Preparation method of epoxy insulating composite material for improving electrostatic dissipation characteristics

Abstract

The invention provides a preparation method of an epoxy insulating composite material for improving electrostatic dissipation characteristics, and belongs to the technical field of epoxy insulators. The method comprises the following steps: uniformly spraying a fluorine-containing mold release agent on the inner surface of a mold, and performing baking and drying in a drying oven to form a compactmold release agent film layer; after taking out the film layer, spraying the mold release agent again outside the compact mold release agent film layer to form a secondary mold release agent film layer; pouring an epoxy resin mixture into a mold for forming the mold release agent film layer, performing standing for a certain time, and completely discharging bubbles generated by pouring; and putting the mold into which the epoxy resin mixture is poured into a drying box, performing curing according to a temperature gradient, cooling the cured material to room temperature, and performing demolding and sampling to obtain an epoxy insulator with improved electrostatic dissipation performance. According to the invention, a fluorine-containing component is introduced into an epoxy composite system, and a fluorine-containing permeable layer is formed by adopting a pretreatment process of spraying the fluorine-containing release agent two times, so that electrostatic charge accumulation of epoxy resin is reduced, the electrostatic dissipation speed of the surface of the epoxy resin is increased, the operation is simple and convenient, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of epoxy insulators, in particular to an epoxy insulating composite material preparation method capable of reducing electrostatic charge accumulation of epoxy resin and increasing electrostatic dissipation speed on the surface of epoxy resin and improving electrostatic dissipation characteristics. Background technique [0002] my country's transmission lines often pass through areas with complex geographical and meteorological conditions, and the development of social economy has also made the selection of line corridors an increasingly serious problem. Gas-insulated metal-enclosed transmission lines (GIL) have the advantages of large transmission capacity, flexible layout, little interaction with the environment, and are not affected by external environmental factors such as dust, humidity, and icing. They are suitable for harsh weather environments or limited corridor selection power transmission occasions...

AI Technical Summary

Problems solved by technology

There are many technical means of fluorination, but the previous methods are independent of the production process of insulators, and it is difficult to effectively put them into industrial applications without adding new production equipment.

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