Fluoropolymer covalent grafted vinyl ester resin composite coatings for enhancing mechanical properties, water repellency and corrosion resistance
Year: 2025
Type: article
Abstract: 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 (>10 10 Ω cm 2 ), 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.
Source: Progress in Organic Coatings
Authors: Shaozhen Xian, Wentian Wei, Mingmei Jing, Hongbin Zheng, Shengsen Wang, Shaoheng Yang, Yang Hu, Zhuangzhuang Chu, Zhuohong Yang
Institution: South China Agricultural University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,350
OpenAlex ID: W4409794696