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一、引言聚酯薄膜(简称PET薄膜)具有优良的电气、力学等性能,因而在电工绝缘行业及其它领域得到了广泛的应用与重视。聚酯薄膜的电导温谱特性是其电性能的一个重要方面,也是决定其使用范围的一个重要因素,但至今有关PET薄膜的电导温谱特性研究的不多,且还没有统一的解释。本文旨在通过多种测试手段,分析了解聚酯的电导温谱特性与其结构变化的内在关系,
I. Introduction Polyester film (referred to as PET film) has excellent electrical, mechanical and other properties, which in the electrical insulation industry and other areas have been widely used and valued. The thermal conductivity of polyester film is an important aspect of its electrical properties and an important factor determining the range of its application. However, there is not much research on the thermal conductivity of PET film so far, and no unified explanation has been given yet. The purpose of this paper is to analyze and understand the inherent relationship between the electrical conductivity of polyester and the change of its structure through a variety of testing methods.