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建筑45钢结构表面超疏水结构的制备及其耐蚀性能分析

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  • 1. 南充职业技术学院土木与建筑工程系; 2. 湖南工学院建筑工程与艺术设计学院
王 萃(1985-),讲师,硕士,主要从事建筑工程,E - mail:wangying881208@126.com

收稿日期: 2021-07-30

  修回日期: 2021-08-25

  录用日期: 2021-09-30

  网络出版日期: 2023-12-24

基金资助

湖南省教育厅青年项目(11B034)资助

Preparation of Superhydrophobic Structure on the Surface of Building 45 Steel Structure and Its Corrosion Resistance Analysis

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  • 1. Department of Civil and Architectural Engineering, Nanchong Vocational and Technical College, Nanchong 637700, China;2. School of Architectural Engineering and Art Design, Hunan University of Technology, Hengyang 421001, China

Received date: 2021-07-30

  Revised date: 2021-08-25

  Accepted date: 2021-09-30

  Online published: 2023-12-24

摘要

为提高建筑45钢结构表面的超疏水能力,采用一步快速电沉积的方式在45钢表面制备超疏水结构,通过试验测试优化了制备参数,同时表征了超疏水结构的结构及其耐腐蚀性能。通过接触角和滚动角分析确定最优工艺:电解液组成采用0.05 mol/L硬脂酸、40 mg/L苯三腈,电沉积电压为8 V,电沉积时间取10 h。以最优工艺制备试样,并进行组织及耐腐蚀性能分析。对45钢试样表面进行超疏水处理后,形成了许多外形尺寸与分布形态均匀的突起并产生了明显凹坑。对45钢进行超疏水处理后获得了更高的自腐蚀电位,说明超疏水改性后的45钢对3.5%NaCl溶液具有更强的耐蚀性,且可以同时提升阳极与阴极的耐蚀能力。

本文引用格式

王萃, 刘传辉 . 建筑45钢结构表面超疏水结构的制备及其耐蚀性能分析[J]. 材料保护, 2022 , 55(1) : 165 -169 . DOI: 10.16577/j.issn.1001-1560.2022.0021

Abstract

In order to improve the superhydrophobic capacity of the surface of 45 steel structure, the superhydrophobic structure was prepared on the surface of 45 steel by means of one step rapid electrodeposition. The preparation parameters were optimized by means of experimental test, and the structure and corrosion performance of the superhydrophobic structure were characterized. The optimal process was determined by contact angle and rolling angle analysis. Results showed that the optimized process was as follows: the electrolyte was composed of 0.05 mol/L stearic acid and 40 mg/L benzotriazole, the electrodeposition voltage was 8 V, and the electrodeposition time was 10 h. The microstructure and corrosion resistance of samples prepared by the optimal process were analyzed. After superhydrophobic treatment on the surface of 45 steel samples, many protrusions with uniform dimensions and distribution patterns were formed and the obvious pits appeared. After superhydrophobic treatment on 45 steel, higher self - corrosion potential was obtained, indicating that the 45 steel modified by superhydrophobic treatment had stronger corrosion resistance to 3.5% NaCl solution, and could improve the corrosion resistance of anode and cathode at the same time.
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