Preparation method of carbon nano-fiber film

A carbon nanofiber and nanofiber technology, applied in the field of materials, can solve problems such as unfavorable reinforcement effect and poor in-plane mechanical strength, and achieve the effects of good flexibility, improved tensile strength and high strength

Active Publication Date: 2014-04-02
XIAN AVIATION BRAKE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the poor in-plane mechanical strength existing in the prior art, which is unfavor

Method used

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  • Preparation method of carbon nano-fiber film
  • Preparation method of carbon nano-fiber film
  • Preparation method of carbon nano-fiber film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The present embodiment implements a kind of preparation method of carbon nanofiber film, and concrete process is:

[0026] Step 1, prepare polyacrylonitrile-N,N dimethylformamide solution. Using polyacrylonitrile as a solute and N,N dimethylformamide as a solvent, mix the two to dissolve polyacrylonitrile in N,N dimethylformamide. Wherein, the mass of polyacrylonitrile in every 100ml of N,N dimethylformamide solvent is 5g. Mix the weighed polyacrylonitrile and N,N dimethylformamide and stir evenly, and let it stand in the atmosphere for 12h. A polyacrylonitrile-N,N dimethylformamide solution was obtained.

[0027] Step 2, spinning.

[0028] The polyacrylonitrile-based nanofiber porous preform was spun by SS-2535DC electrospinning equipment. specifically is:

[0029]Draw 5ml of polyacrylonitrile-N,N dimethylformamide solution into the syringe. The vertical distance between the aluminum plate and the spinneret of the SS-2535DC electrospinning equipment was adjusted ...

example 2

[0039] Example 2: The present embodiment implements a kind of preparation method of carbon nanofiber film, and concrete process is:

[0040] Step 1, prepare polyacrylonitrile-N,N dimethylformamide solution. Using polyacrylonitrile as a solute and N,N dimethylformamide as a solvent, mix the two to dissolve polyacrylonitrile in N,N dimethylformamide. Wherein, the mass of polyacrylonitrile in every 100ml of N,N dimethylformamide solvent is 15g. The weighed polyacrylonitrile and N,N dimethylformamide were mixed and stirred evenly, and the prepared solution was left to stand in the atmosphere for 12 hours. A polyacrylonitrile-N,N dimethylformamide solution was obtained.

[0041] Step 2, spinning

[0042] The polyacrylonitrile-based nanofiber porous preform was spun by SS-2535DC electrospinning equipment. specifically is:

[0043] Draw 10ml of polyacrylonitrile-N,N dimethylformamide solution into the syringe. The vertical distance between the aluminum plate and the spinneret o...

example 3

[0053] Example 3: The present embodiment implements a kind of preparation method of carbon nanofiber film, and concrete process is:

[0054] Step 1, prepare polyacrylonitrile-N,N dimethylformamide solution. Using polyacrylonitrile as a solute and N,N dimethylformamide as a solvent, mix the two to dissolve polyacrylonitrile in N,N dimethylformamide. Wherein, the mass of polyacrylonitrile in every 100ml of N,N dimethylformamide solvent is 30g. The weighed polyacrylonitrile and N,N dimethylformamide were mixed and stirred evenly, and the prepared solution was left to stand in the atmosphere for 12 hours. A polyacrylonitrile-N,N dimethylformamide solution was obtained.

[0055] Step 2, spinning

[0056] The polyacrylonitrile-based nanofiber porous preform was spun by SS-2535DC electrospinning equipment. specifically is:

[0057]Draw 20ml of polyacrylonitrile-N,N dimethylformamide solution into the syringe. The vertical distance between the aluminum plate and the spinneret of...

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Abstract

The invention discloses a preparation method of a carbon nano-fiber film, and particularly discloses a method for preparing a high-strength polyacrylonitrile-based carbon nano-fiber film by using electrostatic spinning-high temperature carbonization in combination with a catalytic chemical vapor deposition process. The method comprises the following steps: preparing a polyacrylonitrile-based carbon nano-fiber porous reinforcement with high flexibility but low strength by using electrostatic spinning and high temperature carbonization; and further filling vapor growth carbon nano-fibers into the polyacrylonitrile-based carbon nano-fiber porous reinforcement by using a chemical vapor deposition technology to obtain the carbon nano-fiber film with high flexibility and high strength. Compared with a polyacrylonitrile-based carbon nano-fiber film prepared by merely using an "electrostatic spinning-high temperature carbonization" technology, the carbon nano-fiber film prepared with the method disclosed by the invention has the advantage that the in-plane tensile strength is increased by 80-120 percent.

Description

technical field [0001] The invention relates to the field of materials, in particular to a method for preparing a carbon nanofiber film Background technique [0002] Carbon nanofiber film refers to a two-dimensional porous material similar to paper composed of a certain length of disordered carbon nanofibers, sometimes called carbon nanofiber paper, such as the journal literature "Zhang Na et al., Carbon nanofiber paper-glass fiber Effect of epoxy composite materials on wind power blades, Journal of Composite Materials, 2013, 90-95"; journal literature "Shafi Ullah Khan et al., Improved interlaminar shear properties of multiscale carbon fiber composites with bucky paper interleaves made from carbon nanofibers, CARBON, 2012, 5265-5277"; patent document "Xiao Hui, a carbon nanofiber paper and its preparation method, publication number: CN103015256A". At this stage, carbon nanofiber paper has been used to improve the interlaminar shear strength of glass fiber / resin composites ...

Claims

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Application Information

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IPC IPC(8): D06M11/65D06M11/74D01F9/22D01D5/00D01D10/02D06M101/40
Inventor 强琪宋强刘海平
Owner XIAN AVIATION BRAKE TECH
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