苯乙酮对LDPE和LLDPE中空间电荷演化的影响

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) Pub Date : 1999-12-01 DOI:10.1109/CEIDP.1999.804585

K. Kobayashi, T. Ohara, Y. Ohki, T. Maeno

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引用次数: 11

摘要

研究了苯乙酮对聚乙烯中空间电荷演化的影响。测试样品为无添加剂LDPE和LLDPE板材。检查了两种类型的标本。第一种是两层试样，由未经处理的薄片和浸透苯乙酮的薄片组成。第二种是LDPE或LLDPE薄片，在其上洒上几滴苯乙酮，使样品表面涂有苯乙酮。得到的重要结论如下:(1)LDPE的正电荷很容易从苯乙酮存在区迁移到不存在区，而负电荷则很难迁移。(2)在LLDPE中，正电荷和负电荷都是不动的，它们倾向于在存在和不存在苯乙酮区之间的界面处积聚。(3)由空间电荷谱计算的迁移率和电导率值与离子载流子在苯乙酮存在区负责传导的假设一致。

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Effect of acetophenone on the space charge evolution in LDPE and LLDPE

We have examined the influence of acetophenone on the space charge evolution in PE. The samples tested are additive-free LDPE and LLDPE sheets. Two types of specimens were examined. The first one is a two-layered specimen consisting of a non-treated sheet and an acetophenone-soaked sheet. The second one is an LDPE or LLDPE sheet, onto which a few drops of acetophenone were spilt so that the sample surface was coated with acetophenone. The important conclusions obtained are as follows: (1) Positive charges are easy to migrate from the acetophenone-existing region to the non-existing region in the case of LDPE, while negative charges are difficult. (2) Both positive and negative charges are rather immobile in LLDPE, and they tend to accumulate at the interface between the acetophenone-existing and non-existing regions. (3) The values of mobility and conductivity calculated from the space charge profile agree with the assumption that ionic carriers are responsible for the conduction in the acetophenone-existing region.

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来源期刊

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)

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