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A kind of liquid metal hydrogel and its preparation method and application

A liquid metal and hydrogel technology, applied in electromagnetic measuring devices, electric/magnetic solid deformation measurement, etc., can solve the problems of long curing time, short curing time, slow reaction speed, etc., and achieve excellent mechanical properties and short curing time Effect

Active Publication Date: 2022-05-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problems of slow reaction speed and long curing time in the existing hydrogel preparation method, the present invention provides a liquid metal hydrogel with fast reaction speed and short curing time and its preparation method and application

Method used

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  • A kind of liquid metal hydrogel and its preparation method and application
  • A kind of liquid metal hydrogel and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh gallium indium alloy (EGaIn) liquid metal 100mg, graphene oxide (GO) 50mg in a 50ml screw bottle, add 25ml of water as a solvent. The resulting mixture was ultrasonically broken at 200W power for 5 min to obtain a homogeneous and stable solution. Weigh 15ml acrylic acid (AA) monomer in the above mixed solution, stir for 20s and then let the reaction stand, after 10min can get the cured finished hydrogel material.

Embodiment 2

[0026] Weigh gallium indium alloy (EGaIn) liquid metal 100mg, dopamine-coated graphene oxide (GO-PDA) 50mg in a 50ml screw flask, add 25ml of water as solvent. The resulting mixture was ultrasonically broken at 200W power for 5 min to obtain a homogeneous and stable solution. Weigh 15ml acrylic acid (AA) monomer in the above mixed solution, stir for 20s and then let the reaction stand, after 10min can get the cured finished hydrogel material.

Embodiment 3

[0028] Weigh gallium indium tin alloy (EGaInSn) liquid metal 200mg, fluorinated graphene oxide (GO-F) 50mg in a 50ml screw bottle, add 25ml of water as a solvent. The resulting mixture was sonicated at 250W power for 3 min to obtain a homogeneous and stable solution. Weigh 15ml acrylamide (AM) monomer in the above mixed solution, stir for 20s and then let the reaction stand, after 10min can get the cured completed hydrogel material.

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Abstract

The invention relates to a liquid metal hydrogel and its preparation method and application, which solves the technical problems of slow reaction speed and long curing time in the existing hydrogel preparation method, and contains the following components in mass percentage: polymer 20% to 60%, initiator 0.2% to 5%, catalyst 0.04% to 1%, and the balance is water. The invention also provides its preparation method and application. The invention can be used in the field of preparation of hydrogel materials.

Description

Technical field [0001] The present invention relates to a hydrogel and a preparation method and application thereof, in particular, to a liquid metal hydrogel and a preparation method and application thereof. Background [0002] With the rapid development of electronic technology, more and more electronic devices are developing in the direction of miniaturization, flexibility and wearability. Flexible wearable devices have received widespread attention and research in various fields, including energy storage devices, human motion detection, health care, artificial intelligence, soft robots and other aspects have shown great market potential. Among them, the flexible wearable sensors for artificial intelligence and health monitoring have become a hot spot for researchers with their high sensitivity, fast response, portability, and comfort of use, which has stimulated researchers at home and abroad to research and develop flexible wearable electronic sensors. [0003] Hydrogel is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/06C08F120/56C08F2/44C08K3/08C08K3/04C08K9/10G01B7/16
CPCC08F120/06C08F120/56C08F2/44C08K3/08C08K3/042C08K9/10C08K9/08G01B7/18
Inventor 隋刚苏尧天杨小平
Owner BEIJING UNIV OF CHEM TECH