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Nitrogen-doped graphene modified graphite raw stock and preparation method thereof

A graphene modification and graphene technology, which is applied in the direction of cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, electrical components, etc., can solve the problem of further improvement of electrical conductivity and poor conductivity of coating thickness advanced questions

Active Publication Date: 2017-02-15
安徽森淼实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conductivity of ordinary graphite puree needs to be further improved. In addition, the coating thickness of graphite puree is also the main reason for its low conductivity.

Method used

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  • Nitrogen-doped graphene modified graphite raw stock and preparation method thereof

Examples

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Effect test

preparation example 1

[0019] Preparation of nitrogen-doped graphene: Add 100g of urea (analytical pure) to 100mL of graphene oxide solution, stir and mix thoroughly; blow dry at 40°C for 10h to obtain mixed powder; then calcine the mixed powder to obtain the Nitrogen doped graphene. Wherein, the steps of calcination used are: starting from 20°C to 800°C and maintaining at 800°C for 1 hour, wherein the heating rate is 5°C / min; then cooling down to 30°C at a cooling rate of 10°C / min; wherein, the The calcination atmosphere is N2, and the flow rate of N2 is 0.001m3 / h.

preparation example 2

[0021] Preparation of nitrogen-doped graphene: Add 150g of urea (analytical pure) to 100mL of graphene oxide solution, stir and mix thoroughly; blow dry at 60°C for 6h to obtain a mixed powder; then calcinate the mixed powder to obtain the Nitrogen doped graphene. Wherein, the steps of calcination used are: starting from 20°C to 800°C and maintaining at 800°C for 1 hour, wherein the heating rate is 5°C / min; then cooling down to 30°C at a cooling rate of 10°C / min; wherein, the The calcination atmosphere is N2, and the flow rate of N2 is 0.001m3 / h.

Embodiment 1

[0023] Nitrogen-doped graphene, conductive graphite, polypropylene resin (weight average molecular weight is 10,000), glass powder, zinc powder, ethylene glycol ether, hydroxypropyl methylcellulose and polyvinylpyrrolidone are according to the weight ratio: 10: 100: 25: 1: 1: 30: 1: 1 Stirring for 2 hours at a rotation speed of 2000 rpm to obtain nitrogen-doped graphene modified graphite puree A1;

[0024] Wherein, the added nitrogen-doped graphene is prepared from Preparation Example 1.

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Abstract

The invention discloses a nitrogen-doped graphene modified graphite raw stock. A preparation method of the nitrogen-doped graphene modified graphite raw stock comprises the step of mixing nitrogen-doped graphene, conductive graphite, resin, glass powder, zinc powder, glycol ether, hydroxypropyl methyl cellulose and polyvinyl pyrrolidone to obtain the nitrogen-doped graphene modified graphite raw stock. The nitrogen-doped graphene modified graphite raw stock has very strong conductivity and is low in unit dosage.

Description

technical field [0001] The invention relates to graphite puree, in particular to nitrogen-doped graphene modified graphite puree and a preparation method thereof. Background technique [0002] Graphite puree is made of conductive graphite or carbon black as the main raw material, and the prepared graphite puree is widely used in communication products, computers, portable electronic products, network hardware, medical instruments, household electronic products and aerospace electronic products. However, the electrical conductivity of general graphite puree needs to be further improved. In addition, the coating thickness of graphite puree is also the main reason for its low conductivity. Contents of the invention [0003] The object of the present invention is to provide a nitrogen-doped graphene-modified graphite protoplasm, which has strong electrical conductivity and a small unit dosage. [0004] In order to achieve the above object, the present invention provides a pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/18H01B1/24H01B13/00
CPCH01B1/18H01B1/24H01B13/00
Inventor 马西健
Owner 安徽森淼实业有限公司
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