Wear-resistant flame-retardant heat-conducting insulating material and preparation method thereof

Abstract

The invention discloses a wear-resistant flame-retardant heat-conducting insulating material and a preparation method thereof. The wear-resistant flame-retardant heat-conducting insulating material comprises the following raw materials in parts by weight: 80-120 parts of compound rubber, 10-20 parts of wear-resistant additives, 8-14 parts of modified reinforcing fibers, 10-14 parts of a flame-retardant additive, 3-5 parts of a coupling agent, 7-9 parts of a processing auxiliary agent, 6-8 parts of a toughening auxiliary agent and 7-9 parts of a modified nano additive. The wear-resistant flame-retardant heat-conducting insulating material provided by the invention has good performances of being insulating, stretch-resistant and wear-resistant, excellent in heat-conducting flame-retardant effect, cold and hot impact resistant and high in toughness, free from toxicity and free of peculiar smells, high in strength, good in elasticity, relatively long in service life and safe and environment-friendly; meanwhile, the preparation method is relatively low in cost, easily available in raw material and concise in process, and has relatively high practical value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of wear-resistant insulating materials, in particular to a wear-resistant, flame-retardant and heat-conducting insulating material and a preparation method thereof. Background technique [0002] In recent years, my country's electric power industry has developed rapidly, the operating voltage level of the grid system has been continuously improved, and the network scale has gradually expanded. The ultra-high or ultra-high voltage transmission network is the backbone and core of the smart grid that the State Grid is building. Significantly improve the transmission capacity of my country's power grid and reduce long-distance power transmission losses, but higher voltage levels and DC transmission pose a major challenge to the safety and reliability of insulating materials widely used in electrical equipment. High-performance insulating materials are components of high-voltage, The technical core and key of UHV p...

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's electric power industry has developed rapidly, the operating voltage level of the grid system has been continuously improved, and the network scale has gradually expanded. The ultra-high or ultra-high voltage transmission network is the backbone and core of the smart grid that the State Grid is building. Significantly improve the transmission capacity of my country's power grid and reduce long-distance power transmission losses, but higher voltage levels and DC transmission pose a major challenge to the safety and reliability of insulating materials widely used in electrical equipment. High-performance insulating materials are components of high-voltage, The technical core and key of UHV power transmission and transformation equipment and network, the level and stability of its electrical performance are directly related to the voltage level and safety of the entire power transmission network. Therefore, the development of high-performance insulating materials is crucial to the construction of safe, reliable, stable and efficient DC ultra-high voltage transmission and transformation network is of great significance to improve the power transmission level of our country and save resources. The existing insulation materials for power cables have poor corrosion resistance and high heat resistance, which affects the service life of power cables.

[0003] On the other hand, many parts of electric equipment need to use insulating rubber sheets. The working environment temperature of some electric equipment is high, and the electric equipment itself will generate some heat, which will increase the temperature of insulating rubber sheets, and the insulating rubber sheets When the temperature rises, its own mechanical properties will decrease, the rubber colloid will soften, the tensile performance will decrease, the elasticity will weaken, and the sealing performance and cushioning performance will deteriorate. This will bring safety hazards to the operation of electric equipment, and even affect the normal use of equipment

[0004] In addition, due to the chemical interaction between various additives, reinforcing agents and the rubber body, most insulating rubber mats may emit a pungent odor during use, and this unpleasant smell will be more obvious in high-temperature environments