摘要
剥离强度是3PE防腐层的关键性能指标,不同测试方法之间的差异及标准规定是否严谨将影响测试结果的重复性和再现性。针对国内外相关产品标准附录规定的剥离强度测试程序过于简单、不够严谨及各测试方法之间存在差异的问题,研究了剥离速度、剥离角度、测试温度、剥离距离及结果评价对剥离强度测试结果的影响,确定了各参数和操作的具体要求,并对3PE防腐层剥离强度的测试方式及对涂层的破坏形式研究提出了建议。基于以上研究,完成了NACE TM 21420-2018《多层聚烯烃涂层系统剥离强度测试方法》及SY/T 4113.2—2018《管道防腐层性能试验方法第2部分:剥离强度测试》的编写。
Peel strength is the key performance indicator for 3 PE coating,and the repeatability and reproducibility of peel strength test results will be significantly affected by the difference between different test methods and the preciseness of standards.Considering that the procedures of peel strength test specified in the appendixes of the current national and international product standards are too simple and not stringent enough with the test methods varying greatly,the effects of peeling rate,peeling angle,test temperature,peeling length and result evaluation on the results of peel strength test were studied,the value of the test parameters and the specific operating requirements were defined,and suggestions on peel strength test method and failure mode of 3 PE coating were put forward.Based on this research,Test method for measurement of peel strength of multilayer polyolefin coating systems(NACE TM 21420-2018)and pipeline coating test method-Part 2:Peel strength test(SY/T 4113.2-2018)were formulated.
作者
冯少广
李东阳
胡博
赵君
余东亮
周武龙
吴定勇
刘国豪
FENG Shaoguang;LI Dongyang;HU Bo;ZHAO Jun;YU Dongliang;ZHOU Wulong;WU Dingyong;LIU Guohao(Petro China Pipeline R&D Center//National Engineering Laboratory for Pipeline Safety;Petro China Southwest Pipeline Company;Yunnan Taian Engineering Technology Consulting Co.Ltd.)
出处
《油气储运》
CAS
北大核心
2020年第10期1165-1171,共7页
Oil & Gas Storage and Transportation
基金
中石油管道有限责任公司课题“3PE管道防腐层剥离机理及对策研究”,2016B-3107-0501。
