Carbon nano fiber paper and preparation method thereof

A technology of carbon nanofiber paper and carbon nanofiber, which is applied in the direction of fiberboard, fiber raw material processing, synthetic cellulose/non-cellulose material pulp/paper, etc., which can solve the influence of electrical conductivity, increase costs, and reduce the performance of carbon nanofibers, etc. problems, to achieve the effect of reducing production costs and high cleanliness

Inactive Publication Date: 2015-04-08
武汉艾特米克超能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

On the one hand, this increases the cost, on the other hand, carbon nanomolecules are prone to polarization, which affects the conductivity, thereby reducing the performance of carbon nanofibers.
At present, there is no suitable method for preparing carbon nanofiber paper in batches without surface pretreatment at home and abroad.

Method used

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  • Carbon nano fiber paper and preparation method thereof
  • Carbon nano fiber paper and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0039] Place the multi-walled carbon nanotubes in isopropanol (IPA, >95%) solvent, the concentration of the carbon nanotube solution is 0.5mg / ml, and use the ultrasonic method to disperse the carbon nanotubes in the solvent, and the ultrasonic power is 300W After 30 minutes, the dispersed solution was homogenized by the stirring action of a high-speed mixer to make the solution uniform as a whole, and then transferred to a filter device for vacuum filtration, with a vacuum pumping rate of 2L / S, vacuum drying, and drying conditions - 0.085MPA, 85°, transfer the carbon nanofiber paper from the substrate, and optionally press it to prepare the carbon nanofiber paper.

example 2

[0041] Place the single-walled carbon nanotubes in isopropanol (IPA, >95%) solvent, the concentration of the carbon nanotube solution is 0.05mg / ml, and use the ultrasonic method to disperse the carbon nanotubes in the solvent, and the ultrasonic power is 300W After 30 minutes, the dispersed solution was homogenized by the stirring action of a high-speed mixer to make the solution uniform as a whole, and then transferred to a filter device for vacuum filtration, with a vacuum pumping rate of 2L / S, vacuum drying, and drying conditions - 0.085MPA, 85°, transfer the carbon nanofiber paper from the substrate, and optionally press it to prepare the carbon nanofiber paper.

example 3

[0043] The multi-walled carbon nanotubes and solid carbon nanofibers were placed in a mixed solvent of isopropanol and deionized water (IPA / DIW, volume ratio 1:1), the concentration of the carbon nanotube solution was 0.05mg / ml, and the ultrasonic method was used Disperse the carbon nanotubes in the solvent, the ultrasonic power is 300W, and the dispersed solution after 30 minutes is homogenized by the stirring action of a high-speed mixer to make the solution uniform as a whole, and then transferred to the filter device for vacuum filtration, vacuum pump The air extraction rate is 2L / S, vacuum drying, drying conditions -0.085MPA, 200°, transfer the carbon nanofiber paper from the substrate, and optionally press it to prepare the carbon nanofiber paper.

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Abstract

The invention discloses carbon nano fiber paper and a preparation method thereof. The carbon nano fiber paper disclosed by the invention is combined by carbon nano fibers by means of the Van der Waals force and the cross linking of the carbon nano fibers, and the carbon nano fibers comprise one or more of multi-wall carbon nanotubes, single-wall carbon nanotubes, solid carbon nano fibers or activated carbon fibers. The preparation process of the carbon nano fiber paper disclosed by the invention comprises the steps of dispersing, filtering, roasting and rolling. No dispersing agent is needed in the preparation process, and the carbon tubes and the carbon fibers need no functionalized treatment. The carbon nano fiber paper prepared in the invention has the advantages of large specific surface area, good electrical conductivity and high air permeability; the materials are recyclable, so that no waste is generated; and since the process is simple, mass production is liable to achieve.

Description

technical field [0001] The invention relates to the technical field of carbon nanomaterials, in particular to a carbon nanofiber paper and a preparation method thereof. Background technique [0002] CNTs, also known as bucky tubes, belong to a one-dimensional quantum material with a special structure (radial dimension of 2-20nm level, axial dimension of micron level, and both ends of the tube are basically sealed), mainly composed of hexagonal The carbon atoms arranged in the shape form several to tens of layers of coaxial tubes. CNTs can be divided into single-wall CNTs and multi-wall CNTs according to the number of graphene sheets. There are three main methods for the preparation of carbon nanotubes: 1. Arc discharge method. Catalyst fillers can be added to the graphite material. Through the method of arc discharge, the temperature of the reaction zone can reach 3000-4000° to prepare carbon nanotubes; 2. , laser evaporation method, under the condition of inert gas protec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/50D21J1/00D21J1/06
Inventor 李贝解明
Owner 武汉艾特米克超能新材料科技有限公司
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