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A kind of preparation method of sulfonated polyether ether ketone/sulfonated graphene oxide composite proton exchange membrane

A technology of sulfonated polyether ether ketone and proton exchange membrane, which is applied in the field of composite materials, can solve the problems of membrane proton conductivity and low Coulombic efficiency, improve thermal stability and mechanical properties, improve service life, and increase service life Effect

Inactive Publication Date: 2021-03-16
ANHUI NORMAL UNIV
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  • Application Information

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Problems solved by technology

However, most of the methods for preparing composite membrane materials by modifying graphene at present are mostly mechanical blending methods, so that the two are mixed and cast in a certain ratio, and the properties of the prepared membrane materials will be different due to the combination of material molecules. Different degrees of defects appear, such as membrane proton conductivity, low Coulombic efficiency

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  • A kind of preparation method of sulfonated polyether ether ketone/sulfonated graphene oxide composite proton exchange membrane
  • A kind of preparation method of sulfonated polyether ether ketone/sulfonated graphene oxide composite proton exchange membrane
  • A kind of preparation method of sulfonated polyether ether ketone/sulfonated graphene oxide composite proton exchange membrane

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Embodiment Construction

[0019] In order to make the objects, technical solutions, and advantages of the present invention, the present invention will be further described in detail below with reference to the specific embodiments.

[0020] In the embodiment of the present invention, a method for preparing a sulfonated polyether ether ketone / sulfonated oxide insertion proton exchange membrane is provided, and the sulfonated polyether ether ketone and sulfonated oxide graphene are compounded by chemical bonds. Proton exchange membrane. The preparation steps are as follows:

[0021] 1) Preparation of sulfonated oxide elongol containing alkynyl group (SGO-C≡C) in a pot method;

[0022] 2) Preparation of sulfonated polyether ether ketones with azide group (SPEEK-CH) by using a chloromethylated reaction and azitridation reaction 2 N 3 );

[0023] 3) Preparation of sulfonated polyether ether ketone (SPEEK-SGO) having sulfonated oxide elut eluting (SPEEK-SGO) is prepared by cocyntallogenic reaction (CuAAc) bet...

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Abstract

The invention discloses a preparation method of a novel sulfonated polyetheretherketone / sulfonated graphene oxide composite proton exchange membrane, and relates to the field of composite materials. SGO-C-triple bond-C is prepared; polyetheretherketone is dissilved in concentrated sulfuric acid to prepare sulfonated polyetheretherketone; SPEEK-CH2N3 is prepared through a chloromethylation reactionand an azidation reaction; SPEEK-SGO is prepared by a click chemical reaction of alkyne and azide under the catalysis of CuBr; and the SPEEK-SGO composite membrane is prepared by a solution casting blending phase transformation process in order to achieve the preparation and modification of the sulfonated polyetheretherketone membrane. The composite proton exchange membrane improves the proton conductivity, the coulombic efficiency and the power density of polymer membranes in fuel cells, and can be applied to the field of chemical industry.

Description

Technical field [0001] The present invention relates to the field of composite technology, particularly a method for preparing a sulfonated polyether ether ketone / sulfonated oxide inkylene compound proton exchange membrane. Background technique [0002] At present, the proton exchange membrane is an important component of the fuel cell, the proton conductivity, water absorption performance of the fuel cell membrane, and the suction performance of the entire fuel cell acts as a core component of the fuel cell - the proton of the fuel cell Exchange film causes the industry and the extensive attention and innovation of the masters. Due to the excellent performance and relatively low price of the sulfonated polyether ether ketone film, the modified sulfonated polyether ether ketone film is an important position in the use of commercial composite membranes. Guo Qiang reported "The aminobenzene sulfonate oxide oxide-donated polyether ether ketone / epoxy semi-interoperability network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/22C08L61/16C08K9/00C08K3/04H01M8/1072H01M8/0202
CPCC08J5/2256C08J2361/16C08K9/00C08K3/042H01M8/0202H01M8/1072Y02E60/50
Inventor 宇海银孙飞顾家山
Owner ANHUI NORMAL UNIV