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基于单宁酸负载的自预警-自修复双重功能防腐涂层

马菱薇 杨雪婷 郑凯宁 王金科 王悦 杨昊

马菱薇, 杨雪婷, 郑凯宁, 王金科, 王悦, 杨昊. 基于单宁酸负载的自预警-自修复双重功能防腐涂层[J]. 材料开发与应用, 2024, 39(2): 95-105.
引用本文: 马菱薇, 杨雪婷, 郑凯宁, 王金科, 王悦, 杨昊. 基于单宁酸负载的自预警-自修复双重功能防腐涂层[J]. 材料开发与应用, 2024, 39(2): 95-105.
MA Lingwei, YANG Xueting, ZHENG Kaining, WANG Jinke, WANG Yue, YANG Hao. Self-Reporting and Self-Healing Dual Functional Anticorrosive Coating based on Tannic Acid Additives[J]. Development and Application of Materials, 2024, 39(2): 95-105.
Citation: MA Lingwei, YANG Xueting, ZHENG Kaining, WANG Jinke, WANG Yue, YANG Hao. Self-Reporting and Self-Healing Dual Functional Anticorrosive Coating based on Tannic Acid Additives[J]. Development and Application of Materials, 2024, 39(2): 95-105.

基于单宁酸负载的自预警-自修复双重功能防腐涂层

详细信息
    作者简介:

    马菱薇,女,1990年生,副研究员,硕士生导师,主要研究方向为智能耐蚀材料与表面技术。E-mail:mlw1215@[KG-*3]ustb.edu.cn

  • 中图分类号: TG178

Self-Reporting and Self-Healing Dual Functional Anticorrosive Coating based on Tannic Acid Additives

  • 摘要: 通过一步合成法制备了负载单宁酸(TA)的显色、缓蚀双功能介孔二氧化硅纳米填料(TA-MSNs),将其掺杂到环氧涂层中,探究涂层的自预警和自修复性能。首先对TA的显色性能及缓蚀性能进行了表征,接着对TA-MSNs纳米填料的形貌结构以及TA的释放行为规律进行了探究,并综合分析纳米填料添加量对涂层自预警及自修复性能的影响规律。盐雾实验结果表明,涂层的自预警效果与填料含量呈正相关,5 %(w)以上的TA-MSNs添加量可赋予涂层明显的显色性能。电化学阻抗谱和表面分析结果表明,TA-MSNs在涂层中的含量为5 %时,破损涂层的低频阻抗模值比纯环氧破损涂层高出2个数量级。当涂层破损时,涂层中释放的TA分子能够与钢铁腐蚀形成的Fe3+发生络合,产生蓝黑色预警金属腐蚀,同时络合物可形成金属表面保护膜层,抑制了腐蚀反应的进一步发展。综上,添加5 % TA-MSNs的环氧涂层具有优异的自预警和自修复效果。

     

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出版历程
  • 收稿日期:  2023-10-25
  • 网络出版日期:  2024-05-09

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