氟聚合物共价接枝乙烯酯树脂复合涂料，提高机械性能、拒水性和耐腐蚀性

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.2025.109346

Shaozhen Xian, Wentian Wei, Mingmei Jing, Hongbin Zheng, Shengsen Wang, Shaoheng Yang, Yang Hu, Zhuangzhuang Chu, Zhuohong Yang

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引用次数: 0

摘要

金属防护用防腐涂料应具有良好的机械性能、拒水性和耐腐蚀性，以应对外界冲击和腐蚀介质侵蚀所造成的负面影响。本文采用反应性氟聚合物（PF-HDI）与环氧树脂（E-44）共价接枝，并与丙烯酸进行开环反应制备了新型乙烯基酯树脂（VER）复合涂料。共价引入PF-HDI对涂层的综合性能有显著影响。0.4 wt%的PF-HDI不仅赋予涂层优异的力学性能和耐腐蚀性，包括抗拉强度提高81.64% (80.94 MPa)，阻抗模量提高3个数量级（42 d）和6个数量级（82 d）（>1010 Ω cm2），而且与纯VER相比，防水性能显著提高。本研究为制备具有增韧、拒水性和耐腐蚀性的高性能复合涂层提供了一种有效的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Fluoropolymer covalent grafted vinyl ester resin composite coatings for enhancing mechanical properties, water repellency and corrosion resistance

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Fluoropolymer covalent grafted vinyl ester resin composite coatings for enhancing mechanical properties, water repellency and corrosion resistance

Anti-corrosion coatings for metal protection should have good mechanical properties, water repellency and corrosion resistance to deal with the negative effects caused by external impact and corrosive medium erosion. Herein, a novel vinyl ester resin (VER) composite coating was prepared by covalent grafting of reactive fluoropolymer (PF-HDI) with epoxy resin (E-44), and ring-opening reaction of acrylic acid. The covalent introduction of PF-HDI has a significant effect on comprehensive properties of the coating. 0.4 wt% of PF-HDI not only endow coating excellent mechanical properties and corrosion resistance, including 81.64 % increase in tensile strength (80.94 MPa), 3 orders (42 d) and 6 orders (82 d) of magnitude increase in impedance modulus (>10¹⁰ Ω cm²), but also significantly improve the water repellency compared with pure VER. This work provides an effective strategy for the preparation of high-performance composite coatings with toughening, water repellency and corrosion resistance enhancement suitable for various applications.

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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.