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Method for preparing zinc oxide nanometer film carbon fiber piezoelectric material with core-shell structure and application thereof

A zinc oxide nano, core-shell structure technology, applied in the material selection of piezoelectric devices or electrostrictive devices, the manufacture/assembly of piezoelectric/electrostrictive devices, the selection of device materials, etc., can solve the problems that cannot be solved by Used to drive practical equipment, low output and other issues

Inactive Publication Date: 2012-01-11
李泽唐 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the outputs of these two designs are quite low, so they cannot be used to drive practical devices

Method used

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  • Method for preparing zinc oxide nanometer film carbon fiber piezoelectric material with core-shell structure and application thereof
  • Method for preparing zinc oxide nanometer film carbon fiber piezoelectric material with core-shell structure and application thereof
  • Method for preparing zinc oxide nanometer film carbon fiber piezoelectric material with core-shell structure and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0023] Cut three 10cm-long domestic carbon fiber CCF300 tows, remove the sizing agent according to the method in Appendix A of GJ B1982-94, and dry at 50 °C. Mix 1 gram of zinc oxide powder with a purity of 99.9% and 2 grams of activated carbon powder, coarsely grind it for 15 minutes, and then finely grind agate for 30 minutes to make it microscopically mixed. Slowly pour 3 grams of ground mixed zinc oxide carbon powder into the bottom of the quartz tube with one end closed, and add the dried and pretreated carbon fiber tow on the inner wall of the quartz tube; the installed quartz tube is placed in the middle of the vacuum tube furnace. Adjust the air valve of the vacuum pump to slowly evacuate until the vacuum degree is less than 5 millitorr, slowly introduce oxygen with a flow rate of 10ccm and argon gas with a flow rate of 30ccm, and adjust the vacuum degree to 2 Torr; Heat to 850°C, keep it warm for 10 minutes, then raise the temperature to 960°C at a rate of 10°C / min, a...

specific Embodiment approach 2

[0026] Cut two 4cm-long domestic carbon fiber CCF500 tows, remove the sizing agent according to the method in Appendix A of GJB1982-94, and dry at 50°C. Mix 2 grams of zinc oxide powder with a purity of 99.9% and 2 grams of activated carbon powder, and finely grind agate for 20 minutes to make it microscopically mixed. Slowly pour 0.5 g of ground mixed zinc oxide carbon powder into the bottom of the quartz tube with one end closed, and add the dried and pretreated carbon fiber tow on the inner wall of the quartz tube; the installed quartz tube is placed in the middle of the vacuum tube furnace. Adjust the air valve of the vacuum pump to slowly evacuate until the vacuum degree is less than 15 millitorr, slowly introduce oxygen with a flow rate of 8ccm and argon gas with a flow rate of 32ccm, and adjust the vacuum degree to 2..4 Torr; min, heated to 850°C, then raised to 960°C at a rate of 10°C / min, and kept for 45 minutes.

[0027]Making nano piezoelectric devices: Take out th...

specific Embodiment approach 3

[0028] Cut a 5cm-long domestic carbon fiber CCF400 tow, remove the sizing agent according to the method in Appendix A of GJB1982-94, and dry it at 50°C. 5 grams of zinc oxide powder with a purity of 99.9% and 3 grams of activated carbon powder were mixed, and ball milled for 30 minutes to make them microscopically mixed evenly. Slowly pour 1 gram of ground mixed zinc oxide carbon powder into the bottom of the quartz tube with one end closed, and add the dried and pretreated carbon fiber tow on the inner wall of the quartz tube; the installed quartz tube is placed on the left side of the vacuum tube furnace 2cm position. Adjust the air valve of the vacuum pump to slowly evacuate until the vacuum degree is less than 10 mtorr, slowly introduce oxygen with a flow rate of 10ccm and argon gas with a flow rate of 20ccm, and adjust the vacuum degree to 2.2 torr; to 800°C, then raised to 960°C at a rate of 10°C / min, and kept for 30 minutes.

[0029] Production of nano piezoelectric T...

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Abstract

The invention relates to a method for preparing a textured zinc oxide nanowire film, with a core-shell structure, growing on the surface of carbon fiber. The preparing method comprises the following steps of: removing a sizing agent on the surface of the carbon fiber or carbon fiber fabric, mixing zinc oxide powder and active carbon to obtain mixed zinc powder, feeding the mixed zinc powder as a growth source to a sealed tube type furnace, slowly vacuumizing, slowly introducing argon and oxygen mixed gas, heating to 850 DEG C, preserving the heat for 10min, then heating to 960 DEG C and preserving the heat for 30min, and then cooling, wherein the piezoelectric voltage of the zinc oxide film is educed through an electrode between the carbon fiber and the top of the zinc oxide, and the connection between the surface of the zinc oxide film and the electrode is of schottky connection. A device disclosed by the invention can be used as a gas pressure sensor or a pneumatic pressure nano engine of automobile / aircraft tyres. Besides, the device disclosed by the invention can also be used as a self-powered sensor for continuously monitoring pulse condition characteristic regions, such as pulse vibration frequency, pulse amplitude, and the like through a piezoelectric current change curve and provides a support for quantification representation of modern human body internet of things of traditional Chinese medicine.

Description

technical field [0001] The invention belongs to the carbon fiber surface physical synthesis technology, and relates to a core-shell structure-based method for growing textured zinc oxide nanowire films on the surface of carbon fibers and its application in the fields of environment and biomedicine, especially in real-time sensing of pulse information in traditional Chinese medicine. . Background technique [0002] Air pressure force is a very common but very important physical parameter, which affects our daily life in all aspects. From the steam engine in the era of the industrial revolution to the modern internal combustion engine and the current jet aircraft, they are all driven by changes in air pressure caused by airflow. How to use the pressure and flow of air / liquid with low energy density in the environment to collect secondary energy or low-frequency energy is still an important direction for today's new energy technology. However, the pressure in the environment,...

Claims

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Application Information

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IPC IPC(8): H01L41/22H01L41/18H01L41/39
Inventor 王中林李泽唐
Owner 李泽唐
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