{0><}0{>Low-temperature alkaline fuel cell anion exchange membrane and preparation method thereof

An anion exchange membrane and fuel cell technology, which is applied in the field of low temperature alkaline fuel cell anion exchange membrane and its preparation, can solve problems such as affecting raw material film-forming materials, and achieve the effect of excellent mechanical properties and thermal stability.

Active Publication Date: 2016-09-28
河南荣盛包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of modifying first and then forming a film has a certain deficiency in mechanical and practical properties due to the modification of the polymer matrix solution, which affects the film-forming material of the raw material to a large extent.

Method used

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  • {0&gt;&lt;}0{&gt;Low-temperature alkaline fuel cell anion exchange membrane and preparation method thereof
  • {0&gt;&lt;}0{&gt;Low-temperature alkaline fuel cell anion exchange membrane and preparation method thereof
  • {0&gt;&lt;}0{&gt;Low-temperature alkaline fuel cell anion exchange membrane and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0060] A certain amount of chitosan (deacetylation degree 95%, Qingdao Honghai Biotechnology Co., Ltd.) was dissolved in 2% acetic acid solution, and the concentration of chitosan in the acetic acid solution was 0.02g / mL. Cast into a plastic petri dish and dry in the shade naturally to form a film;

[0061] Remove the film, soak it in 4% NaOH solution for 1 min, wash it with water and dry it naturally to obtain the CTS base film, which is colorless and transparent;

[0062] The RCD dye was prepared into a dyeing solution with a concentration of 10g / L, the CTS base film was immersed in it at a liquor ratio of 1:50, and the container containing the dyed sample was placed in an oscillating room temperature dyeing machine (Shanghai Ruike Printing and Dyeing Technology Co., Ltd. company, China), the temperature was raised to 80°C, and the dyeing was kept for 2 hours;

[0063] After the staining is completed, take out the membrane, soap it with 5g / L soap flakes at 40°C, then rinse ...

Embodiment 2

[0079] A certain amount of chitosan (95% degree of deacetylation, Qingdao Honghai Biotechnology Co., Ltd.) was dissolved in 1.5% acetic acid solution, and the concentration of chitosan in the acetic acid solution was 0.01g / mL. Cast into a plastic petri dish, dry in the shade naturally to form a film, the thickness of the film is 30 μm;

[0080] Remove the film, soak it in 3.5% NaOH solution for 40s, wash it with water and dry it naturally to obtain the CTS base film, which is colorless and transparent;

[0081] The RCD dye was prepared into a dyeing solution with a concentration of 8g / L, the CTS base film was immersed in it at a liquor ratio of 1:30, and the container containing the dyed sample was placed in an oscillating room temperature dyeing machine (Shanghai Ruike Printing and Dyeing Technology Co., Ltd. company, China), the temperature was raised to 70°C, and the dyeing was kept for 5 hours;

[0082] After the dyeing is completed, take out the membrane, soap it with 4....

Embodiment 3

[0089] A certain amount of chitosan (deacetylation degree 95%, Qingdao Honghai Biotechnology Co., Ltd.) was dissolved in 2.5% acetic acid solution, and the concentration of chitosan in the acetic acid solution was 0.03g / mL. Cast into a plastic petri dish, dry in the shade naturally to form a film, the thickness of the film is 120μm;

[0090] Remove the film, soak it in 4.5% NaOH solution for 80s, wash it with water and dry it naturally to obtain the CTS base film, which is colorless and transparent;

[0091] The RCD dye was prepared into a dyeing solution with a concentration of 15g / L, the CTS base film was immersed in it at a liquor ratio of 1:80, and the container containing the dyed sample was placed in an oscillating room temperature dyeing machine (Shanghai Ruike Printing and Dyeing Technology Co., Ltd. company, China), the temperature was raised to 75°C, and the dyeing was kept for 5 hours;

[0092] After the dyeing is completed, take out the membrane, soap it with 5.5g...

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Abstract

{0><}0{>The invention relates to the field of preparation of cell ion exchange membranes and particularly relates to a low-temperature alkaline fuel cell anion exchange membrane and a preparation method thereof. <0}{0><}0{>The preparation method comprises the following steps: preparing a high molecular polymer into a membrane; immerging the membrane into staining solution containing a quaternary ammonium salt cation reactive dye, thereby obtaining a dyed membrane; and soaping the dyed membrane, washing the membrane with water and drying the membrane; performing aldolization on the dried membrane with multi-aldehyde group, wherein the high molecular polymer is any one of chitosan and polyvinyl alcohol. <0}{0><}0{>According to the method, a dye dyeing technology is introduced into the preparation method of the fuel cell alkaline membrane; the chitosan or polyvinyl alcohol is selected as a substrate, and the cation reactive dye serves as a load body, cation groups are introduced onto a macromolecule main chain under a relatively mild reaction condition, so that OH- conduction is effectively performed; then <0}{0><}0{>aldolization is performed, so that the finally prepared membrane is excellent in conductivity, mechanical property and thermostability.

Description

technical field [0001] The invention relates to the field of battery ion-exchange membrane preparation, in particular to a low-temperature alkaline fuel cell anion-exchange membrane and a preparation method thereof. Background technique [0002] At present, the production of alkaline anion membranes for fuel cells mostly adopts the methods of blending and then film formation, first film formation and then modification, and first modification and then film formation. Although the blending and film formation method has certain advantages in the conductivity of the film, However, since the conductive component is difficult to achieve long-term residence in the film, there are certain problems in its durability. At the same time, too many components rich in hydrophilic groups will also cause serious phase separation and excessive water content. High, leading to the problem of the decline of the mechanical properties of the membrane. Although cross-linking can solve some problems...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L5/08C08L29/04
CPCC08J7/12C08J2305/08C08J2329/04
Inventor 周天池朱泳兴林丽娟黄美玲
Owner 河南荣盛包装材料有限公司
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