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Preparation method and device of carbon nanotube/conductive polymer composite material

A technology of conductive polymers and carbon nanotubes, applied in the field of nanomaterials, can solve the problems of high equivalent internal resistance of electrode materials, restricting the development and industrialization of composite materials, and hindering the practical application of carbon nanotube composite materials, etc., to achieve rich Effects of economic value, efficiency improvement and cost reduction

Active Publication Date: 2020-09-22
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Carbon nanotube / polypyrrole composite materials also have certain disadvantages as capacitors. For example, when polypyrrole and carbon nanotubes are combined, it is very easy to fill the original pores of the carbon nanotube network due to the volume effect, resulting in the equivalent internal capacity of the electrode material. high resistance
However, so far, the preparation methods of carbon nanotubes / conducting polymer composites (including composite films and composite fibers) mainly use the means of subsequent processing and compounding of various carbon nanotubes, and the existing technology is difficult to be based on the directly prepared Untreated carbon nanotubes can directly prepare continuous carbon nanotubes / conductive polymer composites. This situation undoubtedly restricts the development and industrialization of this composite material, and hinders the development of carbon nanotubes and this composite material. Practical applications, including electrodes, energy storage devices, new batteries, sensors, molecular electronic devices, optical devices, semiconductor devices, invisible materials, flexible devices, wearable devices, etc.

Method used

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  • Preparation method and device of carbon nanotube/conductive polymer composite material
  • Preparation method and device of carbon nanotube/conductive polymer composite material
  • Preparation method and device of carbon nanotube/conductive polymer composite material

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preparation example Construction

[0046] figure 1 It is a schematic flow chart of a method for preparing a carbon nanotube / conductive polymer composite material according to the present invention. Such as figure 1 Shown, the present invention provides a kind of preparation method of carbon nanotube / conductive polymer composite material (comprising composite film, composite strip and composite fiber), comprises the following steps:

[0047] Based on the continuous preparation of carbon nanotubes, the introduction of polymer monomers or conductive polymers;

[0048] Continuously react and continuously compound the continuously prepared carbon nanotubes with polymer monomers or with conductive polymers;

[0049] Control the process of continuous reaction and continuous compounding of carbon nanotubes with polymer monomers or conductive polymers, and regulate the actual reaction time with polymer monomers or the compounding amount of conductive polymers;

[0050] The product is collected continuously to obtain ...

Embodiment 1

[0123] Such as image 3 shown in image 3 Among them, 31 is the outlet of the direct method preparation system of the continuous carbon nanotube film, 32 is the lead-out direction of the continuous carbon nanotube film in the preparation system 1, 33 is the continuous carbon nanotube film, and 4 is the unwinding roller (including the flexible substrate) , can also be used as a guide roller (without substrate), 5 is a reaction vessel (such as: glass reaction tank), 6 is a reaction solution (such as: containing polymer monomer), 7 is an oxidant introduction device (such as: a peristaltic pump), 8 is an oxidant, 9 is a conduit, 10 is a nozzle, 11 is a paper brush, and 12 is a product, namely a composite film. The composite film is collected with a collection system.

[0124] 1) Prepare system 1 by inflation aerosol method, such as image 3 As shown, a continuous carbon nanotube film 33 with a diameter of 0-100 mm is obtained at the outlet end driven by the carrier gas. Optiona...

Embodiment 2

[0140] Figure 4 It is a schematic diagram of the continuous preparation method and device of the carbon nanotube / conductive polymer composite material in one embodiment of the present invention. exist Figure 4 Among them, 41 is the carbon nanotube array used for the system of indirect preparation of continuous carbon nanotube film by array wire drawing method, 42 is the pulling direction of the continuous carbon nanotube film in 41, 43 is the continuous carbon nanotube film prepared by indirect method, 4 It is an unwinding roller (including a flexible substrate, the material is not limited; the conductivity is not limited, that is, an insulator or a conductor), and it can also be used as a guide roller (excluding the substrate). 5 is a reaction container (such as: a glass reaction tank), 6 Reaction solution (such as: containing polymer monomer), 7 is an oxidizing agent introduction device (such as: peristaltic pump), 8 is an oxidizing agent, 9 is a conduit, 10 is a nozzle, ...

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Abstract

The invention provides a method and device for preparing carbon nanotube / conductive polymer composite materials and relates to the field of a nano material and the preparation technology thereof. Themethod comprises steps that a polymer monomer or a conductive polymer is introduced based on continuously-prepared carbon nanotubes; the continuously-prepared carbon nanotubes are made to continuouslyreact with and further compounded with the polymer monomer or with the conductive polymer; the process that the continuously-prepared carbon nanotubes are made to continuously react with and furthercompounded with the polymer monomer or with the conductive polymer is controlled, and the actual reaction time with the polymer monomer or the composite amount of the conductive polymer is further regulated; continuous collection of products is performed to obtain the continuous carbon nanotube / conductive polymer composite materials. The method is advantaged in that the carbon nanotube / conductive polymer composite materials can be continuously and directly prepared, and properties of flexible property, self supporting, high conductivity and high electrochemical activity are further achieved.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a method and device for preparing a carbon nanotube / conductive polymer composite material. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, have the dual advantages of high specific power of capacitors and high specific energy of batteries. At the same time, they also have the characteristics of high charge and discharge efficiency and long working life. They are widely used in hybrid vehicles, radars, and communications. It has important applications in large-scale energy storage systems such as station backup power supplies. Carbon nanotube films have high electronic conductivity and large specific surface area, and can be directly used as electrode materials for supercapacitors. Due to the excellent mechanical properties of the film itself, the conductivity can be kept basically unchanged when subjected to 5% tensile deforma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/36H01G11/48H01G11/86C08L79/04C08L79/02C08L65/00C08J5/18D01F1/09D01F6/94
CPCC08J5/18C08J2365/00C08J2379/02C08J2379/04C08K3/041C08K2201/011D01F1/09D01F6/94H01G11/30H01G11/36H01G11/48H01G11/86Y02E60/13
Inventor 周维亚李克伟张强王艳春夏晓刚张楠解思深
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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