炭黑/碳化硅复合导电涂料的制备及导电性能研究

Preparation of Carbon Black-Silicon Carbide Contained Conductive Paint and Study on Its Conductivity

制备了一种以炭黑、碳化硅为混合填料的复合导电涂层。研究了炭黑/碳化硅混合填料复合涂层的导电性能,重点研究了混合填料和炭黑种类对涂料导电性能的影响。试验结果表明,混合填料能够明显改善涂层的导电性能,混合填料的炭黑含量在5%时出现渗透阈值,当炭黑含量为25%时电阻率降至10.59Ω.cm。

A composite conductivity coating is prepared with carbon black-silicon carbide as mixed filler. The conductivity thereof is studied. The. effects of mixed filler and type of carbon black on the conductivity of the composite coating are mainly investigated. The test results show that the mixed filler can improve the conductivity of the coating significantly, percolation threshold appears when the carbon black content is 5%, and the electrical resistivity decreases to 10.59 Ω·cm when the carbon black content is up to 25%.