微纳米α-Al2O3改性丙烯酸树脂-有机硅烷复合钝化对不锈钢硬度及耐蚀性的影响

伏建康, 马常帅, 冉长荣, 王运厚, 郭太雄, 张千峰

doi:10.16577/j.issn.1001-1560.2024.0104

材料保护 >

2024 , Vol. 57 >Issue 5: 76 - 82

DOI: https://doi.org/10.16577/j.issn.1001-1560.2024.0104

研究篇

微纳米α-Al₂O₃改性丙烯酸树脂-有机硅烷复合钝化对不锈钢硬度及耐蚀性的影响

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(1. 安徽工业大学分子工程与应用化学研究所，安徽马鞍山 243002；2. 攀钢集团研究院有限公司钒钛资源综合利用国家重点实验室，四川攀枝花 617000)

张千峰(1966-)，博士，教授，研究方向为应用材料化学，E-mail:zhangqianfeng@ ahut.edu.cn

收稿日期: 2023-08-16

修回日期: 2023-10-24

录用日期: 2023-10-30

网络出版日期: 2024-05-31

基金资助

校企产学研联合科技攻关项目(MS2013019)资助

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Influence of Micro-Nano α-Al₂O₃ Modified Acrylic Resin-Organosilane Composite Passivation Solution on Hardness and Corrosion Resistance of Stainless Steel

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(1. Institute of Molecular Engineering and Applied Chemistry，Anhui University of Technology，Ma’anshan 243002，China；2. State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization，Pangang Group Research Institute Co.，Ltd.，Panzhihua 617000，China)

ZHANG Qianfeng(1966-)，Ph.D.，Professor，Research Focus: Applied Materials Chemistry，E - mail: zhangqianfeng@ ahut.edu.cn

Received date: 2023-08-16

Revised date: 2023-10-24

Accepted date: 2023-10-30

Online published: 2024-05-31

Supported by

The Collaborative Research and Development Project Among Universities，Enterprises，and Research Institutes(MS2013019)

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摘要

通过微纳米α-Al₂O₃改性丙烯酸树脂-有机硅烷复合而成的无铬钝化液作用于不锈钢基板表面，探究其在不锈钢表面形成的微纳米α-Al₂O₃钝化膜对不锈钢表层性能的影响。通过表面硬度测试、扫描电镜测试，分析基板表面特征。同时，通过涂层附着力测试和电化学测试，探究涂层的粘结强度和基板的耐蚀性能。结果表明，经微纳米α-Al₂O₃改性的无铬钝化液使不锈钢板材的耐蚀性显著提升，同时对其表面硬度的提升效果达到80%。

关键词： 微纳米α-Al₂O₃; 无铬钝化; 改性丙烯酸树脂-有机硅烷; 不锈钢基板; 硬度; 耐蚀性

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伏建康, 马常帅, 冉长荣, 王运厚, 郭太雄, 张千峰 . 微纳米α-Al₂O₃改性丙烯酸树脂-有机硅烷复合钝化对不锈钢硬度及耐蚀性的影响[J]. 材料保护, 2024 , 57(5) : 76 -82 . DOI: 10.16577/j.issn.1001-1560.2024.0104

Abstract

The chromium-free passivation liquid composed of micro-nano α-Al₂O₃ modified acrylic resin-organosilane was applied to the surface of the stainless steel substrate, for exploring the impact of the micro-nano α-Al₂O₃ passivation film formed on the surface of the stainless steel on the surface properties of the stainless steel. The surface characteristics of the substrate through surface hardness testing and scanning electron microscopy testing were analyzed. Meanwhile, the bonding strength of the coating and the corrosion resistance of the substrate were explored through coating adhesion test and electrochemical test. Results showed that the chromium-free passivation liquid modified by micro-nano α-Al₂O₃ significantly improved the corrosion resistance of stainless steel plates, and the surface hardness was increased by 80%.

Key words： micro-nano α-Al₂O₃; ; chromium-free passivation; ; modified acrylic resin-organosilane; ; stainless steel substrate; ; hardness; ; corrosion resistance

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