纳米TiO2光催化薄膜在陶瓷绝缘子防污闪中的应用
Application of Photo-Induced Nano-TiO2 Film to Anti-pollution Flashover of Ceramic Insulator
摘 要
利用喷涂技术将纳米TiO2溶胶涂覆于陶瓷绝缘子表面, 经热处理制备了光催化自清洁陶瓷绝缘子, 利用XRD、SEM和TEM等手段对纳米TiO2薄膜的晶型、形貌、厚度和晶粒大小进行表征, 通过模拟积污试验和工频湿耐受试验评估了纳米TiO2膜对陶瓷绝缘子自洁能力和电气性能的影响。结果表明: 光自洁绝缘子的表面灰密度(NSDD)仅为普通陶瓷绝缘子的47%, 而其工频湿耐受电压水平较普通绝缘子提升了9.4%。
陶瓷绝缘子
光自清洁
防污闪
TiO2 film
ceramic insulator
photo-induced self-cleaning
anti-pollution flashover
Abstract
A certain amount of nano-sized TiO2 colloid was sprayed on the ceramic insulator surface to prepare the photo-induced self-cleaning insulators with subsequent heat treatment. The crystal form, grain size, morphology and thickness of the nano-TiO2 film coated on the ceramic surface were characterized by X-ray diffraction, transmisson electron microscopy and scanning electron microscopy. The effects of nano-TiO2 film on the self-cleaning and electrical properties of the ceramic insulators were evaluated by the artificial accelerated polluted test and the AC withstand test. The results show that the average nonsoluble deposit density (NSDD) value of the TiO2-coated insulators was only 47% that of the normal ceramic insulators, and the AC withstand voltage level of the former was 9.4% higher than that of the latter.
中图分类号 TM216 TM281
所属栏目 纳米材料
基金项目 国家电网资助项目(SGKJ[2007]135)
收稿日期 2011/8/22
修改稿日期 2012/6/1
网络出版日期
作者单位点击查看
备注庄建东(1984-), 男, 福建福州人, 助理研究员, 博士。
引用该论文: ZHUANG Jian-dong,ZENG Wen-lin,LIU Ping,DAI Wen-xin,LIU Qian. Application of Photo-Induced Nano-TiO2 Film to Anti-pollution Flashover of Ceramic Insulator[J]. Materials for mechancial engineering, 2012, 36(9): 85～88
庄建东,曾文琳,刘平,戴文新,刘茜. 纳米TiO2光催化薄膜在陶瓷绝缘子防污闪中的应用[J]. 机械工程材料, 2012, 36(9): 85～88
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参考文献
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【7】FUJISHIMA A, RAO T N, TRYK D A. Titanium dioxide photocatalysis [J].Journal of Photochemistry and Photobiology C: Chemical Review, 2000, 1: 1-21.
【8】ZHUANG J D, LIU P, DAI W X, et al., A Novel Application of Nano Anticontamination Technology for Outdoor High-Voltage Ceramic Insulators[J].International Journal of Applied Ceramic Technology, 2010, 7(S1): E46-53.
【9】GOLDMAN M, SIGMOND R S. Corona and insulator [J]. IEEE Transaction on Electrical Insulation Magazine, 1982, 17(2): 90-105.
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