High-hardness wear-resistant rubber sealing piece and preparation method thereof

Abstract

The invention discloses a high-hardness wear-resistant rubber sealing piece. The high-hardness wear-resistant rubber sealing piece comprises the following raw materials in parts by weight: 60 to 120 parts of modified silicone rubber 15 to 35 parts of ethylene-propylene- diene-terpolymer rubber, 5 to 15 parts of hydrogenated butyronitrile rubber, 4 to 8 parts of chlorosulfonated polyethylene, 2 to 5 parts of polyvinyl fluoride resin, 2 to 8 parts of polyethylene, 1 to 6 parts of nano-silicon dioxide, 2 to 8 parts of silicon carbide, 1 to 4 parts of zinc oxide, 2 to 5 parts of magnesium oxide, 1 to 5 parts of nylon, 2 to 6 parts of glycol, 3 to 6 parts of graphite powder, 2 to 5 parts of a silane coupling agent KH-560, 1 to 5 parts of polycarbonate, 2 to 5 parts of n-butyl acetate, 3 to 8 parts of zinc stearate, 1 to 5 parts of chlorinated paraffin, 2 to 5 parts of polyethylene glycol, 2 to 7 parts of aids, 1 to 3 parts of a dispersing agent and 2 to 5 parts of a plasticizer. The invention also provides a preparation method of the high-hardness wear-resistant rubber sealing piece. The high-hardness wear-resistant rubber sealing piece provided by the invention has excellent toughness, hardness and wear resistance.

Description

technical field [0001] The invention relates to the field of rubber seals, in particular to a high-hardness wear-resistant rubber seal and a preparation method thereof. Background technique [0002] Rubber has good comprehensive properties, such as high adhesion to metal, mechanical properties, fatigue properties, aging resistance, and low heat generation. Rubber seals are used in all walks of life. If the seals are of poor quality, the lightest It will bring losses and troubles, and it will cause serious accidents, especially in the environment with high working pressure, the seal ring bears a large load, and the seals are often damaged during the operation of the equipment. Some seals only If it can be used for 1-2 months, or even shorter time, it needs to be replaced, which brings troubles to the continuous production of enterprises, and people's quality requirements for rubber sealing rings are also constantly improving. [0003] The hardness and wear resistance of the ...

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Problems solved by technology

[0002] Rubber has good comprehensive properties, such as high adhesion to metal, mechanical properties, fatigue properties, aging resistance, and low heat generation. Rubber seals are used in all walks of life. If the seals are of poor quality, the lightest It will bring losses and troubles, and it will cause serious accidents, especially in the environment with high working pressure, the seal ring bears a large load, and the seals are often damaged during the operation of the