复合绝缘子粉化伞裙的微观结构与憎水性的关联研究The Relationship Between Microstructure and Hydrophobicity of Pulverized Composite Insulator Sheds
邓桃;杨滴;陶文彪;周凯;张学军;谷琛;
摘要(Abstract):
为研究粉化硅橡胶伞裙的憎水性与其微观结构的关系,针对现场取回的3支粉化的110kV复合绝缘子,通过红外光谱、扫描电镜、能谱分析等方法开展研究。首先,利用静态接触角和喷水分级法测试样本的憎水性,粉化层表面的憎水性相比新样本略有下降,去掉表面的粉化层后,其憎水性明显下降。然后,通过红外光谱测试发现样本的主链和侧链基团(Si-O和Si-CH_3)发生了断裂,侧链甲基含量减少;扫描电镜发现去粉化层后硅橡胶表面存在大量微孔和裂纹,因而导致去粉化层后的硅橡胶伞裙表面憎水性明显降低。最后,通过能谱分析发现,粉化层中的硅含量明显高于去粉化层后硅橡胶表面和材料内部值,同时粉化层表面的粗糙度增加,说明粗糙度和硅氧烷小分子的迁移同时导致粉化层表面的憎水性优于去掉粉化层后的表面。研究结果表明,粉化与硅橡胶伞裙的憎水性关联密切,但仍需深入研究粉化复合绝缘子的运行可靠性和使用寿命。
关键词(KeyWords): 复合绝缘子;粉化;憎水性;红外光谱;扫描电镜;能谱分析
基金项目(Foundation):
作者(Author): 邓桃;杨滴;陶文彪;周凯;张学军;谷琛;
Email:
DOI: 10.13335/j.1000-3673.pst.2016.01.046
参考文献(References):
- [1]张文亮,吴维宁,吴光亚,等.我国绝缘子的发展现状与应用前景[J].高电压技术,2004,30(1):10-12.Zhang Wenliang,Wu Weining,Wu Guangya,et al.The insulators development and application of our country[J].High Voltage Engineering,2004,30(1):10-12(in Chinese).
- [2]吴光亚.我国绝缘子的发展现状及应考虑的问题[J].电瓷避雷器,2010,4(2):7-11.Wu Guangya.Development of China’s insulator and the issue should be considered[J].Insulators and Surge Arresters,2010,4(2):7-11(in Chinese).
- [3]刘泽洪.复合绝缘子使用现状及其在特高压输电线路中的应用前景[J].电网技术,2006,30(12):1-7.Liu Zehong.Present situation and prospects of applying composite insulators to UHF transmission lines in China[J].Power System Technology,2006,30(12):1-7(in Chinese).
- [4]李震宇,崔吉峰,周远翔,等.现场运行复合绝缘子憎水性的研究[J].高电压技术,2006,32(1):24-26.Li Zhenyu,Cui Jifeng,Zhou Yuanxiang,et al.Study on the hydrophobicity of composite insulator in service[J].High Voltage Engineering,2006,32(1):24-26(in Chinese).
- [5]Berg M,Thottappillil R,Scuka V.Hydrophobicity estimation of HV polymeric insulating materials:development of a digital image processing method[J].IEEE Transactions on Dielectrics and Electrical Insulation,2001,8(6):1098-1107.
- [6]刘洋,周志成,魏旭,等.不同环境因素对硅橡胶憎水性及憎水迁移性的影响[J].高电压技术,2010,36(10):2454-2459.Liu Yang,Zhou Zhicheng,Wei Xu,et al.Effect of environment factor on hydrophobicity and transfer of hydrophobicity of silicone rubber[J].High Voltage Engineering,2010,36(10):2454-2459(in Chinese).
- [7]鲁志伟,杨秀媛.硅橡胶憎水迁移机理的研究[J].中国电机工程学报,2001,21(5):51-55.Lu Zhiwei,Yang Xiuyuan.A study on hydrophobicity transfer of silicone rubber[J].Proceedings of the CSEE,2001,21(5):51-55(in Chinese).
- [8]关志成,梁曦东,张仁豫,等.硅橡胶合成绝缘子的憎水性使用寿命的研究[J].高电压技术,1998,24(1):6-8.Guan Zhicheng,Liang Xidong,Zhang Renyu,et al.Hydrophobicity life-span of silicone rubber composite insulators[J].High Voltage Engineering,1998,24(1):6-8(in Chinese).
- [9]申文伟,宋伟,王国利,等.复合绝缘子HTV硅橡胶材料老化特性的研究[J].高压电器,2013,49(2):1-7.Shen Wenwei,Song Wei,Wang Guoli,et al.Influence of corona discharge on aging characteristics of HTV silicone rubber material[J].High Voltage Apparatus,2013,49(2):1-7(in Chinese).
- [10]汪佛池,黄成才,李永刚,等.硅橡胶复合绝缘子老化状态评估新判据[J].电网技术,2014,38(11):3224-3229.Wang Fochi,Huang Chengcai,Li Yonggang,et al.A new criterion to assess aging status of silicon rubber composite insulator[J].Power System Technology,2014,38(11):3224-3229(in Chinese).
- [11]宿志一,陈刚,李庆峰,等.硅橡胶复合绝缘子伞裙护套的老化及其判据研究[J].电网技术,2006,30(12):53-57.Su Zhiyi,Chen Gang,Li Qingfeng,et al.Study on aging and criterion of sheds and housing of silicone rubber composite insulator[J].Power System Technology,2006,30(12):53-57(in Chinese).
- [12]陈灿,王希林,贾志东,等.基于高分子结晶分析方法的液体硅橡胶老化机制研究[J].中国电机工程学报,2014,34(9):1462-1470.Chen Can,Wang Xilin,Jia Zhidong,et al.A polymer crystallization based study on the degradation mechanism of liquid silicone rubber[J].Proceedings of the CSEE,2014,34(9):1462-1470(in Chinese).
- [13]傅佳,覃永雄,王勇,等.248 nm紫外激光照射高温硫化硅橡胶实验及老化机理探讨[J].电网技术,2012,36(11):277-282.Fu Jia,Qin Yongxiong,Wang Yong,et al.248 nm ultraviolet laser radiation experiment of high temperature vulcanized silicone rubber and its accelerated ageing mechanism[J].Power System Technology,2012,36(11):277-282(in Chinese).
- [14]陈晓春,郑敏聪,李建华.合成绝缘子硅橡胶伞群材料的老化特性及其红外光谱研究[J].中国电机工程学报,2012,32(z1):57-62.Chen Xiaochun,Zheng Mincong,Li Jianhua.Aging characteristics of silicone rubber composite insulator sheds studied by infrared spectroscopy[J].Proceedings of the CSEE,2012,32(z1):57-62(in Chinese).
- [15]常铁军,刘喜军.材料近代分析测试方法[M].哈尔滨:哈尔滨工业大学出版社,2011:113-123,233-246.
- [16]郑和敏,任长玉,蒋舰,等.硅橡胶憎水性的恢复机理研究进展[J].高压电器,2000,46(4):38-41.Zheng Hemin,Ren Changyu,Jiang Jian,et al.Study on the recovery of hydrophobicity of silicone rubber[J].High Voltage Apparatus,2000,46(4):38-41(in Chinese).
- [17]Smith P J,Owen M J,Holm P H,et al.Surface studies of corona-treated silicone rubber high-voltage insulation[C]//Electrical Insulation and Dielectric Phenomena.Victoria,BC:IEEE,1992:829-836.