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Fibrous Ti3C2 MXene-based torsion angle sensor and preparation method thereof

A technology of torsion angle and sensors, applied in the field of sensors, to achieve the effects of improving economic benefits, convenient synthesis, and good conductivity

Active Publication Date: 2020-10-02
GUANGDE TIANYUN NEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are still new challenges in the development of sensors for torsional deformation

Method used

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  • Fibrous Ti3C2 MXene-based torsion angle sensor and preparation method thereof
  • Fibrous Ti3C2 MXene-based torsion angle sensor and preparation method thereof
  • Fibrous Ti3C2 MXene-based torsion angle sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A fibrous Ti 3 C 2 MXene-based torsional angle sensors, including Ti 3 C 2 / porous fiber composite, Ti 3 C 2 / The two ends of the porous fiber composite are connected to the copper foil with conductive silver glue, and the flexible matrix is ​​infiltrated inside; Ti 3 C 2 / porous fiber composites including Ti 3 C 2 Nanosheets and porous fibrous skeleton, Ti 3 C 2 The nanosheets are supported on the outer surface of the porous fiber skeleton.

[0026] A fibrous Ti 3 C 2 The preparation method of MXene-based torsional angle sensor specifically comprises the following steps:

[0027] Add 5ml of deionized water to a mixture of 15ml of concentrated hydrochloric acid (HCl) and hydrofluoric acid (HF) to dilute it into a 9mol / L acid solution, then slowly add 1g of LiF to 20ml of the acid solution, and keep stirring Until LiF is completely dissolved; then, 1g Ti 3 AlC 2 The powder was slowly added to the above solution several times, and finally stirred and re...

Embodiment 2

[0031] The difference between this embodiment and embodiment 1 is:

[0032] A fibrous Ti 3 C 2 The preparation method of MXene-based torsional angle sensor specifically comprises the following steps:

[0033] Add 5ml of deionized water to 15ml of hydrofluoric acid (HF) to make it diluted to 9mol / L acid solution, then slowly add 1g LiF to 20ml of acid solution, and keep stirring until LiF is completely dissolved; then, 1g Ti 3 AlC 2 The powder was slowly added to the above solution several times, and finally stirred and reacted at a constant temperature of 35°C for 24h to complete the conversion of Ti 3 AlC 2 Etching of Al element in the medium; transfer the etched mixture evenly to two 50ml centrifuge tubes, add deionized water to increase the volume of the mixture to 40ml, and then centrifuge at 5000rpm for 6min to remove the above For impurities in the supernatant, repeat the centrifugal treatment about 5 times until the pH of the supernatant is neutral; then add deio...

Embodiment 3

[0037] The difference between this embodiment and embodiment 1, 2 is:

[0038] A fibrous Ti 3 C 2 The preparation method of MXene-based torsional angle sensor specifically comprises the following steps:

[0039] Add 5ml of deionized water to a mixture of 15ml of concentrated hydrochloric acid (HCl) and hydrofluoric acid (HF) to dilute it into a 9mol / L acid solution, then slowly add 1g of LiF to 20ml of the acid solution, and keep stirring Until LiF is completely dissolved; then, 1g Ti 3 AlC 2 The powder was slowly added to the above solution several times, and finally stirred and reacted at a constant temperature of 35°C for 24h to complete the conversion of Ti 3 AlC 2 Etching of Al element in the medium; transfer the etched mixture evenly to two 50ml centrifuge tubes, add deionized water to increase the volume of the mixture to 40ml, and then centrifuge at 5000rpm for 6min to remove the above For impurities in the supernatant, repeat the centrifugal treatment about 5 t...

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Abstract

The invention relates to a fibrous Ti3C2MXene-based torsion angle sensor and a preparation method of the fibrous Ti3C2MXene-based torsion angle sensor. According to the sensor, a Ti3C2 nanosheet is used as a strain-sensitive material, the strain-sensitive material is assembled on a framework of foam fibers, and a flexible polymer is used as a substrate for providing large deformation, so that thesensor with torsion response characteristics is prepared. The fibrous torsion angle sensor can give torsion angle values corresponding to different rotating speeds by monitoring electric signals undertorsion deformation in real time, and has the characteristics of easiness in preparation, stable performance and recyclability. Due to the fact that the novel two-dimensional nano material Ti3C2 hasgood conductivity and is convenient to synthesize, the novel two-dimensional nano material Ti3C2 can be directly deposited on the surface of the framework of porous fibers in an immersion adsorption self-assembly mode, and the Ti3C2-based flexible porous conductive fiber with torsion angle response is obtained. The structure of the sensor is improved, the performance of the sensor is improved, thesensitivity is good, and the damage resistance is improved.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a fibrous Ti 3 C 2 MXene-based torsion angle sensor and its preparation method. Background technique [0002] Twisting is a ubiquitous movement in everyday life, such as steering systems in vehicles, torque bars in oil exploration, artificial heart monitors, artificial muscles, and rotating parts in robots. Any torsional deformation will be accompanied by the generation of angles, and most angle sensors are complex, rigid, high-cost and bulky (such as ZL2015102087894, ZL2015102764090, etc.). In order to meet the needs of a new generation of flexible angle sensors and to further improve the performance of sensors, new materials with high strain sensitivity have been developed successively. Unlike tensile deformation, which produces a linear strain on an object, torsional deformation causes both normal and shear strains on its surface. Therefore, new challenges still exist in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30B82Y30/00B82Y40/00
CPCG01B7/30B82Y30/00B82Y40/00
Inventor 孟凡成潘建新洪海涛林长浩
Owner GUANGDE TIANYUN NEW TECH
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