A New Type of MWCNTs/Fluorocarbon Anticorrosive and Conductive Coating

In order to solve the problems of low corrosion resistance, poor wear resistance and easy dissolution of conductive anti-corrosion coatings existing in petrochemical enterprises, fluorocarbon coating with good corrosion resistance and better wear resistance was selected as the base material, multi-walled carbon nanotubes (MWCNTs) were added as filler to prepare a new kind of anticorrosive and conductive material. The effects of MWCNTs addition on the surface roughness, mechanical properties, UV aging properties and chemical structure of the fluorocarbon coating were investigated by surface roughness test, mechanical test, electrochemical impedance spectroscopy (EIS) and Fourier transform infrared spectroscopy (FTIR). The results showed that the surface roughness of MWCNTs/fluorocarbon composite coating slightly changed compared with pure fluorocarbon coating. The tensile strength and elastic modulus were increased by 150% and 133% respectively. Corrosion resistance after UV aging 24, 72, 144 and 216 h also increased, and MWCNTs had no effect on the chemical structure of fluorocarbon.