A kind of carbon conductive paste and preparation method thereof

A technology of conductive paste and resistance, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problem of high square resistance of carbon conductive paste, power rise of conductive film, and power attenuation and other issues, to achieve the effect of low cost, high density, and suppression of stress changes

Active Publication Date: 2021-10-08
唐山烯彤科技有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a preparation method of carbon conductive paste, which solves the problems of high square resistance, poor adhesion, power rise of conductive film after heating, and power attenuation after long-term use in the prior art.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of carbon conductive paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A. According to the following formula of carbon conductive paste, weigh each component for later use: 500 parts of graphene oxide aqueous solution, 40 parts of mesophase carbon microspheres, 10 parts of carbon nanotubes, 5 parts of carbon black, 25 parts of strontium titanate, 10 parts of DP460NS epoxy resin glue, 3 parts of 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 850 parts of ethanol aqueous solution with a volume fraction of 70%;

[0030] B. Washing, stirring, and crushing mesophase carbon microspheres, carbon nanotubes, carbon black, and strontium titanate with ethanol aqueous solution with a volume fraction of 70% at a mass fraction ratio of 1:10 to obtain mesophase carbon microspheres Ball suspension, carbon nanotube suspension, carbon black suspension, strontium titanate suspension;

[0031] C. Uniformly mixing the graphene oxide aqueous solution with the mesophase carbon microsphere suspension, carbon nanotube suspension, carbon black suspension,...

Embodiment 2

[0036] A. According to the following formula of carbon conductive paste, weigh each component for later use: 500 parts of graphene oxide aqueous solution, 40 parts of mesophase carbon microspheres, 10 parts of carbon nanotubes, 5 parts of carbon black, 15 parts of strontium titanate, 10 parts of potassium sodium niobate, 10 parts of DP460NS epoxy resin glue, 3 parts of 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, the volume fraction is 70% 850 parts of ethanol aqueous solution;

[0037] B. Washing, stirring and crushing mesophase carbon microspheres, carbon nanotubes, carbon black, strontium titanate, potassium sodium niobate and ethanol aqueous solution with a volume fraction of 70% at a ratio of 1:10 in parts by mass, Obtain mesophase carbon microsphere suspension, carbon nanotube suspension, carbon black suspension, strontium titanate suspension, potassium sodium niobate suspension;

[0038] C. Uniformly mixing the graphene oxide aqueous solution with the mesoc...

Embodiment 3

[0043]A. According to the following formula of carbon conductive paste, weigh each component for later use: 500 parts of graphene oxide aqueous solution, 40 parts of mesophase carbon microspheres, 10 parts of carbon nanotubes, 5 parts of carbon black, 15 parts of strontium titanate, 10 parts of titanium dioxide, 10 parts of DP460NS epoxy resin glue, 3 parts of 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 1000 parts of ethanol aqueous solution with a volume fraction of 70% share;

[0044] B. The mesophase carbon microspheres, carbon nanotubes, carbon black, strontium titanate, and titanium dioxide are washed, stirred, and crushed with ethanol aqueous solution with a volume fraction of 70% at a ratio of 1:10 to obtain the mesophase Carbon microsphere suspension, carbon nanotube suspension, carbon black suspension, strontium titanate suspension, titanium dioxide suspension;

[0045] C. Uniformly mixing the graphene oxide aqueous solution with the mesocarbon microsphe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
electrical resistanceaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of carbon composite material preparation, and proposes a carbon conductive paste, which comprises the following components by weight: 100-1000 parts of graphene oxide aqueous solution, 20-50 parts of mesophase carbon microspheres, and 5 parts of carbon nanotubes. ~10 parts, carbon black 5~10 parts, resistance stabilizer 20~40 parts, binder 5~15 parts, antioxidant 1~5 parts, solvent 550~1100 parts. The mesophase carbon microspheres, carbon nanotubes, carbon black, and resistance stabilizer are pre-dispersed separately, then mixed with graphene oxide aqueous solution, then heat-treated, filtered to obtain a paste, and then added with binder, antioxidant and The remaining amount of solvent is ground to obtain carbon conductive paste. The invention solves the problems of high square resistance and poor adhesion of the conductive paste in the prior art, power rise of the conductive film after being heated, and power attenuation after long-term use.

Description

technical field [0001] The invention relates to the field of carbon composite material preparation, and provides a carbon conductive paste and a preparation method. Background technique [0002] Carbon conductive paste is mainly composed of carbon conductive particles, binders, solvents, additives and other components. It is an intermediate product commonly used for printing conductive points or conductive lines. Generally, it is printed by screen printing, letterpress printing, and flexographic printing. , gravure printing or lithographic printing on non-conductive substrates such as plastic, glass, ceramics or cardboard. Compared with the etching process, the conductive paste printing only needs to pass through the drying solvent, and will not produce a large amount of waste liquid like the etching process, and can achieve mass production with a low scrap rate. It is considered to be a more environmentally friendly, more efficient, and Lower cost production process. [0...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/24H01B13/00
CPCH01B1/24H01B13/00
Inventor 崔五力
Owner 唐山烯彤科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap