高电压技术2011，Vol.37Issue(8)：1916-1923,8.
室温硫化与温硫化硅橡胶在交流电晕下憎水特性的比较
Influence of AC Corona on HTV and RTV Hydrophobicity Loss and Recovery
摘要
Abstract
To study the influence of AC corona on hydrophobicity loss, recovery of room temperature vulcanization （RTv}, and high temperature vulcanization （HTV） silicone rubber, we measured the corona of RTV and HTV samples with the same thick and the same temperature, humidity and electric field strength based on the established corona measurement system, the static contact angle of different time of corona, and recovery stage in different du- ration and voltage. The result indicates that： if the corona voltage and corona duration is the same, the hydrophobic- ity loss speed of RTV is slower than that of HTV, the time of hydrophobicity recovering to initial value of RTV is obvious shorter than that of HTV. The hydrophobicity recovery time will increase with the increase of corona dura- tion. The hydrophobicity loss speed and the hydrophobicity recovery time will increase with the increase of corona voltage. Halo area will increase with the increase of corona duration and corona voltage. The hydrophobicity loss speed is fast in corona initial stage, then the hydrophobicity loss speed will decrease with the increase of corona time, finally the hydrophobicity of the silicone rubber will tend to be stable. The hydrophobicity recovery speed is fast in recovery initial stage, then the hydrophobicity recovery speed will decrease with the increase of recovery time, finally the hydrophobiclty will tend to be stable. The silicone rubber samples after corona were analyzed by scanning electron microscope （SEM）, the result indicates that surface damage degree of RTV is more serious than that of HTV.关键词
硅橡胶/交流电晕/室温硫化（RTV）/高温硫化（HTV）/憎水性/静态接触角/扫描电镜（SEM）Key words
silicone rubber/AC corona/room temperature vulcanization （RTV}/high temperature vulcanization{HTV）/hydrophobicity/static contact angle/scanning electron microscope （SEM）分类
信息技术与安全科学引用本文复制引用
徐志钮,律方成,刘云鹏,梁英..室温硫化与温硫化硅橡胶在交流电晕下憎水特性的比较[J].高电压技术,2011,37(8):1916-1923,8.基金项目
国家自然科学基金 （）
教育部霍英东教育基金基础性研究课题 （）
中央高校基本科研业务费专项资金（11MG42）. （）
