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

All-weather self-healing stretchable conductive materials and preparation method thereof

A conductive material, self-healing technology, applied to conductive materials dispersed in non-conductive inorganic materials, metal/alloy conductors, cable/conductor manufacturing, etc.

Active Publication Date: 2018-08-17
CHANGZHOU UNIV +1
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductivity and mechanical strength of conductive hydrogels have not met people's requirements so far. Therefore, it is of great research significance to prepare conductive hydrogel materials with high mechanical strength and excellent and stable electrochemical properties through simple and convenient methods.

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
  • All-weather self-healing stretchable conductive materials and preparation method thereof
  • All-weather self-healing stretchable conductive materials and preparation method thereof
  • All-weather self-healing stretchable conductive materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Fully dissolve 2g of γ-PGA (white powder with a molecular weight of 10-70w) and 4g of allyl glycidyl ether in 25mL of deionized water, adjust the pH to 2-4 with acetic acid, stir at room temperature, and react for 36 hours Afterwards, extract three times with dichloromethane, collect the upper layer γ-PGAA aqueous solution, and prepare 50 mg / mL γ-PGAA aqueous solution.

[0031] (2) Take 2g of acrylic acid, 4mL of γ-PGAA solution, 4mg of MBAA, 40mg of APS, 0.056g of FeCl 3 .6H 2 O, GC:H at volume ratios of 0:6, 1:5, 3:3, 5:1, 6:0 2 Mix well in O, pass nitrogen gas for 30 minutes to remove the gas in the solution, and polymerize at 60°C for 30 minutes to obtain composite hydrogels with different solvent volume ratios. When the content of γ-PGAA solution is 0mL, FeCl 3 .6H 2 O content is 0mg, GC:H 2 When the volume ratio of O is 0:6, it is labeled as PAA hydrogel; when the content of γ-PGAA solution is 4mL, FeCl 3 .6H 2 O content is 0mg, GC:H 2When the volume r...

Embodiment 2

[0033] Change embodiment 1 step (2) to get 2g acrylic acid, 4mg MBAA, 40mg APS, 0.056g FeCl 3 .6H 2 O, in GC:H 2 The volume ratio of O is 5:1, the γ-PGAA solutions are 0mL, 2mL, 4mL, 6mL, and 8mL respectively. After the solutions are mixed evenly, the gas in the solution is removed by passing nitrogen gas for 30 minutes, and the polymerization reaction occurs at 60°C for 30 minutes. For composite hydrogels with different γ-PGAA contents, the rest of the steps are the same as in Example 1.

Embodiment 3

[0035] Change Example 1 step (2) to get 2g acrylic acid, 4mL γ-PGAA, 40mg APS, 0.056g FeCl 3 .6H 2 O, in GC:H 2 The volume ratio of O is 5:1, and the mass of MBAA is 0mg, 2mg, 4mg, 6mg, 8mg respectively. After the solution is mixed evenly, the gas in the solution is removed by passing nitrogen gas for 30 minutes, and the polymerization reaction takes place at 60°C for 30 minutes to obtain different Polyacrylic acid and polyglutamic acid composite hydrogels with MBAA content. All the other steps are the same as in Example 1.

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
electrical resistanceaaaaaaaaaa
electrical resistanceaaaaaaaaaa
electrical resistanceaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of all-weather self-healing stretchable conductive materials. The preparation method of all-weather self-healing stretchable conductive materials is characterized by taking acrylic acid and modified polyglutamic acid as base materials, adding Fe3+ to form coordination, adjusting the volume ratio water and glycerin, generating free radical polymerizationafter heating, and generating a homogeneous double-layer three-dimensional network structure, wherein the obtained polyacrylic acid and polyglutamic acid composite hydrogel has preferable mechanicalperformance and also has the characteristic of quick self-healing; depositing a metal layer with 20nm-80nm thickness on a single layer of in-line carbon film to prepare a composite carbon film by means of a magnetron sputtering method, and adhering the composite hydrogel to the upper and lower surfaces of the composite carbon film to form all-weather self-healing stretchable conductive materials with sandwich structure. The preparation method of all-weather self-healing stretchable conductive materials is simple and is wide in the sources of raw materials, and the prepared materials have preferable electrical and mechanical performance, and the preparation method of all-weather self-healing stretchable conductive materials has wide application prospects in the fields of flexible stretchable equipment, wearable equipment, software robots and the like.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a preparation method of an all-weather self-healing stretchable conductive material. Background technique [0002] Since the 1940s, research on hydrogels in the fields of bionics, chemistry, and medicine has never stopped. Hydrogel is a polymer compound with a three-dimensional network structure, which can provide a huge specific surface area, making it have strong mechanical strength, ductility, viscosity, toughness and recoverability. In the 1980s, scientists were triggered by self-healing biological systems and developed a new class of self-healing materials that can help improve the life and safety of devices. Self-healing materials can fully or partially restore their original shape after physical, chemical or mechanical damage, most of which are achieved through reversible interactions between polymer backbones such as: hydrogen bonds, covalent bonds, int...

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): H01B5/14H01B1/22H01B1/24H01B13/00C08F220/06C08J3/075C08L77/04C08L33/02
CPCH01B1/22H01B1/24H01B5/14H01B13/00C08F283/04C08J3/075C08J2433/02C08J2377/04C08F220/06H01B1/02C08J2477/04C08J2333/02C09J133/26C08L67/04C01B32/05C09D5/02C09D133/02C23C14/185C23C14/35H01B13/0036
Inventor 袁宁一丁建宁戴胜平
Owner CHANGZHOU UNIV
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