A preparation method of epoxy insulating composite material with improved static dissipative properties

Abstract

The invention provides a method for preparing an epoxy insulating composite material with improved electrostatic dissipation characteristics, belonging to the technical field of epoxy insulators, comprising spraying a fluorine-containing mold release agent evenly on the inner surface of a mold, putting it into a drying oven to bake and dry, and forming Dense release agent film layer; after taking it out, spray the release agent again outside the dense release agent film layer to form a secondary release agent film layer; pour the epoxy resin mixture into the mold that forms the release agent film layer , let it stand for a certain period of time, until the air bubbles generated by pouring are exhausted; put the mold of pouring epoxy resin mixture into the drying box, solidify according to the temperature gradient, cool to room temperature, demould and sample, and obtain epoxy resin with improved electrostatic dissipation performance. insulator. The present invention introduces fluorine-containing components into the epoxy composite system, and adopts the pretreatment process of secondary spraying of fluorine-containing release agent to form a fluorine-containing permeable layer, which reduces the electrostatic charge accumulation of epoxy resin and improves the surface of epoxy resin. Excellent static dissipation speed, simple and convenient operation, and low cost.

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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