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Modified ultrahigh molecular weight polyethylene composite material

A technology of ultra-high molecular weight and composite materials, which is applied in the field of modified ultra-high molecular weight polyethylene composite materials, can solve the problems of poor abrasive wear and fatigue wear resistance, low surface hardness, and low thermal deformation temperature, etc., and achieve improvement Effects of friction wear and erosion resistance, improved thermal stability and friction creep resistance

Inactive Publication Date: 2018-02-23
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

[0013] 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.

[0014] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0015] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0016] (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;

[0017] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it into...

Embodiment 2

[0022] 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.

[0023] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0024] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0025] (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;

[0026] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it ...

Embodiment 3

[0031] 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.

[0032] A preparation method for modified ultra-high molecular weight polyethylene composite material, comprising the following steps:

[0033] (1) Constant temperature drying of nano silicon dioxide and glass microspheres to constant weight, then weighing;

[0034] (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;

[0035] (3) Mix the mixture prepared in step (2) with ultra-high molecular weight polyethylene, and put it in...

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Abstract

The invention discloses a modified ultrahigh molecular weight polyethylene composite material, and belongs to the field of high-molecular materials. The composite material comprises the following components: 80-120 parts of ultrahigh molecular weight polyethylene, 7-12 parts of nanometer silica, 5-10 parts of glass bead, and 0.1-0.8 parts of a silane coupling agent. Nanometer silica and glass beads are added into the ultrahigh molecular weight polyethylene, and nanometer silica particles and glass beads can block expansion of furrows and plastic deformation, and block embedding and cutting ofabrasive particles. A proper amount of nanometer silica particles are added in order to improve friction and wearing as well as anti-erosion performance of ultrahigh molecular weight polyethylene; glass beads can improve heat stability and anti-friction creep deformation performance of ultrahigh molecular weight polyethylene.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to 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 in industry, agriculture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K9/06C08K3/36C08K7/20
CPCC08K9/06C08K3/36C08K7/20C08L2207/068C08L23/06
Inventor 方庆忠叶院林
Owner 中玺新材料(安徽)有限公司
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