Influence of nanoparticle surfaces on the electrical breakdown strength of nanoparticle-filled low-density polyethylene

Dongling Ma; Richard W. Siegel; Jung Il Hong; Linda S. Schadler; Eva Mårtensson; Carina Önneby

doi:10.1557/jmr.2004.0111

Influence of nanoparticle surfaces on the electrical breakdown strength of nanoparticle-filled low-density polyethylene

Dongling Ma, Richard W. Siegel, Jung Il Hong, Linda S. Schadler, Eva Mårtensson, Carina Önneby

Department of Physics and Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The electrical breakdown strength of TiO₂ nanoparticle-filled low-density polyethylene (LDPE) nanocomposites was investigated. It was found that the surface water on the nanoparticles played a very important role in determining the breakdown strength. The breakdown strength at 63.2% cumulative failure probability (E₀) for the composites filled with dried nanoscale TiO₂ was similar to that of neat LDPE and 50% higher than that for the samples filled with as-received nanoscale TiO₂. This increase was due to a better dispersion, a better interface, and a morphology change of the matrix. It was also found that surface modification of nanoscale TiO₂ had a significant influence on the breakdown strength. N-(2-aminoethyl) 3-aminopropyl-trimethoxysilane (AEAPS)-coated TiO₂-filled samples showed about 40% higher E₀ than that of uncoated, as-received TiO₂-filled samples. This was mainly due to enhanced electron scattering because of the presence of polar groups in AEAPS.

Original language	English
Pages (from-to)	857-863
Number of pages	7
Journal	Journal of Materials Research
Volume	19
Issue number	3
DOIs	https://doi.org/10.1557/jmr.2004.0111
State	Published - Mar 2004

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title = "Influence of nanoparticle surfaces on the electrical breakdown strength of nanoparticle-filled low-density polyethylene",

abstract = "The electrical breakdown strength of TiO2 nanoparticle-filled low-density polyethylene (LDPE) nanocomposites was investigated. It was found that the surface water on the nanoparticles played a very important role in determining the breakdown strength. The breakdown strength at 63.2\% cumulative failure probability (E0) for the composites filled with dried nanoscale TiO2 was similar to that of neat LDPE and 50\% higher than that for the samples filled with as-received nanoscale TiO2. This increase was due to a better dispersion, a better interface, and a morphology change of the matrix. It was also found that surface modification of nanoscale TiO2 had a significant influence on the breakdown strength. N-(2-aminoethyl) 3-aminopropyl-trimethoxysilane (AEAPS)-coated TiO2-filled samples showed about 40\% higher E0 than that of uncoated, as-received TiO2-filled samples. This was mainly due to enhanced electron scattering because of the presence of polar groups in AEAPS.",

author = "Dongling Ma and Siegel, \{Richard W.\} and Hong, \{Jung Il\} and Schadler, \{Linda S.\} and Eva M{\aa}rtensson and Carina {\"O}nneby",

year = "2004",

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T1 - Influence of nanoparticle surfaces on the electrical breakdown strength of nanoparticle-filled low-density polyethylene

AU - Ma, Dongling

AU - Siegel, Richard W.

AU - Hong, Jung Il

AU - Schadler, Linda S.

AU - Mårtensson, Eva

AU - Önneby, Carina

PY - 2004/3

Y1 - 2004/3

N2 - The electrical breakdown strength of TiO2 nanoparticle-filled low-density polyethylene (LDPE) nanocomposites was investigated. It was found that the surface water on the nanoparticles played a very important role in determining the breakdown strength. The breakdown strength at 63.2% cumulative failure probability (E0) for the composites filled with dried nanoscale TiO2 was similar to that of neat LDPE and 50% higher than that for the samples filled with as-received nanoscale TiO2. This increase was due to a better dispersion, a better interface, and a morphology change of the matrix. It was also found that surface modification of nanoscale TiO2 had a significant influence on the breakdown strength. N-(2-aminoethyl) 3-aminopropyl-trimethoxysilane (AEAPS)-coated TiO2-filled samples showed about 40% higher E0 than that of uncoated, as-received TiO2-filled samples. This was mainly due to enhanced electron scattering because of the presence of polar groups in AEAPS.

AB - The electrical breakdown strength of TiO2 nanoparticle-filled low-density polyethylene (LDPE) nanocomposites was investigated. It was found that the surface water on the nanoparticles played a very important role in determining the breakdown strength. The breakdown strength at 63.2% cumulative failure probability (E0) for the composites filled with dried nanoscale TiO2 was similar to that of neat LDPE and 50% higher than that for the samples filled with as-received nanoscale TiO2. This increase was due to a better dispersion, a better interface, and a morphology change of the matrix. It was also found that surface modification of nanoscale TiO2 had a significant influence on the breakdown strength. N-(2-aminoethyl) 3-aminopropyl-trimethoxysilane (AEAPS)-coated TiO2-filled samples showed about 40% higher E0 than that of uncoated, as-received TiO2-filled samples. This was mainly due to enhanced electron scattering because of the presence of polar groups in AEAPS.

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DO - 10.1557/jmr.2004.0111

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SP - 857

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JO - Journal of Materials Research

JF - Journal of Materials Research

IS - 3

ER -

Influence of nanoparticle surfaces on the electrical breakdown strength of nanoparticle-filled low-density polyethylene

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