Keratin fuel battery proton exchange membrane and preparation method

A technology of proton exchange membrane and fuel cell, which is applied to fuel cell parts, battery pack parts, circuits, etc., can solve the problems of high cost, environmental pollution, and few sources of materials, and achieve stable quality, low cost, Source Rich Effects

Inactive Publication Date: 2015-06-03
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defects of high cost, few sources of materials and pollution to the environment in current proton exchange membranes, the present invention provides a proton exchange membrane for keratin fuel cells. As the main material, keratin is rich in sources, low in cost, easy to biodegrade, does not pollute the environment, and is specially treated to make a proton exchange membrane, which has good proton conductivity and good mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1) Swelling: Add 60 parts by weight of keratin, 20 parts by weight of sodium bisulfite, and 100 parts by weight of distilled water into the reaction kettle, stir at a speed of 100 r / min, heat up to 50°C, and swell for 2 hours;

[0032] 2) Reduction: Add 5 parts by weight of mercaptoethanol to the keratin swollen in step 1), keep the stirring speed constant, lower the temperature to 35°C, and carry out the reduction reaction for 1 hour;

[0033] 3) Oxidation: Add 5 parts by weight of peracetic acid to the oxidized keratin solution obtained in step 2), keep the stirring speed constant and the temperature constant, carry out the oxidation reaction for 1 hour, and then carry out distillation to obtain the treated keratin protein;

[0034] 4) Mold making: Mix the keratin obtained in step 3) with 20 parts by weight of sulfonated polycarbonate, 10 parts by weight of phosphotungstic acid, and 5 parts by weight of glycerol in a high-speed mixer, and use a twin-screw extruder to ...

Embodiment 2

[0036] 1) Swelling: Add 70 parts by weight of keratin, 30 parts by weight of sodium bisulfite, and 150 parts by weight of distilled water into the reaction kettle, stir at a speed of 150 r / min, heat up to 70 ° C, and swell for 3 hours;

[0037] 2) Reduction: Add 10 parts by weight of sodium sulfide to the keratin swollen in step 1), keep the stirring speed constant, lower the temperature to 40°C, and carry out the reduction reaction for 2 hours;

[0038] 3) Oxidation: Add 10 parts by weight of hydrogen peroxide to the oxidized keratin solution obtained in step 2), keep the stirring speed and temperature constant, carry out the oxidation reaction for 1.5 hours, and then distill to obtain the treated keratin ;

[0039] 4) Mold making: Mix the keratin obtained in step 3) with 30 parts by weight of polyvinyl alcohol, 20 parts by weight of silicotungstic acid, and 10 parts by weight of glycerol in a high-mixer, and extrude by twin-screw , and a proton exchange membrane with a thi...

Embodiment 3

[0041] 1) Swelling: Add 65 parts by weight of keratin, 25 parts by weight of sodium bisulfite, and 125 parts by weight of distilled water into the reactor, stir at a speed of 125 r / min, heat up to 55°C, and swell for 2.5 hours;

[0042] 2) Reduction: Add 8 parts by weight of potassium sulfide to the keratin swollen in step 1), keep the stirring speed constant, lower the temperature to 35°C, and carry out the reduction reaction for 1.5 hours;

[0043] 3) Oxidation: Add 7 parts by weight of sodium peroxide to the oxidized keratin solution obtained in step 2), keep the stirring speed constant and the temperature constant, carry out the oxidation reaction for 1 hour, and then distill to obtain the treated keratin protein;

[0044] 4) Mold making: Mix the keratin obtained in step 3) with 25 parts by weight of sulfonated polyimide, 15 parts by weight of zirconium phosphate, and 8 parts by weight of glycerol in a high-mixer, using double The proton exchange membrane with a thickness...

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Abstract

The invention discloses a keratin fuel battery proton exchange membrane and a preparation method. Biological keratin which is wide in resource, low in cost, recyclable and environment-friendly is adopted as a raw material for preparing the proton exchange membrane, and the proton exchange membrane which is rich in resource, low in cost, easy in biological degradation, free of environment pollution, good in proton conductivity and good in mechanical property can be provided by using swelling, reduction and oxidation methods, and the preparation method is applied to large-scale industrial production, stable in quality and applicable to popularization and application of fuel batteries.

Description

technical field [0001] The invention relates to the field of fuel cell proton exchange membranes, in particular to a keratin fuel cell proton exchange membrane and a preparation method thereof. Background technique [0002] The proton exchange membrane is one of the key components in the proton exchange membrane fuel cell (PEMFC). The effect of conduction protons on electronic insulation. Most of the proton exchange membranes put into commercial production and application today are polymer proton exchange membranes containing fluorine. This type of proton exchange membrane has good proton conductivity and mechanical properties, but it also has high production costs and complicated production processes. Not resistant to high temperature, short service life, serious environmental pollution and other important defects. With the massive development and widespread use of fuel cells in the future, the amount of proton exchange membranes will also increase significantly, but its ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01M8/02H01M2/16
CPCH01M8/02Y02P70/50Y02E60/50
Inventor陈庆李兴文
OwnerCHENDU NEW KELI CHEM SCI CO LTD