Graphene conductive slurry as well as preparation method and application method of graphene conductive slurry

A technology of conductive paste and application method, applied in conductive coatings, conductive materials dispersed in non-conductive inorganic materials, epoxy resin coatings, etc., can solve problems such as graphene conductive paste research, and achieve a feasible and stable process. Good sex, prevent the effect of overlapping

Inactive Publication Date: 2017-10-27
SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Graphene conductive slurry as well as preparation method and application method of graphene conductive slurry
  • Graphene conductive slurry as well as preparation method and application method of graphene conductive slurry
  • Graphene conductive slurry as well as preparation method and application method of graphene conductive slurry

Examples

Experimental program
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Example Embodiment

[0041] Example 1

[0042] Preparation of a graphene slurry: weigh 94.0% deionized water and 1.0% dispersant PEO (polyethylene oxide) in parts by mass into a dry and clean mixing tank, stir for 30 minutes until the PEO is completely dissolved, and then add to it Less graphene 5.0%, high-speed stirring for 120min to make it evenly mixed. Then it is ground by a high-speed emulsifier or a colloid mill, and then a nano-sand mill, 2.0mm zirconia beads as the medium, and 1500rpm grinding for 5 times to obtain a uniformly dispersed graphene slurry.

Example Embodiment

[0043] Example 2

[0044] Preparation of a graphene slurry: weigh 91.0% deionized water and 2.0% dispersant PEO (polyethylene oxide) into a dry and clean stirring tank, stir for 30 minutes until the PEO is completely dissolved, and then add to it Low-layer graphene 7.0%, high-speed stirring for 120min to make it evenly mixed. Then it is ground by a high-speed emulsifier or a colloid mill, and then a nano-sand mill, 2.0mm zirconia beads as the medium, and 1500rpm grinding for 5 times to obtain a uniformly dispersed graphene slurry.

Example Embodiment

[0045] Example 3

[0046] Preparation of a graphene slurry: weigh 94.0% ethylene glycol diacetate and 1.0% Vilan 108S dispersant into a dry and clean mixing tank according to mass parts, stir for 10 minutes to make it uniform, and then add Add 5.0% of the few layers of graphene and stir at high speed for 120 minutes to make the mixture uniform. Then it is ground by a high-speed emulsifier or a colloid mill, and then a nano-sand mill, 2.0mm zirconia beads as the medium, and 1500rpm grinding for 5 times to obtain a uniformly dispersed graphene slurry.

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Abstract

The invention belongs to the technical field of graphene materials. Graphene conductive slurry is prepared from the following raw materials in parts by weight: 0.5 to 15.0 weight percent of oligegraphene, 0.1 to 0.5 weight percent of a dispersant, 80 to 99.4 weight percent of a diluent and 10 to 40 weight percent of organic resin. According to the graphene conductive slurry disclosed by the invention, by screening the dispersant in the early stage, the graphene can be more easily dispersed in the diluent during a mixing process of graphene powder and the diluent, and an obtained dispersion solution is good in stability; by adding the selected dispersant and using a technology adopted by the invention, stripping of the graphene in the diluent can be promoted; in the graphene conductive slurry, a part of solvent is replaced with a part of resin, so that the solid content of the graphene conductive slurry is increased, the stability of the graphene conductive slurry is increased, re-overlaying of the graphene is prevented, and very good compatibility is also provided for application in the late. The graphene conductive slurry which is good in performance and high in stability can be prepared, the cost is low, the technology is feasible, and the graphene conductive slurry is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of graphene materials, and relates to a method for preparing an easily dispersible graphene conductive paste and an application method thereof. Background technique [0002] Graphene is the thinnest and hardest nano-material known in the world. It is almost completely transparent and only absorbs 2.3% of light; Graphene is also called single-layer graphite, a flat film composed of carbon atoms , peeled off from the graphite material, only one carbon atom thick, is a two-dimensional material formed by a single layer of carbon atoms arranged in a honeycomb lattice. The structure of graphene is very stable, the carbon-carbon bond (carbon-carbon bond) is only The connection between carbon atoms inside graphene is very flexible. When an external force is applied to graphene, the surface of the carbon atoms will bend and deform, so that the carbon atoms do not need to be rearranged to adapt to the external force...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/24C09D4/06C09D4/02H01B1/04H01B1/24
CPCC08K2201/001C08L2201/04C09D4/06C09D5/24C09D163/00H01B1/04H01B1/24C08L71/02C08L7/00C08L3/04
Inventor 文中强慈立杰丁显波王东卫
Owner SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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