Benzotriazole inbuilt hollow mesoporous CeO2 microsphere encapsuled by polydopamine/polyethyleneimine co-deposition layer for dual active corrosion protection of waterborne epoxy coated steel

IF 6.5 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-04-25 DOI:10.1016/j.porgcoat.2025.109331

Peng Xu, Tianguan Wang, Jingsha Tan, Wenfeng Ge, Huixuan Qian, Yanwei Zeng, Bing Lei, Honglei Guo, Zhiyuan Feng, Guozhe Meng

{"title":"Benzotriazole inbuilt hollow mesoporous CeO2 microsphere encapsuled by polydopamine/polyethyleneimine co-deposition layer for dual active corrosion protection of waterborne epoxy coated steel","authors":"Peng Xu, Tianguan Wang, Jingsha Tan, Wenfeng Ge, Huixuan Qian, Yanwei Zeng, Bing Lei, Honglei Guo, Zhiyuan Feng, Guozhe Meng","doi":"10.1016/j.porgcoat.2025.109331","DOIUrl":null,"url":null,"abstract":"<div><div>In this work, a new type of hollow mesoporous CeO<sub>2</sub> microsphere (HMCM), synthesized through a template-free approach, was utilized as both an inhibitor and a nanocontainer for loading the corrosion inhibitor benzotriazole (BTA). These microspheres were encapsulated with a <em>co</em>-deposition layer composed of polydopamine (PDA) and polyethyleneimine (PEI) to construct smart containers (PDA-PEI@HMCM-BTA) with pH-responsive release properties. The corrosion inhibition effect of PDA-PEI@HMCM-BTA nanocontainers was assessed and the release rate of BTA and Ce ions from the nanocontainers was greatly accelerated in the presence of acidic solutions. Electrochemical impedance spectroscopy (EIS) was conducted to evaluate the barrier properties and active anti-corrosion performance of the coatings. The results showed that the integration of nanocontainers within the waterborne epoxy coating significantly improved the corrosion resistance and self-healing capabilities, thereby providing efficient corrosion protection for carbon steels. The method offered a simplified synthesis route for Ce-based nanocontainers and presented a strategy for producing waterborne epoxy coatings with active anticorrosive properties.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"206 ","pages":"Article 109331"},"PeriodicalIF":6.5000,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Organic Coatings","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0300944025002802","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

In this work, a new type of hollow mesoporous CeO₂ microsphere (HMCM), synthesized through a template-free approach, was utilized as both an inhibitor and a nanocontainer for loading the corrosion inhibitor benzotriazole (BTA). These microspheres were encapsulated with a co-deposition layer composed of polydopamine (PDA) and polyethyleneimine (PEI) to construct smart containers (PDA-PEI@HMCM-BTA) with pH-responsive release properties. The corrosion inhibition effect of PDA-PEI@HMCM-BTA nanocontainers was assessed and the release rate of BTA and Ce ions from the nanocontainers was greatly accelerated in the presence of acidic solutions. Electrochemical impedance spectroscopy (EIS) was conducted to evaluate the barrier properties and active anti-corrosion performance of the coatings. The results showed that the integration of nanocontainers within the waterborne epoxy coating significantly improved the corrosion resistance and self-healing capabilities, thereby providing efficient corrosion protection for carbon steels. The method offered a simplified synthesis route for Ce-based nanocontainers and presented a strategy for producing waterborne epoxy coatings with active anticorrosive properties.

Abstract Image

查看原文本刊更多论文

聚多巴胺/聚乙烯亚胺共沉积层包封苯并三唑内嵌中空介孔CeO2微球用于水性环氧涂层钢的双活性防腐

本文采用无模板法合成了一种新型中空介孔CeO2微球（HMCM），作为缓蚀剂苯并三唑（BTA）的缓蚀剂和纳米容器。这些微球被聚多巴胺（PDA）和聚乙烯亚胺（PEI）组成的共沉积层包裹，构建具有ph响应释放特性的智能容器（PDA-PEI@HMCM-BTA）。考察了PDA-PEI@HMCM-BTA纳米容器的缓蚀效果，发现在酸性溶液存在下，BTA和Ce离子从纳米容器中释放速度大大加快。利用电化学阻抗谱（EIS）对涂层的阻隔性能和活性防腐性能进行了评价。结果表明，纳米容器在水性环氧涂层中的集成显著提高了涂层的耐蚀性和自愈能力，从而为碳钢提供了有效的防腐保护。该方法简化了ce基纳米容器的合成路线，为制备具有活性防腐性能的水性环氧涂料提供了一种策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.