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A method for preparing graphene nanosheets by micro-friction and wear

A graphene nanosheet and micro-friction technology, applied in the direction of graphene, nano-carbon, etc., can solve the problems of high cost, high energy consumption, and large pollution

Active Publication Date: 2021-06-15
韦玛实业集团有限公司
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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 method for preparing graphene nanosheets by micro-friction and wear in order to solve the problems of high cost, large pollution and high energy consumption in the existing graphene nanosheet preparation method, which uses diamond micropowder to rub artificial graphite Balls have wider application prospects, that is, they can maintain the excellent characteristics of graphene, and have the advantages of environmental protection, simple operation, and low equipment cost.

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  • A method for preparing graphene nanosheets by micro-friction and wear
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specific Embodiment approach 1

[0012] Specific Embodiment 1: This embodiment records a method for preparing graphene nanosheets by micro-friction and wear. The specific steps of the method are as follows: Weigh artificial graphite balls and diamond micropowder according to the volume ratio of 1:2, and load them into a drum Among them, artificial graphite balls and diamond powder fillers account for 2 / 3 of the volume of the drum, adjust the motor speed, and after 20-40 hours of operation, take out the pulverized materials in the drum, rinse with deionized water, and wash out the slurry After filtration, cleaning and drying, graphene nanosheets are prepared, and the transmission photos are as follows: figure 1 shown.

specific Embodiment approach 2

[0013] Specific embodiment two: a kind of micro-friction and wear described in specific embodiment one prepares the method for graphene nanoplate, described artificial graphite ball is the pitch that adds 10~40% for natural graphite powder, mixes evenly in mixer , and then put it into the JBS-10YZ press mold produced by Minxiang Electric Co., Ltd. for pressing. After pressing, put it into the drying box, dry it at 60~80°C for 8 hours, and put it into carbonization after drying. Heating in the furnace, the heating temperature is 1200~1300°C, the holding time is 10 hours, after cooling to room temperature, put it into the graphitization furnace for graphitization treatment, the processing temperature is 2800~3000°C, and the holding time is 4~6 hours.

specific Embodiment approach 3

[0014] Specific embodiment three: a kind of micro-friction and wear described in specific embodiment one prepares the method for graphene nanoplate, described cylinder is a hexagonal cylinder, motor speed is 10~100m / min, and the size of artificial graphite ball is diameter φ10~30mm.

[0015] Embodiment 4: In Embodiment 1, a method for preparing graphene nanosheets by micro-friction and wear, the diameter of the diamond micropowder particles is 1-2 um.

[0016] Embodiment 5: Embodiment 1 describes a method for preparing graphene nanosheets by micro-friction and wear, wherein the material of the lining plate of the inner layer of the drum is nylon, and the outer layer is stainless steel plate.

[0017] Embodiment 6: Embodiment 1 describes a method for preparing graphene nanosheets through micro-friction and wear, and the motor is a stepless speed regulation motor.

[0018] Embodiment 7: The method for preparing graphene nanosheets by micro-friction and abrasion described in Emb...

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Abstract

The invention discloses a method for preparing graphene nanosheets by micro-friction and wear, which belongs to the field of deep processing of graphite, an inorganic non-metallic material. The method is as follows: Weigh a certain proportion of artificial graphite balls and diamond micropowder, put them into the drum, adjust the motor speed, and after running for 20-40 hours, take out the pulverized matter in the drum, rinse with deionized water, and wash out After the slurry is filtered, washed and dried, graphene nanosheets with excellent properties are prepared. The advantages of the present invention are: compared with the current preparation method, there is no pollution caused by a large amount of strong acid and strong oxidant used in the chemical redox method, and there is no disadvantage of high manufacturing cost and low efficiency of the chemical vapor deposition method. The method has the advantages of environmental protection, simple process and low cost.

Description

technical field [0001] The invention belongs to the field of deep processing of graphite, an inorganic non-metallic material, and in particular relates to a method for preparing graphene nanosheets by micro-friction and wear. Background technique [0002] In recent years, graphene, as a unique advanced material, is setting off a disruptive industrial revolution sweeping the world. It is the thinnest nanomaterial with the highest strength found in the world, and its strength is 100 times that of ordinary steel. At the same time, it has excellent electrical conductivity, and its resistivity is lower than that of copper or silver. It is the material with the lowest resistivity known in the world. In addition, graphene has the highest thermal conductivity known. This makes graphene an excellent heat dissipation material for heat dissipation in smartphones, tablet handheld computers, high-power and energy-saving LED lighting, and ultra-LCD TVs. At the same time, graphene has ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/184
CPCC01P2004/04C01P2004/20
Inventor 王振廷赵春香孟君晟
Owner 韦玛实业集团有限公司