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Single piezoelectric fiber filament and preparation method thereof

A piezoelectric fiber, a single technology, applied in the spinning field, can solve the problems of unsustainable power supply, small power supply capacity, etc., and achieve the effect of excellent heat resistance

Inactive Publication Date: 2018-12-18
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the technical problem that the power supply capacity of portable smart devices is small and cannot supply power for a long time, the present invention provides a single piezoelectric fiber filament and its preparation method. The technical solution is as follows:

Method used

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  • Single piezoelectric fiber filament and preparation method thereof
  • Single piezoelectric fiber filament and preparation method thereof
  • Single piezoelectric fiber filament and preparation method thereof

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preparation example Construction

[0026] figure 1 It is a method flowchart of a method for preparing a single piezoelectric fiber shown according to an exemplary embodiment, such as figure 1 Shown, the preparation method of described piezoelectric fiber silk comprises:

[0027] Step 101, dissolving 1.8g of PVDF powder in 6g of N,N-dimethylformamide in a reaction vessel to obtain a mixed solution.

[0028] Step 102, putting magnets into the mixed solution in the reaction vessel, and then sealing the reaction vessel.

[0029] For example, the reaction container may be a reagent bottle, a three-necked flask or the like.

[0030] The operation of the sealing treatment may be to seal the container mouth of the reaction container with a plastic wrap, or to seal the container port of the reaction container with a sealing cap.

[0031] Step 103, slowly heating the mixed solution in the sealed reaction vessel to 70° C., stirring with a magnetic stirrer for 6 hours, and then standing to cool to room temperature.

[...

Embodiment 1

[0045]Weigh 1.8g of PVDF powder with a balance, and measure 6g of N,N-dimethylformamide (0.945-0.950g / ml) with a measuring cup, dissolve 1.8g of PVDF powder in 6g of N,N-dimethylformamide in the reagent bottle base formamide to obtain a mixed solution; put a magnet into the mixed solution in the reagent bottle, and then seal the reagent bottle; slowly heat the mixed solution in the sealed reagent bottle to 70°C, and use A magnetic stirrer was stirred for 6 hours, then left to cool to room temperature; 4g acetone (0.79g / ml) was added to the cooled mixed solution to prepare a PVDF solution with a concentration of 18%; the PVDF solution was used as a spinning solution. The silk liquid is sent to the electrospinning device for electrospinning, and a single piezoelectric fiber is prepared. The spinning voltage used in the electrospinning process is 4KV, and the spinning speed is 0.1mm / min. The single piezoelectric fiber is made of Roller collection, the receiving distance is 15mm, ...

Embodiment 2

[0047] Weigh 1.8g of PVDF powder with a balance, and measure 6g of N,N-dimethylformamide (0.945-0.950g / ml) with a measuring cup, dissolve 1.8g of PVDF powder in 6g of N,N-dimethylformamide in the reagent bottle base formamide to obtain a mixed solution; put a magnet into the mixed solution in the reagent bottle, and then seal the reagent bottle; slowly heat the mixed solution in the sealed reagent bottle to 70°C, and use A magnetic stirrer was stirred for 6 hours, then left to cool to room temperature; 4g acetone (0.79g / ml) was added to the cooled mixed solution to prepare a PVDF solution with a concentration of 18%; the PVDF solution was used as a spinning solution. The silk liquid is sent to the electrospinning device for electrospinning, and a single piezoelectric fiber is prepared. The spinning voltage used in the electrospinning process is 4.5KV, and the spinning speed is 0.1mm / min. Collected by the drum, the receiving distance is 15mm, the direction of the spinning elect...

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Abstract

The invention discloses a single piezoelectric fiber filament and a preparation method thereof, and belongs to the technical field of spinning. According to the single piezoelectric fiber filament andthe preparation method thereof, PVDF, N, N-dimethylformamide and acetone are used as raw materials; a PVDF solution with a concentration of 18% was prepared as a spinning solution; in spinning processes, according to characteristics of the spinning solution, a low spinning voltage and a short spinning distance are selected, so that an electric field is consistent with the direction of the singlepiezoelectric fiber filament, and a PVDF single piezoelectric fiber filament having a distinct beta crystal phase is prepared. Because a beta crystal form is the best crystal form in terms of heat resistance and piezoelectric properties and dielectric properties, the single piezoelectric fiber filament with excellent heat resistance and piezoelectric properties and dielectric properties can be manufactured on a large scale through the preparation method disclosed in the invention via simple and efficient manufacture technologies; the single piezoelectric fiber filament can be applied to a portable and wearable device, the possibility of long-term power supply for the portable and wearable device is provided, and the single piezoelectric fiber filament and the preparation method thereof areadvantaged by cleanness and energy saving performance.

Description

technical field [0001] The invention relates to a single piezoelectric fiber filament and a preparation method thereof, belonging to the technical field of spinning. Background technique [0002] With the development of the times and the advancement of science and technology, the portable smart device industry has gradually emerged, showing the characteristics of miniaturization of the system and complex functions as a whole. Due to their small size and easy portability, portable smart devices are deeply loved by the younger generation. [0003] The power supply of existing portable smart devices is often based on batteries. Due to the relative lag in the development of battery technology, the power supply has heavy quality, large volume, low energy density, poor durability of power supply, serious environmental pollution and large consumption of material resources. Disadvantages, unable to meet the growing needs of personal portable electronic products, and in the near fut...

Claims

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Application Information

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IPC IPC(8): D01D5/00
CPCD01D5/003D01D5/0076
Inventor 杨恩龙史晶晶易洪雷
Owner JIAXING UNIV
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