The influence mechanism of TiO2 content on the anti-corrosion performance of fluororesin coatings
ZHANG Xuetao
HAO Libing
LI Qinle
LI Hongkun
HUANG Zhifan
SHEN Peihu
WANG Minjia
Abstract：The submicron TiO2 particles were used as an anti-corrosion reinforcing filler to be incorporated into the ethylene-chlorotrifluoroeethylene(ECTFE).The TiO2/ECTFE composite coatings were prepared on carbon steel surfaces using electrostatic spraying technology followed by a heat treatment process.The results indicate that the TiO2 can enhance the anti-corrosion performance of the ECTFE coating,with its effectiveness being positively correlated with the TiO2 content.The surface roughness and hydrophobicity of the coating doped with 10.0%TiO2 are optimal,and the anti-corrosion performance is better.After soaking for 30 days,the low-frequency impedance is 6.94×109 Ω·cm2.TiO2 particles synergistically enhance the anti-corrosion performance of composite coatings by increasing surface roughness,reducing the internal porosity,and exhibiting a labyrinth effect.
Keywords：corrosion protectionTiO2ECTFEcomposite coating
Publication Date：2025-03-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 48-52,69 )