Abstract: This article has deseribed an epoxy primer for the dry film installation technology applied to the joint coating by three-layer polyethylene heat shrinking sleeve, focusing on discussion of the glass transition temperature of film-forming substances of the primer, and comparison of the cathodic disbandment performance with the similar products.

Key words: heat shrinking, pipeline, 3PE coating, joint coating, primer, cathodic disbandment

摘要： 针对三层聚乙烯防腐层热收缩带补口防腐技术干膜安装的新工艺,研究了配套环氧底漆,着重讨论了配套底漆成膜物质的玻璃化温度,并对其阴极剥离性能与同类产品进行了比较。

关键词: 热收缩, 管道, 3PE防腐层, 补口防腐, 底漆, 阴极剥离