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Activated carbon fibrous composite and preparation method thereof

A technology of activated carbon fiber and activated carbon fiber felt, which is applied in the field of activated carbon fiber composite materials and its preparation, can solve the problems of difficult sewing and molding, low mechanical strength, and restrictions on the wide application of new high-efficiency materials, and achieve improved mechanical strength and good processing and molding The effect of the performance

Inactive Publication Date: 2009-08-26
霍伟志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Activated carbon fiber products can be in various structural forms such as activated carbon fiber, activated carbon fiber felt or activated carbon fiber cloth. Their manufacturing method is to carbonize and activate the relevant raw materials, which makes the mechanical strength of the above various types of activated carbon fiber products very low. Difficult to sew it into shape to use
This shortcoming is common, which greatly limits the wide application of this new type of high-efficiency material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The acrylic staple fiber raw material with a specification of 3.0dtex (dtex)*55mm is used. The raw material must be clean and pollution-free. The fiber raw material is fed into the opening equipment for loosening, and the fiber after opening is sent to the carding machine for carding. After the uniform fiber felt, it enters the web-laying machine, passes through the web-laying machine and needle punching machine, and weaves it into a width of 1m, a thickness of about 3mm, and a weight of 300g (that is, 300g / m 2 ) continuous and uniform acrylic fiber felt, and automatically rolled into a cylindrical semi-finished product for use.

[0022] Repeat the above work to make another continuous and uniform acrylic fiber mat with a width of 1m, a thickness of about 3mm, and a grammage of 300g.

[0023] Take a roll of activated carbon fiber felt with a width of 1m, a thickness of 4mm, and a weight of 300g, and two rolls of acrylic fiber felt with a width of 1m, a thickness of 3mm,...

Embodiment 2

[0025] The polyester staple fiber raw material with a specification of 2.2dtex (dtex)*51mm is used. The raw material must be clean and pollution-free. The fiber raw material is fed to the opening equipment for opening, and the fiber after opening is sent to the carding machine for carding, and the carding machine carding out After the uniform fiber felt, it enters the web-laying machine, passes through the web-laying machine and the needle punching machine, and weaves it into a width of 1m, a thickness of 2mm, and a weight of 200g (that is, 200g / m 2 ) continuous and uniform polyester fiber felt, and automatically rolled into a cylindrical semi-finished product for use.

[0026] Repeat the above work to make another continuous and uniform polyester fiber mat with a width of 1m, a thickness of 2mm, and a gram weight of 200g.

[0027] Take a roll of activated carbon fiber felt with a width of 1m, a thickness of 5mm, and a weight of 500g, and two rolls of polyester fiber felt with...

Embodiment 3

[0029] The aramid staple fiber raw material with a specification of 2.7dtex*45mm is used. The raw material should be clean and pollution-free. The fiber raw material is fed into the opening equipment for opening, and the fiber after opening is sent to the carding machine for carding, and the carding machine cards out uniform fibers. After felting, it enters the web-laying machine, passes through the web-laying machine and needle punching machine, and weaves into a continuous and uniform aramid fiber mat with a width of 1.2m, a thickness of 1.8mm, and a weight of 150g, and is automatically rolled into a cylindrical shape. Semi-finished products are spare.

[0030] Repeat the above work to make another continuous and uniform aramid fiber mat with a width of 1.2m, a thickness of 1.8mm, and a grammage of 150g.

[0031] Take two rolls of activated carbon fiber felt with a width of 1.2m, a thickness of 2.5mm, and a weight of 300g, and two rolls of aramid fiber felt with a width of 1...

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Abstract

The invention discloses an activated carbon fibrous composite which is prepared by collectively weaving of an activated carbon fibrous layer and fiber felts at the upper surface and lower surface of the activated carbon fibrous layer; wherein, the weight percentage of the activated carbon fibrous layer accounts for 15-95% of the activated carbon fibrous composite. The invention also discloses the preparation method of the activated carbon fibrous composite, comprising the following steps: (1) quantifiable chemical fiber or cotton fiber are selected to prepare continuous and uniform fiber felts through opening, carding, lapping and pinpricking; (2) quantifiable activated carbon fiber is taken as an intermediate layer, the manufactured fiber felts are laid on the upper surface and lower surface of the activated carbon fibrous layer and then are collectively woven into a whole, thus the activated carbon fibrous composite is prepared. The activated carbon fibrous composite of the invention not only maintains the fine characteristics of the activated carbon fiber but also greatly improves the mechanical strength of products and has fine processing and shaping property, thus being very conducive to popularization and application of the activated carbon fiber in numerous fields.

Description

technical field [0001] The invention relates to an activated carbon fiber material, in particular to an activated carbon fiber composite material and a preparation method thereof. Background technique [0002] Activated carbon fiber is a new generation of activated carbon products successfully developed in the United States, Japan and other countries in recent years. Compared with traditional granular activated carbon, it has obvious advantages, mainly in the fast adsorption and analysis speed (small internal and external diffusion resistance), and can be processed twice. After processing, it becomes felt-like and cloth-like activated carbon fiber products in different shapes, which is convenient for application and operation. It can be widely used in the chemical industry, environmental protection, medical adsorption materials, etc., and has made great progress in recent years, such as the recovery of organic solvents and organic waste gas treatment in the chemical industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/46B32B9/04
Inventor 霍伟志
Owner 霍伟志