金属系防静电涂料导电性能的影响研究  

The Research on Conductivity of Metallic Antistatic Coatings

作　　者：王珂 乔建江[1] Wang Ke;Qiao Jianjiang(School of Resources and Environmental Engineering,Safety Engineering Consulting Center,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学资源与环境工程学院华东理工大学安全工程咨询中心,上海200237

出　　处：《涂料工业》2020年第6期28-32,33,共6页Paint & Coatings Industry

摘　　要：针对金属系防静电涂料,研究了金属粉用量、粒径、种类、形状以及在空气中暴露时间对涂层导电性能的影响。采用涂料电阻率测定仪对涂层表面电阻率进行测定,采用扫描电子显微镜(SEM)、能谱仪(EDS)对金属粉的微观形貌、元素组成进行探究。结果表明:金属系防静电涂料的导电性能与所考查因素密切相关。随着金属粉用量的增加,涂层的导电性能增强;随着金属粉粒径的减小,涂层的导电性能先增强后减弱,400目金属粉制得的涂层导电性能最佳;金属系防静电涂料的导电性能取决于金属粉填料本体的导电性能;由树枝状、混合状、球状铜粉制得的涂层导电性能依次减弱;金属粉在空气中暴露一段时间后,所制得涂层导电性能均明显减弱。The effects of dosage,particle size,types,particle shapes and exposure time in air of metal powders on conductivity of metallic antistatic coatings were investigated.The surface resistivity of the coatings was measured by a paint resistivity meter.The microstructure and element composition of the metal powder were investigated by scanning electron microscopy(SEM)and energy dispersive spectrometer(EDS).The result showed that the conductivity of metallic antistatic coatings was closely related to the variables investigated.The conductivity of the coatings increased with the increase of the amount of metal powder.As the particle size of the metal powder decreased,the conductivity of the coating firstly increased and then decreased,and the coatings prepared with 400 mesh metal powders indicated the best conductivity.The surface resistivity of the coatings showed a positive correlation with the conductivity of the metal power itself.The conductivity of the coatings prepared from dendritic,mixed,and spherical copper powders decreased in sequence.After the metal powders were exposed to air for a period of time,the conductivity of the coatings decreased.

关 键 词：储罐安全 防静电涂料 金属粉 导电性能 安全工程 

分 类 号：TQ637.1[化学工程—精细化工]