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Preparation method of composite material and composite material

A technology of composite materials and mixtures, applied in the direction of graphene, nano-carbon, etc., can solve problems such as low strength, low surface hardness, and general mechanical properties

Inactive Publication Date: 2015-02-18
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

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Comparison scheme
Effect test

preparation example Construction

[0033] The preparation method of a kind of composite material of the present invention, comprises the following steps according to mass proportion:

[0034] a. Add 0.3-0.5 parts of single-layer graphene oxide to 79 parts of absolute ethanol, magnetically stir and then ultrasonically peel off; b. Add 100 parts of UHMWPE to the solution obtained through step a, magnetically stir again and then ultrasonically peel off; c. 1. Completely dry the mixture obtained in step b; d. Grind and pulverize the dried product after step c; e. After step d, use a flat vulcanizer to pre-press for 10-20min at a pressure of 5-10MPa; f. After the treatment in step e, hot air drying treatment; g. Vulcanization treatment and cooling.

Embodiment 1

[0036] The preparation method of a kind of composite material described in embodiment 1 of the present invention, comprises the following steps:

[0037] a. Add 0.3 gram of single-layer graphene oxide into 79 grams of absolute ethanol, stir magnetically at a speed of 150r / min for 2 hours, then place the stirred solution in an ultrasonic cleaning machine for ultrasonic peeling for 30 minutes; wherein absolute ethanol The specific gravity with water is calculated as 0.79, that is, 79ml of absolute ethanol;

[0038] b. Add 100 grams of UHMWPE to the solution obtained in step a, magnetically stir at a speed of 100 r / min for 1 hour, and then place it in an ultrasonic cleaning machine for ultrasonic peeling for 15 minutes;

[0039] c, place the mixture obtained through step b in a constant temperature water bath, and keep it warm at 60 degrees Celsius until it is completely dry;

[0040] d. Place the dry matter treated in step c in a ball mill and pulverize it at a speed of 300r / mi...

Embodiment 2

[0049]The preparation method of a kind of composite material described in embodiment 2 of the present invention, comprises the following steps according to mass gram ratio:

[0050] a. Add 0.4 gram of single-layer graphene oxide to 79 grams of absolute ethanol, stir magnetically at a speed of 160r / min for 2 hours, then place the stirred solution in an ultrasonic cleaning machine for ultrasonic peeling for 30 minutes; wherein absolute ethanol The specific gravity with water is calculated as 0.79, that is, 79ml of absolute ethanol;

[0051] b. Add 100 grams of UHMWPE to the solution obtained in step a, stir magnetically at a speed of 110 r / min for 1 hour, and then place it in an ultrasonic cleaning machine for ultrasonic peeling for 20 minutes;

[0052] c, place the mixture obtained through step b in a constant temperature water bath, and keep it warm at 60 degrees Celsius until it is completely dry;

[0053] d. Place the dry matter treated in step c in a ball mill and pulveriz...

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Abstract

The invention relates to a preparation method of a composite material and the composite material. The preparation method comprises the following steps in parts by weight: a, adding 0.3-0.5 part of monolayer graphene oxide into 79 parts of anhydrous ethanol and ultrasonically stripping after magnetic stirring; b, adding 100 parts of UHMWPE (ultrahigh molecular weight polyethylene) into a solution and ultrasonically stripping after magnetic stirring; c, drying; d, grinding and smashing the dried substance; e, pre-pressing for 10-20 minutes at the pressure of 5-10MPa by using a press vulcanizer; f, electrically heating and airing; and g, sulfidizing and cooling. The composite material prepared by the method comprises 0.3-0.5 part by weight of monolayer graphene oxide and 100 parts by weight 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 the friction and wear properties of the composite material 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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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K9/04C08K3/04C01B31/04B29C35/02
CPCB29C35/02C08K3/04C08K9/04C08L23/06C08L2207/068C01B32/184
Inventor 倪自丰赵治安陈国美黄国栋
Owner JIANGNAN UNIV
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