The objective of this paper is to propose an equivalent fluorination method to improve the DC surface insulation strength of Al 2 O 3 /ER composites using fluorine-containing release agent (F-RA). By replacing the conventional silicon series release agent with a fluorine-containing one, the DC flashover voltage is, at best, raised to 1.2 times of the original value, and the surface charge characteristics are modified for better suppressing the distortion of surface electric field. The trap depth of the material is shallow, and the surface conductivity is reduced. The modification mechanism is explained from the perspectives of surface conductivity and fluorine electronegativity.

中文翻译：

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含氟脱模剂渗透性增强Al2O3/ER直流表面绝缘


本文的目的是提出一种等效氟化方法，使用含氟脱模剂（F-RA）提高Al 2 O 3 /ER复合材料的直流表面绝缘强度。通过用含氟脱模剂代替传统的硅系脱模剂，直流闪络电压最多可以提高到原始值的1.2倍，并且表面电荷特性得到改善，可以更好地抑制表面电场的畸变。材料的陷阱深度浅，表面电导率降低。从表面电导率和氟电负性的角度解释了改性机理。