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Method for preparing self-supporting conductive polymer film and composite film and application

A technology of conductive polymer and polymer film, applied in cable/conductor manufacturing, conductor, circuit and other directions, can solve the problems of complex preparation process, high substrate requirements, film thickness and morphology cannot be accurately controlled, etc. Controllable effect

Inactive Publication Date: 2010-06-16
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process is complicated, the requirements for the substrate are high, and the thickness and shape of the film cannot be accurately controlled

Method used

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  • Method for preparing self-supporting conductive polymer film and composite film and application
  • Method for preparing self-supporting conductive polymer film and composite film and application
  • Method for preparing self-supporting conductive polymer film and composite film and application

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preparation example Construction

[0017] In order to overcome the defects in the preparation of traditional conductive polymer films, the present invention conceives and provides a method for preparing self-supporting conductive polymer films and composite films, and creates a novel and simple preparation method for the application of conductive polymer films . The detailed process can include the following steps:

[0018] 1) if figure 1 The simulation schematic diagram of the self-supporting conductive polymer film preparation method shown shows that in the ionic liquid 4 containing the conductive polymer monomer 2, the gas-liquid two-phase interface or the liquid-liquid two-phase interface spontaneously grows to prepare a uniform self-supporting conductive film. The polymer film 1 can control the surface smoothness and thickness of the film by changing the reaction conditions. At the same time, a film with a porous structure can also be prepared, which is the basic feature of the method of the present inve...

Embodiment 1

[0026] Dissolve 43.8 mg of surfactant Brij35 in 1 mL of ionic liquid 1-Ethyl-3-methylimidazolium tetrafluoroborate, then add 0.5 mL of pyrrole 2 into it and stir for a while, then add a small amount of CuCl 2 After shaking, let it stand for 10 minutes, then add the insoluble CuCl 2 Filter off, and the filtrate is placed in a watch glass and allowed to stand for a period of time. Place the watch glass in distilled water, grow a polypyrrole film on the surface of the ionic liquid and float on the water surface, and take it out to obtain the polypyrrole film.

Embodiment 2

[0028] Dissolve 43.8 mg of surfactant Brij35 in 1 mL of ionic liquid 1-Ethyl-3-methylimidazolium tetrafluoroborate, then add ZnO nanoparticles, disperse the system uniformly, add 0.5 mL of pyrrole 2, stir for a while, add a small amount of CuCl 2 After shaking, let it stand for 10 minutes, then add the insoluble CuCl 2 Filter off, and the filtrate is placed in a watch glass and allowed to stand for a period of time. Place the watch glass in distilled water, grow a polypyrrole film on the surface of the ionic liquid and float on the water surface, and take it out to obtain a polypyrrole composite film doped with ZnO nanoparticles.

[0029] In summary, the two sides of the conductive polymer film prepared by the method of the present invention can be uniform, symmetrical, or asymmetrical, one side is smooth, the other side is rough and the thickness is controllable (from tens of nanometers to several microns), and the area is not large. limit (such as figure 2 and image 3 s...

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Abstract

The invention discloses a method for preparing a self-supporting conductive polymer film and a composite film and application. The preparation environment for the polymer film and the composite film is a gas-liquid two-phase interface or a liquid-liquid two-phase interface, and the polymer film or the composite film with self-supporting conductivity is formed through autonomic growth on a gas ionic liquid interface or a liquid ionic liquid interface or by doping an inorganic nano material in the growth process. The self-supporting conductive polymer film with symmetrical two surfaces, evenness and controllable thickness or asymmetrical two surfaces is prepared through the autonomic growth of the interface and the one-step method. The method can effectively overcome the defects of complex and fussy process, high dependence on a conductive or non-conductive substrate, poor controllability and the like in the traditional method for chemically oxidizing or electrochemically preparing the conductive polymer film, particularly the self-supporting conductive polymer film. The method is simple and convenient, is easy to operate and has strong controllability. Meanwhile, the technology can easily perform functional modification on the preparing or prepared conductive polymer film.

Description

technical field [0001] The invention relates to a novel and simple method for preparing a self-supporting conductive polymer film and a composite film thereof, belonging to the field of material preparation technology development. Background technique [0002] Conductive polymers have potential applications in sensors, solar cells, electrode materials, solid capacitors, and electromagnetic shielding materials due to their high conductivity, stability, easy doping, and special optical, electrical, and acoustic properties. In recent years, it has received extensive attention and research interest from researchers. These applications all require the preparation of thin films of conducting polymers. The traditional preparation of conductive polymer films mainly includes chemical oxidative polymerization and electrochemical polymerization. Both methods deposit the polymer onto a conductive or non-conductive substrate. To obtain a self-supporting film, it is necessary to peel o...

Claims

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Application Information

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IPC IPC(8): C08J5/18H01B5/00H01B13/00A61L27/14
Inventor 靳健王栋何晓东
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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