Epoxy polyphenyl ether proton membrane and preparation method thereof

An epoxy polyphenylene ether, proton membrane technology, applied in the field of proton membrane, can solve the problems of poor membrane mechanical properties, low proton conductivity, high methanol permeability, etc., to promote the formation of thin films, improve surface activity, and improve solubility Effect

Inactive Publication Date: 2018-09-04
温州市赢创新材料技术有限公司
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high price ($800 / m2), low working temperature (<100°C), high methanol permeability and environmental problems caused by fluorine-containing materials limit its commercial application.
Therefore, it is an important research direction of PEMFC to find new proton exchange membrane materials with low price, high conductivity in a wide temperature range, excellent thermal and chemical stability; however, the current proton membrane has low proton conductivity and poor mechanical properties of the membrane. and other defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of epoxy polyphenylene ether proton membrane, it is made up of the raw material of following weight part:

[0023] Glycidyl alcohol 7, methyl methacrylate 10, polyphenylene ether 70, 27% caprolactam aqueous solution 10, doped carbon nanotubes 3-4, triethylamine 1, lithium methoxide 0.01.

[0024] Described doped carbon nanotube is made up of the raw material of following weight part:

[0025] 1,2-dimethylimidazole 1, carbon nanotube 30, calcium stearate 2, benzyltriphenylphosphine chloride 0.7.

[0026] The preparation method of described doped carbon nanotubes, comprises the following steps:

[0027] (1) Take carbon nanotubes, add them to 96% nitric acid solution that is 25 times its weight, stir for 3 hours, filter, wash the precipitate with water, and dry it under vacuum at 50°C for 1 hour to obtain activated carbon nanotubes;

[0028] (2) Take benzyltriphenylphosphine chloride, add it to deionized water 20 times its weight, stir evenly, add the above-mentio...

Embodiment 2

[0036] A kind of epoxy polyphenylene ether proton membrane, it is made up of the raw material of following weight part:

[0037] Glycidol 9, methyl methacrylate 14, polyphenylene ether 80, 30% caprolactam aqueous solution 12, doped carbon nanotubes 3-4, triethylamine 3, lithium methoxide 0.02.

[0038] Described doped carbon nanotube is made up of the raw material of following weight part:

[0039] 1,2-dimethylimidazole2, carbon nanotubes40, calcium stearate3, benzyltriphenylphosphine chloride1.

[0040] The preparation method of described doped carbon nanotubes, comprises the following steps:

[0041] (1) Take carbon nanotubes, add them to 97% nitric acid solution that is 30 times its weight, stir for 4 hours, filter, wash the precipitate with water, and dry it under vacuum at 55°C for 2 hours to obtain activated carbon nanotubes;

[0042] (2) Take benzyltriphenylphosphine chloride, add it to 35 times its weight in deionized water, stir evenly, add the above-mentioned activ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an epoxy polyphenyl ether proton membrane. The proton membrane comprises the following raw materials in parts by weight: 7 to 9 parts of glycidol, 10 to 14 parts of methyl methacrylate, 70 to 80 parts of polyphenyl ether, 10 to 12 parts of 27 to 30% caprolactam water solution, 3 to 4 parts of doped carbon nanotube, 1 to 3 parts of triethylamine, 0.01 to 0.02 part of lithiummethoxide. The proton membrane takes the glycidol and methyl methacrylate as raw materials, obtains the carbon nanotube modified polyphenyl ether subjected to epoxidation treatment under the catalytic action of lithium methoxide, then the carbon nanotube modified polyphenyl ether is mixed with caprolactam, epoxy is subjected to ring opening under the catalytic action of triethylamine, the formation of the membrane is effectively promoted, meanwhile the dissolving property of polyphenyl ether in dimethyl formamide is improved, the dissolving rate is increased, the material utilization is improved, and the thickness and comprehensive quality of the proton membrane are improved.

Description

technical field [0001] The invention belongs to the field of proton membranes, and in particular relates to an epoxy polyphenylene ether proton membrane and a preparation method thereof. Background technique [0002] The proton exchange membrane is the core component in PEMFC, which determines the performance of the fuel cell. It is not only a diaphragm material, but also can be used as a proton carrier to complete the transfer of protons. At present, the perfluorosulfonic acid Nafion membrane produced by DuPont of the United States is widely used. This type of perfluorosulfonic acid membrane has the advantages of good proton conductivity, strong corrosion resistance, and long service life. However, the high price ($800 / m2), low working temperature (<100°C), high methanol permeability, and environmental problems caused by fluorine-containing materials limit its commercial application. Therefore, it is an important research direction of PEMFC to find new proton exchange ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1044H01M8/1069
CPCH01M8/1044H01M8/1069Y02E60/50
Inventor 周志强
Owner 温州市赢创新材料技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap