Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-elasticity electrical-heating fiber, and its preparation method and application

An electric heating, high elasticity technology, applied in textiles and papermaking, coatings, yarns, etc., can solve problems such as no method developed, affecting air permeability, etc.

Active Publication Date: 2017-12-08
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN204808061U discloses a wearable temperature control device, but its patch-type heating sheet will affect the air permeability after wearing; CN204581658U discloses a heating vest for promoting the treatment of frozen shoulder, including a cloth shawl vest and Heating device, but because its electric heating block is composed of electric heating wire wrapped with resin, it cannot still work normally when it is stretched and deformed
Therefore, it is very important to develop a method for preparing a flexible, stretchable and wearable electric heating device with simple process and easy operation, but as far as the inventors of the present invention know, no effective method has been developed so far.

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
  • High-elasticity electrical-heating fiber, and its preparation method and application
  • High-elasticity electrical-heating fiber, and its preparation method and application
  • High-elasticity electrical-heating fiber, and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The S-shaped helical polyester fiber (such as figure 1 As shown, the helix diameter is 700um, and the fiber diameter is 20um) in the nano-silver colloid (diameter: 20-80nm, concentration: 0.1mg / mL, solvent: water) dispersion liquid dip coating 5 times, then carry out annealing treatment (100 °C, 0.5h), then infiltrated and coated in liquid PDMS, and finally cured (80°C, 3h), to obtain high-elastic electric heating fibers. The resistance per unit length measured by a multimeter is 2Ω / cm.

Embodiment 2

[0071] The S-shaped helical polyester fiber (such as figure 1 Shown) on nano-silver sheet (sheet diameter: ~0.5um, BET: 0.80-1.45m 2 / g) Dip coating in water solvent dispersion for 5 times, then annealing treatment (120°C, 1h), then permeate and coat in liquid PDMS, and finally cure (100°C, 2h) to obtain a highly elastic electrode Heating fibers. Its resistance per unit length is 3Ω / cm. Its SEM picture is as follows image 3 As shown, it can be seen that the high-elastic electric heating fiber is linear with uniform diameter as a whole.

Embodiment 3

[0073] The S-shaped helical polyester fiber (such as figure 1 Shown) Dip coating in silver nanowire ethanol dispersion (5mg / mL) for 5 times, then conduct hydrogen plasma treatment (100Pa, 100W, 10min), and then infiltrate and coat in liquid silicone rubber Ecoflex 00-30 Covering, and finally curing (100°C, 0.5h), to obtain high elastic electric heating fibers. Its resistance per unit length is 2.5Ω / cm.

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
resistance per lengthaaaaaaaaaa
particle diameteraaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-elasticity electrical-heating fiber and a preparation method and application thereof. The high-elasticity electrical-heating fiber comprises a helical yarn loaded with a conductive material and an elastic support penetrating into the helical yarn, wrapping the outer surface of the helical yarn and composed of an elastic polymer. The fiber provided by the invention can still maintain stable electrical heating performance under deformation conditions like stretching, bending and twisting.

Description

technical field [0001] The invention relates to a high-elastic electric heating fiber and its preparation method and application, belonging to the field of flexible and wearable electronics and the technical field of new materials. Background technique [0002] Wearable electric heating devices are mainly used to provide warmth and thermotherapy applications. Electric heating devices based on resistive Joule heating are most promising to be widely used in wearable devices due to their easy processing, convenient regulation and high efficiency energy conversion. The traditional material used for electric heating is mainly indium-doped tin oxide (ITO), but because it is brittle, it is difficult to achieve good applications in the wearable field that has high requirements for flexibility and even stretchability. In recent years, some nanomaterials with excellent electrical conductivity and mechanical flexibility, such as carbon nanotubes [Ref. 1], graphene [Ref. 2], metal nano...

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): D06N7/00D02G3/36D02G3/04D02G3/38
CPCD02G3/04D02G3/36D02G3/38D06N7/00D06N2201/0263D06N2201/0281D06N2201/042D06N2203/066D06N2203/068D06N2211/10D10B2321/10
Inventor 孙静程荫王冉冉王焱
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com