Possible mechanism of superior partial-discharge resistance of polyamide nanocomposites
Possible mechanism of superior partial-discharge resistance of polyamide nanocomposites
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DOI：
10.1109/ceidp.2004.1364253
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发表时间：
2004-12
期刊：
影响因子：
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通讯作者：
N. Fuse;M. Kozako;T. Tanaka;S. Murase;Y. Ohki
中科院分区：
文献类型：
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作者：
N. Fuse;M. Kozako;T. Tanaka;S. Murase;Y. Ohki
研究了聚酰胺纳米复合材料的介电性能，重点研究了其抗局部放电性能。本文比较了含无机纳米填料和不含无机纳米填料的聚酰胺在局部放电和等离子体暴露下的表面粗糙度。通过x射线衍射谱分析证实，局部放电后，纳米填料与表面平行排列，相互距离约为1 nm。除了云母的存在、高结晶度和云母/树脂界面上强离子相互作用的影响外，纳米填料的这种有序排列应该有助于聚酰胺纳米复合材料抗局部放电的高耐久性。此外，本文还报道了通过观察光致发光光谱来检测结构变化的初步尝试结果。
The dielectric properties of polyamide nanocomposites were examined, focusing especially on their resistance against partial discharges. The paper compares the surface roughness caused by partial discharges and that caused by exposure to plasmas, between polyamide with and without inorganic nanofillers. From X-ray diffraction spectroscopy, it was confirmed that the nanofillers are rearranged in parallel with their surfaces with a mutual distance around 1 nm after the nanocomposite was subjected to partial discharges. Such ordered arrangement of nanofillers should contribute to the high durability against partial discharges in polyamide nanocomposites, in addition to the effects of the presence of mica, high crystallinity, and strong ionic interaction at mica/resin interfaces. Furthermore, the result of a preliminary attempt to detect the structural change through observation of photoluminescence spectra is also reported.