Preparation method of modified ultra-high molecular weight polyethylene composite

A technology of ultra-high molecular weight and composite materials, which is applied in the field of preparation of modified ultra-high molecular weight polyethylene composite materials, which can solve the problems of low surface hardness, poor resistance to abrasive wear and fatigue wear, and low thermal deformation temperature. Achieve the effects of improving friction and wear, improving erosion resistance, improving thermal stability and friction and creep resistance

Inactive Publication Date: 2018-01-30
中玺新材料(安徽)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultra-high molecular weight polyethylene is a linear structure with a molecular weight of more than 1.5 million. It has excellent friction resistance, impact resistance, self-lubrication, chemical resistance, low temperature resistance, hygiene and non-toxicity, and high tensile strength. High-performance thermoplastic engineering plastics are widely used in industry, agriculture, medical care, construction, chemical industry and national defense, but their surface hardness is low, heat distortion temperature is low, and their resistance to abrasive wear and fatigue wear is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A modified ultra-high molecular weight polyethylene composite material, the composite material consists of 80 parts of ultra-high molecular weight polyethylene, 7 parts of nano silicon dioxide, 5 parts of glass microspheres, and 0.1 part of a silane coupling agent. Among them, the relative molecular mass of ultra-high molecular weight polyethylene is 2-3 million.

[0017] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0018] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0019] (2) Dilute the silane coupling agent with absolute ethanol, mix and stir with nano silicon dioxide and glass microspheres evenly, then oscillate and disperse in an ultrasonic oscillator for 30 minutes, dry to constant weight, and grind;

[0020] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it into...

Embodiment 2

[0025] A modified ultra-high molecular weight polyethylene composite material, the composite material consists of 120 parts of ultra-high molecular weight polyethylene, 12 parts of nano silicon dioxide, 10 parts of glass microspheres, and 0.3 parts of a silane coupling agent. Among them, the relative molecular mass of ultra-high molecular weight polyethylene is 2-3 million.

[0026] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0027] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0028] (2) Dilute the silane coupling agent with absolute ethanol, mix and stir evenly with nano silicon dioxide and glass microspheres, then oscillate and disperse in an ultrasonic oscillator for 40 minutes, dry to constant weight, and grind;

[0029] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it ...

Embodiment 3

[0034] A modified ultra-high molecular weight polyethylene composite material, the composite material consists of 100 parts of ultra-high molecular weight polyethylene, 9 parts of nano silicon dioxide, 7 parts of glass microspheres, and 0.5 parts of a silane coupling agent. Among them, the relative molecular mass of ultra-high molecular weight polyethylene is 2-3 million.

[0035] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0036] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0037] (2) Dilute the silane coupling agent with absolute ethanol, mix and stir with nano silicon dioxide and glass microspheres evenly, then oscillate and disperse in an ultrasonic oscillator for 35 minutes, dry to constant weight, and grind;

[0038] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it in...

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PUM

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Abstract

The invention discloses a preparation method of a modified ultra-high molecular weight polyethylene composite, and belongs to the field of high polymer materials. The composite comprises 80-120 partsof ultra-high molecular weight polyethylene, 7-12 parts of nanosilicon dioxide, 5-10 parts of glass microsphere, and 0.1-0.8 part of silane coupling agent. The nanosilicon dioxide and the glass microsphere are added into the ultra-high molecular weight polyethylene, the nanosilicon dioxide particle and the glass microsphere blocks the extension and the plastic deformation of a furrow, and the embedding and the cutting of an abrasive particle are stopped. Proper amount of nanosilicon dioxide particle is filled to improve the frictional wear and the erosion resistance of the ultra-high molecularweight polyethylene, and the glass microsphere improves the thermal stability and the anti-friction croop property of the ultra-high molecular weight polyethylene.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a preparation method of a modified ultrahigh molecular weight polyethylene composite material. Background technique [0002] Polyethylene is one of the most widely used synthetic resins with the largest output, mainly used in industrial and agricultural production and all aspects of human life. There are many kinds of polyethylene, which can be divided into low molecular weight polyethylene, ordinary molecular weight polyethylene and ultra-high molecular weight polyethylene according to different molecular weights. Ultra-high molecular weight polyethylene is a linear structure with a molecular weight of more than 1.5 million. It has excellent friction resistance, impact resistance, self-lubrication, chemical resistance, low temperature resistance, hygiene and non-toxicity, and high tensile strength. High-performance thermoplastic engineering plastics are widely used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K9/06C08K7/20C08K3/36
Inventor 方庆忠叶院林
Owner 中玺新材料(安徽)有限公司
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