Method for preparing mesoporous activated carbon fibers

A technology of activated carbon fibers and fibers, which is applied in the field of preparation of mesoporous activated carbon fibers, can solve problems such as uneven product pore distribution, high equipment performance requirements, and complex production processes, and achieve tight integration, lower production costs, and lower activation temperatures. Effect

Inactive Publication Date: 2015-01-07
SICHUAN CHUANGYUE CARBON MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of continuous spinning difficulty, uneven product pore distribution, complex production process, high equipment performance requirements, high production cost and great difficulty in industrialization existing in the preparation method of mesoporous activated carbon fiber, and provide a A kind of preparation method of mesoporous activated carbon fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of mesoporous activated carbon fiber in the present embodiment, it comprises the steps:

[0025] 1) Preparation of impregnating agent: dissolving thermosetting phenolic resin and sodium hydroxide in ethanol to prepare impregnating agent, wherein the consumption of thermosetting phenolic resin is 0.1% of ethanol weight, and the consumption of sodium hydroxide is 0.01mol / L of ethanol;

[0026] 2) Impregnation: immerse the viscose-based oxidized fiber in the impregnating agent prepared in step 1), and immerse at room temperature for 10 hours;

[0027] 3) Squeeze and suction: Squeeze and suck the impregnated raw material fibers to remove excess impregnating agent, and control the loading rate on the raw material fibers to 0.1-10%;

[0028] 4) Curing: Curing the extruded and sucked viscose-based oxidized fiber at a temperature of 100° C. for 10 hours;

[0029] 5) Carbonization activation: place the cured viscose-based oxidized fiber in an inert ...

Embodiment 2

[0032] A kind of preparation method of mesoporous activated carbon fiber in the present embodiment, it comprises the steps:

[0033] 1) Preparation of impregnating agent: dissolving thermosetting phenolic resin and sodium hydroxide in ethanol to prepare impregnating agent, wherein the amount of thermosetting phenolic resin is 10% of the weight of ethanol, and the amount of sodium hydroxide is 1.00mol / L of ethanol;

[0034] 2) Impregnation: immerse the viscose-based oxidized fiber in the impregnating agent prepared in step 1), and immerse at room temperature for 0.1 hour;

[0035] 3) Squeeze and suction: Squeeze and suck the impregnated raw material fibers to remove excess impregnating agent, and control the loading rate on the raw material fibers to 0.1-10%;

[0036] 4) Curing: Curing the extruded and sucked viscose-based oxidized fiber at a temperature of 200° C. for 0.5 hours;

[0037] 5) Carbonization activation: place the cured viscose-based oxidized fiber in an inert atm...

Embodiment 3

[0040] A kind of preparation method of mesoporous activated carbon fiber in the present embodiment, it comprises the steps:

[0041] 1) Preparation of impregnating agent: dissolving thermosetting phenolic resin and sodium hydroxide in ethanol to prepare impregnating agent, wherein the consumption of thermosetting phenolic resin is 5% of ethanol weight, and the consumption of sodium hydroxide is 0.5mol / L of ethanol;

[0042] 2) Impregnation: immerse the viscose-based oxidized fiber in the impregnating agent prepared in step 1), and immerse at room temperature for 5 hours;

[0043] 3) Squeeze and suction: Squeeze and suck the impregnated raw material fibers to remove excess impregnating agent, and control the loading rate on the raw material fibers to 0.1-10%;

[0044] 4) Curing: Curing the extruded and sucked viscose-based oxidized fiber at a temperature of 150° C. for 5 hours;

[0045] 5) Carbonization activation: place the cured viscose-based oxidized fiber in an inert atmos...

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PUM

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Abstract

The invention relates to a method for preparing mesoporous activated carbon fibers, belonging to the technical field of preparation methods of activated carbon fibers, and mainly solving the technical problems of difficulty in continuous spinning, non-uniform pore distribution of the product, complex production process, high requirement on equipment performance, high production cost and large industrial difficulty existing in a conventional method for preparing mesoporous activated carbon fibers. With the adoption of the technical scheme, the method for preparing mesoporous activated carbon fibers comprises the following steps: preparing an impregnant, impregnating, performing extrusion-suction, curing, carbonizing and activating and pickling. The method disclosed by the invention has the advantages of capability of performing continuous spinning, uniform pore distribution of the product, simple production process, low requirement on equipment performance, low production cost and simplicity in industrialization.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of activated carbon fibers, and in particular relates to a preparation method of mesoporous activated carbon fibers. Background technique [0002] Activated carbon fiber is a third-generation carbonaceous adsorption material, which has a large specific surface area and strong absorption and desorption capacity. Its application forms include chopped strands, felt, cloth and other forms, so it has a broader application space. At present, commercially available activated carbon fibers are mainly microporous activated carbon fibers, and their adsorption pore diameters are all concentrated in micropores below 2nm, which limits the application of activated carbon fibers in the field of macromolecular adsorption, especially in liquid phase adsorption, catalyst carriers, Applications in electronics, medical and other fields. Therefore, the R&D and production of mesoporous activated carbon fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12D06M15/41D06M15/55D06M15/37D06M15/423D06M11/38
Inventor 徐青伍孝
Owner SICHUAN CHUANGYUE CARBON MATERIAL
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