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Preparation method of high-hardness graphene material

A graphene, high-hardness technology, applied in sustainable manufacturing/processing, chemical industry, climate sustainability, etc., can solve the problems of poor compression set, low elongation at break, high cost, etc., achieve precise preparation, The effect of good conductivity and low cost

Inactive Publication Date: 2018-09-21
苏州牛麦田新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The invention provides a method for preparing a high-hardness graphene material, which solves the technical problems of existing graphene materials such as high cost, poor compression set, low elongation at break, and low hardness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Weigh according to the ratio of parts by mass: 100 parts of graphite, 10 parts of sorbitan monooleate, 3 parts of talcum powder, 5 parts of glacial acetic acid, 0.5 parts of lead, 15 parts of aramid fiber, urothene 0.6 parts of product, 15 parts of dimethylacetamide, 3 parts of calcium carbonate, 2 parts of silicon dioxide, 4 parts of PVDF, 10 parts of diisodecyl phthalate, 8 parts of tribasic lead sulfate, 1.5 parts of titanium dioxide, Phosphate 2 parts.

[0027] Step 2: put graphite, dimethylacetamide and PVDF into the grinding machine and grind for 20 minutes, pass through a 300-mesh sieve and put them into an oven to dry for 15 minutes. Put talcum powder, glacial acetic acid and aramid fibers together into a reaction kettle equipped with a thermometer, a heating device and a stirring device, raise the temperature to 50°C, and stir for 40 minutes at a stirring speed of 160 r / min.

[0028] Step 3: Add urotropine, silicon dioxide, diisodecyl phthalate and tri...

Embodiment 2

[0032]Step 1: Weigh according to the ratio of parts by mass: 100 parts of graphite, 30 parts of sorbitan monooleate, 5 parts of talcum powder, 15 parts of glacial acetic acid, 4.5 parts of lead, 25 parts of aramid fiber, uroto 1 part, 35 parts of dimethylacetamide, 7 parts of calcium carbonate, 6 parts of silicon dioxide, 8 parts of PVDF, 30 parts of diisodecyl phthalate, 12 parts of tribasic lead sulfate, 5.5 parts of titanium dioxide, Phosphate 6 parts.

[0033] Step 2: Put graphite, dimethylacetamide and PVDF into the grinder and grind for 30 minutes, pass through a 400-mesh sieve and put them into an oven to dry for 55 minutes. Put talcum powder, glacial acetic acid and aramid fiber together into a reaction kettle equipped with a thermometer, a heating device and a stirring device, raise the temperature to 70°C, and stir for 60 minutes at a stirring speed of 200 r / min.

[0034] Step 3: Add urotropine, silicon dioxide, diisodecyl phthalate and tribasic lead sulfate, heat u...

Embodiment 3

[0038] Step 1: Weigh according to the ratio of parts by mass: 100 parts of graphite, 20 parts of sorbitan monooleate, 4 parts of talcum powder, 10 parts of glacial acetic acid, 2.5 parts of lead, 20 parts of aramid fiber, uroto 0.8 parts of product, 25 parts of dimethylacetamide, 5 parts of calcium carbonate, 4 parts of silicon dioxide, 6 parts of PVDF, 20 parts of diisodecyl phthalate, 10 parts of tribasic lead sulfate, 3.5 parts of titanium dioxide, Phosphate 4 parts.

[0039] The second step: put graphite, dimethylacetamide and PVDF into the grinder and grind for 25 minutes, pass through a 350-mesh sieve and put them into an oven to dry for 35 minutes. Put talcum powder, glacial acetic acid and aramid fibers together into a reaction kettle equipped with a thermometer, a heating device and a stirring device, raise the temperature to 60°C, and stir for 50 minutes at a stirring speed of 180 r / min.

[0040] Step 3: Add urotropine, silicon dioxide, diisodecyl phthalate and trib...

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Abstract

Disclosed is a preparation method of a high-hardness graphene material. The high-hardness graphene material is prepared by evenly mixing, plasticizing, granulating and calcining graphite, sorbitan monooleate, talc, glacial acetic acid, lead, aramid fibers, urotropine, dimethyl acetamide, calcium carbonate, silicon dioxide, PVDF, diisononyl phthalate, tribasic lead sulfate, titanium dioxide and antioxidants. The raw materials are wide in source, the cost is low, the Rockwell hardness is 110-150, and the mechanical properties are good; the elongation at break is up to 600-800%, the tensile strength is 180-220 MPa, and the heat distortion temperature is 400-600 DEG C; the compression set is good, the energy density is high, the electric conductivity is good, and the notch impact strength is 70-90 J / m; the material is high in electric conductivity, efficient, capable of saving energy and being accurately prepared and widely used, convenient to use, good in thermal conductivity and simple in process, and the impact strength of cantilever beams is 130-150 J / m.

Description

technical field [0001] The invention relates to a graphene material, in particular to a preparation method of a high-hardness graphene material. Background technique [0002] The chemical properties of graphene are similar to graphite, and graphene can adsorb and desorb various atoms and molecules. When these atoms or molecules are used as donors or acceptors, the concentration of graphene carriers can be changed, while graphene itself can maintain good conductivity. But when other substances are adsorbed, such as H+ and OH-, some derivatives will be produced, which will make the conductivity of graphene worse, but no new compounds will be produced. Therefore, graphite can be used to infer the properties of graphene. For example, the generation of graphane is based on two-dimensional graphene, adding one more hydrogen atom to each carbon atom, so that the sp2 carbon atoms in graphene become sp3 hybridization. Soluble fragments of graphene that can be prepared in the labor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/10C08L27/16C08K13/02C08K3/04C08K3/34C08K3/08C08K3/26C08K3/36C08K3/22
CPCC08K2003/2241C08K2003/265C08K2201/001C08L77/10C08L27/16C08K13/02C08K3/04C08K3/34C08K3/08C08K3/26C08K3/36C08K3/22Y02P20/10
Inventor 王勇夏英
Owner 苏州牛麦田新材料科技有限公司