Preparation method and application of piezoelectric-triboelectric coupling induction material

An induction material, triboelectric technology, applied in triboelectric generators, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc., can solve the problem of low force/electricity conversion efficiency and low output amplitude and other problems, to achieve the effect of high output conversion performance, wide response range and high sensitivity

Active Publication Date: 2022-05-27
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the piezoelectric-triboelectric coupled nanogenerators in the prior art have low electrical output amplitude and low power / electric conversion efficiency, and there are still some problems.

Method used

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  • Preparation method and application of piezoelectric-triboelectric coupling induction material
  • Preparation method and application of piezoelectric-triboelectric coupling induction material
  • Preparation method and application of piezoelectric-triboelectric coupling induction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] S1: Add 2 g of CTS to 87.5 g of acetic acid-water solution with a concentration of 1.5% and stir magnetically at room temperature until completely dissolved. Then, 10g HPC was slowly added to the above solution in 5 times every 30min, ultrasonic treatment was carried out at room temperature, the solution was allowed to stand at 10 °C for 6h, and 0.5g of CNT was taken out and placed at room temperature. After magnetic stirring for 3h, Let stand for 24h at room temperature, and then perform centrifugal degassing, the centrifugal degassing conditions are 10kpm, 30min, to obtain HPC / CTS / CNT solution;

[0040] S2: The HPC / CTS / CNT solution obtained in S1 was uniformly cast on a smooth and flat PTFE substrate. The surface of the solution after casting should be parallel to the substrate, and then slowly placed in an oven with a temperature of 55 °C for 8 hours. The water was lost until a film was formed by casting. After standing at room temperature for 2 h, the film was remov...

Embodiment 2

[0044] S1: Add 5 g of CTS to 85 g of acetic acid-water solution with a concentration of 0.5%, and stir magnetically for 30 min at room temperature until completely dissolved. Then, 9g HPC was slowly added to the above solution 9 times every 15min, and sonicated at room temperature until the concentration reached 9%. , after magnetic stirring for 2h, stand at room temperature for 30h, and then perform centrifugal degassing, the centrifugal degassing condition is 8kpm, 30min, to obtain HPC / CTS / CNT solution;

[0045] S2: The HPC / CTS / CNT solution obtained in S1 was uniformly cast on a smooth and flat PTFE substrate. The surface of the solution after casting should be parallel to the substrate, and then slowly placed in an oven at 50 °C for 12 hours. The water was lost until the film was cast, and then the film was taken off after standing at room temperature for 1 h and polarized at a voltage of 8 kV for 360 min to obtain a triboelectric positive electrode of piezoelectric-triboel...

Embodiment 3

[0049] The preparation method of piezoelectric-triboelectric coupling induction material includes the following steps:

[0050] S1: Add 3 g of CTS to 84.2 g of acetic acid-water solution with a concentration of 1.0%, and stir magnetically for 45 min at room temperature until completely dissolved. Then 12g HPC was slowly added to the above solution every 20min in 6 times, sonicated at room temperature until the concentration reached 12%, the solution was allowed to stand at 5°C for 4h, taken out and placed at room temperature and then added 0.8g of HPC CNT, after magnetic stirring for 6h, stand at room temperature for 27h, and then perform centrifugal degassing, centrifugal degassing conditions are 12kpm, 15min, to obtain HPC / CTS / CNT solution;

[0051] S2: The HPC / CTS / CNT solution obtained in S1 was uniformly cast on a smooth and flat PTFE substrate. The surface of the solution after casting should be parallel to the substrate, and then slowly placed in an oven at 55 °C for 6 h...

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Abstract

The invention discloses a preparation method and application of a piezoelectric-triboelectric coupling induction material, and the preparation method comprises the following steps: S1, dissolving hydroxy propyl cellulose, chitosan and carbon nanotubes in an acidic solution to prepare a hydroxy propyl cellulose/chitosan/carbon nanotube solution; and S2, casting the hydroxy propyl cellulose/chitosan/carbon nanotube solution on a polytetrafluoroethylene substrate, and drying to obtain the piezoelectric-triboelectric coupling sensing material. According to the sensing material, the HPC, the CTS and the CNT are adopted to prepare the positive electrode of the piezoelectric-triboelectric coupling sensing material through a tape casting method, and a film with piezoelectric performance is also prepared, so that the sensing material has excellent mechanical performance and signal conversion performance.

Description

technical field [0001] The present invention relates to piezoelectric-triboelectric coupling induction materials, in particular, to a preparation method and application of piezoelectric-triboelectric coupling induction materials. Background technique [0002] At present, the intensifying energy shortage problem and the huge power consumption caused by people's high dependence on smart electronic products, the conflict between the collision between the two has promoted the research on various sustainable alternative clean energy sources, such as wind energy. , geothermal energy, biological energy, mechanical energy, nuclear energy, etc., are widely concerned because of their green environmental protection and recyclable characteristics. Among them, mechanical energy has great potential because of its wide range of divisions in the environment, rich and diverse forms, almost unaffected by the external environment, and energy-dense and easy to collect. In recent years, researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L1/28C08L5/08C08K3/04H02N1/04H02N2/18
CPCC08J5/18H02N1/04H02N2/18C08J2301/28C08J2405/08C08K3/041C08K2201/011
Inventor 沈晓萍孟庆雨金雯静温宏宇孙庆丰
Owner ZHEJIANG FORESTRY UNIVERSITY
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