冯亚菲,朱玉琴,苏艳,代璐,李佳蒙,龙仕腾.2种防护涂层体系在湿热海洋环境下防护性能的劣化规律研究[J].装备环境工程,2022,19(12):73-81. FENG Ya-fei,ZHU Yu-qin,SU Yan,DAI Lu,LI Jia-meng,LONG Shi-teng.Degradation Law of Two Kinds of Protective Coating Systems in Hot and Humid Marine Atmospheric Environment[J].Equipment Environmental Engineering,2022,19(12):73-81.
2种防护涂层体系在湿热海洋环境下防护性能的劣化规律研究
Degradation Law of Two Kinds of Protective Coating Systems in Hot and Humid Marine Atmospheric Environment
  
DOI:10.7643/issn.1672-9242.2022.12.012
中文关键词:  自然暴露试验  涂层劣化分析  防护能力中图分类号:TG174.4  TQ638 文献标识码:A 文章编号:1672-9242(2022)12-0073-09
英文关键词:natural exposure test  coating degradation analysis  protection ability
基金项目:
作者单位
冯亚菲 中国人民解放军92228部队,北京 100072 
朱玉琴 西南技术工程研究所,重庆401329;环境效应与防护重庆市重点实验室,重庆 401329 
苏艳 西南技术工程研究所,重庆401329;环境效应与防护重庆市重点实验室,重庆 401329 
代璐 西南技术工程研究所,重庆401329;环境效应与防护重庆市重点实验室,重庆 401329 
李佳蒙 西南技术工程研究所,重庆401329;环境效应与防护重庆市重点实验室,重庆 401329 
龙仕腾 西南技术工程研究所,重庆401329;环境效应与防护重庆市重点实验室,重庆 401329 
AuthorInstitution
FENG Ya-fei No.92228 PLA, Beijing 100072, China 
ZHU Yu-qin Southwest Institute of Technology and Engineering, Chongqing 401329, China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing 401329, China 
SU Yan Southwest Institute of Technology and Engineering, Chongqing 401329, China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing 401329, China 
DAI Lu Southwest Institute of Technology and Engineering, Chongqing 401329, China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing 401329, China 
LI Jia-meng Southwest Institute of Technology and Engineering, Chongqing 401329, China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing 401329, China 
LONG Shi-teng Southwest Institute of Technology and Engineering, Chongqing 401329, China;Chongqing Key Laboratory of Environmental Effects and Protection, Chongqing 401329, China 
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中文摘要:
      目的 研究2种防护涂层体系在湿热海洋环境下自然暴露3 a的防护性能劣化规律。方法 确定试验件为钢–铝(钢)螺接连接件,试验地点为海南万宁,并按周期测得不同暴露时间下涂层A和涂层B的外观形貌、色差、光泽度、表面傅里叶红外光谱、电化学阻抗的相关数据。通过对比分析测试结果,判断2种涂层在不同暴露时间下的劣化程度,并最终得到其劣化规律。结果 涂层A自然暴露1 a老化严重,紧固件区域涂层剥落,平板区域失光率约为75%,阻抗模量降低5个数量级,色差ΔE*为5(轻微变色),涂层有机基团老化降解严重。涂层B自然暴露2 a,老化较严重,紧固件区域涂层剥落、生锈,平板失光率约为20%,阻抗模量降低2个数量级,色差ΔE*为11(严重变色),涂层有机基团轻微老化降解。结论 对于螺钉连接结构,连接区域不仅更容易被腐蚀,而且增加了附近平板区域的不一致性。涂层体系B的保护能力优于涂层体系A,涂层体系B的有效保护时间约为2 a,而涂层体系A则不到1 a。
英文摘要:
      The work aims to study the degradation law of two kinds of protective coatings after 3 years of natural exposure in hot and humid marine atmospheric environment. Steel and aluminum (steel) connection fittings were selected as test samples and Wanning of Hainan was determined as the test site. The appearance, color difference, luster, surface Fourier transform infrared spectrum and electrochemical impedance of coatings A and B for different exposure time were measured periodically. Through comparison and analysis of the test results, the degradation degree of the two coatings for different exposure time was judged, and the degradation law was finally obtained. The coating A was severely aged after one year of natural exposure:the coating in fastener area was peeled off, the optical loss rate in plate area was about 75%, the impedance modulus was reduced by five orders of magnitude, the color difference ΔE was 5 (slight discoloration), and the organic groups in the coating were seriously aged and degraded. After two years of natural exposure, the coating B was seriously aged:the coating in the fastener area was spalling and rusting, the plate optical loss rate was about 20%, the impedance modulus was reduced by two orders of magnitude, the color difference ΔE was 11 (severe discoloration), and the organic groups of the coating were slightly aged and degraded. For screw connection structure, the connection area is not only easier to be corroded, but also increases the inconsistency of the adjacent plate area. The protection ability of coating system B is better than that of coating system A. The effective protection time of coating system B is about two years, while that of coating system A is less than one year.
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