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Silicone foma rubber

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As one of the use forms of organic silicone rubber product materials, foaming silica gel is a soft and resilient elastomer compound, which is divided into three types: closed hole type, open hole type and mixed type.

It not only has the high and low temperature resistance, heat aging resistance, ultraviolet resistance and high flame retardant properties of silicon rubber material, but also has the sound absorption, shock absorption, sealing and high springback properties of foam material. The specific properties are as follows:

High and low temperature resistance

Foaming silica gel at high temperature (above 200℃) environment, excellent mechanical properties, and still has a certain toughness and elasticity, and glass transition temperature (Tg) can be as low as -70 ℃. Under normal circumstances, the operating temperature of foaming silica gel is -100 ℃ to 350 ℃. It can withstand thousands of degrees of instantaneous high temperature, so it is often used to make high temperature resistant and heat resistant coatings, such as in the aviation field.

High flame retardancy

Compared with polyurethane foam, foamed silica gel can well meet the requirements of EN45545-2 in terms of flame retardancy, its foam density is 0.08~0.15g/cm3, and its service life can reach 2~4 times that of polyurethane foam. In addition, it is significantly better than polyurethane foam in terms of comfort, foam density and environmental protection, so it is expected to replace traditional polyurethane foam in aerospace, rail transit and high-end automotive industries.

Electrical insulation

Foaming silica gel insulation, combustion, the formation of silicon dioxide is still an insulating substance. In addition, the foaming silica gel in the arc discharge, is not easy to coke, because the number of carbon atoms in its structure is less, and its reinforcing filler silica black, suitable for high pressure occasions.

Physiological inertia

The surface of foamed silica gel is hydrophobic. Therefore, the physical properties are reduced in a humid environment, and the adhesion is poor. It can play a role in isolation. And its own environmental protection, non-toxic tasteless, no harm to human health, which also makes its excellent physiological inertia.

At the same time, it is also very superior in aging resistance.

Because of these excellent performance advantages, foaming silica gel can be widely used in many industries and products in daily life, such as: new energy vehicles, 5G base stations, high-speed rail aircraft, electrical appliances and other applications.

Application in new energy vehicles

As the core energy supply station of new energy vehicles, the battery is subjected to multiple tests such as high and low temperature, dust, moisture and so on in the entire body. It can be seen how important the battery shell is to protect the battery. The performance of high and low temperature resistance, waterproof and flame retardant, high air tightness and other properties of foamed silica gel material can be perfectly used as the sealing protection material of the battery shell, to escort the safe driving of the car.

Application in 5G base station

Because 5G base stations are basically located outside, the shell needs to withstand high temperature, cold, damp and other corrosive environment for a long time, and the working environment is relatively harsh, so the foamed silica gel can play a strong anti-aging, anti-ultraviolet and other capabilities for the shell.

Application in high speed rail aircraft

Foamed silica gel can be used as floor vibration damping pad in high-speed rail aircraft to play the role of buffering and damping. The method of use is to cut the foamed silica gel and pressure sensitive tape into the required size strips, and then paste on the floor. Not only that, foamed silica gel can also be used as seats and backrests on high-speed rail aircraft, which can meet the demanding flame retardant requirements, with long service life, excellent environmental performance, good comfort and other outstanding characteristics.

Application in electrical appliances

Foamed silica gel can be used as a gasket to seal parts in household appliances such as rice cookers, water dispensers, ovens, etc., which have high requirements for airtightness. And the waterproof service life of foaming silica gel is very long, which can ensure the airtightness of electrical equipment for a long time. This also shows that the type of products suitable for foaming silica gel in electrical equipment is far more than we usually know.

So, as long as you pay attention, you will find that, in fact, many products can have its figure, many products can be used on the foaming silicone material.

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