Flame-retardant rubber and production method therefor

Abstract

The invention discloses flame-retardant rubber which is prepared from the following raw materials in percentage by weight: 0.1-0.3% of sodium stearate, 3-5% of titanium dioxide, 3-5% of zinc oxide, 3-5% of magnesium oxide, 0.1-1% of an antistatic agent, 3-15% of calcium carbonate powder, 5-15% of insulating ceramic particles, 2-5% of an accelerant, 5-10% of asbestos fiber, 1-3% of carbon black, 0.01-0.3% of a smoke suppressant and the balance of chloroprene rubber. According to the flame-retardant rubber disclosed by the invention, the impact resistance, the antistatic property, the ageing resistance and the toughness of a rubber product are improved to a great extent and the thermal decomposition temperature of the rubber product is increased while the insulating performance of rubber is enhanced. Fire hazards can be further effectively reduced while the electric insulating property is improved and electric leakage accidents are prevented, and moreover, fire spread can be effectively prevented, so that an effect of reducing damages by fire is achieved.

Description

technical field [0001] The invention relates to a flame-retardant rubber, which belongs to the technical field of new electric flame-retardant materials. Background technique [0002] In recent years, with the improvement of safety performance requirements for the laying of power lines and the connection of electrical equipment, a large number of electrical components made of rubber have been widely used. Because rubber products are prone to softening or even burning when heated, it can cause fires or lead to fires. Therefore, in order to overcome this problem, various types of flame-retardant rubbers have been developed on the market, but in actual use, it is found that the flame-retardant performance of flame-retardant rubbers currently on the market mainly depends on a variety of flame retardants. Although these flame-retardant chemical products can play a flame-retardant effect to a certain extent, they are also prone to decompose and release toxic substances under high ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the improvement of safety performance requirements for the laying of power lines and the connection of electrical equipment, a large number of electrical components made of rubber have been widely used. Because rubber products are prone to softening or even burning when heated, it can cause fires or lead to fires. Therefore, in order to overcome this problem, various types of flame-retardant rubbers have been developed on the market, but in actual use, it is found that the flame-retardant performance of flame-retardant rubbers currently on the market mainly depends on a variety of flame retardants. Although these flame-retardant chemical products can play a flame-retardant effect to a certain extent, they are also prone to decompose and release toxic substances under high temperature conditions, and at the same time, they will also cause huge pollution to the environment during production. At the same time, the production cost is relatively high. At the same time, the flame-retardant rubber materials currently used are insufficient in impact resistance, anti-static properties, aging resistance and toughness, and have a short service life or are easily damaged. In addition, their thermal The decomposition temperature is also relatively low, so it is easily affected by high temperature and has poor high temperature resistance. Therefore, in order to improve the safety of power supply systems and electrical equipment, it is urgent to develop a new flame-retardant rubber product to meet the needs of use.