天冬聚脲涂层体系的防腐蚀性能
Corrosion Resistance of Asparagus Polyurea Coating System
摘 要
制备了以天冬聚脲涂料为面漆的重防腐蚀涂层体系,开展了循环盐雾试验、氙灯老化加速试验及吸水率测试。通过形貌观察、能谱分析、电化学测试、涂层厚度及附着力测试等,研究了该涂层体系的防腐蚀性能及腐蚀老化规律。结果表明:天冬聚脲面漆配套以重防腐蚀底漆和中间漆,涂层的耐盐雾腐蚀和光老化性能优异,附着力良好,吸水率低,可有效抵御湿热盐雾大气环境影响,有效防护金属基体。
重防腐蚀
涂层
加速试验
湿热盐雾
asparagus polyurea
heavy anticorrosive
coating
acceleration test
hot and humid salt fog
Abstract
A heavy-duty anti-corrosion coating system with aspatagus polyurea coating as the top coat was prepared, and cyclic salt spray tests, xenon lamp aging acceleration tests, and water absorption tests were conducted. The anti-corrosion performance and corrosion aging behavior of the coating system with Tiandong polyurea coating as the top coat were studied through morphology observation, energy spectrum analysis, electrochemical testing, coating thickness and adhesion testing. The results showed that the Tiandong polyurea topcoat paired with a heavy-duty anti-corrosion primer and intermediate paint had excellent salt spray corrosion resistance and light aging performance, strong adhesion, small water absorption, and could effectively resist the impact of humid and hot salt spray atmospheric environment, effectively protect the metal substrate.
中图分类号 TG174.4 DOI 10.11973/fsyfh-202307007
所属栏目 试验研究
基金项目
收稿日期 2021/8/26
修改稿日期
网络出版日期
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引用该论文: WANG Honglun,YANG Hua,ZHANG Dongjiu,YANG Bo,TU Qiyong,CAI Hui. Corrosion Resistance of Asparagus Polyurea Coating System[J]. Corrosion & Protection, 2023, 44(7): 40
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参考文献
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【4】ARUNKUMAR T,SUNITHA S,THEERTHAGIRI J,et al. Effect of polyurea coating on corrosion resistance over mild steel and aluminium substrates for liquid storage applications[J]. Molecular Crystals and Liquid Crystals,2018,670(1):60-73.
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【6】ZUR E. Polyurea-the new generation of lining and coating[J]. Advanced Materials Research,2010,95:85-86.
【7】李桂群,侯瑞,胡国祥,等. 聚脲涂料发展及其应用[J]. 工程塑料应用,2019,47(9):163-168.
【8】张作华. 钢结构防腐新材料-天冬聚脲[J]. 涂层与防护,2020,41(10):28-30.
【9】王文杰,吴昊. 聚天门冬氨酸酯聚脲发展及其防腐应用[J]. 工程塑料应用,2019,47(8):140-143.
【10】何金文,黄顺礼,卿宁. 聚天冬氨酸酯聚脲的研究现状[J]. 2014(2):292-295,298.
【11】井晓菲,吕平,李文莉,等. 聚天冬氨酸酯聚脲研究进展及应用[J]. 现代涂料与涂装,2018,21(9):10-13,18.
【12】汤新颖,闫福安,周勇. 新型聚脲弹性涂料的制备及其性能研究[J]. 中国涂料,2020,35(3):43-48.
【13】YANG L,LU P. Performance of polyaspartic ester polyurea in marine engineering protection[J]. Applied Mechanics and Materials,2011,66/67/68:1533-1538.
【14】HUANG WEI BO,ZHANG J,LI XIN MAO,et al. Aging behavior of polyaspartic polyurea under salt-fog exposure studied by electrochemical impedance spectroscopy[J]. Advanced Materials Research,2012,455/456:760-764.
【15】刘郅媛. 聚天门冬氨酸酯聚脲涂层失效行为的EIS研究[D].北京:北京化工大学,2013.
【16】吕平,陈国华,黄微波. 聚天冬氨酸酯聚脲涂层加速老化行为研究[J]. 四川大学学报(工程科学版),2007,39(2):92-97.
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【22】国家质量监督检验检疫总局、中国国家标准化管理委员会. 色漆和清漆 涂层老化的评级方法:GB/T 1766-2008[S]. 北京:中国标准出版社,2008.
【23】Electrochemical impedance spectroscopy (EIS) on coated and uncoated metallic specimens-Part 2:Collection of data:ISO 16773-2[S].[s.n.]:ISO,2016.
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