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

Molybdenum disulfide enhanced ionic conductive hydrogel as well as preparation method and application thereof

A molybdenum disulfide, ion conductive technology, applied in the field of hydrogels, can solve the problems of uneven distribution, poor mechanical properties, fatigue resistance, ductility and sensitivity, hindering the application of hydrogels, etc., and achieve excellent mechanical properties and Fatigue resistance, effect of increasing crosslink density

Pending Publication Date: 2022-07-08
TIANJIN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these fillers and polymers are usually unevenly distributed, leading to poor mechanical properties, fatigue resistance, ductility, and sensitivity, which will seriously hinder the application of hydrogels as sensors.
Therefore, it is a great challenge to fabricate hydrogels with improved mechanical properties while ensuring their electrical conductivity.

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
  • Molybdenum disulfide enhanced ionic conductive hydrogel as well as preparation method and application thereof
  • Molybdenum disulfide enhanced ionic conductive hydrogel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of molybdenum disulfide reinforced high-strength ion-conducting hydrogel is carried out according to the following steps:

[0024] (1) Weigh 35g of distilled water, add 8g of acrylamide, 2g of acrylic acid, 0.05g of N,N methylenebisacrylamide, mix well, stir at room temperature 20-25°C for 30min, then add 5g of molybdenum disulfide to disperse After mixing uniformly, stir for 1 h at room temperature of 20-25 °C, and add 0.1 g of potassium persulfate to obtain molybdenum disulfide / polyacrylamide acrylic hydrogel;

[0025] (2) Immerse the molybdenum disulfide / polyacrylamide acrylic hydrogel in a 0.1 g / mol ferric chloride solution at room temperature of 20-25°C for 12 hours, then take out the above hydrogel and immerse it in an aqueous solution at room temperature of 20-25°C In order to remove unreacted monomers and surface ions, the obtained gel was taken out to obtain molybdenum disulfide reinforced high-strength ionically conductive hydrogel.

Embodiment 2

[0027] A preparation method of molybdenum disulfide reinforced high-strength ion-conducting hydrogel is carried out according to the following steps:

[0028] (1) Weigh 10g of distilled water, add 8g of acrylamide, 2g of acrylic acid, 0.05g of N,N methylenebisacrylamide, mix well, stir at room temperature 20-25°C for 30min, then add 30g of molybdenum disulfide to disperse liquid, mixed evenly, stirred at room temperature of 20-25 °C for 2 hours, and added 0.1 g of potassium persulfate to obtain molybdenum disulfide / polyacrylamide acrylic hydrogel;

[0029] (2) Immerse the molybdenum disulfide / polyacrylamide acrylic hydrogel in a 0.1 g / mol ferric chloride solution at room temperature of 20-25°C for 6 hours, then take out the above hydrogel and immerse it in an aqueous solution at room temperature of 20-25°C In order to remove unreacted monomer and surface ions, the obtained gel was taken out to obtain molybdenum disulfide reinforced high-strength ionically conductive hydrogel. ...

Embodiment 3

[0031] A preparation method of molybdenum disulfide reinforced high-strength ion-conducting hydrogel is carried out according to the following steps:

[0032] (1) Weigh 5g of distilled water, add 8g of acrylamide, 1.5g of acrylic acid, 0.01g of N,N methylenebisacrylamide, mix well, stir at room temperature 20-25℃ for 30min, then add 35g of molybdenum disulfide The dispersion liquid, after mixing evenly, was stirred at room temperature of 20-25°C for 3 hours, and 0.08 g of ammonium persulfate was added to obtain molybdenum disulfide / polyacrylamide acrylic hydrogel;

[0033] (2) Immerse the molybdenum disulfide / polyacrylamide acrylic hydrogel in a 0.02 g / mol ferric chloride solution at room temperature of 20-25°C for 8 hours, then take out the above hydrogel and immerse it in an aqueous solution at room temperature of 20-25°C In order to remove unreacted monomers and surface ions, the obtained gel was taken out to obtain molybdenum disulfide reinforced high-strength ionically co...

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
tensile strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention provides molybdenum disulfide enhanced ionic conductive hydrogel and a preparation method and application thereof.The preparation method comprises the steps that molybdenum disulfide dispersion liquid is added into a mixed solution containing acrylamide, acrylic acid and N, N-methylene bisacrylamide, stirring is conducted for 1-3 h, then persulfate is added into the solution, a reaction is conducted for 4-8 h at the room temperature of 20-25 DEG C, and the molybdenum disulfide enhanced ionic conductive hydrogel is obtained. The molybdenum disulfide / polyacrylamide acrylic acid hydrogel is obtained; the prepared molybdenum disulfide / acrylamide acrylic acid hydrogel is soaked in an ionic solution at the room temperature of 20-25 DEG C for 6-12 h, ionic cross-linked hydrogel is obtained, the prepared ionic cross-linked hydrogel is soaked in distilled water for 24-48 h, unreacted monomers and residual ions on the surface of the hydrogel are removed, and the molybdenum disulfide / acrylamide acrylic acid hydrogel is obtained. Finally, the molybdenum disulfide reinforced ionic conductive hydrogel is obtained. The hydrogel not only has high mechanical performance, but also is endowed with excellent conductivity, and the hydrogel can be widely applied to the fields of conductive materials, flexible wearable materials, sensors and the like.

Description

technical field [0001] The invention relates to the technical field of hydrogels, and more particularly to a molybdenum disulfide-enhanced ion-conducting hydrogel and a preparation method and application thereof. Background technique [0002] Flexible wearable electronics have attracted great attention due to their various potential applications in artificial skin and human motion detection sensors. As a new type of polymer material, conductive hydrogels can convert external mechanical deformations into electrical signals with high electrical conductivity, biocompatibility, softness, and toughness, and thus become potential materials for flexible wearable materials. Conventional conductive hydrogels are formed by adding large amounts of conductive fillers or conductive polymers. However, these fillers and polymers are usually unevenly distributed, resulting in poor mechanical properties, fatigue resistance, ductility, and sensitivity, which would seriously hinder the applic...

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): C08J3/075C08J3/24C08L33/26C08K3/30C08K3/16C08F220/56C08F220/06C08F222/38
CPCC08J3/075C08J3/24C08F220/56C08K3/30C08J2333/26C08K2003/3009C08K3/16C08K2003/162C08F220/06C08F222/385Y02E60/10
Inventor 刘晓非王晶刘宇星王硕刘新乐陈义鹏戚佩瑶
Owner TIANJIN UNIV