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Graphene ink and method for manufacturing graphene pattern using the same

A technology of graphene and graphene sheets, which is applied in ink, household utensils, conductive pattern formation, etc., and can solve problems such as difficult to exert characteristics, bulky size, and negative effects of derivative products

Inactive Publication Date: 2015-01-21
ENERAGE INC
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  • Application Information

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Problems solved by technology

[0005] However, due to the innate nanostructure of graphene, its packing density is far less than 0.01g / cm3, that is, it is bulky, and it is easy to agglomerate a lot due to van der Waals force. For industrial applications, it is a very difficult problem, not only difficult to play its characteristics, and even cause negative effects of derivative products

Method used

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  • Graphene ink and method for manufacturing graphene pattern using the same
  • Graphene ink and method for manufacturing graphene pattern using the same
  • Graphene ink and method for manufacturing graphene pattern using the same

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Embodiment Construction

[0017] The implementation of the present invention will be described in more detail in conjunction with the drawings and component symbols below, so that those skilled in the art can implement it after studying this specification.

[0018] The graphene ink provided by the present invention includes: a dispersion solution, a polymer binder, and a plurality of graphene sheets, the dispersion solution accounts for more than 99wt% of the graphene ink, and contains at least one solvent, so that the dispersion The surface tension of the solvent is between 35mJ / m2 and 55mJ / m2; the polymer binder is dissolved in the dispersion solution to form a colloidal solution together, and the polymer binder accounts for 0.01-0.5wt% of the graphene ink ; The graphene sheet is fully dispersed in the colloidal solution, and the suspension concentration of the graphene sheet accounts for about 0.1-5wt% of the graphene ink, wherein the viscosity of the graphene ink is less than 100cp, and its surface ...

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Abstract

A graphene ink includes a dispersion solution with a surface tension between 35 and 55 mJ / m2, a polymer binder dissolved in the dispersion solution to form a colloidal solution, and a plurality of graphene sheets dispersed in the colloidal solution with a suspension concentration of 0.1˜5 wt %. The graphene ink has a viscosity less than 100 cp and a surface potential greater than 30 mV or less than −30 mV. The graphene ink is first prepared and then processed by the steps of masking, spraying, solidifying and removing so as to form a graphene pattern by patterning the graphene ink on an electrical insulation substrate.

Description

technical field [0001] The invention relates to a graphene ink and a method for making a circuit by using the graphene ink. Background technique [0002] Conductive ink is currently widely used in spray-coated electronic components or electronic circuits. US Patent No. 7,834,295 discloses a printed igniter device. In this case, a conductive material and a binder are used to prepare a conductive ink, which is then produced by spraying. the device. US Patent No. 7,097,788 discloses a method for preparing conductive ink. This method forms anisotropic conductive particles by grinding, and then adds them into a solvent to prepare conductive ink. Electronic components can be formed without high-temperature hardening. , the conductive ink can be applied to electrochemical sensors. [0003] Single-layer graphite, also known as graphene, is a two-dimensional honeycomb lattice structure in which a single layer of carbon atoms is tightly packed with graphite bonds (sp2), so it is onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/03H05K3/12
CPCC08K3/04C08K2003/045C09D11/52C09D11/03C08K3/042
Inventor 吴以舜谢承佑郑叡骏彭晟书
Owner ENERAGE INC
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