Heat-resistant flame-retardant high-strength antistatic insulating material and preparation method thereof

Abstract

The invention discloses a heat-resistant flame-retardant high-strength antistatic insulating material and a preparation method thereof. The insulating material comprises the following raw materials inparts by weight: 40-60 parts of composite rubber, 5-7 parts of alkali-free glass fibers, 3-5 parts of a nano material, 3-5 parts of polyethylene glycol, 6-8 parts of a reinforcing filler, 1-3 parts of polyethylene wax, 7-9 parts of a flame retardant auxiliary agent, 2-4 parts of graphene, 6-8 parts of a coupling agent, 2-3 parts of a vulcanizing agent, 0.4-0.6 part of a lubricant, 0.5-0.7 part ofan antistatic agent, 1-2 parts of an anti-aging agent, 0.4-0.6 part of a UV absorber, and 0.7-1.1 parts of a crosslinking agent. The insulating material disclosed by the invention not only has excellent flame retardant and electrical insulation properties, but also has high-temperature resistance, aging resistance, crack resistance, long service life, good toughness, a surface where static electricity is not easy to generate, and excellent self-cleaning performance; and the preparation method provided by the invention has low costs and a simplified process, is easy to operate, realizes industrialized production, and has higher practical value and good application prospects.

Description

technical field [0001] The invention relates to the technical field of power materials, in particular to a heat-resistant, flame-retardant, high-strength antistatic insulating material and a preparation method thereof. Background technique [0002] At present, insulating materials should have good dielectric properties, that is, have high insulation resistance and withstand voltage strength, and can avoid accidents such as leakage, creepage or breakdown; The performance change due to heat (heat aging) is the most important; in addition, it has good thermal conductivity, moisture resistance, high mechanical strength and convenient processing. [0003] In addition, dry-type transformers, dry-type currents, and voltage transformers used in high-voltage transmission lines and substations all use epoxy resin as the outer covering material, which generally has disadvantages such as poor waterproofness, easy cracking at low temperatures, and easy accumulation on the surface during ...

AI Technical Summary

Problems solved by technology

Although the effect of the former is good, the durability is poor, and it is easy to lose the antistatic property after being wiped and washed with water during use; the latter has good durability, but it fundamentally changes the electrical insulation performance of the material. not available on device

[0004] At the same time, the operating voltage level of the power grid system is continuously improving, and the network scale is gradually expanding. The ultra-high or ultra-high voltage transmission network is the skeleton and core of the smart grid that the State Grid is trying to build. The construction of an ultra-high voltage transmission network can greatly improve the transmission capacity of my country's power grid Reduce long-distance power transmission loss, but higher voltage levels and DC transmission pose a major challenge to the safety and reliability of insulating materials widely used in electrical equipment. The technical core and key of the road, the level and stability of its electrical performance are directly related to the voltage level and safety of the entire transmission network. my country's power transmission level and resource saving are of great significance. The existing insulating materials for power cables have poor corrosion resistance and high heat resistance, which affects the service life of power cables.