosphate 〉 aluminium tripolyphosphate ： zinc molybdate ： zinc phosphate = 7： 2： 2 〉 aluminium tripolyphosphate ： zinc molybdate = 7： 2 〉 aluminium tripolyphosphate 〉 zinc molybdate 〉 composite zinc phosphate. Lamellar structure of zinc phosphate could efficiently enhance early shielding property of the paint film.

关 键 词：汽车底盘漆 防锈颜料 互穿网络 涂层耐蚀性 

分 类 号：TQ630.7[化学工程—精细化工]