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Carbon-based material/polymer composite material and preparation method thereof

A carbon-based material and composite material technology, applied in chemical instruments and methods, synthetic resin layered products, rubber layered products, etc., can solve the problems of low carbon nanotube content, low electrical conductivity, and large carbon nanotube spacing. , to achieve a wide range of applicability, improve electrical conductivity, improve the effect of electrical conductivity

Active Publication Date: 2015-09-23
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(Macromol. Chem. Phys. 2011, 212, 1671–1676) The reason for the low conductivity of the above materials is that the content of carbon nanotubes is small, the distance between adjacent carbon nanotubes is large, and the contact between carbon nanotubes is not sufficient. Good electrical and thermal conduction network, so the excellent electrical conductivity of carbon nanotubes cannot be fully utilized

Method used

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  • Carbon-based material/polymer composite material and preparation method thereof
  • Carbon-based material/polymer composite material and preparation method thereof
  • Carbon-based material/polymer composite material and preparation method thereof

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preparation example Construction

[0041] The preparation method of the carbon-based material / polymer composite material 10 comprises the following steps:

[0042] 1) Mix and disperse carbon-based materials in a solvent to prepare a uniformly dispersed mixed dispersion;

[0043] 2) Remove the solvent in the above mixed dispersion to form a film with an electrical and thermal network;

[0044] 3) In situ polymerizing a flexible polymer as a matrix in the above film;

[0045] 4) Remove the filter membrane on the surface of the material obtained in step 3) to obtain a carbon-based material / polymer composite material 10 with a flexible polymer layer 12 and a conductive layer.

[0046] Further, the solvent in the step 1) is ethanol, acetone or dimethylformamide.

[0047] The mixing and dispersion in the step 1) is realized by ultrasonic crushing or ultrasonic dispersion, and the method for removing the solvent in the mixed dispersion in the step 2) is a vacuum filtration method.

[0048] In the carbon-based mater...

Embodiment 1

[0056] The carbon-based material used in this embodiment is carbon nanotubes grown by chemical vapor deposition. The diameter of carbon nanotubes is 10-30nm, the length is >5um, and the purity is >=95%. Other reagents are analytical reagents purchased on the market. , no further processing is required.

[0057] The preparation method of the carbon-based material / polymer composite material 10 of this embodiment includes the following four steps:

[0058] 1) Preparation of multi-walled carbon nanotube dispersion: Disperse 150 mg of carbon nanotubes in 50 ml of ethanol, and use an ultrasonic cell disruptor at a power of 240 W to sonicate for 10 minutes, so that the multi-walled carbon nanotubes are evenly dispersed in ethanol, Prepare a uniformly dispersed mixed dispersion;

[0059] 2) Remove the solvent in the above mixed dispersion to make a film with a conductive and heat-conducting network. Specifically, use a suction filter funnel and a circulating water vacuum pump to prep...

Embodiment 2

[0065] The carbon-based material used in this embodiment is a carbon nanotube grown by chemical vapor deposition. The diameter of the carbon nanotube is 10-30nm, the length is >5um, and the purity is >=95%; aniline and ammonium persulfate are purchased on the market Analytical grade reagents without further processing.

[0066] The carbon-based material / polymer composite material 10 of this embodiment also includes a layer of organic conductive polymer material layer 21, and the preparation method of the three-layer carbon-based material / polymer composite material 20 is divided into the following five steps:

[0067] 1) Preparation of multi-walled carbon nanotube dispersion liquid, disperse 150mg of carbon nanotubes in 50ml of ethanol, use an ultrasonic cell breaker at a power of 240W, ultrasonic treatment for 10min, so that the multi-walled carbon nanotubes are evenly dispersed in ethanol, Prepare a uniformly dispersed mixed dispersion;

[0068] 2) Remove the solvent in the ...

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Abstract

The invention discloses a carbon-based material / polymer composite material and a preparation method thereof. The carbon-based material / polymer composite material comprises at least one flexible polymer layer and at least one conducting layer, wherein the conducting layer is arranged on the flexible polymer layer in a staggered layer mode, and the conducting layer is a carbon-based material / polymer composite material layer or a carbon-based material / polymer composite material layer and an organic conducting polymer layer, the carbon-based material / polymer composite material has good electrical conductivity, in addition, polymer materials are tightly filled between the carbon-based materials, therefore, the connection between the carbon-based materials is stable, the connection between the conducting layer and the polymer material layer is firm and better in the mechanical property, and the carbon-based material / polymer composite material is good in flexibility and capable of being used as a flexible electrode of accumulators such as a capacitor.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a carbon-based material / polymer composite material and a preparation method thereof. Background technique [0002] Carbon-based materials are materials that have attracted much attention in recent years, especially carbon nanotubes. Taking carbon nanotubes as an example, carbon nanotubes have many excellent properties and can be applied in many fields. Carbon nanotubes are seamless hollow tubes rolled from graphite sheets. Due to the quantum confinement of electrons in carbon nanotubes, electrons can only move along the axial direction of carbon nanotubes in graphite sheets, so carbon nanotubes Exhibits unique electrical and thermal properties. Research and test results show that the average conductivity of carbon nanotubes can reach 1000~2000S / m (Siemens / meter). In addition, carbon nanotubes also have excellent mechanical properties, such as high strength and modulus. [0...

Claims

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Application Information

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IPC IPC(8): B32B9/04B32B27/00B32B25/00
CPCB32B9/007B32B9/04B32B25/00B32B27/00B32B2307/202
Inventor 陈鲁倬张薇周培迪翁明岑张玲玲黄志高
Owner FUJIAN NORMAL UNIV
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