摘要
采用拉拔法对不同浸泡温度、浸泡时间的熔结环氧粉末涂层进行附着力性能测试,并与撬剥评级法进行比对。结果表明:拉拔法评价涂层附着力具有直观、量化、可反映涂层附着力变化趋势的优点;FBE拉拔法附着力评价测试条件为:Tg≤115℃的FBE涂层:浸泡温度为80℃,浸泡时间28d,Tg>115℃的FBE涂层:浸泡温度为95℃,浸泡时间28d;附着力性能评价指标为≥20MPa。
The adhesion properties of fused epoxy powder coatings on steel pipes with different immersion temperatures and time were tested by pull-off test and compared with the method of pryingpeeling grading.The results show that the pull-off test has the advantages of intuitionistic,quantitative and reflecting the change trend of coating adhesion.The test conditions of pull-off test are as follows:as Tg≤115℃,immersion temperature:80℃,immersion time:28 days;as Tg>115℃,immersion temperature:95℃,immersion time:28 days.The performance evaluation index≥20MPa.
作者
韩冰
刘杨宇
毛天宇
HAN Bing;LIU Yang-yu;MAO Tian-yu(CNPC Engineering Technology Research Co.,Ltd.Tianjin 300451,China)
出处
《全面腐蚀控制》
2019年第3期42-45,共4页
Total Corrosion Control
关键词
熔结环氧粉末涂层
附着力
拉拔法
评价
fusion bonded epoxy powder coating
adhesion
pull-off test
evaluation
