富锌-聚氨酯重防腐涂料盐雾划痕及低温试验条件下腐蚀结果研究  

Study on salt spray scratches and corrosion results of zinc rich polyurethane heavy duty anticorrosive coatings under low temperature test conditions

作　　者：韩悦 王佳妮 高慧妍 陆姗姗 HAN Yue;WANG Jia-ni;GAO Hui-yan;LU Shan-shan(Shenyang University of Science and Technology,ShenYang 110000,China)

机构地区：[1]沈阳科技学院,辽宁沈阳110000

出　　处：《聚酯工业》2023年第6期16-18,共3页Polyester Industry

基　　金：2023年度沈阳科技学院科学研究项目(面上项目)“富锌/丙烯酸聚氨酯配套体系涂层制备及耐腐蚀性的问题及对策研究”(项目编号:MS-2023-12)。

摘　　要：本文简要介绍了海工重防腐涂料ISO12944-6中的实验室测试方法。分别测试讨论了油性富锌底漆、油性富锌底漆+云铁中间漆、油性富锌底漆+云铁中间漆+丙烯酸聚氨酯面漆3种不同配套涂层体系的盐雾划痕和低温性能的试验方法以及结果。结果表明:循环老化的腐蚀方式主要为划痕边界处盐雾介入腐蚀,低温导致的物理作用影响较小;并且配套体系中油性富锌底漆+云铁中间漆+丙烯酸聚氨酯面漆的耐腐蚀性效果最好。This article briefly introduces the laboratory testing methods of marine heavy-duty anti-corrosion coatings IS012944-6.The test methods and results of salt spray scratch and low-temperature performance of three different matching coating systems,namely oil-based zinc rich primer,oil-based zinc rich primer+cloud iron intermediate paint,oil-based zinc rich primer+cloud iron intermediate paint+acrylic polyurethane top paint,were tested and discussed.The results show that the main corrosion mode of cyclic aging is salt spray intervention corrosion at the scratch boundary,and the physical effect caused by low temperature is relatively small;And in the supporting system,the corrosion resistance effect of oily zinc rich primer,cloud iron intermediate paint,and acrylic polyurethane topcoat is the best.

关 键 词：海工重防腐涂料 ISO12944-6 盐雾 循环老化 

分 类 号：TG174.4[金属学及工艺—金属表面处理]