管道用聚脲基氧化铁红防腐涂料的制备  

Preparation of polyurea-based iron red anticorrosive coating for pipelines

作　　者：王鑫蕊 刘立柱[1,2] 张笑瑞[1,2] 翁凌[1,2] 朱兴松[1] WANG Xinrui;LIU Lizhu;ZHANG Xiaorui;WENG Ling;ZHU Xingsong(School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin,Heilongjiang 150040,China;Key Laboratory of Engineering Electrolytes of Ministry of Education,Harbin University of Science and Technology,Harbin,Heilongjiang 150080,China)

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040 [2]哈尔滨理工大学工程电解质教育部重点实验室,黑龙江哈尔滨150080

出　　处：《江苏大学学报（自然科学版）》2021年第4期473-477,484,共6页Journal of Jiangsu University：Natural Science Edition

摘　　要：针对地下管道常用的氧化铁红防腐涂料存在溶剂挥发、固化干燥速度慢等问题,以聚天门冬氨酸酯聚脲为基体,氧化铁红为填料,制备聚脲基氧化铁红防腐涂料.采用红外测试的方法对聚脲结构进行表征;通过试验研究聚脲基氧化铁红防腐涂料的耐盐雾时间、电化学工作站工作情况等,对试样的耐腐蚀性能进行探讨.试验结果表明:所制备的聚天门冬氨酸酯聚脲适合刷涂操作;当聚脲基氧化铁红防腐涂料中的氧化铁红质量分数为10%时,耐盐雾时间可达260 h,最大腐蚀电位为-0.8876 V,最小腐蚀电流密度为2.608×10-5 A·cm-2.To solve the problems of solvent volatilization and slow curing of commonly used iron oxide red anticorrosive coatings for underground pipelines,polyaspartic acid polyurea was used as matrix with iron oxide red as pigment filler to prepare polyurea anticorrosive coatings.FT-IR test was used to characterize the structure of polyurea,and the anticorrosive properties of coating were characterized by salt spray resistance time and electrochemical test.The results show that the prepared polyaspartic acid polyurea is suitable for coating application.The polyurea anticorrosive coating has excellent anticorrosive properties.When the iron oxide red content is 10%,the salt spray resistance time can reach 260 h,and the maximum corrosion potential is-0.8876 V with the minimum corrosion current density of 2.608×10-5 A·cm-2.

关 键 词：聚脲 氧化铁红 复合材料 防腐 涂料 

分 类 号：TQ630.1[化学工程—精细化工]