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Graphene-containing wear-resistant composite material and preparation method thereof

A composite material and graphene technology, which is applied in the field of composite materials containing graphene, can solve the problems of insignificant performance improvement and poor directivity of graphene, etc., and achieve reduced deformation capacity, reduced possibility of wear, constant The effect of increasing tensile stress

Active Publication Date: 2019-04-16
国宏中晶集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of improved preparation method, to solve the directivity of adding graphene in the chloroprene rubber of existing technology is not strong, performance improvement is not obvious, compared with prior art only analysis adds to bring impact, this application goes a step further, and points out the direction for how to improve the wear resistance to a satisfactory level

Method used

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  • Graphene-containing wear-resistant composite material and preparation method thereof

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Embodiment 1

[0014] A preparation method of a wear-resistant composite material containing graphene, which has prepared the wear-resistant composite material containing graphene as claimed in claim 4, is characterized in that, comprises the following steps: 1) graphene microchip preparation step: A large number of prefabricated expanded graphite sheets are used as raw materials, and the graphene microplate dispersion is generated by ultrasonic peeling in absolute ethanol for more than 1-2 hours; the solvent absolute ethanol of the graphene microplate dispersion is supplemented to more than 220ml, and the high Intensity ultrasonic vibration for 4 minutes, immediately discard half of the dispersion liquid in the upper layer, and then replenish to a volume of more than 220ml, repeat the above process at least 8 times, until the average radial size of the graphene microsheets is higher than 5um; spin evaporate all solvents, and obtain Graphene microflakes with large radial dimensions. The numb...

Embodiment 2

[0019] A preparation method of a wear-resistant composite material containing graphene, which has prepared the wear-resistant composite material containing graphene as claimed in claim 4, is characterized in that, comprises the following steps: 1) graphene microchip preparation step: A large number of prefabricated expanded graphite sheets are used as raw materials, and the graphene microplate dispersion is generated by ultrasonic peeling in absolute ethanol for more than 1-2 hours; the solvent absolute ethanol of the graphene microplate dispersion is supplemented to more than 270ml, and the high Intensity ultrasonic vibration for 5 minutes, immediately discard half of the dispersion liquid in the upper layer, and then replenish to a volume of more than 270ml, repeat the above process at least 8 times, until the average radial size of the graphene microsheets is higher than 10um; spin evaporate all solvents, and obtain Graphene microflakes with large radial dimensions.

[0020...

Embodiment 3

[0024]A kind of wear-resistant composite material containing graphene, it adopts the preparation method of a kind of wear-resistant composite material containing graphene as before to prepare, it is characterized in that: this composite material is sheet layer, and it comprises raw material 500g latex adding chlorine The flocculated masterbatch produced in 4g of calciferous calcium has 15g of zinc oxide, 18g of analytically pure magnesium oxide, 3g of stearic acid, 2g of accelerator NA-22, and 25g of graphene microflakes of large radial size evenly dispersed therein.

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Abstract

Disclosed are a graphene-containing wear-resistant composite material and a preparation method thereof. The composite material is in a sheet-layer shape, and by weight, 500 g of latex correspondinglycontains 3-5 g of calcium chloride, 10-20 g of zinc oxide, 15-25 g of analytically-pure magnesium oxide, 2-6 g of stearic acid, 1-3 g of an accelerator NA-22 and 20-30 g of large-radial-size graphenemicrochips, wherein calcium chloride, zinc oxide, analytically-pure magnesium oxide, stearic acid, the accelerator NA-22 and the large-radial-size graphene microchips are uniformly dispersed in the latex. The preparation method comprises the steps of preparation of the graphene microchips, preparation, preparation of rubber masterbatches and preparation of the sheet-layer composite material.

Description

technical field [0001] The invention relates to the technical field of composite materials containing graphene, in particular to a wear-resistant composite material containing graphene and a preparation method thereof. Background technique [0002] Graphene is a two-dimensional material composed of carbon atoms with a thickness of only one atom. It has excellent physical and chemical properties, such as excellent mechanical properties, high electrical conductivity, and good thermal conductivity. It is considered to be the most One of the potential nanomaterials. As a one-dimensional carbon nanomaterial, carbon nanofiber has the advantages of good mechanical properties, large specific surface area and good chemical stability. These special properties make it widely used in catalyst supports, polymer nanocomposites, energy Flexible substrate materials for conversion and storage devices, etc. Taking graphene microchip as an example, it not only has good physical properties an...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08K13/02C08K3/04C08K3/16C08K3/22
CPCC08K3/16C08K3/22C08K13/02C08K2003/162C08K2003/222C08K2003/2296C08K3/042C08L11/00
Inventor 张岩付吉国董伟赵然周卫东曾蕾
Owner 国宏中晶集团有限公司