Method for preparing thin-wall foam carbon-carbon nanotube composite material

A technology of carbon nanotubes and composite materials, which is applied in the field of preparation of thin-walled foam carbon-carbon nanotube composite materials, can solve the problems of weak bonding between carbon nanotubes and foam carbon, covering the structural characteristics of carbon nanotubes, and insufficient special properties To achieve the effect of rich structure and function, good shape and strong practicability

Active Publication Date: 2017-07-25
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when preparing foamed carbon-carbon nanotube composite materials, most of them use the finished carbon nanotubes for compounding. Some have the problem of weak bonding between carbon nanotubes and foamed carbon, and some use Carbon nanotubes are embedded

Method used

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  • Method for preparing thin-wall foam carbon-carbon nanotube composite material
  • Method for preparing thin-wall foam carbon-carbon nanotube composite material
  • Method for preparing thin-wall foam carbon-carbon nanotube composite material

Examples

Experimental program
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Example

[0042] Examples 1-21: See the drawings.

[0043] A method for preparing thin-walled foamed carbon-carbon nanotube composite material includes the following steps:

[0044] a. Preparation of thin-walled foamed carbon:

[0045] Prepare a mold. The mold consists of a bottom plug 5, a ring-shaped outer sleeve that is sleeved between the lower section and the upper portion of the bottom plug 5, a slidable cylindrical piston 3 placed inside the ring-shaped outer sleeve 2 and attached to the ring-shaped outer sleeve 2, and a press The weight 1 is formed on the cylindrical piston 3;

[0046] At room temperature, the starch and the mixed acid are mixed uniformly and then filtered by suction (preferably by vacuum suction) to obtain the filter cake 4; the filter cake 4 is placed on the bottom plug 5 of the mold, and the lower part of the annular jacket 2 The upper part of the bottom plug 5 is sleeved, a cylindrical piston 3 is placed on the filter cake 4, and a weight 1 is pressed on the cylind...

Example Embodiment

[0057] Example 22: See the drawings.

[0058] A method for preparing thin-walled foamed carbon-carbon nanotube composite material includes the following steps:

[0059] a. Preparation of thin-walled foamed carbon:

[0060] Prepare a mold. The mold consists of a bottom plug 5, a ring-shaped outer sleeve that is sleeved between the lower section and the upper portion of the bottom plug 5, a slidable cylindrical piston 3 placed inside the ring-shaped outer sleeve 2 and attached to the ring-shaped outer sleeve 2, and a press The weight 1 is formed on the cylindrical piston 3;

[0061] At room temperature, the starch and the mixed acid are mixed uniformly and then filtered by suction (preferably by vacuum suction) to obtain the filter cake 4; the filter cake 4 is placed on the bottom plug 5 of the mold, and the lower part of the annular jacket 2 The upper part of the bottom plug 5 is sleeved, a cylindrical piston 3 is placed on the filter cake 4, and a weight 1 is pressed on the cylindric...

Example Embodiment

[0069] Example 23: See the drawings.

[0070] A method for preparing thin-walled foamed carbon-carbon nanotube composite material includes the following steps:

[0071] a. Preparation of thin-walled foamed carbon:

[0072] Prepare a mold. The mold consists of a bottom plug 5, a ring-shaped outer sleeve that is sleeved between the lower section and the upper portion of the bottom plug 5, a slidable cylindrical piston 3 placed inside the ring-shaped outer sleeve 2 and attached to the ring-shaped outer sleeve 2, and a press The weight 1 is formed on the cylindrical piston 3;

[0073] At room temperature, the starch and the mixed acid are mixed uniformly and then filtered by suction (preferably by vacuum suction) to obtain the filter cake 4; the filter cake 4 is placed on the bottom plug 5 of the mold, and the lower part of the annular jacket 2 The upper part of the bottom plug 5 is sleeved, a cylindrical piston 3 is placed on the filter cake 4, and a weight 1 is pressed on the cylindric...

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Abstract

The invention discloses a method for preparing a thin-wall foam carbon-carbon nanotube composite material, which is characterized by comprising the following steps of using a mould consisting of a bottom plug, an annular housing, a slidable piston disposed inside the annular housing, and a heavy object pressed against the piston; evenly mixing starch and mixed acid and extracting and filtering an obtained mixture to obtain a filter cake; placing the filter cake on the bottom plug; connecting the annular housing with the bottom plug in a sleeving manner; placing the piston on the filter cake and pressing the heavy object on the piston, and placing the same in an oven, increasing the temperature to 150 DEG C and maintaining the temperature for 1-3 h; taking out the filter cake, i.e., thin-wall foam carbon to cut into slices to be dipped in a nickel salt-containing ethanol solution, and then taking out for drying to prepare thin-wall foam carbon slices loaded with a catalyst; placing the slices into inner flame of an alcohol lamp for burning, then placing the same in a sulfuric acid solution for soaking, and washing with distilled water to be neutral and drying so as to obtain the thin-wall foam carbon-carbon nanotube composite material. The obtained composite material is securely composited, has rich hole structures, and can be widely used as an electrode material, a catalyst carrier, an electromagnetic shielding material and the like.

Description

technical field [0001] The invention belongs to the preparation of carbon-carbon composite materials, and relates to a preparation method of thin-wall foam carbon-carbon nanotube composite materials. The thin-walled foam carbon-carbon nanotube composite material prepared by the invention is suitable for the fields of electrode materials, catalyst carriers, electromagnetic shielding materials and the like. Background technique [0002] Foamed carbon material is a new type of three-dimensional sponge-like carbonaceous material, which has the characteristics of low density, high temperature resistance, corrosion resistance, and oxidation resistance. It can be made into materials with high thermal conductivity or thermal insulation performance according to needs. The development of foamed carbon materials began in the late 1960s. Since the 1990s, the U.S. Air Force Scientific Research Laboratory, Oak Ridge National Laboratory, the U.S. Navy and the National Aeronautics and Spac...

Claims

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Application Information

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IPC IPC(8): C01B32/05C01B32/162
CPCC01P2004/03C01P2006/12C01P2006/16C01P2006/40C01P2006/42
Inventor 雷洪
Owner SOUTHWEAT UNIV OF SCI & TECH
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