Graphene radiation material, and preparation method and application thereof

Abstract

The invention provides a graphene radiation material, which comprises more than one layer of graphene radiation film. Each graphene radiation film comprises a support layer, a graphene layer and a bonding layer, which are combined with one another, wherein the graphene layer is positioned between the support layer and the bonding layer, and comprises more than one layer of graphene or graphene composite material with a mono-molecule thickness. The invention also provides a preparation method for the graphene radiation material and the use of the graphene radiation material. The material has a high heat-conducting property; and by the material, the radiation effect of an electronic product can be improved, the temperature of the electronic product can be reduced, the use comfort of a user can be improved, the reliability of the electronic product can be improved, and the service life of the electronic product can be prolonged. The graphene radiation films have remarkable cooling effects; and moreover, an industrial preparation method can be adopted, so that cost is greatly decreased, and automatic production is realized. The graphene radiation material can be widely applied to equipment such as smart phones, tablet personal computers, notebooks and the like with small spaces and high radiation requirements.

Description

technical field [0001] The application of the present invention relates to a graphene heat dissipation material and its preparation method and application, belonging to the technical field of new material application. Background technique [0002] With the rapid development of miniaturization of electronic devices, especially the increasingly dense components on electronic circuit boards, the surface temperature of electronic products is also rising, and the heat management of electronic products has become an important issue in product design. With the emergence of large-screen touch electronic devices, consumer electronics products have also begun a new design direction, and smaller and thinner designs are becoming more and more popular. 2G, 3G mobile phones, tablet computers, e-books, notebook computers, etc. The dense components of such electronic equipment bring about a rapid rise in the internal temperature of the product, and the components also urgently need a relati...

AI Technical Summary

Problems solved by technology

The natural graphite materials and synthetic graphite materials that have been used at present have been improved to some extent. However, due to the limitations of the materials themselves, the plane thermal conductivity of natural graphite materials is lower than 600W / mk, and the thickness is generally higher than 0.05mm, which is difficult to apply in some high-power applications. , Electronic equipment with high heat dissipation requirements, and the size of synthetic graphite has a large limit, it is difficult to apply to electronic equipment with a size exceeding 30cmX30cm

Images