Super wear-resistant water-lubricated bearing composite material and preparation method thereof

Abstract

The invention discloses a super wear-resistant water-lubricated bearing composite material and a preparation method thereof, belonging to the field of macromolecule sliding bearings, and aiming at providing the water-lubricated bearing composite material which is good in abrasive resistance, low in wear rate and long in service life, and the preparation method of the water-lubricated bearing composite material. The super wear-resistant water-lubricated bearing composite material is prepared from the following raw materials in parts by weight: 40-80 parts of rubber, 20-60 parts of polyurethane rubber, 4-10 parts of zinc oxide, 1-3 parts of stearic acid, 0.2-6 parts of an accelerant, 0.5-3 parts of an anti-aging agent, 0.2-8 parts of a vulcanizing agent, 20-80 parts of carbon black, 5-60 parts of polytetrafluoroethylene radiated by a gamma ray or an electronic beam, 5-30 parts of a self-lubricating agent and 5-30 parts of reinforced fibers, wherein the rubber is one or more of nitrile rubber, carboxy nitrile rubber and hydrogenated nitrile rubber. The composite material has excellent abrasive resistance, low wear rate and long service life.

Description

technical field [0001] The invention belongs to the field of polymer sliding bearings, and in particular relates to a super wear-resistant water-lubricated bearing composite material and a preparation method thereof. Background technique [0002] Sliding bearings refer to bearings that work under sliding friction. The lubrication methods used in sliding bearings mainly include water lubrication and oil lubrication. Oil lubrication often causes oil leakage, which not only pollutes the environment but also leaves oil stains to expose the target and be discovered by the enemy. Therefore, water lubrication is generally used for naval bearings. Materials commonly used in water-lubricated bearings are: iron pear wood, engineering plastics and rubber. Although iron pear wood has a good water lubrication effect, it has been eliminated due to the depletion of this resource; many engineering plastics have good self-lubricating properties, such as polytetrafluoroethylene (PTFE), ultr...

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Problems solved by technology

[0003] In the prior art, the Chinese patent of a preparation method for water-lubricated rubber bearings (publication number 103467795) discloses a water-lubricated bearing material that uses nitrile rubber as the main material and cooperates with self-lubricating agents such as molybdenum disulfide and graphite. The method, the water-lubricated bearing material prepared by this method has excellent wear resistance, but the wear of the bearing is relatively large

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