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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

AI Technical Summary

Problems solved by technology

However, this program mainly studies the preparation of surfactants, and does not study the graphene conductive paste

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
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of preparation of graphene slurry: take by weight 94.0% deionized water and 1.0% dispersant PEO (polyethylene oxide) in dry and clean mixing tank, stir 30min until PEO dissolves completely, then add wherein Few-layer graphene 5.0%, high-speed stirring for 120min to make it evenly mixed. Then grind with a high-speed emulsifier or a colloid mill, and then use a nano-sand mill with 2.0 mm zirconia beads as the medium, and grind 5 times at 1500 rpm to obtain a uniformly dispersed graphene slurry.

Embodiment 2

[0044] A preparation of graphene slurry: take 91.0% deionized water and 2.0% dispersant PEO (polyethylene oxide) by mass parts in a dry and clean mixing tank, stir for 30min until the PEO is completely dissolved, then add Few-layer graphene 7.0%, high-speed stirring for 120min to make it evenly mixed. Then grind with a high-speed emulsifier or a colloid mill, and then use a nano-sand mill with 2.0 mm zirconia beads as the medium, and grind 5 times at 1500 rpm to obtain a uniformly dispersed graphene slurry.

Embodiment 3

[0046] A preparation of graphene slurry: take 94.0% ethylene glycol diacetate and 1.0% Vilan 108S dispersant by mass parts in a dry and clean mixing tank, stir for 10min, make it mix evenly, and then add 5.0% few-layer graphene was added therein, and stirred at a high speed for 120 minutes to make it evenly mixed. Then grind with a high-speed emulsifier or a colloid mill, and then use a nano-sand mill with 2.0 mm zirconia beads as the medium, and grind 5 times at 1500 rpm 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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