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纳米粒子分散性对SiO2/LDPE纳米复合介质直流介电性能的影响

DOI: 10.13334/j.0258-8013.pcsee.2015.19.028, PP. 5087-5094

Keywords: 纳米复合介质,SiO2,LDPE,直流介电性能,荷电区

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Abstract:

纳米复合介质的介电性能与纳米粒子分散性密切相关。选取两种具有不同分散能力的纳米SiO2粉末分别与低密度聚乙烯(lowdensitypolyethylene,LDPE)复合,研究了纳米粒子分散性对纳米复合介质的直流电导电流、空间电荷及直流击穿强度特性影响。应用原子力显微镜的静电力模式观察了SiO2/LDPE纳米复合介质的表面电势分布。结果表明:改善纳米粒子分散性对于抑制SiO2/LDPE复合介质的直流电导电流,提高空间电荷抑制能力及直流击穿强度有积极影响。通过静电力分析证实了SiO2/LDPE纳米复合介质中,SiO2粒子与基体聚合物界面存在荷电分布,该荷电分布可对载流子迁移起散射作用,从而降低直流电到电流和提升击穿强度。通过引入观测的界面核电区厚度参数,理论计算证实了改善纳米粒子分散性可增加单位体积荷电域所占的体积分数,且被认为是高分散型SiO2/LDPE纳米复合介质介电性能显著提升的主要原因。

References

[1]  Hanley T L,Burford R P,Fleming R J.A general review of polymeric insulation for use in HVDC cables[J].IEEE Electrical Insulation Magazine,2003,19(1):13-23.
[2]  Boggs S,Dwight H,Hjerrild J,et al.Effect of insulation properties on the field grading of solid dielectric DC cable[J].IEEE Transactions on Power Delivery,2001,16(4):456-461.
[3]  Chen X,Wang X,Wu K,et al.Effect of voltage reversal on space charge and transient field in LDPE films under temperature gradient[J].IEEE Transactions on Dielectrics and Electrical Insulation,2012,19(1):140-149.
[4]  Chen X,Wang X,Wu K,et al.Space charge measurement in LDPE films under temperature gradient and DC stress[J].IEEE Transactions on Dielectrics and Electrical Insulation,2010,17(6):1796-1805.
[5]  Dissado L A,Laurent C,Montanari G C,et al.Demonstrating a threshold for trapped space charge accumulation in solid dielectrics under dc field[J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(3):612-620.
[6]  Fleming R,Ammala A,Casey P,et al.Conductivity and space charge in LDPE containing nano-and micro-sized ZnO particles[J].IEEE Transactions on Dielectrics and Electrical Insulation,2008,15(1):118-125.
[7]  Fleming R,Pawlowski T,Ammala A,et al.Electrical conductivity and space charge in LDPE containing TiO 2 nanoparticles[J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(4):745-753.
[8]  韩柏,孙志,何丽娟,等.LDPE中掺入浮石粉对其空间电荷分布特性的影响[J].高电压技术,2010,36(6):1398-1402.Han Bai,Sun Zhi,He Lijuan,et al.Space charge distribution in low-density polyethylene(LDPE)/pumice composite,high voltage engineering[J].High Voltage Engineering,2010,36(6):1398-1402(in Chinese).
[9]  成霞,陈少卿,王霞,等.纳米ZnO对聚乙烯电老化过程中空间电荷及击穿特性的影响[J].绝缘材料,2008,41(l):44-48.Cheng Xia,Chen Shaoqing,Wang Xia,et al.Effect of nano-ZnO on space charge distribution in polyethylene during corona aging[J].Insulating Materials,2008,41(l):44-48(in Chinese).
[10]  Yin Y,Chen J,Yang J,et al.Effect of space charge in nanocomposite of LDPE/TiO 2 [C]//Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials.Nagoya.Japan:IEEE Dielectrics and Electrical Insulation Society,2003:913-916.
[11]  Roy M,Nelson J K,MacCrone R K,et al.Polymer nanocomposite dielectrics-the role of the interface [J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(4):629-643.
[12]  Murakami Y,Nemoto M,Okuzumi S,et al.DC conduction and electrical breakdown of MgO/LDPE nanocomposite[J].IEEE Transactions on Dielectrics and Electrical Insulation,2008,15(1):33-39.
[13]  赵洪,徐明忠,杨佳明.MgO/LDPE纳米复合材料耐空间电荷及电树枝化特性[J].中国电机工程学报,2012,32(16):196-202.Zhao Hong,Xu Mingzhong,Yang Jiaming,et al.Space charge and electric treeing resistance properties of MgO/LDPE nanocomposite[J].Proceedings of the CSEE,2012,32(16):196-202(in Chinese).
[14]  刘文辉,吴建东,王俏华,等.纳米添加物的粒径对聚合物纳米复合电介质中空间电荷行为的影响[J].中国电机工程学报,2009(增刊):61-66.Liu Wenhui,Wu Jiandong,Wang Qiaohua,et al.Effect of nano additive size on the space charge behaviour in nanocomposite polymer material[J].Proceedings of the CSEE,2009(S):61-66(in Chinese).
[15]  吴建东,尹毅,兰莉,等.纳米填充浓度对LDPE/Silica 纳米复合介质中空间电荷行为的影响[J].中国电机工程学报,2012,32(28):177-183.Wu Jiandong,Yin Yi,Lan Li,et al.The Influence of Nano-filler Concentration on Space Charge Behavior in LDPE/Silica Nanocomposites[J].Proceedings of the CSEE,2012,32(28):177-183(in Chinese).
[16]  Tanaka T,Bulinski A,Castellon J,et al.Dielectric properties of XLPE/SiO 2 nanocomposites based on CIGRE WG D1.24 cooperative test results[J].IEEE Transactions on Dielectrics and Electrical Insulation,2011,18(5):1484-1517.
[17]  Taima J,Inaoka K,Maezawa T,et al.Observation of space charge formation in LDPE/MgO Nano-composite under DC stress at high temperature[C]//Annual Report Conference on Electrical Insulation and Dielectric Phenomena.Kansas,USA:IEEE Dielectrics and Electrical Insulation Society,2006:302-305.
[18]  Murata Y, Murakami Y,Nemoto M,et al.Effects of nano-sized MgO-filler on Electrical Phenomena under DC Voltage Application in LDPE[C]//Proceedings of 2005 Conference on Electrical Insulation and Dielectric Phenomena.Nashville,USA:IEEE Dielectrics and Electrical Insulation Society,2005:158-161.
[19]  Lau K Y,Vaughan A S,Chen G,et al.On the Space charge and DC breakdown behavior of polyethylene/ silica nanocomposites[J].IEEE Transactions on Dielectrics and Electrical Insulation,2014,21(1):340-351.
[20]  Murata Y,Kanaoka M.Development History of HVDC Extruded Cable with Nanocomposite Material[C]// Proceedings of the 8th International Conference on Properties and Applications of Dielectric Materials.Bali,Indonesia,Japan:IEEE Dielectrics and Electrical Insulation Society,2006:460-463.
[21]  杨佳明,王暄,韩宝忠,等.LDPE纳米复合介质的直流电导特性及其对高压直流电缆中电场分布的影响[J].中国电机工程学报,2014,34(9):1454-1461.Yang Jiaming,Wang Xuan,Han Baozhong,et al.DC conductivity characteristic of LDPE nanocomposite and its effect on electric field distribution in HVDC cables [J].Proceedings of the CSEE,2014,34(9):1454-1461(in Chinese).
[22]  Lewis T J.Interfaces are the dominant feature of dielectrics at the nanometric level[J].IEEE Transactions on Dielectrics and Electrical Insulation,2004,11(5):739-753.
[23]  Calebrese C,Hui L,Schadler L S,et al.A review on the importance of nanocomposite processing to enhance electrical insulation[J].IEEE Transactions on Dielectrics and Electrical Insulation,2011,18(4):938-945.
[24]  Tanaka T,Kozako M,Fuse N,et al.Proposal of a multi- core model for polymer nanocomposite dielectrics [J].IEEE Transactions on Dielectrics and Electrical Insulation,2005,12(4):669-681.

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