A nanoparticle-polymer composite electret film, its preparation method and triboelectric nanogenerator containing the film

A high-molecular polymer and nanogenerator technology, applied in the direction of triboelectric generators, etc., can solve the problems of poor hydrophobicity and reduced electret performance of electret films, and achieve good transparency, high electret performance, and uniform surface. Effect

Active Publication Date: 2021-04-16
BEIJING INST OF NANOENERGY & NANOSYST
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Problems solved by technology

[0005] The invention provides a nanoparticle-polymer composite electret film and a preparation method thereof, which solves the problem in the prior art that the electret performance is reduced due to the poor hydrophobicity of the electret film; the invention also provides a A triboelectric nanogenerator containing the nanoparticle-macromolecular polymer composite electret film, which obviously improves the working performance of the generator

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  • A nanoparticle-polymer composite electret film, its preparation method and triboelectric nanogenerator containing the film
  • A nanoparticle-polymer composite electret film, its preparation method and triboelectric nanogenerator containing the film
  • A nanoparticle-polymer composite electret film, its preparation method and triboelectric nanogenerator containing the film

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[0038] According to one aspect of the present invention, a method for preparing a nanoparticle-polymer composite electret film is provided. For the preparation process, see figure 1 , including the following steps:

[0039] S1, raw material preparation step: preparing nanoparticle dispersion liquid and polymer dispersion liquid;

[0040] S2, uniform dispersion step: mixing the nanoparticle dispersion and the polymer dispersion according to a certain weight ratio, and then uniformly dispersing and recombining to obtain a nanoparticle-polymer composite dispersion; preferably, the nanoparticle dispersion and The polymer dispersion liquid is mixed according to the weight ratio of 1-30%:70-99%.

[0041] S3, film forming step: forming a film of the nanoparticle-polymer composite dispersion on the surface-treated substrate to obtain a film-forming specimen; the substrate can be any commonly used substrate, such as silicon sheet, glass, metal sheet, etc.;

[0042] Drying step: Dry ...

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Abstract

The invention discloses a nanoparticle-high molecular polymer composite electret film, a preparation method thereof and a triboelectric nanogenerator containing the film. According to the preparation method of the present invention, through the steps of raw material preparation, uniform dispersion, film formation and heat treatment, the composite electret film of nanoparticle-high molecular polymer is obtained. The triboelectric nanogenerator according to the present invention contains the nanoparticle-polymer composite electret film according to the present invention.

Description

technical field [0001] The invention relates to the field of electret films, in particular to a nanoparticle-macromolecular polymer composite electret film, a preparation method thereof and a frictional nanogenerator containing the film. Background technique [0002] High molecular polymer (HMPs) electret materials have excellent electret performance and reliable chemical stability, are not easy to react with strong acids, strong alkalis and strong oxidants, and are also very stable for general solvents. At present, the surface morphology of commercial HMPs films is mostly a spider web-like microporous structure, which has a certain waterproof performance, but does not have the superhydrophobic function of moisture-proof and moisture-proof, and the electret performance in water immersion or humid environments is significantly reduced. In addition, due to the limitations of existing film processing conditions, the thickness of commercial films is usually in the range of 30-10...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08K3/08C08L27/18H02N1/04
CPCC08J5/18C08K3/08C08K2003/0831H02N1/04C08L27/18
Inventor 王中林陈宝东张弛周桃
Owner BEIJING INST OF NANOENERGY & NANOSYST
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