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Polyphenyl ether graphene proton membrane and preparation method thereof

A graphene and polyphenylene ether technology, applied in the field of proton membranes, can solve problems such as large gaps, and achieve the effects of improving quality, improving proton conductivity, and improving mechanical stability

Inactive Publication Date: 2019-05-21
朱雪梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of sulfonated polyphenylene ether has a relatively large gap compared with perfluorosulfonic acid Nafion membrane.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0023] Hexyl bromide 4, polyphenylene ether 120, benzotriazole modified graphene 13, 2-mercaptobenzimidazole 1, sucrose acetate isobutyrate 0.2, molybdenum boride 2, dibutyltin dilaurate 1, dispersion Agent 2, ricinoleic acid 4.

[0024] The dispersant is polysorbate 80.

[0025] The preparation method of described benzotriazole modified graphene comprises the following steps:

[0026] Take graphene oxide, add it to isopropanol which is 8 times its weight, raise the temperature to 670°C, add triethylamine, heat and stir for 13 hours, filter, wash the precipitate with water, and dry at room temperature to obtain aminated graphene;

[0027] Take aminated graphene, add it to dimethylformamide 20 times its weight, ultrasonically disperse it for 2 hours, send it to a constant temperature water bath at 60°C, add benzotriazole, keep stirring for 20 hours, and dis...

Embodiment 2

[0037] A kind of polyphenylene ether graphene proton film, it is made up of the raw material of following weight part:

[0038] Hexyl bromide 2, polyphenylene ether 100, benzotriazole modified graphene 10, 2-mercaptobenzimidazole 0.6, sucrose acetate isobutyrate 0.1, molybdenum boride 1, dibutyltin dilaurate 0.5, dispersion Agent 1-2, ricinoleic acid 3.

[0039] The dispersant is polysorbate 80.

[0040] The preparation method of described benzotriazole modified graphene comprises the following steps:

[0041] Take graphene oxide, add it to isopropanol which is 6 times its weight, increase the temperature to 60°C, add triethylamine, heat and stir for 10 hours, filter, wash the precipitate with water, and dry at room temperature to obtain aminated graphene;

[0042] Take aminated graphene, add it to dimethylformamide whose weight is 16-20 times, ultrasonically disperse for 1 hour, send it to a constant temperature water bath at 55°C, add benzotriazole, keep stirring for 16 ho...

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PUM

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Abstract

The invention discloses a polyphenyl ether graphene proton membrane. The polyphenyl ether graphene proton membrane consists of the following raw materials in parts by weight: 2 to 4 parts of bromohexane, 100 to 120 parts of polyphenyl ether, 10 to 13 parts of benzotriazole modified graphene, 0.6 to 1 part of 2-mercapto benzimidazole, 0.1 to 0.2 part of sucrose acetate isobutyrate, 1 to 2 parts ofmolybdenum boride, 0.5 to 1 part of dibutyltin dilaurate, 1 to 2 parts of a dispersant and 3 to 4 parts of ricinoleic acid. The dispersing compatibility between the graphene and the polyphenyl ether is realized, so that the mechanical stability of finished products is improved; and through benzotriazole modification, the proton conductivity of the proton membrane can be improved and the quality ofthe finished products can be improved.

Description

technical field [0001] The invention belongs to the field of proton membranes, and in particular relates to a polyphenylene ether graphene proton membrane and a preparation method thereof. Background technique [0002] Polyphenylene oxide (PPO) is a widely used thermoplastic material, with good mechanical properties and water resistance, low shrinkage, non-toxic, low density, especially no strong polar groups in the structure of PPO, stable electrical properties, It can maintain good electrical properties in a wide range of temperature, humidity and frequency, and the molecular structure of PPO is simple, which can be modified according to different requirements. Sulfonated polyphenylene ether (SPPO) has excellent electrochemical properties. It is used in ion exchange membranes and voltage-charged filter membranes, and SPPO has good thermal stability, so SPPO is considered to be a better proton conductive material and can be used in fuel cells. However, the conductivity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08K13/06C08K9/04C08K3/04C08K5/378C08K3/38C08K5/09C08J5/18C08G65/48
Inventor 不公告发明人
Owner 朱雪梅
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