Structure and Properties of Fluorinated Acrylate Polymer Microspheres Filled Epoxy Resin Coatings

被引：0
|
作者：
Gao K. [1 ]
Xiang Y. [1 ]
Fang J. [1 ]
Ren Q. [1 ]
Wang C. [1 ]
Li J. [1 ]
机构：
[1] National Experimental Demonstration Center for Materials Science and Engineering, Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2023年 / 39卷 / 08期
关键词：
corrosion resistance; electrochemical impedance spectroscopy; epoxy coating; fluoropolymer microspheres; UV aging resistance;
D O I：
10.16865/j.cnki.1000-7555.2023.0164
中图分类号：
学科分类号：
摘要：
Poly(dodecafluoroheptyl methacrylate) and (dodecafluoroheptyl methacrylate- glycidyl methacrylate) microspheres were prepared by dispersion polymerization and filled into epoxy resin to prepare polymer microspheres/ epoxy resin composite coatings. FT- IR was used to characterize the surface chemical composition of copolymerized microspheres. The microstructure and particle size distribution of microspheres were characterized by SEM and laser particle size analyzer. Electrochemical impedance spectroscopy (EIS) was used to test the corrosion resistance of the composite coatings. After 60 d of testing, the impedance value of the coating filled with fluoropolymer microspheres remains at 109 Ω · cm2, indicating that the polymer microspheres can effectively prevent the penetration of corrosive media and achieve long- term corrosion resistance of coatings. The results of water absorption test show that the water absorption of the film can be reduced from 1.75% to 0.7% by filling the microspheres. In addition, UV aging test proves that the addition of fluoropolymer can improve the UV aging resistance of the coating films. © 2023 Chengdu University of Science and Technology. All rights reserved.
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页码：66 / 73
页数：7
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