Preparation and corrosion resistance of SiO2 or TiO2 nano particles/fluorinated polyacrylate polymer composite coatings

被引：0
|
作者：
Liang X. [1 ]
Liu C. [1 ]
Mi X. [2 ]
Zhu W. [1 ]
Zhou Q. [3 ]
Xiao Q. [1 ]
机构：
[1] Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, Jinhua
[2] Beijing Thinvec Co. Ltd, Beijing
[3] Juhua Group Corporation, Quzhou
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2020年 / 37卷 / 08期
关键词：
Anti-corrosion; Composite coating; Fluorinated polyacrylate polymer; Inorganic nanoparticles; Surface wettability;
D O I：
10.13801/j.cnki.fhclxb.20191206.003
中图分类号：
学科分类号：
摘要：
SiO2 or TiO2 nanoparticles/fluorinated polyacrylate polymer (PFHI) composite coatings with thickness of 1 μm were prepared by incorporating nanoparticles into PFHI solution followed by dip-coating and thermal curing. The effects of the amount of SiO2 or TiO2 nanoparticles on the surface properties and corrosion resistance of the composite coatings were investigated. The corrosion electrochemical property of the SiO2 or TiO2/PFHI composite coatings in 3.5wt% NaCl solution was investigated by Tafel curves and electrochemical impedance spectroscopy (EIS). XPS, attenuated total reflection Fourier transform infrared (ATR-FTIR), TG-DTA, SEM, optical contact angle (OCA) were used to characterize the composite coatings. The results show that the addition of SiO2 or TiO2 nanoparticles could greatly improve the corrosion resistance of the PFHI coatings. The SiO2/PFHI composite coating with SiO2 to PFHI of 0.3 in mass ratio exhibits the best electrochemical corrosion resistance performance and the penetration resistance Rct is increased by two order of magnitude compared with the neat PFHI coating. The SiO2 or TiO2 nanoparticles combine with the PFHI tightly and increase the coating surface roughness to form the compact composite coatings, improving the hydrophobicity and compactness and the corrosion resistance of SiO2 or TiO2/PFHI composite coatings. © 2020, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：1832 / 1840
页数：8
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