Graphene-based hybrid multilayer structure fiber material, preparation thereof and application

A fiber material and multi-layer structure technology, which is applied in the fields of carbon fiber, fiber processing, and analysis materials, can solve the problems of high cost and complicated preparation process, and achieve the effects of short time consumption, high sensitivity and detection range, and low energy consumption

Active Publication Date: 2021-03-19
NANJING UNIV OF TECH
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a convenient and quick method for preparing a graphene-based hybrid multilayer structure fiber material that can be used in large-scale production, to overcome the disadvantages of conventional sensor conductive materials such as complicated preparation process and high cost

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-based hybrid multilayer structure fiber material, preparation thereof and application
  • Graphene-based hybrid multilayer structure fiber material, preparation thereof and application
  • Graphene-based hybrid multilayer structure fiber material, preparation thereof and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Put the oxidized graphene water dispersion (15 mg / ml) into nitrate (Ni (Ni (Ni (Ni) having a rotational speed of 5% by 5% by 5% by 5% by 5% by 5% by 400 μl / min. 3 ) 2 · 6h 2 O) Ni ​​will be obtained in solution 2+ Cross-linked GO fibers are removed from the coagulation bath and place 12h at room temperature. The resulting RGO fibers were mixed with 200 mg of melamine and placed in a crucible in a hydrated carbide solution atmosphere. 2The tube furnace under the atmosphere was thermally reduced, and the heating rate was 5 ° C / min, 700 ° C for 0.5 h, resulting in the final product. At this time, CNT was grown in situ in RGO fibers under Ni catalysis.

[0037] The graphene-based multilayer structure fiber material prepared in this example can be used as a sensor conductive material, first mixing the PDMS main agent and the hardener in mass than 10: 1, even on the polytetrafluoroethoate. After drying as a sensor substrate. The copper wires of the two diameter diameter of ...

Embodiment 2

[0041] Put the cobalt nitrate (CO (NO (NO) having a rotational speed of 5% by 5% by 5% a rotational speed of 5% by 5% by 5% by 400 μl / min. 3 ) 2 · 6h 2 O) Ni ​​will be obtained in solution 2+ Cross-linked GO fibers are removed from the coagulation bath and place 12h at room temperature. The resulting RGO fibers were mixed with 200 mg of melamine and placed in a crucible in a hydrated carbide solution atmosphere. 2 The tube furnace under the atmosphere was thermally reduced, and the heating rate was 5 ° C / min, 700 ° C for 0.5 h, resulting in the final product. At this time, CNT was grown in situ in the RGO fiber under the catalysis of CO.

[0042] In contrast to Example 1: The length of the CNTs of the fiber surface is small, poor density, and the conductivity of the fibers is lower than that of the obtained hybrid multilayer structural fiber material obtained under Ni catalysis, and thereby causing the performance of the sensor. difference.

Embodiment 3

[0044] The water dispersion (15 mg / ml) of oxidized graphene is extruded into a nitrate having a rotational speed of 5% by 5% by 5% by 400 μl / min (FE (NO). 3 ) 3 · 9h 2 O) Ni ​​will be obtained in solution 2+ Cross-linked GO fibers are removed from the coagulation bath and place 12h at room temperature. The resulting RGO fibers were mixed with 200 mg of melamine and placed in a crucible in a hydrated carbide solution atmosphere. 2 The tube furnace under the atmosphere was thermally reduced, and the heating rate was 5 ° C / min, 700 ° C for 0.5 h, resulting in the final product. At this time, CNT was grown in situ in the RGO fibers under the catalysis of Fe.

[0045] In contrast to Example 1: The length of the CNTs of the fiber surface is small, poor density, and the conductivity of the fibers is lower than that of the obtained hybrid multilayer structural fiber material obtained under Ni catalysis, and thereby causing the performance of the sensor. difference.

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
diameteraaaaaaaaaa
electrical conductivityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a graphene-based hybrid multilayer structure fiber material and application of a sensor material, and belongs to the technical field of preparation of functional nano materials. Transition metal ion cross-linked graphene oxide fibers are prepared through a wet spinning technology, the strength and the conductivity of the fibers are improved through chemical reduction, then the fibers and a proper amount of melamine are mixed in an inert gas atmosphere, thermal reduction in-situ catalytic growth of carbon nanotubes is conducted, and graphene-basedhybrid multilayer structure fibers are obtained. The material prepared by the preparation method of the graphene-based hybrid multilayer structure fiber material has the advantages of high sensitivity, large detection range, high response speed and good stability in sensor material application. The whole preparation process of the material is simple, no toxic product is generated in the reactionprocess, the energy consumption is low, and the method is environment-friendly and suitable for industrial large-scale production.

Description

Technical field [0001] A method of preparation of graphene groups as a flexible wearable sensor conductive material, which belongs to the preparation of functional nanomaterials. Background technique [0002] In recent years, flexible electronic equipment has developed rapidly, with greater flexibility relative to traditional electrons, and can accommodate different complex working environments to some extent to meet the deformation requirements of equipment. Among them, the flexible wearable sensor has received extensive attention due to its huge potential in the fields of human physiological signal monitoring and smart human machine control. It is conveniently bonded to the human skin or clothing through the flexible sensor, and real-time detection of various actions or physiological signals, including pulse, heartbeat, sound, breathing, etc. Weak signal and limb movement, etc., temperature and humidity The sensor can also be used to detect changes in human temperature or envir...

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 Applications(China)
IPC IPC(8): D01F9/12D06M11/63D06M11/74G01N3/06D06M101/40
CPCD01F9/12D06M11/63D06M11/74G01N3/066D06M2101/40
Inventor 朱纪欣胡云峰
Owner NANJING UNIV OF TECH
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