A kind of titanium quantum dot doped graphene-based conductive ink and its preparation method and application

Abstract

The invention provides a graphene-based conductive ink doped with titanium quantum dots, comprising the following components in parts by weight: 15-40 parts of graphene dispersion liquid of 5-150 mg / mL, 5-80 mg / mL of titanium quantum dots 40-120 parts of dot dispersion liquid, 5-25 parts of conductive carbon black, 0.5-2.5 parts of polyacrylonitrile-maleic anhydride copolymer, 0.5-2.5 parts of structural stabilizer, 100-500 parts of first dispersant, 2nd dispersion 50 to 200 parts of agent, 5 to 20 parts of peeling resin, and 5 to 10 parts of leveling agent. The graphene conductive film prepared by the titanium quantum dot-doped graphene-based conductive ink of the present invention has considerable flexibility, toughness, hardness and adhesion, can be printed on various substrates, and has the characteristics of high temperature resistance, long service life and the like . The invention also provides a preparation method of the titanium quantum dot doped graphene-based conductive ink and its application in preparing the graphene conductive film.

Description

A kind of titanium quantum dot doped graphene-based conductive ink and its preparation method and application technical field The present invention relates to the technical field of nanomaterials, be specifically related to a kind of titanium quantum dot doped graphene-based conductive ink, The invention also relates to the preparation method of the titanium quantum dot doped graphene-based conductive ink and the method for preparing the graphene conductive film. application on. Background technique Graphene is a kind of hexagonal honeycomb lattice structure formed by carbon atoms through sp2 hybrid orbital and has only one layer. Two-dimensional nanomaterials with the thickness of carbon atoms. The unique structure of graphene endows it with many excellent properties, such as high theoretical specific surface area (2630m 2 / g), ultra-high electron mobility (~200000cm 2 / v.s), high thermal conductivity (5000W / m.K), high Young's modulus (1.0TPa) and high tr...

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Problems solved by technology

[0005] In view of this, the present invention provides a kind of titanium quantum dot doped graphene-based conductive ink, to solve the poor stability of graphene ink existing in the prior art, the thickness of graphene ink printing layer is difficult to control, poor conductivity, The conductive film formed after printing is prone to brittleness, aging, and uneven heating after long-term use.

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