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Carbon composite material and preparation method thereof

A technology of carbon composite materials and manufacturing methods, applied in the direction of carbon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of multi-stage, medium performance of carbon composite materials, hindering the preparation process, etc., and achieve the effect of improving recoverability

Inactive Publication Date: 2020-04-10
宁波中乌新材料产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impediment to achieving the desired technical effect is the multi-stage preparation process and the prepared carbon composites have mediocre properties

Method used

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  • Carbon composite material and preparation method thereof
  • Carbon composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The carbon composite material is characterized in that, in proportion, the carbon composite material includes 1 liter of sulfuric acid, 1-30 g of carbon nanotubes, and 0.8-1.1 kg of graphite.

[0028] A method for manufacturing a carbon composite material, comprising the steps of:

[0029] Step 1, mixing 1 liter of sulfuric acid, 1-30 g of carbon nanotubes, and 0.8-1.1 kg of graphite in proportion to obtain a mixture;

[0030] Step 2, anodizing the mixture;

[0031] Step 3. Wash the anodized mixture with water until the pH is between 6-7, and then dry to obtain the dried product. The current density of anodic oxidation is 5-35mA / cm, and the electric power of anodic oxidation is 80-100A h / kg;

[0032] Step 4, heating the dried product in a thermal shock mode at a temperature of 850-1250°C;

[0033] Step 5, cooling the heated product to obtain a carbon composite material.

[0034] The carbon composite material produced by the present invention reduces the compressibil...

Embodiment 2

[0036] The carbon composite material is characterized in that, in proportion, the carbon composite material includes 1 liter of sulfuric acid, 1 gram of carbon nanotubes, and 0.8 kg of graphite.

[0037] A method for manufacturing a carbon composite material, comprising the steps of:

[0038] Step 1, mixing 1 liter of sulfuric acid, 1 gram of carbon nanotubes, and 0.8 kg of graphite in proportion to obtain a mixture;

[0039] Step 2, anodizing the mixture;

[0040] Step 3. Wash the anodized mixture with water until the pH is between 6-7, and then dry to obtain the dried product. The current density of anodic oxidation is 25mA / cm, and the electric power of anodic oxidation is 80A·h / kg ;

[0041] Step 4, heating the dried product in a thermal shock mode at a temperature of 850-1250°C;

[0042] Step 5, cooling the heated product to obtain a carbon composite material.

Embodiment 3

[0044] The carbon composite material is characterized in that, in proportion, the carbon composite material includes 1 liter of sulfuric acid, 30 grams of carbon nanotubes, and 1.1 kg of graphite.

[0045] A method for manufacturing a carbon composite material, comprising the steps of:

[0046] Step 1, mixing 1 liter of sulfuric acid, 30 grams of carbon nanotubes, and 1.1 kg of graphite in proportion to obtain a mixture;

[0047] Step 2, anodizing the mixture;

[0048] Step 3. Wash the anodized mixture with water until the pH is between 6-7, and then dry to obtain the dried product. The current density of anodic oxidation is 25mA / cm, and the electric power of anodic oxidation is 90A·h / kg ;

[0049] Step 4, heating the dried product in a thermal shock mode at a temperature of 850-1250°C;

[0050] Step 5, cooling the heated product to obtain a carbon composite material.

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Abstract

The invention discloses a carbon composite material and a preparation method thereof. The carbon composite material comprises, by proportion, 1 L of sulfuric acid, 1-30 g of carbon nanotubes and 0.8-1.1 kg of graphite. The preparation method of the carbon composite material comprises the following steps: step 1, mixing sulfuric acid, the carbon nanotubes and a graphite phase in proportion to obtain a mixture; step 2, carrying out anodic oxidation on the mixture; step 3, washing the anodized mixture with water until the pH value is 6-7, and then drying to obtain a dried product; step 4, heatingthe dried product at the temperature of 850-1250 DEG C; and step 5, cooling the heated product to obtain the carbon composite material. The recoverability of the prepared carbon composite material is51%-55%, the compressibility of the prepared carbon composite material is 62%-66%, and the ultimate tensile strength of the prepared carbon composite material is 2.9 MP-3. 9 MPa.

Description

technical field [0001] The present invention relates to carbon composite materials and methods for their manufacture. Background technique [0002] For existing carbon composite materials containing graphite and carbon nanotubes, wherein the ratio of carbon nanotubes and expanded graphite is 1:0.1-5 (patent CN105110312, IPC C01B 32 / 158, C01B 32 / 174, C01B32 / 20, B82Y 30 / 00, date of publication: 2 December 2015). [0003] The carbon composite material includes a carbon nanotube layer with a thickness of 0.2 to 500 microns and a graphite layer with a thickness of 1-500 microns placed in sequence. The carbon composite material may also successively comprise a carbon nanotube layer and a polymer film pressed thereon, a transition layer, and a graphite layer. The transition layer is composed of a carbon nanotube layer with a thickness of 0.2 to 500 microns and graphite with a thickness of 0.2 to 100 microns. The thickness of the graphite layer is 1 to 500 microns. What stands i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/168C01B32/21
CPCC01B32/168C01B32/21
Inventor 丁昂尼古拉·卡特尔王东星塞门索夫·尤里
Owner 宁波中乌新材料产业技术研究院有限公司