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PVDF@kuast-8 nanofiber composite film for triboelectric nanogenerator and preparation method thereof

A KUAST-8, nanogenerator technology, applied in the directions of triboelectric generator, fiber processing, fiber chemical characteristics, etc., can solve the problems of few reports on the application of triboelectric nanogenerator, and achieve easy industrialized production, simple preparation method, good practical effect

Active Publication Date: 2021-03-23
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the application of MOFs in the field of triboelectric nanogenerators has been rarely reported.

Method used

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  • PVDF@kuast-8 nanofiber composite film for triboelectric nanogenerator and preparation method thereof
  • PVDF@kuast-8 nanofiber composite film for triboelectric nanogenerator and preparation method thereof
  • PVDF@kuast-8 nanofiber composite film for triboelectric nanogenerator and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] 9 mg of KUAST-8 powder was added to 3.28 mL of acetone and sonicated for 1 h to form a homogeneous suspension A. Solution B was prepared by dissolving 1.8 g of PVDF in 5 mL of DMF at 65°C. Subsequently, the above-mentioned suspension A and solution B were mixed and stirred uniformly to prepare spinning solution C. Fill the spinning solution C into a 10 mL syringe and install it on the propulsion pump, the propulsion rate is set to 20 μL / min, the distance between the syringe tip and the collecting plate is fixed at 15 cm, the applied voltage is set to 18 kV, and the spinning time is 30min, finally obtained the PVDF nanofiber composite film (thickness is 100μm) that has added KUAST-8, and its microscopic appearance is as follows figure 1 shown. Subsequently, the resulting nanofiber composite film was cut into 2 × 3 cm 2 Then use double-sided tape to paste aluminum foil on one side of the film as an electrode and use copper conductive glue to draw the current to obtain ...

Embodiment 2

[0039] 9 mg of KUAST-8 powder was added to 3.28 mL of acetone and sonicated for 30 min to form a homogeneous suspension A. Solution B was prepared by dissolving 1.8 g of PVDF in 5 mL of DMF at 65°C. Subsequently, the above-mentioned suspension A and solution B were mixed and stirred uniformly to prepare spinning solution C. Fill the spinning solution C into a 10 mL syringe and install it on the propulsion pump, the propulsion rate is set to 20 μL / min, the distance between the syringe tip and the collecting plate is fixed at 15 cm, the applied voltage is set to 18 kV, and the spinning time is 30min. The reduction of ultrasonic time affects the dispersion of F-MOF powder in acetone, which makes it difficult to uniformly disperse F-MOF in PVDF in the spinning solution, resulting in difficulty in forming nanofibers during the spinning process and failing to successfully prepare nanofiber composites. film.

Embodiment 3

[0041] 90 mg of KUAST-8 powder was added to 3.28 mL of acetone and sonicated for 1 h to form a homogeneous suspension A. Solution B was prepared by dissolving 1.8 g of PVDF in 5 mL of DMF at 65°C. Subsequently, the above-mentioned suspension A and solution B were mixed and stirred uniformly to prepare spinning solution C. Fill the spinning solution C into a 10 mL syringe and install it on the propulsion pump, the propulsion rate is set to 20 μL / min, the distance between the syringe tip and the collecting plate is fixed at 15 cm, the applied voltage is set to 18 kV, and the spinning time is After 30 minutes, a PVDF nanofiber composite film (100 μm in thickness) added with KUAST-8 was finally obtained. Subsequently, the resulting composite nanofiber film was cut into 2 × 3 cm 2 Then use double-sided tape to paste aluminum foil on one side of the film as an electrode and use copper conductive glue to draw the current to obtain the negative electrode of the friction nanogenerato...

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Abstract

The present invention discloses a PVDF@KUAST-8 nanofiber composite film for a friction nanogenerator and a preparation method of the film. The preparation method comprises the following steps of adding KUAST-8 powder into acetone and ultrasonically forming suspension liquid A, dissolving PVDF in DMF to prepare a solution B, and uniformly mixing the suspension liquid A and the solution B to preparea spinning solution C; and loading the spinning solution C into an injector for electrostatic spinning to obtain the film. The invention also provides the PVDF high-performance friction nanogeneratorprovided with a fluorine-containing metal organic framework material and obtained by the PVDF@KUAST-8 nanofiber composite film for the friction nanogenerator and the preparation method of the film. The PVDF@KUAST-8 nanofiber composite film improves the output power density of PF-TENG, can directly collect and convert low-frequency mechanical energy in the environment into electric energy, and isan environment-friendly energy device.

Description

technical field [0001] The invention belongs to the field of preparation of new energy devices-friction nanogenerators, and in particular relates to a PVDF@KUAST-8 nanofiber composite film for frictional nanogenerators and a preparation method thereof. Background technique [0002] In recent years, triboelectric nanogenerators (TENGs) have developed rapidly in many fields such as the Internet of Things, self-powered sensors, and wearable power sources. However, the low output power density is still one of the major obstacles for the widespread application of TENGs. TENG converts mechanical energy into electrical energy through the coupling of triboelectricity and electrostatic induction. This process is affected by triboelectric materials and device structures [Wang Z.L., et al. Nano Energy, 2012, 1, 328]. Therefore, researchers have explored various methods to increase the output power density of devices, including material surface modification, designing different device ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01F1/10D01F6/48D04H3/009D04H3/03H02N1/04
CPCD01D5/003D01D5/0092D01F1/10D01F6/48D04H3/009D04H3/03D10B2321/042H02N1/04
Inventor 郭隐犇陈子曦曹宇乐
Owner SHANGHAI UNIV OF ENG SCI
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