Three-dimensional flexible sensor material and preparation method and application thereof

A flexible sensor, three-dimensional technology, applied in the field of sensors, can solve problems such as poor fit and high hardness, and achieve the effects of obvious resistance changes, good flexibility, and wide application prospects

Pending Publication Date: 2022-08-02
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a three-dimensional flexible sensor material and its preparation method and application. The sensor can effectively solve the problems of high hardness and poor fit existing in existing sensors.

Method used

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  • Three-dimensional flexible sensor material and preparation method and application thereof
  • Three-dimensional flexible sensor material and preparation method and application thereof
  • Three-dimensional flexible sensor material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A three-dimensional flexible sensor, the preparation method of which comprises the following steps:

[0038] (1) First, add 1 g of cellulose to 10 mL of water, and disperse it by ultrasonic for 10 minutes; then add 0.1 g of graphene oxide, and disperse it by a high-speed disperser for 30 minutes at a speed of 20,000 rad / min; finally, add 1 g of carbon tube to the solution, Continue to use a high-speed disperser to disperse for 1h, and the rotation speed is 30000rad / min to form printing ink;

[0039] (2) The printing ink obtained in step (1) was placed in a 30CC syringe, a glass plate was used as the receiver and placed on the lower triaxial platform, the printing pressure was set to 30 psi, the diameter of the printing needle was 0.84 mm, and the triaxial platform was set The moving speed is 15mm / min, and the fork-shaped sample is obtained by printing according to the preset program, and the number of printing layers is 2;

[0040] (3) The printed sample obtained in st...

Embodiment 2

[0042] A three-dimensional flexible sensor, the preparation method of which comprises the following steps:

[0043] (1) First, add 1 g of chitosan to 12 mL of water, and use ultrasonic dispersion for 10 minutes; then add 0.2 g of graphene oxide, and use a high-speed disperser to disperse for 30 minutes at a speed of 25,000 rad / min; finally, add 1 g of graphene to the solution. , continue to use a high-speed disperser to disperse for 1h, and the rotation speed is 30000rad / min to form printing ink;

[0044] (2) The printing ink obtained in step (1) is placed in a 30CC syringe, a glass plate is used as the receiver and placed on the lower triaxial platform, the printing pressure is set to 20 psi, the diameter of the printing needle is 0.5 mm, and the triaxial platform is set The moving speed is 15mm / min, and the fork-shaped sample is obtained by printing according to the preset program, and the number of printing layers is 2;

[0045] (3) The printed sample obtained in step (2) ...

Embodiment 3

[0047] A three-dimensional flexible sensor, the preparation method of which comprises the following steps:

[0048] (1) First, add 1 g of sodium alginate to 10 mL of water, and use ultrasonic dispersion for 10 minutes; then add 0.2 g of graphene oxide, and use a high-speed disperser to disperse for 60 minutes at a speed of 20,000 rad / min; finally, add 1.5 g of carbon fiber to the solution. , continue to use a high-speed disperser to disperse for 2h, and the rotation speed is 30000rad / min to form printing ink;

[0049] (2) The printing ink obtained in step (1) is placed in a 30CC syringe, a glass plate is used as the receiver and placed on the lower three-axis platform, the printing pressure is set to 20 psi, the diameter of the printing needle is 1 mm, and the three-axis platform is set to The moving speed is 10mm / min, and the fork-shaped sample is obtained by printing according to the preset program, and the number of printing layers is 2;

[0050] (3) The printed sample obt...

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Abstract

The invention provides a three-dimensional flexible sensor material as well as a preparation method and application thereof, and the preparation method of the sensor material comprises the following steps: adding a conductive agent, a binder and a reinforcing agent into water, and uniformly dispersing to obtain printing ink; the printing ink is made into a device in a 3D printing mode, and then the device is soaked in a cross-linking agent solution; and drying the device containing the cross-linking agent in a freeze-drying manner to obtain the cross-linking agent. The flexible sensor can effectively solve the problems that an existing sensor is large in hardness and poor in fitting degree.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a three-dimensional flexible sensor material and a preparation method and application thereof. Background technique [0002] A sensor is a device that converts non-electrical signals into electrical signals, and is a "sensory organ" in modern life. It is widely used in various fields of life, including automobiles, household appliances, environmental protection, entertainment facilities, etc., and plays an important role. [0003] Bone is an important part of the human body, and it plays the functions of protection, support, hematopoiesis, and movement in the human body. Among all the skeletal joints in the human body, the knee joint is a large and complex flexion joint of the human body. It bears a lot of force, has a stable and flexible structure, completes the load-bearing transfer of the human body, and plays an important role in the movement of the human body. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/00H01B5/14H01B13/00A61B5/00A61B5/107A61B5/11B29C64/112B33Y10/00
CPCH01B5/00H01B5/14H01B13/0026A61B5/1071A61B5/1121A61B5/4585A61B5/4528B29C64/112B33Y10/00
Inventor 刘警峰张楚虹何菡娜孙淑娴曾丽凌尚文
Owner SICHUAN UNIV
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