聚脲在海管节点补口防腐涂层中的应用研究  

Study on Application of Polyurea in Field Joints Anti-corrosive Coating for Subsea Pipeline

作　　者：相政乐 张启发 赵利 赵岑 贾振 张祥 XIANG Zhengle;ZHANG Qifa;ZHAO Li;ZHAO Cen;JIA Zhen;ZHANG Xiang(CNOOC Energy Technology&Services Zhuhai Pipe Engineering Co.,Ltd.,Zhuhai,Guangdong 519000,China)

机构地区：[1]海油发展珠海管道工程有限公司,广东珠海519000

出　　处：《涂料工业》2024年第7期60-64,共5页Paint & Coatings Industry

摘　　要：为简化海管节点施工工艺,同时降低节点补口成本,开展了喷涂聚脲在节点补口防腐涂层中的适用性研究。以国内A公司和国外B公司的喷涂聚脲分别制备海管节点防腐涂层,并对涂层性能进行系统全面的分析研究。结果表明:聚脲涂层均表现出优异的力学性能、电绝缘性、耐水性及热处理后拉伸强度保持率,但是其与基材的界面黏结在阴极剥离试验后会出现失效的情况,同时2种涂层经盐、碱、酸处理后拉伸强度保持率也较差。In order to simplify the coating process and reduce the cost of field joints,the applicability of spraying polyurea in field joints was studied in the paper.The field joints anti-corrosive coating of subsea pipeline were prepared by using polyurea from A domestic company and B foreign company.A systematic and comprehensive analysis of the coating properties was studied.The results showed that both polyurea coating had excellent mechanical properties,electrical insulation,water resistence and tensile strength retention after heat treatment.But the interface bonding between them and the substrate failed after cathodic stripping,and the tensile strength retention rate of the two coatings after salt,alkali and acid treatment was poor.

关 键 词：聚脲 防腐涂层 海管 节点补口 

分 类 号：TQ635.2[化学工程—精细化工]