Method for preparing electroconductive polymer compound for strain and/or pressure sensing

A conductive polymer and composite technology, applied in the field of mechanical sensors, can solve the problems of difficult to meet the large strain of the skin, destroy the aggregated structure, reduce the ductility of materials, etc., achieve excellent self-healing ability, high conductivity, long-term The effect of stability

Active Publication Date: 2017-12-01
UNIV OF SCI & TECH OF CHINA
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the destruction of the aggregated structure of the polymer chain by nano-nickel, the ductility of the material is greatly reduced, so that the maximum breaking strain is only 30%, and the pressure sensitivity is poor, so it is difficult to meet the needs of human skin with large strain.

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
  • Method for preparing electroconductive polymer compound for strain and/or pressure sensing
  • Method for preparing electroconductive polymer compound for strain and/or pressure sensing
  • Method for preparing electroconductive polymer compound for strain and/or pressure sensing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058]0.2g aniline, 3g concentration is the aqueous solution of the phytic acid of 50% by weight, 5g concentration is the aqueous solution (Mw=240000) of polyacrylic acid (Mw=240000) of 25% by weight by stirring and mixing to form a clear light yellow solution, get the aqueous solution of 1mL ammonium persulfate ( 0.87mmol) was added to the above mixed solution, stirred evenly, and reacted at 0-5°C for 12h to obtain an emerald green solution. Wherein, by calculation, based on the total weight of the emerald green solution, the amount of aniline is 1.9% by weight; the amount of phytic acid is 14.4% by weight; the amount of polyacrylic acid is 12% by weight; the amount of ammonium persulfate is 1.9% by weight %; and the amount of water is 69.8% by weight.

[0059] The obtained emerald green solution was coated on a common polytetrafluoroethylene mold with a flat bottom of 4cm×4cm×2mm in size, and the black polymer film 1 was obtained by evaporating the solvent at 30° C. for 24 h...

Embodiment 2

[0061] An experiment was performed in a similar manner to Example 1 except that the amount of phytic acid was changed to 4.8% by weight to obtain a black polymer film 2 .

Embodiment 3

[0063] An experiment was performed in a similar manner to Example 1 except that the amount of phytic acid was changed to 24.0% by weight to obtain a black polymer film 3 .

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
lengthaaaaaaaaaa
widthaaaaaaaaaa
elongationaaaaaaaaaa
Login to view more

Abstract

The invention provides a method for preparing an electroconductive polymer compound. The method comprises the steps that aniline, an optional phytic acid, a water-soluble polymer of which the side chain comprises one or more of hydroxyl, carboxyl and sulfo group, a free radical polymerization initiator and a solvent are mixed, and a polymerization reaction is performed. The invention also provides a method for preparing the electroconductive polymer compound for strain and/or pressure sensing. The electroconductive polymer compound prepared by the method has favorable self-healing nature, mechanical property and electrical property. Besides, when used for a strain sensor or a pressure sensor, an electroconductive polymer compound membrane prepared by the method has excellent sensing sensitivity and actual monitoring and sensing capabilities before and after self-healing.

Description

technical field [0001] The invention relates to the technical field of mechanical sensors, in particular, the invention provides a method for preparing a conductive polymer composite and a preparation of a conductive polymer composite film for strain and / or pressure sensing method. Background technique [0002] Human skin is an important organ for the human body to sense the surrounding environment. How to bionic the sensing ability of human skin to obtain electronic skin that can be applied in the fields of human-computer interaction, flexible robots, wearable devices, prosthetics and artificial intelligence has important practical significance. . Among them, an important part of the electronic skin field is the mechanical sensor. How to realize the electronic skin to convert external stimuli (such as: pressure, strain, vibration, humidity, temperature, etc.) into changes in electrical signals is the research focus of scientific researchers. In addition, compared with the...

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): C08L33/02C08L29/04C08L25/18C08L79/02C08K5/52C08J5/18C08G73/02G01L1/16G01L9/08
CPCC08G73/0266C08J5/18C08J2325/18C08J2329/04C08J2333/02C08J2479/02C08L25/18C08L29/04C08L33/02C08L2203/16G01L1/16G01L9/08C08L79/02C08K5/52
Inventor 徐航勋汪韬
Owner UNIV OF SCI & TECH OF CHINA
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