Electrical conductivity of waxes as model systems for polyethylene: Role of water

Electrical conductivity of waxes as model systems for polyethylene: Role of water
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作为聚乙烯模型系统的蜡的电导率:水的作用

DOI:
10.1002/app.48765
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发表时间:
2019
影响因子:
3
通讯作者:
Hosier I
Hosier I
中科院分区:
化学3区
文献类型:
--
作者:
Hosier I

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本文报道了高纯度十二烷、石蜡和低密度聚乙烯(PE)电导率的新实验和理论研究。当温度从25°C增加到65°C时,确定了与绝缘材料应用相关的温度范围,电荷密度,含水量和相位变化在确定电导率方面的作用。低水平的吸收水决定了T < 50°C时的测量电导率,这可以通过考虑由水的自电离产生的载流子来解释。与商用PE和润滑油相比,干燥十二烷的电导率对温度的依赖性异常高。©2019 Wiley期刊公司j:。变异较大。Sci.2020、137、48765。
Novel experimental and theoretical studies of the electrical conductivity of high‐purity dodecane, paraffin wax, and low‐density polyethylene (PE) are reported herein. The role of the charge density, water content, and phase changes in determining conductivity as the temperature increases from 25 to 65 °C, a temperature range relevant to applications of insulating materials, is determined. Low levels of absorbed water determine the measured conductivity for T < 50 °C and this can be explained by taking account of the charge carriers produced by the autoionization of water. In comparison to commercial PE and lubricating oils, the temperature dependence of the conductivity of dryn‐dodecane is anomalously high. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2020,137, 48765.
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