锌粉的原位 PANI 封装可增强富锌环氧涂料的耐腐蚀性能

IF 3.1 4区工程技术 Q2 ELECTROCHEMISTRY Journal of The Electrochemical Society Pub Date : 2024-09-17 DOI:10.1149/1945-7111/ad7891

Yan Su, Ben Yang, Xinwei Xu, Maosheng Jing, Xinnian Meng and Yongming Tang

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引用次数: 0

摘要

针对富锌环氧涂料（ZRCs）开发了一种通过苯胺原位聚合（PANI@Zn）封装锌粉的方法。在 ZRC 中应用 PANI@Zn 复合材料后，由于 PANI 在浸泡初期具有缓蚀作用，且物理屏蔽主要负责保护钢基材，因此封装的锌粉不会被活化。在阴极保护阶段，锌粉的消耗量从 PANI@Zn 涂层的外层到内层是相对均匀的，锌粉的利用率高于原料锌粉掺入涂层中的利用率。使用 PANI@Zn 复合材料后，达到与锌粉原料相同的保护效果所需的锌粉量减少了约 20%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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In Situ PANI Encapsulation of Zinc Powder Enhancing the Corrosion Resistance of Zinc-Rich Epoxy Coatings

An approach to encapsulate zinc powder by in situ polymerization of aniline (PANI@Zn) is developed for Zn-rich epoxy coatings (ZRCs). With the application of PANI@Zn composites in the ZRCs, the encapsulated zinc particles are not activated due to the corrosion inhibition of PANI at the early stage of immersion, and physical shielding being mainly responsible for the protection of the steel substrate. At the stage of cathodic protection, the consumption of zinc powder is relatively uniform from the outer layer to the inner layer of the coating PANI@Zn coating, and the utilization rate of zinc powder is higher than that in the coating incorporated by the raw zinc powder. The required amount of zinc powder for achieving the same protective effect as the case of the raw zinc powder is reduced by ca. 20% after the application of the PANI@Zn composites.

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来源期刊

Journal of The Electrochemical Society 工程技术-电化学

CiteScore

7.20

自引率

12.80%

发文量

1369

审稿时长

1.5 months

期刊介绍： The Journal of The Electrochemical Society (JES) is the leader in the field of solid-state and electrochemical science and technology. This peer-reviewed journal publishes an average of 450 pages of 70 articles each month. Articles are posted online, with a monthly paper edition following electronic publication. The ECS membership benefits package includes access to the electronic edition of this journal.