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首页> 外文期刊>IEEE Transactions on Dielectrics and Electrical Insulation >The influence of ions on the thermally stimulated discharge current spectra of water-treed additive-free low-density polyethylene
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The influence of ions on the thermally stimulated discharge current spectra of water-treed additive-free low-density polyethylene

机译：离子对水处理无添加剂低密度聚乙烯热激发放电电流谱的影响

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摘要

The effects of water treeing on steady state dc currents and thermally stimulated discharge current spectra (TSDC) of additive-free low density polyethylene (LDPE) were studied using heavily water-treed material in solutions of LiCl, LiCl plus HCl, MnCl/sub 2/ and FeCl/sub 3/. Significant changes in the dc conductivity of treed samples are attributed to the effects of ions. For such samples, graphs of the logarithm of current versus inverse temperature show three distinct linear regions. The transition temperatures demarcating these regions appear to correlate with those reported for thermal relaxations. TSDC spectra of water-treed samples show a dependence on both the ionic solutions used and on the poling conditions. For LiCl treed samples, twin peaks in the TSDC spectra were produced only under specific poling conditions. These peaks may be correlated with thermal relaxations observed using differential scanning calorimetry (DSC). The melting point temperature and the melting peak area derived from DSC spectra were reduced by treeing.
机译：使用重水处理的材料在LiCl，LiCl加HCl，MnCl / sub 2溶液中研究了水树对无添加剂低密度聚乙烯（LDPE）的稳态直流电流和热激发放电电流谱（TSDC）的影响/和FeCl / sub 3 /。树状样品的直流电导率的显着变化归因于离子的影响。对于此类样品，电流对数与逆温度的对数图显示了三个不同的线性区域。划定这些区域的转变温度似乎与报道的热弛豫相关。经过水处理的样品的TSDC光谱显示出对所用离子溶液和极化条件的依赖性。对于LiCl树状样品，仅在特定极化条件下才会在TSDC光谱中产生双峰。这些峰可能与使用差示扫描量热法（DSC）观察到的热弛豫相关。通过树状分析降低了由DSC光谱得出的熔点温度和熔融峰面积。

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