A kind of graphene foam film and its preparation and application

A graphene foam, graphene film technology, applied in graphene, chemical instruments and methods, inorganic chemistry and other directions, can solve the problems of low cost and safe preparation of graphene foam technology to be improved, and achieve convenient and fast preparation process and preparation. Simple method and good mechanical properties
CN106672944BActive Publication Date: 2018-08-14DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2018-08-14

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Abstract

The invention relates to a graphene foam film, and preparation and application thereof. The graphene foam film has a continuous rhombic three-dimensional porous structure. The graphene foam film is prepared by applying direct current to both ends of an obtained graphene film. The application refers to application of the graphene foam film in the aspects of energy storage, flexible electronic sensors, smart clothing, electromagnetic shielding prevention cover layers, heat insulation and noise prevention. According to the invention, the preparation method is simple; the graphene foam film can be quickly prepared at low direct current voltage; large-scale low-cost production can be easily implemented; the cross section of the obtained graphene foam film forms a continuous three-dimensional porous structure; and the graphene foam film has favorable mechanical property, low density, excellent electric conductivity and other properties, and has important practical values in the fields of flexible energy storage, sensing and the like.
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Description

technical field

[0001] The invention belongs to the field of graphene foam and its preparation and application, in particular to a graphene foam film and its preparation and application. Background technique

[0002] Due to its excellent electrical conductivity, thermal conductivity, transparency and mechanical properties, graphene materials have received high attention in recent years in high-tech fields such as microelectronic devices, flexible sensor devices, flexible energy storage devices, smart clothing materials, and aerospace. Researchers have carried out extensive research on the preparation methods and application technologies of graphene. In order to realize the practical application of graphene, it is usually necessary to use chemical and physical means to obtain macroscopic graphene fibers, graphene films, graphene hydrogels, three-dimensional airgel networks, etc., for example: Professor Gao Chao of Zhejiang University passed liquid crystal spinning High-stren...

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
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