Effect of Interaction Zone on Short-Time Breakdown of NanoAl<sub>2</sub>O<sub>3</sub>-Epoxy Composites

doi:10.7652/xjtuxb201612004

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Effect of Interaction Zone on Short-Time Breakdown of NanoAl₂O₃-Epoxy Composites

更新时间：2025-07-09

- Effect of Interaction Zone on Short-Time Breakdown of NanoAl₂O₃-Epoxy Composites
- Vol. 50, Issue 12, Pages: 18-23+154(2016)
- 作者机构：
  
  国家电网江西省电力科学研究院,南昌,330096
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201612004
  CLC： TM215.1
- Online First：10 December 2016，
  
  Published：2016
- 稿件说明：
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Effect of Interaction Zone on Short-Time Breakdown of NanoAl₂O₃-Epoxy Composites[J]. 2016, 50(12): 18-23+154. DOI: 10.7652/xjtuxb201612004.
DOI：

Effect of Interaction Zone on Short-Time Breakdown of NanoAl₂O₃-Epoxy Composites[J]. 2016, 50(12): 18-23+154. DOI: 10.7652/xjtuxb201612004. DOI：

摘要

为了对纳米复合电介质的电气性能变化与显微结构之间的关系进行深入研究

以双酚A型环氧树脂为基体

通过机械分散法制备了不同浓度的纳米Al

-环氧树脂复合电介质。利用扫描电镜对试样的断面进行了观测

研究了不同含量的纳米粒子对复合电介质介电响应和工频击穿特性的影响。结果表明:纳米粒子在环氧树脂基体中分散均匀; 随着掺杂量的增加

复合材料的介电常数和低频损耗先下降后上升

在纳米粒子质量分数为1%时达到最低; 工频击穿场强先增大后减小

在纳米粒子质量分数为1%时达到最大

为43 400 V/mm

相对纯环氧树脂提高约11.8%。分析认为

纳米粒子与环氧树脂之间形成的交互区是影响短时击穿的主要因素。微量掺杂时

交互区的厚度小于载流子的自由程

抑制载流子迁移

进而增大击穿场强

随着纳米掺杂量提高

交互区会发生重叠

降低击穿场强。

Abstract

To investigate the interrelation of nano-composite dielectrics between electrical performance and microstructure

nanoAl

-epoxy composites are prepared by mechanical dispersion method. It is observed by SEM that nanoAl

particles are well dispersed in epoxy matrix. The effects of nanoAl

on dielectric response and breakdown of epoxy are studied by dielectric property test and breakdown examination. With the increasing filler loading

the dielectric constant decreases first and then increases

and reaches the lowest when the mass fraction of nanoAl

gets 1%. The breakdown field stre

ngth has the opposite trend: it increases first and then decreases

and reaches the highest value of 43 400 V when the mass fraction of nanoAl

gets 1%

increasing by 11.8% compared with pure epoxy. It is indicated that interaction zone between nanoparticle and epoxy matrix plays an important role in short-time breakdown. When the content of the particles is small

the thickness of interaction zone is less than the carriers' free path to block carriers to migrate

so the breakdown field strength increases. When the content increases

the overlapped interaction zone leads a lower breakdown field strength.

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references

邓华阳, 王小峰, 曹琪, 等. 多壁碳纳米管/环氧树脂复合材料的制备及性能 [J]. 高分子材料科学与工程, 2011, 27(11): 149-152.

DENG Huayang, WANG Xiaofeng, CAO Qi, et al. Preparation and properties of multi-walled carbon nanotubes/epoxy composites [J]. Polymer Materials Science & Engineering, 2011, 27(11): 149-152.

TAKAHIRO I, FUMIO S, TAMON O, et al. Comparison of insulation breakdown properties of epoxy nanocomposites under homogeneous and divergent electric fields [C]∥2006 Annual Report Conference on Electrical Insulation and Dielectric Phenomena. Piscataway, NJ, USA: IEEE, 2006: 306-309.

RAMU T S, NAGAMANI H N. Alumina and silica based epoxy nano-composites for electrical insulation [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2014, 21(1): 236-243.

ZHE L, OKAMATO K, OHKI Y, et al. The role of nano and micro particles on partial discharge and breakdown strength in epoxy composites [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18(3): 675-681.

LI S T, YIN G L, 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.

LEWIS T J. Interfaces are the dominant feature of dielectric at the nanometric level [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2004, 11(5): 739-753.

LEWIS T J. Interfaces: nanometric dielectrics [J]. Journal of Physics: D Applied Physics, 2005, 38(2): 202-212.

TANAKA T, FUSE N, OHKI Y. Proposal of a multi-core model for polymer nanocomposite dielectrics [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2005, 12(4): 669-681.

MA D, HUGENER T A, SIEGEL R W, et al. Influence of nanoparticle surface modification on the electrical behavior of polyethylene nanocomposites [J]. Nanotechnology, 2005, 16(6): 724-731.

PISSIS P, FRAGIADAKIS D, KANAPITSAS A, et al. Broadband dielectric relaxation spectroscopy in polymer nanocomposites [J]. Macromolecular Symposia, 2008, 265(1): 12-20.

MIJOVIC J, ZHANG H. Local dynamics and molecular origin of polymer network-water interactions as studied by broadband dielectric relaxation spectroscopy, FTIR, and molecular simulations [J]. Macromolecules, 2003, 36(4): 1279-1288.

YANG C, IRWIN P C. The future of nanodielectrics in the electrical power industry [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2004, 11(5): 797-807.

NELSON J K, FOTHERGILL J C. Internal charge behavior of nanocomposites [J]. Nanotechnology, 2004, 15(5): 586-595.

NELSON J K, HU Y, THITICHAROENPONG J. Electrical properties of TiO2 nanocomposites [C]∥2003 Annual Conference on Electrical Insulation and Dielectric Phenomena. Piscataway, NJ, USA: IEEE, 2003: 719-722.

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.

LI S T, YIN G L, BAI S N, et al. A new potential barrier model in epoxy resin nanodielectrics [J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2011, 18(5): 1535-1543.

BAMFORD D, JONES M, LATHAM J, et al. Aniso-tropic nature of open volume “defects” in highly crystalline polymers [J]. Macromolecules, 2001, 34(23): 8156-8159.

DLUBEK G, STEJNY J, LÜPKE T, et al. Free-volume variation in polyethylenes of different crystallinities: positron lifetime, density, and X-ray studies [J]. Journal of Polymer Science: Part B Polymer Physics, 2002, 40(1): 65-81.

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Effect of Interaction Zone on Short-Time Breakdown of NanoAl2O3-Epoxy Composites

DOI：10.7652/xjtuxb201612004

摘要

Abstract

关键词

Keywords

references

Effect of Interaction Zone on Short-Time Breakdown of NanoAl₂O₃-Epoxy Composites