Construction of Superhydrophobic Interface and Anticorrosion Mechanism of Basalt Flake/Fluorinated‐Epoxy‐Acrylic Composite Coating

IF 3.6 4区工程技术 Q2 ENGINEERING, CHEMICAL

Polymer Engineering and Science Pub Date : 2025-11-07 DOI:10.1002/pen.70235

Chongwei Yin, Chao Wei, Genrong Li, Xun Zhang, Xuena Zhang, Fengqiang Zhang, Ting Wang, Fan Wu

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引用次数: 0

Abstract

ABSTRACT This study addresses the issue of structural defects that often occur during the curing process of epoxy resin‐based anti‐corrosion coatings, which can compromise their barrier properties. A dual modification strategy of “resin matrix functionalization + filler interface engineering” is proposed. By synthesizing fluorinated acrylic resin and blending it with epoxy resin, the matrix is endowed with intrinsic hydrophobicity. Simultaneously, the surface of basalt flakes is graft‐modified using KH550 silane coupling agent and stearoyl chloride to construct a stable superhydrophobic interface. This synergistic system combines the physical shielding effect of basalt flakes with the low surface energy characteristics of fluorocarbon chains, forming a multi‐scale barrier structure. Through systematic characterization using SEM, FTIR, electrochemical impedance spectroscopy, salt spray testing, contact angle measurements, and bacterial adhesion experiments, significant improvements in the coating's corrosion resistance, superhydrophobicity, and anti‐fouling properties are validated.

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玄武岩片状/氟化环氧丙烯酸复合涂层超疏水界面的构建及防腐机理

摘要：本研究解决了环氧树脂基防腐涂料在固化过程中经常出现的结构缺陷问题，这些缺陷会损害其屏障性能。提出了“树脂基体功能化+填料界面工程”的双重改性策略。通过合成氟化丙烯酸树脂并与环氧树脂共混，使其具有固有的疏水性。同时，用KH550硅烷偶联剂和硬脂酰氯对玄武岩薄片表面进行接枝改性，构建了稳定的超疏水界面。该协同体系结合了玄武岩薄片的物理屏蔽效应和氟碳链的低表面能特性，形成了多尺度屏障结构。通过扫描电镜（SEM）、红外光谱（FTIR）、电化学阻抗谱（electrochemical impedance spectroscopy）、盐雾测试（salt spray testing）、接触角测量（contact angle measurements）和细菌粘附实验（bacterial adhesion experiments）等系统表征，验证了涂层在耐腐蚀、超疏水性和抗污性能方面的显著改善。

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来源期刊

Polymer Engineering and Science 工程技术-高分子科学

CiteScore

5.40

自引率

18.80%

发文量

329

审稿时长

3.7 months

期刊介绍： For more than 30 years, Polymer Engineering & Science has been one of the most highly regarded journals in the field, serving as a forum for authors of treatises on the cutting edge of polymer science and technology. The importance of PE&S is underscored by the frequent rate at which its articles are cited, especially by other publications - literally thousand of times a year. Engineers, researchers, technicians, and academicians worldwide are looking to PE&S for the valuable information they need. There are special issues compiled by distinguished guest editors. These contain proceedings of symposia on such diverse topics as polyblends, mechanics of plastics and polymer welding.