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Sulfide

Ferrous sulfide

Ferrous sulfide

Ferrous sulfide is an important chemical mineral raw material, mainly used to produce sulfuric acid. Some are used as chemical raw materials to produce sulfur and various sulfur compounds. It has important applications in rubber, friction, paper, textile, food, match and other industries and agriculture. The effect of friction increase with a certain amount of friction material filler is good, and the existing friction coefficient can be obtained while the brake noise can be reduced.

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Copper sulfide

Copper sulfide

In friction products, copper sulfide can not only improve friction coefficient, but also reduce friction at low temperature. In addition, it can also play a good role in heat dissipation at high temperature due to its high thermal conductivity. Under the general trend of copper-free formula, the overall formula of copper sulfide can completely meet the requirement of content less than 5%.

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Antimony sulfide

Antimony sulfide

Main performance: 1. It can prevent the oxidation and combustion of materials at high temperature, maintain the friction stability of materials, and improve the anti-burning performance of materials; 2. It can also reduce the decomposition rate of organic adhesive at high temperature, improve the service life of materials, and play the role of high-temperature inorganic adhesive and lubricating friction adjuster. 3. In addition, the hardness of antimony sulfide and high-temperature reaction during braking is relatively low, which can reduce the noise and vibration generated by friction materials during braking. 4. Antimony sulfide has outstanding performance of adjusting friction coefficient, low temperature lubrication below 200 ℃, stable friction coefficient at 250 ℃, and anti-fading. 5. In some disc formulations at home and abroad, it is found that the use of antimony sulfide can play the role of high-temperature inorganic binder, thus reducing the amount of resin. 6. The particle size of antimony sulfide produced by our company is 1600 mesh ultra-fine, which can increase the fluidity of the product, improve the specific surface area of the product, and use it more fully.

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Molybdenum disulfide

Molybdenum disulfide

Function in friction material: 1. Reduce friction coefficient and wear at low temperature. 2. At high temperature, due to the oxidation and transformation into molybdenum trioxide and molybdenum trisulfide during the friction process, the layer structure is lost, which can not reduce the friction coefficient, but can inhibit the transfer of resin to the steel surface, effectively reduce the wear of the composite, improve its wear resistance, and extend its service life. 3. The oxidation products MoO3, MoS3 and MoS2 form copolymer particles. When the temperature rises, the copolymer particles expand, resulting in friction enhancement.

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