微弧氧化表面的溶胶-凝胶涂料封孔及其耐腐蚀性研究

doi:10.12020/j.issn.0253-4312.2019.11.7

涂料工业 ›› 2019, Vol. 49 ›› Issue (11): 7-11. doi: 10.12020/j.issn.0253-4312.2019.11.7

微弧氧化表面的溶胶-凝胶涂料封孔及其耐腐蚀性研究

邱宁¹,杨国亮²,王振芳³,陈益坪⁴,金晓锋⁴，陈新⁵

1.国家电网有限公司，北京 100031； 2.国家电网北京市电力局，北京 100031；
3.国家电网河南电力公司，郑州 450052； 4.国家电网浙江电力有限公司，杭州 310007；
5.全球能源互联网研究院有限公司，北京 102211

收稿日期:2019-05-17 修回日期:2019-10-11 出版日期:2019-11-01 发布日期:2019-11-01
通讯作者: 邱宁 E-mail:yuejs0204@163.com
作者简介:邱宁（1973—），男，硕士，高级工程师，主要从事电工材料的腐蚀与防护研究。

The Sealing Treatment with Sol-Gel Coatings Method for Micro-Arc Oxidation Layerand Its Corrosion Resistance

Qiu Ning¹，Yang Guoliang²，Wang Zhenfang³，Chen Yiping⁴，Jin Xiaofeng⁴，Chen xin⁵

1. State Grid Corporation of China，Beijing 100031，China； 2. State Grid Beijing Electric Power Company， Beijing 100031，China； 3. State Grid Henan Electric Power Company，Zhenzhou 450052，China； 4. State Grid Zhejiang Electric Power Company，Hangzhou 310007，China； 5. Golbal energy interconnection research institute Co., Ltd., Beijing 102211，China

Received:2019-05-17 Revised:2019-10-11 Online:2019-11-01 Published:2019-11-01

摘要/Abstract

摘要： 使用紫外光辅助溶胶 -凝胶的光化学工艺，在微弧氧化的铝合金纤维表面涂敷一层封孔层，封孔层能够有效地将多孔的微弧氧化膜封闭，显著提高铝合金纤维的耐腐蚀性能。对微弧氧化后和封孔后的铝合金纤维进行电化学分析，结果显示，封孔后铝合金纤维的腐蚀电位从 -0.651 V正移至 -0.368V。腐蚀电流密度 Icorr从 6.02×10^-6 A/cm²降低到 9.58×10^-10 A/cm²，极化电阻 R_p从 5.4×10³ Ω·cm²增加到 4.5× 10⁴Ω·cm²，紫外光处理过的封孔膜层的腐蚀速率显著降低，铝合金纤维的耐腐蚀性能显著提高。

关键词: 光化学, 微弧氧化, 耐腐蚀性, 封孔膜

Abstract: A thin sealing layer was coated on the micro-arc oxidation film of aluminiumalloy fiber by photo-chemical sol-gel method assisted underultraviolet light. The sealing layercould seal the porous micro-arc oxidation film completely，with a significant increase of thecorrosion resistance of aluminium fiber. The corrosion resistance of the micro-arc oxidation film and sealed layer were analysed by electrochemical workstation，the result showed that the corrosion potential of aluminum alloy fiber was positively shifted form -0. 651 V to -0. 368 V. The corrosion current Icorr was decreased form 6.02×10^-6 A/cm² to 9.58×10^-10 A/cm². The polarization impedance R_p was increased from 5.4×10³ Ω·cm² to 4.5×10⁴ Ω·cm²，and the ultraviolet light treated micro-arc oxidation sealing layer provided low corrosion rate，which ensured the beter corrosion resistance property of aluminum fiber.

Key words: photochemical, micro-arc oxidation, corrosion resistance, sealing film

中图分类号:

TQ635. 2

邱宁, 杨国亮, 王振芳, 陈益坪, 金晓锋, 陈新. 微弧氧化表面的溶胶-凝胶涂料封孔及其耐腐蚀性研究[J]. 涂料工业, 2019, 49(11): 7-11.

Qiu Ning, Yang Guoliang, Wang Zhenfang, Chen Yiping, Jin Xiaofeng, Chen xin. The Sealing Treatment with Sol-Gel Coatings Method for Micro-Arc Oxidation Layerand Its Corrosion Resistance[J]. Paint & Coatings Industry, 2019, 49(11): 7-11.

https://www.cn-pci.com/CN/Y2019/V49/I11/7

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微弧氧化表面的溶胶-凝胶涂料封孔及其耐腐蚀性研究

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