植酸对带锈涂装环氧涂层防腐蚀性能的影响  

Effect of Phytic Acid on Corrosion Performance of Epoxy Coating on Rust Q235 Carbon Steel

作　　者：游仲[1,2] 张颖君[1] 邓静伟[3] 杨青松 邵亚薇[1] 王艳秋[1] 孟国哲[1] 

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院 [2]重庆市特种设备检测研究院 [3]国网江西省电力科学研究院 [4]91872部队湛江研究室

出　　处：《腐蚀科学与防护技术》2015年第2期183-187,共5页Corrosion Science and Protection Technology

摘　　要：利用电化学阻抗谱(EIS)、附着力测试等测试手段对清漆喷砂涂层,带锈清漆涂层以及不同植酸含量的带锈涂层的干湿态附着力和耐腐蚀等性能进行了评价。结果表明,添加植酸明显改善了带锈涂装涂层的防腐蚀性能。植酸的添加提高了涂层的附着力,增强了涂层屏蔽作用。此外,植酸还具有缓蚀作用,减缓了金属界面的腐蚀。综合评定植酸添加量为3%时,带锈涂层防腐蚀性能较好。Epoxy coatings with different additives of phytic acid were applied on rust and sand-blated Q235 carbon steels respectively. The adhesive strength and corrosion perfromance of these coatings were studied by means of adhesion measurement and electrochemical impedance spectroscopy(EIS). The results showed that the adhesive strength, corrosion resistance and the barrier effectiveness of the epoxy based coatings could be enhanced by the addition of phytic acid in the epoxy varnish. Moreover, phytic acid could inhibit the corrosion of the metal beneath the coating. The coating containing 3% phytic acid had the best corrosion perfromance.

关 键 词：植酸 带锈涂装 环氧涂层 防腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]