Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite conductive fiber and preparation method thereof

A composite conductive and fiber technology, applied in the manufacture of conductive/antistatic filaments, single-component fibroin artificial filaments, etc., can solve the problems of easy falling off, easy dissolution of conductive materials, thick conductive fibers, etc., and achieve easy batch production Production, ensuring conductivity, and the effect of simple preparation method

Inactive Publication Date: 2019-02-26
XIAMEN UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wherein method (1) is the most common attachment method, but, this attachment method exists that the coating is thicker when the conductive material is coated on the fiber, resulting in the prepared conductive fiber being too thick, and the particles of the conductive material of the coating are due to The reason for the adhesion is easy to fall off, and the conductive material is easy to dissolve when it meets water, etc.

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
  • Composite conductive fiber and preparation method thereof
  • Composite conductive fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] A method for preparing a composite conductive fiber provided by an embodiment of the present invention comprises the following steps:

[0023] S1, preparing silk fibroin solution.

[0024] Further, the preparation method of the silk fibroin solution comprises the following steps:

[0025] S11, removing impurities from the silk and putting it into a sodium bicarbonate solution with a mass fraction of 0.5% to 1% for degumming, rinsing and drying to obtain silk fibers. Further, the degummed silk is placed in a sodium bicarbonate solution with a mass fraction of 0.5% to 1%, degummed at 60 to 100°C for 60 to 90 minutes, and then rinsed and dried to obtain silk fibroin fibers.

[0026] S12: dissolving the silk fiber in a dissolving solution and filtering to obtain an initial silk fibroin solution.

[0027] Further, the dissolving solution is selected from one of lithium bromide solution, calcium chloride solution and formic acid, and the dissolving temperature of the silk f...

Embodiment 1

[0043] In this embodiment, a composite conductive fiber is provided, which is prepared according to the following steps:

[0044] (1) Pour 2.5L of distilled water into a heating pot and heat to boil. Pour 20g of impurity-removed silk and 25g of sodium bicarbonate solid into the pot for degumming. Control the degumming temperature at about 80°C and the degumming time is 90min. . After the degumming is completed, the silk fibers are obtained after rinsing and drying.

[0045] (2) Put 6 g of silk fibroin fiber into a closed container of 9.3 mol / L lithium bromide, and dissolve at a constant temperature at 60° C. to obtain an initial silk fibroin solution.

[0046] (3) Filtrate the initial silk fibroin solution and then fill it into a dialysis bag, place the dialysis bag in ultrapure water for dialysis for 48 hours, and obtain a pure silk fibroin solution.

[0047] (4) The pure silk fibroin solution was centrifuged at 5000rpm for 20min and then filtered, then transferred to a dia...

Embodiment 2

[0052] In this embodiment, a composite conductive fiber is provided, which is prepared according to the following steps:

[0053] (1) Pour 2.5L of distilled water into a heating pot and heat to boil. Pour 20g of impurity-removed silk and 12.5g of sodium bicarbonate solid into the pot for degumming. Control the degumming temperature at about 80°C. The degumming time is 80min. After the degumming is completed, the silk fibers are obtained after rinsing and drying.

[0054] (2) Put 5 g of silk fibroin fiber into a closed container of 9.5 mol / L lithium bromide, and dissolve at a constant temperature at 40° C. to obtain an initial silk fibroin solution.

[0055] (3) Filtrate the initial silk fibroin solution and then fill it into a dialysis bag, place the dialysis bag in ultrapure water for dialysis for 36 hours, and obtain a pure silk fibroin solution.

[0056] (4) The pure silk fibroin solution was centrifuged at 6000rpm for 20min and then filtered, then transferred to a dialys...

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
Login to View More

Abstract

The invention provides composite conductive fiber and a preparation method thereof, and relates to the technical field of conductive fiber. The preparation method comprises the following steps: S1, preparing a silk fibroin solution; S2, mixing the silk fibroin solution with a multi-walled carbon nanotube solution to obtain a spinning solution, wherein the mass ratio of silk fibroin to multi-walledcarbon nano tubes in the spinning solution is 1:0.1-0.35; S3, injecting the spinning solution into a coagulating bath by adopting a wet spinning process to solidify to obtain nascent fiber, and performing stretching and steam treatment on the nascent fiber to obtain the composite conductive fiber. The composite conductive fiber combines the silk fibroin and the multi-walled carbon nanotubes at amolecular level, so that the multi-walled carbon nanotubes are not easy to fall off, and good flexibility and conductivity are achieved. The preparation process is simple, and production in batches iseasy.

Description

technical field [0001] The invention relates to the technical field of conductive fibers, and in particular to a composite conductive fiber and a preparation method thereof. Background technique [0002] Silk fiber is the only natural polymer fiber that is widely used in modern times. It has the reputation of "Fiber Queen". It can be used in textiles and clothing, biomedicine, optoelectronic materials, composite materials and other fields. It is the main component of composite conductive fibers. one. The main components of silk fiber are silk fibroin and sericin, wherein silk fibroin accounts for about 70-80% of the total weight of silk, and sericin accounts for 20-30% of the total weight. [0003] At present, the preparation methods of composite conductive fibers are mainly: using different methods to attach conductive materials to the surface of fibers to endow the fibers with conductivity, for example: (1) using adhesives to coat and adhere conductive materials to the su...

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): D01F4/02D01F1/09
CPCD01F1/09D01F4/02
Inventor 刘向阳刘强
Owner XIAMEN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com