一种新型MWCNTs/氟碳漆防腐蚀导电涂层

A New Type of MWCNTs/Fluorocarbon Anticorrosive and Conductive Coating

为了解决现有石油化工企业防腐蚀导电涂料存在的防腐蚀性能低、耐磨性差、涂层易溶胀溶解的问题,选取耐蚀性好、耐磨性优良的氟碳涂料为基料,添加碳纳米管为填料制备了新型防腐蚀导电材料。通过表面粗糙度测试、力学性能测试、电化学阻抗谱(EIS)和傅里叶变换红外光谱(FTIR)技术,研究了多壁碳纳米管(MWCNTs)的加入对氟碳漆涂层表面粗糙度、力学性能、紫外老化以及化学结构的影响。结果表明:MWCNTs/氟碳漆防腐蚀导电涂层跟纯氟碳漆涂层相比表面粗糙度变化不大,拉伸强度和弹性模量分别增大了150%和133%,紫外加速老化24,72,144,216h后的耐蚀性也有所增强,MWCNTs不影响氟碳漆的化学结构。

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 24,72,144and216 halso increased,and MWCNTs had no effect on the chemical structure of fluorocarbon.