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Preparation method of high-strength graphene composite material

A composite material and graphene technology, applied in the field of graphene materials, can solve problems such as poor compression set, low elongation at break, high cost, etc., and achieve excellent solvent resistance, good electrical conductivity, and low cost.

Inactive Publication Date: 2018-09-07
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-strength graphene composite 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, 3 parts of sodium lignosulfonate, 1.5 parts of aluminum oxide powder, 15 parts of carbon black, 60 parts of trimethylolpropane polyether, zirconia 15 parts, 1 part of silicon dioxide, 15 parts of nano-boron nitride, 15 parts of polyurethane acrylate, 3 parts of zinc borate, 5 parts of glass microspheres, 8 parts of zinc oxide, 20 parts of PC, 45 parts of talcum powder, titanate couple Joint agent 2 parts.

[0027] Step 2: put graphite, nano-boron nitride and glass microspheres into the grinder and grind for 50 minutes, pass through a 100-mesh sieve and then put them into the In the reaction kettle with thermometer, heating device and stirring device, heat up to 55°C, stir for 60min, and stir at a speed of 240-280 r / min.

[0028] Step 3: Add silicon dioxide, zinc borate, zinc oxide and PC, raise the temperature to 75°C, react at a constant temperature for 50 minutes, stir evenly, put it into a...

Embodiment 2

[0032]Step 1: Weigh according to the ratio of parts by mass: 100 parts of graphite, 7 parts of sodium lignosulfonate, 3.5 parts of aluminum oxide powder, 35 parts of carbon black, 80 parts of trimethylolpropane polyether, zirconia 25 parts, 5 parts of silicon dioxide, 35 parts of nano-boron nitride, 25 parts of polyurethane acrylate, 7 parts of zinc borate, 9 parts of glass beads, 12 parts of zinc oxide, 40 parts of PC, 65 parts of talcum powder, titanate couple Joint agent 6 parts.

[0033] Step 2: Put graphite, nano-boron nitride and glass microspheres into the grinder and grind for 70 minutes, pass through a 500-mesh sieve, and then put them into the belt with sodium lignosulfonate, aluminum oxide powder, carbon black and zirconia In the reaction kettle with thermometer, heating device and stirring device, the temperature was raised to 65°C, and stirred for 80 minutes at a stirring speed of 280 r / min.

[0034] Step 3: Add silicon dioxide, zinc borate, zinc oxide and PC, ra...

Embodiment 3

[0038] Step 1: Weigh according to the ratio of parts by mass: 100 parts of graphite, 5 parts of sodium lignosulfonate, 2.5 parts of aluminum oxide powder, 25 parts of carbon black, 70 parts of trimethylolpropane polyether, zirconia 20 parts, 3 parts of silicon dioxide, 25 parts of nano-boron nitride, 20 parts of polyurethane acrylate, 5 parts of zinc borate, 7 parts of glass beads, 10 parts of zinc oxide, 30 parts of PC, 55 parts of talcum powder, titanate couple Joint agent 4 parts.

[0039] Step 2: Put graphite, nano-boron nitride and glass microspheres into the grinder and grind for 60 minutes, pass through a 300-mesh sieve, and then put them together with sodium lignosulfonate, aluminum oxide powder, carbon black and zirconia In the reaction kettle with thermometer, heating device and stirring device, the temperature was raised to 60°C, stirred for 70 minutes, and the stirring speed was 260 r / min.

[0040] Step 3: Add silicon dioxide, zinc borate, zinc oxide and PC, heat ...

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Abstract

The invention relates to a preparation method of a high-strength graphene composite material. The high-strength graphene composite material is prepared from the raw materials: graphite, sodium lignosulphonate, aluminium oxide powder, carbon black, trimethylolpropane polyether, zirconium oxide, silicon dioxide, nano boron nitride, polyurethane acrylate, zinc boronate, glass microbeads, zinc oxide,PC, talcum powder and coupling agent. The preparation method comprises the following steps: uniformly mixing the raw materials, plasticizing, granulating, and then calcining, thus obtaining the high-strength graphene composite material. The raw material is wide in source, the cost is low, the vicat softening point is 190 to 230 DEG C, the shore hardness is 80 to 90, the bending strength is 70 to 110 MPa, the elongation at break reaches up to 250 to 350 per cent, the tensile strength is 100 to 200 MPa, the solvent resistance is excellent, the compressive permanent deformation is good, the strength is high, the energy density is high, and the conductivity is good; and the operation is simple and easy, the efficiency is high, the energy is saved, accuracy in preparation can be realized, the notch impact strength is 105 to 145 J / m, the use is convenient, the heat conductivity is good, the process is simple, and the preparation method can be widely used.

Description

technical field [0001] The invention relates to a graphene material, in particular to a preparation method of a high-strength graphene composite material. Background technique [0002] Graphene is one of the materials with the highest strength known, and it also has good toughness and can be bent. The theoretical Young's modulus of graphene reaches 1.0TPa, and its inherent tensile strength is 130GPa. The reduced graphene modified by hydrogen plasma also has very good strength, and the average modulus can be greater than 0.25TPa. Graphite paper composed of graphene flakes has many pores, so graphite paper is very brittle. However, functionalized graphene obtained through oxidation, and then graphite paper made from functionalized graphene will be extremely strong and strong. [0003] The carrier mobility of graphene at room temperature is about 15000 cm 2 / (V s), this value is more than 10 times that of silicon materials, and more than twice that of indium antimonide (InSb)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/52C04B35/622
CPCC04B35/522C04B35/622C04B2235/3217C04B2235/3244C04B2235/3284C04B2235/3409C04B2235/3418C04B2235/349C04B2235/36C04B2235/386C04B2235/424C04B2235/96
Inventor 王勇夏英
Owner 苏州牛麦田新材料科技有限公司