Ultra-high molecular weight polyethylene composite material for water lubricated bearing

An ultra-high molecular weight, water-lubricated bearing technology, used in bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of water-lubricated friction coefficient, difficult to form complete water-lubrication, etc., to improve wear resistance, improve water The effect of lubricating friction performance and improving flexibility

Inactive Publication Date: 2012-09-12
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems in the prior art that using ultra-high molecular weight polyethylene as the bearing material, it is difficult to form complete water lubrication under water lubrication conditions, and the friction coefficient of water lubrication is relatively large, the present invention provides an ultra-high molecular weight polyethylene bearing for water lubrication. Molecular weight polyethylene composites

Method used

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  • Ultra-high molecular weight polyethylene composite material for water lubricated bearing

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Embodiment 1

[0017] Take 100 parts of ultra-high molecular weight polyethylene with a molecular weight of 3 million, 30 parts of ordinary nitrile rubber, 10 parts of graphite, 10 parts of molybdenum disulfide, 1.5 parts of zinc oxide, 0.3 parts of stearic acid, and 1 part of dicumyl peroxide. Parts, 0.1 part of β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 2,2,4-trimethyl-1,2-dihydroquinoline polymer 0.1 part, the above components were mixed uniformly in an internal mixer at 120°C, then the mixture was placed in a mold, and molded at 170°C to obtain the ultra-high molecular weight polyethylene composite material of the present invention.

Embodiment 2

[0019] Take 100 parts of ultra-high molecular weight polyethylene with a molecular weight of 5 million, 10 parts of hydrogenated nitrile rubber, 40 parts of graphite, 1.0 part of zinc oxide, 0.3 part of stearic acid, 1,4-bis-(2-tert-butyl peroxide) 0.1 part of cumene oxide, 0.2 part of β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 0.2 part of 1,1,3-tris(2-methyl- 0.3 parts of 4-hydroxy-5-tert-butylphenyl) butane, 0.2 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, the above components were mixed in an internal mixer at 140 ℃, mix evenly, then put the mixture in a mold, and mold it at 190 ℃ to obtain the ultra-high molecular weight polyethylene composite material of the present invention.

Embodiment 3

[0021] Take 100 parts of ultra-high molecular weight polyethylene with a molecular weight of 8 million, 50 parts of carboxylated nitrile rubber, 10 parts of molybdenum disulfide, 5 parts of zinc oxide, 1 part of stearic acid, 1,4-bis-(2-tert-butyl 3 parts of isopropyl peroxide, 1 part of tris(2,4-di-tert-butylphenyl) phosphite, 1 part of 1,1,3-tris(2-methyl-4-hydroxy-5-tert 1 part of butylphenyl)butane, 1 part of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, mix the above components in an internal mixer at 130°C, and then mix the mixture Put it in a mold, and mold it at 180°C to obtain the ultra-high molecular weight polyethylene composite material of the present invention.

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Abstract

The invention provides an ultra-high molecular weight polyethylene composite material for a water lubricated bearing, belonging to the field of high molecular composite materials. The invention solves the problem that the ultra-high molecular weight polyethylene as a bearing material can not easily form complete water lubrication and has a high water lubrication friction factor under water lubrication conditions in the prior art. The composite material is prepared by blending and cross-linking the following components in parts by weight: 100 parts of ultra-high molecular weight polyethylene, 10-50 parts of nitrile-butadiene rubber, 10-40 parts of self-lubricating agent, 0.5-5 parts of zinc oxide, 0.1-1 part of stearic acid, 0.1-3 parts of crosslinking agent and 0.2-3 parts of antioxidant. The composite material has favorable dry friction and water lubrication properties, and is suitable to be used as a water lubricated bearing material for ships.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to an ultra-high molecular weight polyethylene composite material for water-lubricated bearings. Background technique [0002] Ship propeller bearings mainly have two methods of water lubrication and oil lubrication. Compared with oil lubrication bearings, water lubrication bearings have the advantages of no pollution, low energy consumption, low friction coefficient, and low price, so they are widely used on ships. ground application. Water-lubricated bearings are composed of a bearing jacket and a bearing surface layer. The bearing jacket is mostly made of corrosion-resistant brass, and the bearing surface layer is mostly made of polymer materials. Among them, rubber and polyurethane are widely used due to their excellent performance. However, in the actual use process, it is found that under dry friction conditions such as water shortage, the friction perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L9/02C08L15/00C08L13/00C08K13/02C08K3/04C08K3/30C08K5/14C08K3/22F16C33/00
Inventor 郇彦刘佳杨小牛
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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