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Preparation method and application of a kind of micro-nano structure thin film

A micro-nano structure and thin film technology, applied in nanotechnology, nanotechnology, devices for coating liquid on surfaces, etc., can solve the problems of inability to prepare friction materials in large quantities or low yield of electrode materials, and save production. cost, improved yield, and the effect of tight connection

Active Publication Date: 2021-01-19
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a preparation method and application of a micro-nano structure film, which is used to solve the problem of inability to prepare friction materials or electrode materials in large quantities and large areas in the prior art, and low yield. And other issues

Method used

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  • Preparation method and application of a kind of micro-nano structure thin film
  • Preparation method and application of a kind of micro-nano structure thin film
  • Preparation method and application of a kind of micro-nano structure thin film

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Embodiment 1

[0052]In this embodiment, a PTFE film with a micro-nano structure is prepared by means of air pressure atomization spraying, and the main production steps are as follows, as figure 1 Shown:

[0053] First, configure a certain proportion of PTFE prepolymerization solution 6: disperse tetrafluoroethylene into a concentrated solution (prepolymerization solution) in a nonionic surfactant after polymerization, and the polytetrafluoroethylene solid content is 60wt%;

[0054] Then, the pre-polymerization liquid is injected into the spray gun 7, the spray gun bore is 1mm, and the spray gun pressure is set to 3 MPa;

[0055] Then, the configured PTFE prepolymer solution 6 is spray-coated on the surface of the substrate or electrode layer (for example, ITO / PET substrate);

[0056] Finally, heat and solidify to form a film (100 degrees centigrade oven, 120 minutes stand still), according to the PTFE thin film scanning electron micrograph that this method prepares has micro-nano structur...

Embodiment 2

[0058] In this embodiment, a spray gun high-pressure atomization spraying (air pressure atomization spraying) method is used to prepare a silk protein film with a micro-nano structure. The main production steps are as follows:

[0059] First, configure a certain proportion of silk protein prepolymerization solution (sericin powder: water, mass ratio 20:100);

[0060] Then, inject the prepolymer liquid into the spray gun, the spray gun diameter is 1mm, and the spray gun pressure is set to 2.4 MPa;

[0061] Next, spray the configured silk protein solution on the surface of the electrode layer (for example, copper film);

[0062] Finally, heat and solidify to form a film (80 degrees Celsius oven, 30 minutes to stand), the scanning electron microscope photo of the silk protein film with micro-nano structure prepared according to this method is as follows: Figure 4 and Figure 5 shown.

Embodiment 3

[0064] In this embodiment, the conductive ink of poly(3,4-ethylenedioxythiophene / polystyrene sulfonic acid (PEDOT:PSS)) is prepared by spray gun high-pressure atomization spraying (pneumatic atomization spraying) or electrostatic spraying, mainly The production steps are as follows:

[0065] First, configure a certain ratio of PEDOT:PSS solution,

[0066] Then, inject the spray gun, and then spray the configured PEDOT:PSS solution on the surface of the substrate or electrode layer,

[0067] Finally, it is heated and cured to form a film.

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Abstract

The invention provides a preparing method and application for a micro-nano structural thin film. The micro-nano structural thin film is prepared and obtained by adopting a spray gun spraying mode. The method is in an air-pressure type atomized spraying mode or an electro-static spraying mode, one side of a base is evenly coated with pre-polymerization liquid of a material to be sprayed, after heating and solidifying for a certain time are conducted, a material with micro-nano structural thin film is formed at the side coated with the material, the material has not only huge specific surface area, but also tightly connects with a base material at the same time, and falling-off is not likely to occur. According to the preparing method and application for the micro-nano structural thin film, the step is simple, meanwhile, cost is low, the requirement for equipment is not high, and the preparing method and application for the micro-nano structural thin film is suitable for large-area, mass and large-scale preparation. The method can be used for preparing thin films comprising friction materials such as silk protein, polydimethylsiloxane, and polytetrafluoroethylene and electrode materials, and performance of products such as nano-generators and self-electricity-generating pressure sensors based on the friction electricity-generating principle is significantly enhanced.

Description

technical field [0001] The invention relates to the field of thin film technology, in particular to a preparation method and application of a micro-nano structured thin film. Background technique [0002] Frictional nanogenerator is an energy harvesting device that relies on the mutual coupling of frictional power generation and electrostatic induction to convert external mechanical energy into electrical energy. The triboelectric effect is the result of mutual transfer of charges with different polarities on the surface of organic materials or inorganic materials. In a closed loop, the opposite transfer directions of different charges promote the generation of loop current. [0003] In recent years, research on the preparation methods of triboelectric nanogenerator materials has emerged in an endless stream. According to different processes, they can be divided into: electrospinning method, plasma etching method, and soft etching method. [0004] Electrospinning is a proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/02B05D1/04B82Y30/00B82Y40/00
CPCB05D1/02B05D1/04B82Y30/00B82Y40/00H02N1/04
Inventor 周晓峰向成豪刘超然车录锋
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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