摘要： 在高黏度丙烯酸树脂涂料中加入消泡剂、增塑剂、镍粉等，制备出具有导电功能的防腐涂料。 通过测试涂层表面接触电阻来表征涂层的导电性。 采用电化学阻抗谱、Tafel 极化曲线和扫描电镜(SEM)等方法，研究了镍粉的含量与涂层耐腐蚀性能的关系。 结果表明:镍粉的填充量越大，涂料的导电性越好，耐腐蚀性能越差。 在所研究的体系中，镍粉的含量在 20%左右时，涂层具有较好的导电性能和耐腐蚀性能。
关键词:
导电涂料,
镍粉,
导电性,
耐蚀性
Abstract: The conductive and anticorrosive coatings were prepared by adding defoamer, plasticizer and nickel powder, etc. to the acrylic resin coatings with high viscosity. The electrical conductivity of the coating is characterized by testing its surface contact resistance. The influence of nickel powder content on anticorrosive performance of the coatings was studied by electrochemical impedance spectroscopy, Tafel Polarization and scanning electron microscopy. The results indicated that an increase of the nickel powder content might increase the electrical conductivity of the coatings, but decrease the corrosion resistance. Furthermore, the coatings showed the balanced electrical conductivity and anticorrosive performance when the nickel powder content was about 20%.
Key words:
conductive coatings,
nickel powder,
electrical conductivity,
anticorrosive performance
张心华, 闫爱军, 聂凯斌, 郑博野, 陈亚琼, 廖强强, 姚 瑶. 富镍导电涂层耐腐蚀性能研究[J]. 涂料工业, 2015, 45(3): 1-6.
Zhang Xinhua, Yan Aijun, Nie Kaibin, Zheng Boye, Chen Yaqiong, Liao Qiangqiang, YaoYao. Anticorrosive Performance of Nickel-Rich Conductive Coatings[J]. Paint & Coatings Industry, 2015, 45(3): 1-6.