钢质管道熔结环氧粉末涂层拉拔法附着力评价研究
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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≥20 MPa.
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≥20 MPa.
引文
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[4]International Organization for Standardization.ISO21809.2:2014(E)Petroleum and natural gas industries--External coatings for buried or submerged pipelines used in pipeline transportation systems--Part 2:Single layer fusion-bonded epoxy coatings[S].Switzerland:ISO,2014.
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[6]张其滨,刘金霞,赫连建峰等.SY/T 0442-2010钢制管道熔结环氧粉末内防腐层技术标准[S].北京:石油工业出版社,2010.
[7]American Society for Testing and Materials.ASTM D4541-2017 Standard test method for pull-off strength of coatings using portable adhesion testers[S].West Conshohocken,PA:ASTMInternational,2017.
[8]韩冰,张锡年,杨坤等.单面涂层钢板法测定熔结环氧粉末涂层吸水率研究[J].全面腐蚀控制,2017,31(12):7-9.
[9]杨海,陆卫中,李京等.一种环氧粉末涂层的吸水性研究[J].腐蚀科学与防护技术,2014,26(5):420-424.
[10]丁新艳,刘新群,谭帅霞等.涂膜附着力测试的探讨与建议[J].涂料工业,2014,44(2):60-63.
[2]师立功.管道用熔结环氧粉末涂层长效防腐的关键[J].涂料工业,2017(2):73-80.
[3]Canadian Standards Association.CSA Z245.20-2014 Series-2014Plant-applied external coatings for steel pipe[S].Mississauga,Ontario,Canada:CSA,2015.
[4]International Organization for Standardization.ISO21809.2:2014(E)Petroleum and natural gas industries--External coatings for buried or submerged pipelines used in pipeline transportation systems--Part 2:Single layer fusion-bonded epoxy coatings[S].Switzerland:ISO,2014.
[5]张瑛,焦如义.SY/T 0315-2013钢制管道熔结环氧粉末外涂层技术规范[S].北京:石油工业出版社,2013.
[6]张其滨,刘金霞,赫连建峰等.SY/T 0442-2010钢制管道熔结环氧粉末内防腐层技术标准[S].北京:石油工业出版社,2010.
[7]American Society for Testing and Materials.ASTM D4541-2017 Standard test method for pull-off strength of coatings using portable adhesion testers[S].West Conshohocken,PA:ASTMInternational,2017.
[8]韩冰,张锡年,杨坤等.单面涂层钢板法测定熔结环氧粉末涂层吸水率研究[J].全面腐蚀控制,2017,31(12):7-9.
[9]杨海,陆卫中,李京等.一种环氧粉末涂层的吸水性研究[J].腐蚀科学与防护技术,2014,26(5):420-424.
[10]丁新艳,刘新群,谭帅霞等.涂膜附着力测试的探讨与建议[J].涂料工业,2014,44(2):60-63.