A Comparative Study on the High Frequency Creeping Discharge Lifetime of Two Kinds of Functionalized Siloxy-Containing Polyimide Films
Ding Zian1, Huang Xuwei2, Li Qingmin1, Guo Yujin1, Lin Jun1
1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing 102206 China; 2. College of Automations Chongqing University of Posts and Telecommunications Chongqing 400065 China
Abstract：Polyimide can be used as an insulating material for high frequency power transformers, but it is faced with the problem of insulation failure due to creeping discharge, which can be improved by material modification technology. This paper introduced 1, 3-bis (3-aminopropyl) -1, 1, 3, 3-tetramethyldisiloxane (GAPD) with 1%, 2% and 5% molar content and equivalent content of SiO2, respectively, and modified polyimide films by molecular structure and nanocomposite to functionalize its silicon oxygen. The physical and chemical properties of materials such as ultraviolet spectrum, scanning electronic microscope (SEM) and resistivity were studied and compared. The high frequency creeping discharge life of materials was mainly tested. The results show that the basic physical and chemical properties of the polyimide modified by the two methods are excellent, such as thermal and mechanical properties. After adding 5% SiO2, the electrical life of the film can be increased to 3.4 times that of pure polyimide, while after adding 5% GAPD, the electrical life of the film can be increased to 4.77 times that of pure polyimide. The influence mechanism of the two modification methods is different. Adding SiO2 is to introduce the crystal of Si-O-Si structure to form a nanocomposite system, and improves the high frequency creeping discharge resistance of the material through interface and other actions. Adding GAPD is to introduce Si-O-Si network with uniform distribution and no phase separation into polyimide, making the matrix structure more compact. At the same time, uniform flocculent inorganic particles are formed after the outer layer is destroyed, and the synergy of multiple factors can effectively improve the high frequency creeping discharge life of the material. Modifying the molecular structure of polyimide by GAPD can functionalize its silicon oxygen and obtain more excellent physical and chemical properties and discharge resistance, which has potential application value.
丁梓桉, 黄旭炜, 李庆民, 郭玉金, 林俊. 两种功能化硅氧基聚酰亚胺薄膜的高频沿面放电寿命对比研究[J]. 电工技术学报, 2021, 36(13): 2719-2729.
Ding Zian, Huang Xuwei, Li Qingmin, Guo Yujin, Lin Jun. A Comparative Study on the High Frequency Creeping Discharge Lifetime of Two Kinds of Functionalized Siloxy-Containing Polyimide Films. Transactions of China Electrotechnical Society, 2021, 36(13): 2719-2729.
[1] 毛承雄, 范澍, 王丹, 等. 电力电子变压器的理论及其应用(I)[J]. 高电压技术, 2003, 29(10): 4-6. Mao Chengxiong, Fan Shu, Wang Dan, et al.Theory of power electronic transformer and its applica- tions(I)[J]. High Voltage Engineering, 2003, 29(10): 4-6. [2] 毛承雄, 范澍, 黄贻煜, 等. 电力电子变压器的理论及其应用(II)[J]. 高电压技术, 2003, 29(12): 1-3. Mao Chengxiong, Fan Shu, Huang Yiyu, et al.Theory of power electronic transformer and its applications(II)[J]. High Voltage Engineering, 2003, 29(12): 1-3. [3] 刘学忠, 吴章伟, 钟力生, 等. 纳米粉末填充绝缘在变频电机中的电场均匀化效应[J]. 电气技术, 2004, 5(12): 7-13. Liu Xuezhong, Wu Zhangwei, Zhong Lisheng, et al.Electric field homogenization effect of nano powder filled insulation in variable frequency motor[J]. Electrical Engineering, 2004, 5(12): 7-13. [4] Baek S, Du Yu, Wang Gangyao.Design conside- rations of high voltage and high frequency trans- former for solid state transformer application[C]// IECON 2010-6th Annual Conference on IEEE Industrial Electronics Society, North Carolina State, 2010: 421-426. [5] 韩帅, 李庆民, 刘伟杰, 等. 频变电应力下高频电力变压器绝缘沿面放电形态及发展过程[J]. 电工技术学报, 2016, 31(19): 199-207. Han Shuai, Li Qingmin, Liu Weijie, et al.Impacts of coupled temperature-frequency effects on partial discharge characteristics of high frequency solid state transformer insulation[J]. Transactions of China Electrotechnical Society, 2016, 31(19): 199-207. [6] Huang Yi, Qin Jiaqiang, Gu Yi.Polyimide-silica hybrid films made from polyamic acids containing phenolic hydroxyl groups[J]. Journal of Applied Polymer Science, 2004, 93(3): 1198-1202. [7] Zha Junwei, Song Hongtao, Dang Zhimin, et al.Mechanism analysis of improved corona-resistant characteristic in polyimide/TiO2 nanohybrid films[J]. Applied Physics Letters, 2008, 93(19): 192911-192913. [8] 张明玉, 刘立柱, 翁凌, 等. 溶胶-凝胶法在聚酰亚胺表面沉积氧化铝薄膜及性能[J]. 中国电机工程学报, 2014, 34(12): 1965-1971. Zhang Mingyu, Liu Lizhu, Weng Ling, et al.Fabrication and properties of polyimide film with aluminum oxide thin films via Sol-Gel method[J]. Proceedings of the CSEE, 2014, 34(12): 1965-1971. [9] 吴广宁, 张兴涛, 杨雁, 等. 方波脉冲下不同纳米添加物对聚酰亚胺薄膜电气性能影响[J]. 高电压技术, 2017, 43(12): 3819-3826. Wu Guangning, Zhang Xingtao, Yang Yan, et al.Effects of different nano fillers on electrical pro- perties of polyimide films under impulse voltage[J]. High Voltage Engineering, 2017, 43(12): 3819-3826. [10] 董铁权. PI/SiO2纳米薄膜力学性能及电性能研究[D]. 哈尔滨: 哈尔滨理工大学, 2007. [11] 张沛红. 无机纳米—聚酰亚胺复合薄膜介电性及耐电晕老化机理研究[D]. 哈尔滨: 哈尔滨理工大学, 2006. [12] 黄旭炜, 舒想, 王健, 等. 含苯硫醚基团的低介损聚酰亚胺薄膜合成及其性能调控机制[J]. 中国电机工程学报, 2019, 39(15): 4623-4633. Huang Xuwei, Shu Xiang, Wang Jian, et al.Synthesis and performance modification mechanism of low dielectric loss polyimide films with phenylthioether group[J]. Proceedings of the CSEE, 2019, 39(15): 4623-4633. [13] 苏源, 黄伟, 耿嘉阳, 等. 有机硅聚酰亚胺的研究进展及应用[J]. 化学与黏合, 2016, 38(3): 222-224. Su Yuan, Huang Wei, Geng Jiayang, et al.Research progress and application of organic silicon polyi- mide[J]. Chemistry and Adhesion, 2016, 38(3): 222-224. [14] 雷星锋. 功能型聚酰亚胺/硅膜材料构筑与性能研究[D]. 西安: 西北工业大学, 2016. [15] 丁孟贤. 聚酰亚胺——化学、结构与性能的关系及材料[M]. 2版. 北京: 科学出版社, 2017. [16] Chen Tianan, Jen Alex K Y, Cai Yongming. Two- step synthesis of side-chain aromatic polyimides for second-order nonlinear optics[J]. Macromolecules, 1996, 29(2): 535-539. [17] 谢东日, 闵道敏, 黄印, 等. 纳米复合电介质击穿与耐电晕性的纳米掺杂效应[J]. 中国电机工程学报, 2018, 38(19): 5909-5918, 5949. Xie Dongri, Min Daomin, Huang Yin, et al.Nano- doping effects on dielectric breakdown and corona- resistance properties of polymeric nanocomposites[J]. Proceedings of the CSEE, 2018, 38(19): 5909-5918, 5949. [18] Huang Xuwei, Wang Jian, Li Qingmin, et al.Impact of the phenyl thioether contents on the high frequ- ency dielectric loss characteristics of the modified polyimide films[J]. Surface and Coatings Technology, 2019, 360: 205-212. [19] 黄旭炜, 倪潇茹, 王健, 等. 苯硫醚聚酰亚胺电极覆膜材料合成及直流应力下对金属微粒运动特性的抑制作用[J]. 电工技术学报, 2018, 33(20): 4712-4721. Huang Xuwei, Ni Xiaoru, Wang Jian, et al.Synthesis of phenyl-thioether polyimide as the electrode coating film and its suppression effect on motion behavior of the metal particles under DC stresses[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4712-4721. [20] 张晓虹, 石泽祥, 张双, 等. 基于局部放电特征研究蒙脱土/聚乙烯纳米复合材料的电树枝性能[J]. 电工技术学报, 2019, 34(23): 5049-5057. Zhang Xiaohong, Shi Zexiang, Zhang Shuang, et al.Investigation on electrical tree resistance property of montmorillonite/polyethylene nanocomposites based on partial discharge characteristics[J]. Transactions of China Electrotechnical Society, 2019, 34(23): 5049-5057. [21] 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会. GB/T 1410-2006 固体绝缘材料体积电阻率和表面电阻率试验方法[S]. 2006. [22] 贾志东, 关志成. 沿有机硅表面染污放电现象的研究[J]. 电工电能新技术, 2000, 19(3): 21-26. Jia Zhidong, Guan Zhicheng.Study on discharge along polluted surface with silicone coating[J]. Advanced Technology of Electrical Engineering and Energy, 2000, 19(3): 21-26. [23] 赵义焜, 张国强, 韩冬, 等. 高频变压器用匝间绝缘材料沿面放电特性的实验研究[J]. 电工技术学报, 2019, 34(16): 3464-3471. Zhao Yikun, Zhang Guoqiang, Han Dong, et al.Study on surface discharge characteristics of inter-turn insulation materials in high-frequency transfor- mers[J]. Transactions of China Electrotechnical Society, 2019, 34(16): 3464-3471. [24] Niemeyer L.A generalized approach to partial discharge modeling[J]. IEEE Transactions on Diele- ctrics and Electrical Insulation, 1995, 2(4): 510-528. [25] Li Shengtao, Yin Guilai, Chen G, et al.Short-term breakdown and long-term failure in nanodielectrics: a review[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2010, 17(5): 1523-1535. [26] 金维芳. 电介质物理学[M]. 2版. 北京: 机械工业出版社, 1997. [27] 张兴涛, 吴广宁, 杨雁, 等. 聚酰亚胺纳米复合薄膜耐电晕机理研究[J]. 绝缘材料, 2016, 49(8): 17-20, 25. Zhang Xingtao, Wu Guangning, Yang Yan, et al.Research on corona resistance mechanism of polyi- mide nano composite films[J]. Insulating Materials, 2016, 49(8): 17-20, 25. [28] 石泽祥. MMT/SiO2/LDPE微纳米复合电介质结构形态与电学性能的研究[D]. 哈尔滨: 哈尔滨理工大学, 2019. [29] 冯宇, 殷景华, 陈明华, 等. 聚酰亚胺/TiO2纳米杂化薄膜耐电晕性能的研究[J]. 中国电机工程学报, 2013, 33(22): 142-147. Feng Yu, Yin Jinghua, Chen Minghua, et al.Study on corona-resistance of the polyimide/nano-TiO2 hybrid films[J]. Proceedings of the CSEE, 2013, 33(22): 142-147. [30] 莫雅俊, 张灵, 周远翔, 等. 基于理化分析的热老化聚酰亚胺薄膜的电导特性[J]. 高电压技术, 2019, 45(4): 1241-1248. Mo Yajun, Zhang Ling, Zhou Yuanxiang, et al.Conduction current characteristics of thermally aged polyimide films based on physico-chemical analysis[J]. High Voltage Engineering, 2019, 45(4): 1241-1248. [31] 张兴涛, 吴广宁, 杨雁, 等. 介质阻挡放电等离子体处理对聚酰亚胺表面放电的影响[J]. 高电压技术, 2018, 44(9): 3097-3104. Zhang Xingtao, Wu Guangning, Yang Yan, et al.Influence of dielectric barrier discharge plasma treatment on the surface discharge of polyimide film[J]. High Voltage Engineering, 2018, 44(9): 3097-3104. [32] 刘仪, 许晓洲, 莫松, 等. 含硅氧烷结构聚酰亚胺树脂的耐热稳定性及高温结构演变[J]. 高等学校化学学报, 2019, 40(1): 187-194. Liu Yi, Xu Xiaozhou, Mo Song, et al.Thermal stability of polyimide resins containing siloxane structure and their high temperature structural evolu- tion[J]. Chemical Journal of Chinese Universities, 2019, 40(1): 187-194.
2021, Vol. 36 
