Self-healing conductive ionic gel as well as preparation method and application thereof

A conductive ion, self-healing technology, applied in the direction of conductive materials, conductive materials, conductors, etc., can solve the problems of complex preparation process, low mechanical strength, weak tensile performance, etc., achieve high mechanical strength, improve durability and use The effect of life and high stretchability

Inactive Publication Date: 2020-10-30
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, the existing ion gels have more or less disadvantages such as low mechanical strength, weak tensile

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
  • Self-healing conductive ionic gel as well as preparation method and application thereof
  • Self-healing conductive ionic gel as well as preparation method and application thereof
  • Self-healing conductive ionic gel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038]The monomer molar ratio of polymer PEO (molecular weight is 100kg / mol) and monomer AA is 1.0:0.6, photoinitiator 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone ( I2959, 0.01 mol% of AA monomer), electrolyte salt LiTFSI (7wt% of the mixed solution), solvent deionized water (water content when the total mass of PAA and PEO polymers accounts for 40% of the mixed solution).

[0039] The above-mentioned raw materials were mixed and fully dissolved by magnetic stirring, and a clear and transparent mixed solution was obtained. Put the glass bottle containing the mixed solution into a vacuum defoaming mixer for 10 minutes, and then put it into a plexiglass glove box for deoxidation (N 2 environment) to avoid free radical quenching during free radical polymerization, and then the mixture was poured into a self-made glass plate mold in a glove box, and cross-linked under UV light (365 nm, 72 W) for 1 h. After the cross-linked ion gel is demolded, put it ...

Example Embodiment

[0040] Example 2

[0041] The monomer molar ratio of polymer PEO (molecular weight is 100kg / mol) and monomer AA is 1.0:0.8, and other parameters and steps are the same as in Example 1 to obtain PAA 0.8 -PEO 100k / 1.0 -7% Li conductive hydrogel.

Example Embodiment

[0042] Example 3

[0043] The monomer molar ratio of polymer PEO (molecular weight is 100kg / mol) and monomer AA is 1.0:1.0, and the remaining parameters and steps are the same as in Example 1 to obtain PAA 1.0 -PEO 100k / 1.0 -7% Li conductive hydrogel.

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
Thicknessaaaaaaaaaa
Conductivityaaaaaaaaaa
Login to view more

Abstract

The invention discloses self-healing conductive ionic gel as well as a preparation method and application thereof. The method comprises the following steps of: uniformly mixing polyethylene glycol, acrylic acid, an initiator, electrolyte salt and water, then carrying out photo-initiated or thermal-initiated polymerization reaction under an oxygen-free or inert condition, and finally balancing under a constant-temperature and constant-humidity condition to obtain the self-healing conductive ionic gel. The PAA-PEO-Li ionic gel prepared by a one-step method has the advantages that the mechanicalstrength far higher than that of common ionic gel is obtained through the hydrogen bond effect and the chain entanglement effect between PAA-PEO molecular chains, good stretchability and rebound resilience can be achieved under the condition that high mechanical strength is kept, and a flexible sensor which is high in sensitivity and good in stability and repeatability can be prepared and used formonitoring human motion or simulating biological skin to feel external stimulation. The self-healing conductive ionic gel has excellent optical transparency and can be used as a potential material for preparing optical devices.

Description

technical field [0001] The invention belongs to the technical field of conductive hydrogel materials, and in particular relates to a self-healing conductive ion gel and its preparation method and application. Background technique [0002] Conductive hydrogels are a class of highly functional conductive materials whose three-dimensional network and porous structure can accommodate a large amount of water and provide rapid transport channels for charge carriers. Compared with traditional electronic materials mainly based on rigid substrates, conductive hydrogels have good biocompatibility, hydrophilicity, swelling property and flexibility. And the synergistic mechanism of its mechanical network and conductive network makes it still have excellent electrical conductivity under deformation conditions such as mechanical stretching, bending, and folding. Based on the above multiple advantages, conductive hydrogels have shown excellent application potential in the fields of artifi...

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): C08J3/075C08J3/24C08L71/02C08L33/02C08K5/44H01B1/12
CPCC08J3/075C08J3/246C08J2333/02C08J2371/02C08J2433/02C08J2471/02C08K5/44H01B1/122
Inventor 岳衎邓芷霜
Owner SOUTH CHINA 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