红外涂层耐盐水腐蚀性能的评测与分析
Testing and Analysis on the Salt Water Corrosion Resistance of Infrared Stealthy Coatings
史英俊 1邵春明 2王海连 2高艳林2
作者信息
- 1. 浙江晋巨化工有限公司
- 2. 浙江巨化技术中心有限公司:浙江衢州 324004
- 折叠
摘要
以三元乙丙橡胶(EPDM)和三元乙丙橡胶接枝马来酸酐(EPDM-g-MAH)为黏结剂,并分别添加质量分数为20%的铜粉颜料,制得低红外发射率的红外涂层,对红外涂层在盐水腐蚀的失效机制、电化学参数等方面进行了分析.结果表明:红外涂层因腐蚀而失效主要是由于铜粉因腐蚀生成了氯化亚铜(CuCl)造成其红外发射率升高引起的.EPDM经接枝改性后,增强了黏结剂与金属颜料间的相容性,降低了涂层的孔隙率,可以增强红外涂层的耐腐蚀性能.
Abstract
Using EPDM and EPDM grafted Maleic anhydride(EPDM-G-MAH)as binder,the infrared coating with low infrared emissivity was prepared by adding 20%copper powder pigment,and the failure mechanism and electrochemical parameters of the infrared coating in brine corrosion were analyzed.The results show that,the failure of infrared coatings due to corrosion is mainly caused by the increase in infrared emissivity caused by cuprous chloride(CuCl)formation of copper powder due to corrosion.The graft modification of EPDM enhances the compatibility between binder and metal pigment,reduces the porosity of coating,and enhances the corrosion resistance of infrared coating.
关键词
红外发射率/黏结剂/颜料/耐腐蚀性能/涂层Key words
infrared emissivity/adhesive/pigment/corrosion resistance/coating引用本文复制引用
出版年
2024
NETL
NSTL
万方数据