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Method for preparing conductive graphene material

A kind of conductive graphite and graphene technology, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of poor compression set, low elongation at break, high cost, etc., and achieve good thermal conductivity and thermal stability. Good, low-cost effects

Inactive Publication Date: 2018-07-27
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

[0009] The invention provides a method for preparing a conductive 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

[0025] The first step: Weigh in proportion by parts by mass: 100 parts of graphite, 12 parts of benzoyl peroxide, 3 parts of carbon black, 4 parts of N,N-dimethylamide, 5 parts of absolute ethanol, ethylene glycol 2 parts of butyl ether, 3 parts of titanium dioxide, 15 parts of oleic acid, 10 parts of salicylic acid, 2.5 parts of urea, 4 parts of PET, 70 parts of CPVC, 5 parts of glass beads, 10 parts of graphene, 2 parts of titanate coupling agent .

[0026] The second step: put the graphite, oleic acid and PET into the grinding machine for grinding for 25 minutes, put them into an oven for drying for 20 minutes after passing through a 200-mesh sieve, and the oven drying temperature is 60 ℃, and then mix them with benzoyl peroxide, carbon black, N, N-dimethylamide and ethylene glycol butyl ether were put into a reaction kettle with a thermometer, a heating device and a stirring device, the temperature was raised to 50° C., stirred for 20 min, and the stirring speed was 80 r / m...

Embodiment 2

[0031] The first step: Weigh by weight: 100 parts of graphite, 16 parts of benzoyl peroxide, 5 parts of carbon black, 8 parts of N,N-dimethylamide, 9 parts of absolute ethanol, ethylene glycol 8 parts of butyl ether, 7 parts of titanium dioxide, 35 parts of oleic acid, 30 parts of salicylic acid, 4.5 parts of urea, 8 parts of PET, 90 parts of CPVC, 25 parts of glass beads, 30 parts of graphene, 6 parts of titanate coupling agent .

[0032]The second step: put the graphite, oleic acid and PET into the grinder for 45min grinding, after passing through a 300-mesh sieve, put it into an oven to dry for 30min, the oven drying temperature is 100 ℃, and then mix with benzoyl peroxide, carbon black, N, N-dimethylamide and ethylene glycol butyl ether were put into a reaction kettle with a thermometer, a heating device and a stirring device, the temperature was raised to 70 °C, and stirred for 40 min at a stirring speed of 120 r / min.

[0033] The third step: add titanium dioxide, urea, ...

Embodiment 3

[0037] The first step: Weigh in proportions by mass: 100 parts of graphite, 14 parts of benzoyl peroxide, 4 parts of carbon black, 6 parts of N,N-dimethylamide, 7 parts of absolute ethanol, ethylene glycol 5 parts of butyl ether, 3-7 parts of titanium dioxide, 25 parts of oleic acid, 20 parts of salicylic acid, 3.5 parts of urea, 6 parts of PET, 80 parts of CPVC, 15 parts of glass beads, 20 parts of graphene, titanate coupling agent 4 parts.

[0038] The second step: put the graphite, oleic acid and PET into the grinding machine for grinding for 35min, after passing through a 250-mesh sieve, put it into an oven for drying for 25min, the oven drying temperature is 80 ℃, and then mix with benzoyl peroxide, carbon black, N, N-dimethylamide and ethylene glycol butyl ether were put into a reaction kettle with a thermometer, a heating device and a stirring device, the temperature was raised to 60 °C, and stirred for 30 min at a stirring speed of 100 r / min.

[0039] The third step: ...

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Abstract

Provided is a method for preparing a conductive graphene material. The conductive graphene material is prepared from graphite, benzoyl peroxide, carbon black, N,N-dimethylformamide, absolute ethyl alcohol, butyl cellosolve, titanium dioxide, oleic acid, salicylic acid, urea, PET, CPVC, glasses beams, graphene and coupling agent, the raw materials are evenly mixed, after granulation is conducted, calcination is conducted to obtain the conductive graphene material; the sources of the raw materials are extensive, the cost is low, and the shore hardness is 100-110; various components have synergistic effects, the elongation at break reaches up to 450-650%, and the tensile strength is 150-350 megapascals; the permanent deformability of the compression is good, the energy density is high, the electrical conductivity is good, and the oxygen index is 35-55%; the heat stability is good, the conductive graphene material can be resistant to 300-500 DEG C of high temperature, is efficient and energy-saving and can be accurately prepared, various components can exert synergistic effects, the impact strength of a cantilever beam is 150-170 joules per meter, the use is convenient, the thermal conductivity is good, the process is simple, and the conductive graphene material can be widely used.

Description

technical field [0001] The invention relates to graphene materials, in particular to a preparation method of conductive graphene materials. Background technique [0002] Graphene is one of the strongest materials known. It also has good toughness and can be bent. Graphene has a theoretical Young's modulus of 1.0TPa and an inherent tensile strength of 130GPa. The reduced graphene modified by hydrogen plasma also has very good strength, and the average modulus can be as large as 0.25TPa. Graphite paper composed of graphene flakes has many pores, so graphite paper is very brittle, however, functionalized graphene obtained by oxidation, and then made of functionalized graphene into graphite paper will be exceptionally strong and strong. [0003] Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery, and is considered to be a revolutionary ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/04H01B13/00
CPCH01B1/04H01B13/00
Inventor 王勇夏英
Owner 苏州牛麦田新材料科技有限公司