Preparation method of insulating material for electrical equipment

Abstract

The invention provides a preparation method of an insulating material for electrical equipment. The method comprises the following steps: a, leading waste rubber, epoxy resin and silicone rubber intoan internal mixer, performing banburying on the material till the mixture is molten, then sequentially adding a fire retardant, nanosilicon dioxide and carbon black, and reducing the temperature for banburying, so as to obtain a mixture I; mixing and putting a processing auxiliary material, polyimide, sodium alginate, lignin and an antioxidant into a mixer, heating, and performing ultrasonic oscillation, so as to obtain a mixture II; c, adding silicone oil and a coupling agent into the mixture II, putting the mixture II into a stirrer to perform stirring, then putting the mixture II in a vacuum environment, and performing defoaming treatment, so as to obtain a mixture III; and d. uniformly mixing the mixture I, the mixture III, organic tin and a curing agent, leading the mixture into a single screw to perform extrusion, adding the mixture into a dehydrator to perform dehydration, and putting the mixture into a closed container, leaving the mixture to stand, curing, and forming. The method is simple, short in preparation flow, mainly adopts a waste rubber material, and has certain environmental protection significance.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a preparation method of an insulating material for electrical equipment. Background technique [0002] At this stage, the electrical industry is in a period of rapid development and will continue to develop. Electrical products have been popularized in various industries, and the demand for its insulating materials is also increasing, especially the current insulating materials are mostly used for relatively strong corrosion. In places, its corrosion resistance will directly affect safety. Although there are many types of insulating materials on the market, there are still few corrosion-resistant insulating materials used in electrical products, and their performance is not good, which directly limits the development of the electrical industry. Moreover, the existing modifying agents for electrical insulating materials generally use toxic chemical substa...

AI Technical Summary

Problems solved by technology

For example, the air insulation has a large volume, poor insulation performance, and is easily affected by the outdoor environment to cause equipment insulation breakdown; SF 6 Gas insulation cannot be used in plateaus and extremely cold regions, SF 6 After the gas leaks, the insulation drop will easily cause the equipment to explode, and the SF 6 It is a greenhouse gas, not environmentally friendly, and not easy to recycle; epoxy resin insulation reduces the volume, but due to heat curing, it is easy to cause damage to the charged body or cracking of the insulation layer, and it is not environmentally friendly and cannot be recycled. Large, easy to cause operation insulation accident