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电压稳定剂修饰纳米SiO2提升低密度聚乙烯直流电气特性的研究 认领

Effect of Voltage Stabilizer Modified Nano-SiO2 on DC Electrical Properties of Low Density Polyethylene
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摘要 该文制备了苯偶酰型电压稳定剂和硅烷偶联剂改性的SiO2纳米粒子,与未改性的纳米粒子分别添加到低密度聚乙烯(lowdensitypolyethylene,LDPE)中,得到3种纳米复合材料。研究发现,电压稳定剂改性的SiO2纳米粒子在LDPE中的分散性最好,可提高纳米复合材料的拉伸强度和断裂伸长率。3种纳米粒子的加入均改变了LDPE样品电极附近空间电荷的极性,与纳米粒子的表面化学状态无关。表面化学状态不同的纳米粒子均可抑制LDPE中空间电荷的注入和积聚,但电压稳定剂改性的纳米SiO2在增强LDPE击穿方面效果最好,添加质量分数为1%时直流击穿场强可提高38.7%。表面电势衰减测试显示,电压稳定剂改性的纳米SiO2的加入大幅提高了纳米复合材料中的陷阱深度和密度。击穿场强增加是纳米粒子均匀分散、表面存在电压稳定剂,以及引起陷阱密度与深度增加等因素共同作用的结果。 Benzil derivative voltage stabilizer modified nano-silica(SiO2-BVA),silane coupling agent modified nano-silica,nano-silica and their corresponding low-density polyethylene(LDPE)nanocomposites were prepared.It was found that among the three types of nanocomposites,SiO2-BVA shows the best dispersion and exhibits enhancement effect on the tensile strength and elongation at break of LDPE.Compared with LDPE,the polarity of the space charges near two electrodes is altered and it is not independent on the surface chemistry of the nano-silica.Each type of nano-silica can suppress the injection and build-up of the space charges in LDPE and it is also independent on the surface chemistry of the nano-silica,while SiO2-BVA shows the best enhancement effect on the direct current breakdown strength of LDPE,and the characteristic breakdown strength of the nanocomposite with 1%SiO2-BVA was increased by 38.7%in comparison with LDPE.It is suggested that the enhanced breakdown strength results from the homogeneous nano-silica dispersion,the introduced voltage stabilizer on nano-silica surface and the increased depth and density of traps in the nanocomposites.
作者 高雅涵 黄兴溢 江平开 闵道敏 李盛涛 GAO Yahan;HUANG Xingyi;JIANG Pingkai;MIN Daomin;LI Shengtao(Shanghai Key Laboratory of Electrical Insulation and Thermal Aging(Shanghai Jiao Tong University),Minhang District,Shanghai 220240,China;State Key Laboratory of Electrical Insulation and Power Equipment(Xi'an Jiaotong University),Xi'an 710049,Shaanxi Province,China)
出处 《中国电机工程学报》 EI CSCD 北大核心 2020年第1期330-337,共8页 Proceedings of the CSEE
基金 国家自然科学基金项目(51877132) 国家重点基础研究发展计划项目(973项目)(2014CB2239503)。
关键词 低密度聚乙烯 纳米复合材料 电压稳定剂 空间电荷 击穿强度 陷阱 low density polyethylene(LDPE) nanocomposites voltage stabilizer space charge breakdown strength trap
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  • 1宫斌,张冶文,郑飞虎,朱建伟,吴长顺.纳米TiO2掺杂对低密度聚乙烯空间电荷行为的影响[J].材料研究学报,2005,19(5):519-524. 被引量:11
  • 2Fu M, Dissado L A, Chen G, et al. Space charge formation and its modified electric field under applied voltage reversal and tem- perature gradient in XLPE cable [J]. IEEE Transactions on Die- lectrics and Electrical Insulatione 2008, 15(3): 851-860. 被引量:1
  • 3Zhang Y, Lewiner J, Alquie C, et al. Evidence of strong corre- lation between space-charge buildup and breakdown in cable in- sulation[J]. IEEE Transactions on Dielectrics and Electrical In- sulation, 1996, 3: 778-783. 被引量:1
  • 4Tanaka T, Bulinski A, Castellon J,et al. Dielectric properties of XLPE/SiO2 nanocomposites based on CIGRE WG D1.24 coop- erative test results[J] IEEE Transactions on Dielectrics and E- lectrical Insulation, 2011, 18(5) :1484-1517. 被引量:1
  • 5Takada T, t-Iayase Y, Tanaka Y ,et al. Space charge trapping in electrical potential well caused by permanent and induced di- poles for LDPE-MgO Nanocomposite [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(1): 152-160. 被引量:1
  • 6Fleming R J, Ammala A, Casey P S, et al. Conductivity and space charge in LDPE/BaSrTiO3 nanoeomposites [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18 (1) : 15-23. 被引量:1
  • 7Mahdavi S, Zhang Y, Alquie C, et al. Determination of space charge distributions in polyethylene samples submitted to 120 kV DC voltage [J]. IEEE Transactions on Dielectrics and E]ec- trical Insulation, 1991, 26(1) Zhang Y, Alquie C, Lewiner J 57-62. 被引量:1
  • 8EFfect of the thickness of insula tors on the build up of a space charge distribution[C]//8th In ternational Symposium on Electrets. Paris, France : IEEE, 1994 928-'933. 被引量:1
  • 9Kadowaki K, Mitsunari S, Yoshioka H, et al. Influence of thickness on field distortion due to space charge migration in LDPE sheet [C]//Proceedings of 2008 International Symposi- um on Electrical Insulating Materials. Yokkaichi, Mie, Japan: IEEE, 2008: 127-130. 被引量:1
  • 10Dissado L A. The origin and nature of 'charge packets:: a short review[C]//2010 International Conference on Solid Die- lectrics. Potsdam, Germany: IEEE, 2010: 1-6. 被引量:1

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