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Preparation method of modified carbon nanotube/graphene-resin conductive fibers

A technology of conductive fibers and carbon nanotubes, which is applied in the chemical characteristics of fibers, textiles and papermaking, chemical post-processing of rayon, etc.

Inactive Publication Date: 2016-08-03
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, there has been no report on the application of cryogenic treatment to the wear resistance modification of conductive fibers.

Method used

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  • Preparation method of modified carbon nanotube/graphene-resin conductive fibers
  • Preparation method of modified carbon nanotube/graphene-resin conductive fibers
  • Preparation method of modified carbon nanotube/graphene-resin conductive fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Carbon nanotube / graphene-polyvinyl alcohol reinforced conductive fiber:

[0039] (1) Dissolve graphene in deionized water to prepare a 3mg / ml graphene solution, and ultrasonically disperse it for 1h; then add concentrated sulfuric acid and nitric acid (17:5) to the graphene solution to acidify the carbon nanotubes, and continue ultrasonic treatment for 2h , to obtain carbon nanotube / graphene composite spinning slurry 1;

[0040] (2) The carbon nanotube / graphene composite spinning slurry 1 that step (1) obtains is passed through the spinneret that diameter is 40 μm with the extrusion speed of 100 μ L / min, and polyvinyl alcohol (concentration is 5% at 25 ℃) ) stay in the coagulation bath 2 for 3600s to obtain carbon nanotube / graphene-polyvinyl alcohol reinforced conductive fiber 3, and dry at 100°C to obtain dry carbon nanotube / graphene-polyvinyl alcohol reinforced conductive fiber 4;

[0041] (3) The carbon nanotube / graphene-polyvinyl alcohol reinforced conductive fiber...

Embodiment 2

[0046] Carbon Nanotube / Graphene-Epoxy Reinforced Conductive Fibers:

[0047] (1) Dissolve graphene in deionized water and methanol mixture to prepare a 2mg / ml graphene solution, and ultrasonically disperse it for 1h; then add concentrated sulfuric acid and nitric acid (17:5) to the graphene solution to acidify the carbon nanotubes, Continue ultrasonic treatment for 2h to obtain carbon nanotube / graphene composite spinning slurry 1;

[0048] (2) The carbon nanotube / graphene composite spinning slurry 1 that step (1) obtains is passed through the spinning nozzle that diameter is 30 μm with the extrusion speed of 50 μ L / min, and the epoxy resin (concentration is 5% at 20 ℃) ) stay in the coagulation bath 2 for 1800s to obtain carbon nanotube / graphene-epoxy resin reinforced conductive fiber 3, and dry at 100°C to obtain dry carbon nanotube / graphene-epoxy resin reinforced conductive fiber 4;

[0049] (3) The carbon nanotube / graphene-epoxy resin reinforced conductive fiber 4 is place...

Embodiment 3

[0054] Carbon nanotube / graphene-polydimethylsiloxane reinforced conductive fiber

[0055] (1) Dissolve graphene in deionized water to prepare a 2mg / ml graphene solution, and ultrasonically disperse it for 1h; then add concentrated sulfuric acid and nitric acid (17:5) to the graphene solution to acidify the carbon nanotubes, and continue ultrasonic treatment for 2h , to obtain carbon nanotube / graphene composite spinning slurry 1;

[0056] (2) The carbon nanotube / graphene composite spinning slurry 1 that step (1) obtains is passed through the spinning nozzle that the diameter is 100 μm with the extrusion speed of 80 μ L / min, in 10 ℃ polydimethylsiloxane ( Concentration is 5%) stay in coagulation bath 2 for 2700s, obtain carbon nanotube / graphene-polydimethylsiloxane reinforced conductive fiber 3, dry at 100 ℃, obtain dry carbon nanotube / graphene-polydimethylsiloxane Silicone reinforced conductive fibers 4;

[0057] (3) The carbon nanotube / graphene-polydimethylsiloxane reinforce...

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Abstract

The invention relates to a preparation method of modified carbon nanotube / graphene-resin conductive fibers .The preparation method comprises the steps that a carbon nanotube / graphene composite spinning solution is subjected to wet spinning and drying to obtain carbon nanotube / graphene-resin conductive fibers; the coagulating bath adopted for wet spinning is a resin coagulating bath; under a stretching condition, the carbon nanotube / graphene-resin conductive fibers are subjected to subzero treatment, then the temperature is returned to room temperature and maintained for a period of time, and the modified carbon nanotube / graphene-resin conductive fibers are obtained .The material has broad application prospects in the electronic textile field, electromagnetic shielding field and intelligent wearable field .The subzero treatment technological process and subzero treatment equipment are simple in structure .Compared with other modification treatment processes, more energy is saved, more production cost is reduced, and good development prospects are achieved.

Description

technical field [0001] The invention belongs to the field of preparation of modified conductive fibers, in particular to a preparation method of modified carbon nanotube / graphene-resin conductive fibers. Background technique [0002] Conductive materials have a wide range of uses. With the development of nanotechnology, metals or alloys in the prior art can no longer meet the requirements of practical applications. Ultrafine conductive fibers used in smart wearable and high-end smart fields have attracted wide attention. [0003] Carbon nanotubes are a one-dimensional quantum material with a special carbon six-membered ring structure. The radial size is on the order of nanometers, and the axial size is on the order of microns. It is also widely used in conductive materials due to its good electrical conductivity. . The carbon nanotube wires in the prior art are interconnected by a plurality of microscopic carbon nanotubes to form macroscopic ultrafine conductive fibers. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12D01F11/14D01F11/16
CPCD01F9/12D01F11/14D01F11/16
Inventor 许福军吴建花王志勇
Owner DONGHUA UNIV
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