Graphene/white carbon black nanometer composite material and preparation method thereof

A technology of graphene-based materials and composite materials, which is applied in the field of graphene composite materials, can solve the problems of graphene oxide sheets, such as curling and folding, poor dispersion, and uneven compounding, so as to suppress self-agglomeration effects, enhance dispersion, and improve The effect of homogeneity and stability

Inactive Publication Date: 2020-08-07
SHANDONG OBO NEW MATERIAL CO LTD
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there are successively reports on the related documents of mixing graphene and white carbon black to obtain composite fillers, in which the graphene-based materials and white carbon black are mainly solution blended and mechanically blended, but the above-mentioned poor dispersion still exists. question
Among them, there are also reports in the literature that var...

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
  • Graphene/white carbon black nanometer composite material and preparation method thereof
  • Graphene/white carbon black nanometer composite material and preparation method thereof
  • Graphene/white carbon black nanometer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0080] The present invention also provides a kind of preparation method of graphene / white carbon black composite material, comprises the following steps:

[0081] 1) mixing the graphene oxide aqueous dispersion with a silane coupling agent, and performing a grafting reaction to obtain a reaction system;

[0082] 2) adding white carbon black to the reaction system obtained in the above steps and mixing again, and performing grafting reaction again to obtain a graphene / white carbon black composite material.

[0083] The present invention is to the selection, composition and structure of the material in the above-mentioned preparation method, and corresponding optimal principle, and the selection, composition and structure of the material in the aforementioned graphene / silica composite material, and corresponding optimal principle all preferably can Correspondingly, details are not repeated here.

[0084] In the present invention, the graphene oxide water dispersion liquid and t...

Embodiment 1

[0128] 1) Weigh 55g of graphene oxide dispersion with a concentration of 0.181%, add 228g of high-purity water, add acids such as glacial acetic acid or hydrochloric acid, adjust the pH to 3.5-4.5, and disperse with ultrasonic stirring for 1 hour.

[0129] 2) Weigh 2g of silane coupling agent Si69 and dissolve it in 50g of absolute ethanol; add the Si69 / ethanol dispersion liquid to the graphene oxide dispersion liquid dropwise, and disperse with ultrasonic stirring for 1h;

[0130] 3) Put the silane coupling agent / graphene oxide dispersion in an oil bath, raise the temperature to 70°C, and pre-react for 2 hours;

[0131] 4) Weigh 20g of white carbon black, add 200g of pure water, and ultrasonically stir and disperse for 1h to obtain a nanoscale aqueous dispersion of white carbon black;

[0132] 5) adding the silica aqueous dispersion to the pretreated silane coupling agent / graphene oxide dispersion obtained in step 3), and ultrasonically stirring and dispersing for 1 h;

[01...

Embodiment 2

[0143] 1) Weigh 55g of graphene oxide dispersion with a concentration of 0.181%, add 228g of high-purity water, add acids such as glacial acetic acid or hydrochloric acid, adjust the pH to 3.5-4.5, and disperse with ultrasonic stirring for 1 hour.

[0144] 2) Weigh 2g of silane coupling agent Si747 and dissolve it in 50g of absolute ethanol; add the Si747 / ethanol dispersion liquid to the graphene oxide dispersion liquid dropwise, and disperse with ultrasonic stirring for 1h;

[0145] 3) Put the silane coupling agent / graphene oxide dispersion in an oil bath, raise the temperature to 70°C, and pre-react for 2 hours;

[0146] 4) Weigh 20g of white carbon black, add 200g of pure water, and ultrasonically stir and disperse for 1h to obtain a nanoscale aqueous dispersion of white carbon black;

[0147] 5) adding the silica aqueous dispersion to the pretreated silane coupling agent / graphene oxide dispersion obtained in step 3), and ultrasonically stirring and dispersing for 1 h;

[...

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
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a graphene/white carbon black composite material. The graphene/white carbon black composite material comprises a graphene material and white carbon black, wherein the white carbon black is grafted on lamellas of the graphene material through chemical bonds. The graphene/silane coupling agent/white carbon black composite material with a novel structure is obtained by bondingthe graphene material and the white carbon black through chemical bonds. In the composite material provided by the invention, the graphene material and the white carbon black are interspersed, mutualagglomeration can be inhibited, and white carbon black nanoparticles are uniformly compounded and grafted on the surfaces of the lamellas of the graphene material, so the graphene material can keep abasic lamellar structure and maintains good single-layer dispersity in the composite material, and the material is a nano-scale highly-dispersed material. Meanwhile, the white carbon black on the surface of the graphene can improve the rigidity of the graphene lamellas, prevent the graphene from curling and folding due to high-temperature shearing in a rubber mixing process and improve the dispersity of the graphene in a rubber matrix.

Description

technical field [0001] The invention belongs to the technical field of graphene composite materials, and relates to a graphene / white carbon black composite material, a preparation method thereof, and a rubber composition, in particular to a graphene / white carbon black nanocomposite material, a preparation method thereof, and a rubber composition thing. Background technique [0002] Graphene is a new material with a single-layer sheet structure composed of carbon atoms. It is a planar film composed of carbon atoms with sp2 hybrid orbitals forming a hexagonal honeycomb lattice, a two-dimensional material with a thickness of only one carbon atom. Because graphene has many excellent physical and chemical properties, it is widely used in energy storage materials, environmental engineering, and sensitive sensing. It is called "black gold" or "king of new materials", and has broad potential application prospects. At present, it has become the focus of attention and research hotsp...

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
IPC IPC(8): C08K9/06C08K9/04C08K9/02C08K3/04C08K3/36C08L21/00
CPCC08K3/36C08K9/02C08K9/04C08K9/06C08K3/042C08L21/00
Inventor 李守杰赵永彬赵新新马立军
Owner SHANDONG OBO NEW MATERIAL CO LTD
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