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Graphene enhanced conductive rubber film and preparation method thereof

A technology of conductive rubber and graphene, which is applied in the manufacture of conductive/anti-static filaments, artificial filaments made of inorganic materials, etc., can solve the problems of inability to balance conductivity and mechanical performance enhancement, and achieve mechanical strength and conductivity improvement, performance Excellent effect with broad application prospects

Inactive Publication Date: 2019-02-05
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defect that the currently widely used carbon-based conductive fillers, especially graphene-modified conductive rubber, cannot take into account the enhancement of electrical conductivity and mechanical properties, the present invention proposes a graphene-enhanced conductive rubber film and its preparation method. In this way, the mechanical strength and electrical conductivity of the rubber are greatly improved at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation process is:

[0033] (1) Disperse graphene oxide in water, add alkali to induce graphene oxide to form highly oriented nematic liquid crystals, and then mix and stir with ferrite nanofibers and metal nanowires to obtain spinning solution sol; alkali It is sodium hydroxide; the metal nanowires are iron nanowires; wherein, 3 parts by weight of graphene oxide, 56 parts by weight of water, 1 part by weight of alkali, 36 parts by weight of ferrite nanofibers, and 4 parts by weight of metal nanowires;

[0034] (2) Spinning the spinning solution sol prepared in step (1), and applying an external magnetic field in the axial direction of the ejected fibers, immersing the ejected fiber bundles in a circulating coagulation bath, and then washing and drying, Graphene oxide doped modified ferrite nanofibers were obtained; the strength of the external magnetic field was 2.5T; the coagulation bath was composed of sulfuric acid, sodium sulfate, and zinc sulfate, the tem...

Embodiment 2

[0042] The preparation process is:

[0043] (1) Disperse graphene oxide in water, add alkali to induce graphene oxide to form highly oriented nematic liquid crystals, and then mix and stir with ferrite nanofibers and metal nanowires to obtain spinning solution sol; alkali It is potassium hydroxide; the metal nanowires are cobalt nanowires; wherein, 2 parts by weight of graphene oxide, 64 parts by weight of water, 1 part by weight of alkali, 30 parts by weight of ferrite nanofibers, and 3 parts by weight of metal nanowires;

[0044] (2) Spinning the spinning solution sol prepared in step (1), and applying an external magnetic field in the axial direction of the ejected fibers, immersing the ejected fiber bundles in a circulating coagulation bath, and then washing and drying, Graphene oxide doped modified ferrite nanofibers were obtained; the strength of the external magnetic field was 2T; the coagulation bath was composed of sulfuric acid, sodium sulfate, and zinc sulfate, the ...

Embodiment 3

[0052] The preparation process is:

[0053] (1) Disperse graphene oxide in water, add alkali to induce graphene oxide to form highly oriented nematic liquid crystals, and then mix and stir with ferrite nanofibers and metal nanowires to obtain spinning solution sol; alkali It is magnesium hydroxide; the metal nanowires are nickel nanowires; wherein, 4 parts by weight of graphene oxide, 49 parts by weight of water, 2 parts by weight of alkali, 40 parts by weight of ferrite nanofibers, and 5 parts by weight of metal nanowires;

[0054] (2) Spinning the spinning solution sol prepared in step (1), and applying an external magnetic field in the axial direction of the ejected fibers, immersing the ejected fiber bundles in a circulating coagulation bath, and then washing and drying, Graphene oxide doped modified ferrite nanofibers were obtained; the strength of the external magnetic field was 3T; the coagulation bath was composed of sulfuric acid, sodium sulfate, and zinc sulfate, the...

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Abstract

The invention provides a graphene enhanced conductive rubber film and a preparation method thereof. The preparation method comprises the following steps: adding graphene oxide, alkali, ferrite nano-fibers and metal nano-wires into water in sequence and mixing to obtain spinning solution sol; then carrying out spinning under the action of an external magnetic field to prepare graphene oxide doped modified ferrite nano-fibers; reducing the graphene oxide by utilizing a reducing agent; finally, dispersing the graphene and natural rubber into tetrahydrofuran; after mixing, pouring to form a film,so as to obtain the graphene enhanced modified conductive rubber film. According to the method provided by the invention, oriented ferrite nano-fibers prepared by applying the magnetic field and the lamellar graphene are mutually overlapped and are dispersed in a rubber matrix to form an ordered strip-shaped enhanced structure; the mechanical strength and conductivity of rubber are greatly improved; a preparation process is simple and the prepared conductive rubber film has excellent performance and a wide application prospect.

Description

technical field [0001] The invention relates to the field of rubber modification, in particular to the preparation of reinforced conductive rubber, in particular to a graphene reinforced conductive rubber film and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronic industry and information technology, the problem of electromagnetic interference between electronic products has become more and more obvious. Problems such as electromagnetic interference, electromagnetic radiation and static electricity have brought a great impact on people's daily life and industrial and agricultural production. Electromagnetic shielding is one of the most basic methods of electromagnetic interference protection and control. Through absorption, reflection, and multiple reflections, the energy of electromagnetic waves is lost in the propagation process to the extent that it does not interfere with the normal operation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K9/04C08K3/04C08K7/08C08J5/18D01F9/08D01F1/09
CPCC08J5/18C08J2307/00C08K3/042C08K7/08C08K9/04C08K2201/001C08K2201/011D01F1/09D01F9/08
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD