Composite water-lubricated bearing material and preparation method thereof

A water-lubricated bearing and composite technology, applied in the field of composite materials, can solve the problems of low elastic modulus, aging, and large friction coefficient of rubber, and achieve the effect of simple process, excellent friction resistance and good impact resistance

Inactive Publication Date: 2019-06-07
CHANGCHUN A&Z SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rubber has low elastic modulus, poor bearing capacity, and there are phenomena such as aging and crawling.
Polyurethane tends to generate a lot of heat du

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] The invention also provides a method for preparing the composite water-lubricated bearing material, which includes the following steps:

[0042] Step 1. Weigh each raw material according to the above weight parts;

[0043] Step 2: Heat and blend the polyurethane prepolymer and polyethylene oxide sodium at 150-160°C to obtain the first component;

[0044] Step 3. Add polyoxyethylene polyoxypropanolamine ether to the first component to obtain the second component;

[0045] Step 3. Mixing polytetrafluoroethylene, glass fiber, boron carbide and lead powder to obtain the third component;

[0046] Step 4. Add the third component to the second component and mix evenly to obtain the fourth component;

[0047] Step 5. Add 4, 4 to the fourth component / -Methylene bis(3-chloro-2,6-diethylaniline), stir well;

[0048] Step 6. Put the mixed raw materials obtained in step 5 into a mold, and obtain the composite water-lubricated bearing material after demolding and shaping.

[0049] Preferably, t...

Example Embodiment

[0050] Example 1

[0051] The present invention provides a composite water-lubricating bearing material, which is composed of the following raw materials by weight: 100 parts of polyurethane prepolymer; 10 parts of sodium oxide polyethylene; 1.5 parts of polyoxyethylene polyoxypropanolamine ether; 4,4 / -20 parts of methylene bis(3-chloro-2,6-diethyl aniline); 2.5 parts of polytetrafluoroethylene; 3 parts of glass fiber; 8 parts of boron carbide; 8 parts of lead powder. The polyurethane prepolymer is prepared from polytetrahydrofuran polyol and 2,4-toluene diisocyanate (prepared according to a method commonly used in the art), the molar ratio of the polytetrahydrofuran polyol and 2,4-toluene diisocyanate The ratio is 2:1, and the molecular weight of the polytetrahydrofuran polyol is 1000-2000.

[0052] The invention also provides a method for preparing the composite water-lubricated bearing material, which includes the following steps:

[0053] Step 1. Weigh each raw material accord...

Example Embodiment

[0060] Example 2

[0061] The present invention provides a composite water-lubricated bearing material, which is composed of the following parts by weight of raw materials: 100 parts of polyurethane prepolymer; 20 parts of sodium oxide polyethylene; 1.8 parts of polyoxyethylene polyoxypropanolamine ether; 4,4 / -30 parts of methylene bis(3-chloro-2,6-diethyl aniline); 3 parts of polytetrafluoroethylene; 4 parts of glass fiber; 10 parts of boron carbide; 10 parts of lead powder. The polyurethane prepolymer is prepared from polytetrahydrofuran polyol and 2,4-toluene diisocyanate (prepared according to a method commonly used in the art), the molar ratio of the polytetrahydrofuran polyol and 2,4-toluene diisocyanate The ratio is 2:1, and the molecular weight of the polytetrahydrofuran polyol is 1000-2000.

[0062] Step 1. Weigh each raw material according to the above weight parts;

[0063] Step 2. Heat and blend the polyurethane prepolymer and polyethylene oxide sodium at 160°C to obta...

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PUM

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Abstract

The invention relates to the technical field of composite materials, and relates to a composite water-lubricated bearing material and a preparation method thereof. The composite water-lubricated bearing material comprises the following raw materials in parts by weight: 100 parts of polyurethane pre-polymer, 10-20 parts of sodium polyethylene oxide, 1.5-1.8 parts of polyoxyethylene polyoxypropanolamine ether, 20-30 parts of 4,4'-methylene bis(3-chloro-2,6-diethylaniline), 2.5-3 parts of polytetrafluoroethylene, 3-4 parts of glass fiber, 8-10 parts of boron carbide, and 8-10 parts of lead powder. The obtained composite water-lubricated bearing material has the advantages of excellent friction resistance and good impact resistance through synergistic actions of the components. The preparationmethod of the composite water-lubricated bearing material has simple process and is suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a composite water-lubricated bearing material and a preparation method thereof. Background technique [0002] Water-lubricated bearings use water as the lubricating and working medium, which can reduce the environmental pollution of traditional bearings that use oil as the lubricating medium, and save a lot of oil. In addition, water has the advantages of no pollution, wide range of sources, safety and flame retardancy. If water is used instead of oil as the lubricating medium, it will bring an unprecedented revolution to the traditional mechanical transmission system, and the structure and materials of water-lubricated bearings will therefore It has become the object of attention of mechanical design and material researchers from all over the world. [0003] Water-lubricated bearings are composed of a bearing jacket and a bearing surface layer. The bearing jacket is...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L23/30C08L71/02C08L27/18C08K7/14C08K3/38C08K5/18C08K3/08C08K13/04
Inventor 王杰郇彦
Owner CHANGCHUN A&Z SCI CO LTD
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