摘要
采用电化学交流阻抗(EIS)技术测量输油气管道常用外防腐层失效性的方法测量各类涂层在3%NaC l水溶液中不同时间段的阻抗图谱,分析对比相同条件其电化学参数及涂层吸水率的变化,最终对涂层在3%NaC l水溶液中失效可能性排序为:PP/PE胶带>单/双层FBE>无溶剂环氧>煤焦油瓷漆>环氧煤沥青>3PE.
A detecting method of external coatings for pipeline by EIS was introduced for oil and gas fields. The EIS change of different coatings was measured in 3% NaCl solution with time,electrochemical impedance spectra and the relevant parameters including the water absorbility of the coatings were analyzed and contrasted, accordingly the validity of the coatings will be accessed.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2008年第4期307-309,共3页
Corrosion Science and Protection Technology
基金
中国石油天然气集团公司埋地管道外防腐层失效及评价技术研究项目资助(2004)
关键词
管道
涂层
EIS
失效
pipeline
coating
EIS
inbalidation
作者简介
叶春艳（1977-），女，硕士，工程师，主要从事油气管道腐蚀与防护研究．Tel：0316—6085043 E—mail：dragonycy@163．com。
