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Preparation method of composite material and composite material

A composite material and plate technology, which is applied in the preparation of ultra-high molecular weight polyethylene composite materials, the preparation method of composite materials and the field of composite materials, can solve the problems of low strength, general mechanical properties, low surface hardness, etc.

Inactive Publication Date: 2015-02-04
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, UHMWPE materials have low surface hardness and low strength. Therefore, traditional UHMWPE composite materials mostly use Al2O3, SiO2, montmorillonite, kaolin, carbon nanotubes, etc. as fillers. However, the mechanical properties of these fillers are relatively general and need further research Therefore, further improving its mechanical performance is of great significance to industrial applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of a kind of composite material described in embodiment 1 of the present invention, comprises the following steps:

[0031] a. Add 0.1 part of single-layer graphene oxide into 500 parts of solvent, fully disperse, and then place it in an ultrasonic cleaning machine with 200W ultrasonic for 0.5 hours;

[0032] b. Add 99.9 parts of UHMWPE to the solution obtained in step a, stir magnetically for 30 minutes, and then place it in an ultrasonic cleaner for 0.5 hours;

[0033] c. Place the mixture obtained in step b in a water bath, and keep it warm at 40°C until it is completely dry;

[0034] d. Place the dry matter treated in step c in a ball mill and pulverize it at a speed of 300r / min for 2 hours;

[0035] e. After the treatment in step d, use a flat vulcanizer to pre-press for 10 minutes at a pressure of 4 MPa at room temperature, and then heat it in an incubator at 180 ° C for 1.5 hours, then use a flat vulcanizer to press mold at a pressure of 8...

Embodiment 2

[0041] A method for preparing a composite material described in Embodiment 2 of the present invention comprises the following steps:

[0042] a. Add 1 part of single-layer graphene oxide into 500 parts of solvent, fully disperse, and then place it in an ultrasonic cleaning machine with 300W ultrasonic for 1.5 hours;

[0043] b. Add 99 parts of UHMWPE to the solution obtained in step a, stir magnetically for 60 minutes, and then place it in an ultrasonic cleaner for 1.5 hours;

[0044] c. Place the mixture obtained in step b in a water bath, and keep it warm at 60°C until it is completely dry;

[0045] d. Place the dry matter treated in step c in a ball mill and pulverize it at a speed of 500r / min for 4 hours;

[0046] e. After the treatment in step d, use a flat vulcanizer to pre-press for 20 minutes at a pressure of 7 MPa at room temperature, and then heat it in an incubator at 210 ° C for 2 hours, then use a flat vulcanizer to press mold under a pressure of 15 MPa to obtain...

Embodiment 3

[0052]The preparation method of a kind of composite material described in embodiment three of the present invention, comprises the following steps according to mass gram ratio:

[0053] a. Add 5 parts of single-layer graphene oxide into 500 parts of solvent, and after fully dispersing, put it in an ultrasonic cleaning machine with 400W ultrasonic for 2 hours;

[0054] b. Add 95 parts of UHMWPE to the solution obtained in step a, stir magnetically for 90 minutes, and then put it in an ultrasonic cleaner for 2 hours;

[0055] c. Place the mixture obtained in step b in a water bath, and keep it warm at 80°C until it is completely dry;

[0056] d. Place the dry matter treated in step c in a ball mill, and pulverize it at a speed of 600r / min for 6 hours;

[0057] e. After the treatment in step d, use a flat vulcanizer to pre-press for 30 minutes at a pressure of 9 MPa at room temperature, and then heat it in an incubator at 250 ° C for 3 hours, then use a flat vulcanizer to press ...

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Abstract

The invention relates to a preparation method of a composite material and the composite material. The preparation method of the composite materials comprises the following steps: a, adding 0.1-5 parts by mass of mono-layer graphene oxide to 500 parts by mass of a solvent, sufficiently dispersing and carrying out ultrasonic treatment; b, adding 95-99.9 parts by mass of UHMWPE to the solution obtained in the step a, magnetically stirring and stripping ultrasonically; c, carrying out drying treatment; d, grinding and crushing; e, prepressing by using a press vulcanizer, holding the temperature, carrying out compression moulding treatment to obtain a plate, and cooling; and f, irradiating the plate for 5-9d by using an electron beam or radioactive source cobalt with the irradiation dose being 50-150kGy, thus finishing the preparation. The composite material comprises 0.1-5 parts by mass of mono-layer graphene oxide and 95-99.9 parts by mass of UHMWPE. According to the preparation method of the composite material and the composite material, the mechanical property of UHMWPE is improved and the hardness, the tensile property and friction and wear properties are improved.

Description

technical field [0001] The invention relates to a preparation method of a composite material and the composite material, in particular to a preparation method of an ultra-high molecular weight polyethylene composite material, and belongs to the technical field of polymer materials. Background technique [0002] UHMWPE (Ultra High Molecular Weight Polyethylene) is a thermoplastic engineering material with excellent performance. The molecular weight is usually above 1.5 million, which is 100 times higher than ordinary polyethylene, so it is also called ultra-high molecular weight polyethylene. UHMWPE has good wear resistance, impact resistance, tensile properties and self-lubricating properties. It is widely used in aerospace, national defense, industrial engineering, medical and health and other fields. It is the most widely used project in the world. One of plastic. However, UHMWPE materials have low surface hardness and low strength. Therefore, traditional UHMWPE composite...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/00C08K3/04C08J3/28B29C35/02
CPCB29C35/02C08J3/28C08K3/04C08K9/00C08L23/06C08L2207/068
Inventor 倪自丰黄国栋陈国美赵治安庞文超
Owner JIANGNAN UNIV
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