Device and method for preparing silicon rubber insulating material with space charges quickly dissipated

Abstract

The invention discloses a device and method for preparing a silicon rubber insulating material with space charges quickly dissipated. The device includes an electronic scale, a drying box, a vulcanizing machine and a mixing mill used for blending of a silicone rubber matrix and filler; the mixing mill includes a roller, a heating device, a rotation speed regulating device and a timing device. The preparation method comprises the following steps that the electronic scale is used for weighing the silicone rubber matrix and filler, and the weighed silicone rubber matrix and filler are placed in the drying box with the temperature of 60 DEG C for use. The silicone rubber matrix, nanometer silicon dioxide, hexamethyldisilazane, polyvinylsilicone oil, micrometer silicon carbide and luperox are added in the roller for blending, and finally the silicon rubber insulating material with the space charges quickly dissipated is obtained in the vulcanizing machine. The method significantly promotes the dissipation of space charges in the silicon rubber insulating material, cable accessories are not affected to increase insulation and mechanical properties, the production process is simple, and the reaction process is stable and controllable.

Description

technical field [0001] The invention relates to the field of electrical engineering, in particular to a device and a method for preparing a silicone rubber reinforced insulating material for direct current cable accessories with the effect of rapidly dissipating space charge. Background technique [0002] With the continuous development of industrialization and the continuous advancement of science and technology, polymer-based solid dielectric materials are increasingly used in high-voltage engineering, power electronics, microelectronic insulation, and various special sensors that rely on charge residence and polarization. more extensive. Especially in recent years, polymer nanocomposites based on polymers have sprung up suddenly, becoming a research hotspot in electrical insulation and related professional fields. [0003] Silicone rubber composite insulation is used as reinforced insulation for cable accessories due to its excellent dielectric properties, high and low t...

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to paste a layer of insulating film on the surface of the polymer, but although this method can suppress the injection of space charges, it also changes the insulating structure and electric field distribution, directly affecting the dielectric and shock properties of silicone rubber insulation. Wear and flashover properties, etc., so this kind of method has not yet been reported on related applications

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