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Carbon nano-tube composite material and preparation method thereof

A carbon nanotube, composite material technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of difficult solvent removal, complex process, high cost, reduce production costs, simplify the preparation process, and ensure complete sexual effect

Active Publication Date: 2009-07-15
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, it is difficult to mix carbon nanotubes with polymers uniformly by mechanical blending method, so carbon nanotubes are not mixed uniformly in the obtained carbon nanotube composites.
Second, this method needs to modify the surface of carbon nanotubes so that carbon nanotubes can be better dispersed in polymers, but the surface modification of carbon nanotubes will seriously destroy the complete structure of carbon nanotubes, thus affecting Properties of carbon nanotube composites
Third, the method of stirring is used to disperse carbon nanotubes. The arrangement of carbon nanotubes is chaotic and has no fixed orientation, so that carbon nanotubes cannot exert their axial advantages in the composite, thus affecting the performance of carbon nanotube composites.
Fourth, the method requires the addition of a solvent, which is difficult to remove, making the carbon nanotube composite composition impure
The 5th, this method process is complicated, and cost is higher

Method used

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  • Carbon nano-tube composite material and preparation method thereof
  • Carbon nano-tube composite material and preparation method thereof
  • Carbon nano-tube composite material and preparation method thereof

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preparation example Construction

[0022] Please refer to image 3 , the technical solution also provides a method for preparing the above-mentioned carbon nanotube composite material 10, which specifically includes the following steps:

[0023] Step 1: preparing a polymer matrix 14 which is a polymer film.

[0024] The polymer matrix 14 can be prepared by solution film formation, hot-melt scraping coating, casting film formation and spray coating film formation.

[0025] In this embodiment, the polymer matrix 14 is prepared by hot-melt knife coating, which specifically includes the following steps: first, put liquid allylphenol in a container, heat it to 90-180°C, keep the container at this temperature and stir several minutes. Secondly, add bismaleimide powder into liquid allyl phenol, the mass ratio of bismaleimide to allyl phenol is in the range of 60:5-60:70, and the temperature of the container is controlled at 110-160 Within the range of ℃, let it stand still and keep the container at the temperature,...

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Abstract

The invention relates to a carbon nano tube composite material which comprises a macromolecule matrix and a carbon nano tube, wherein the carbon nano tube is arranged in the macromolecule matrix in a form of a carbon nano tube film structure. A manufacture method for the carbon nano tube composite material comprises the following steps: the macromolecule matrix is prepared; a carbon nano tube film is prepared; at least one carbon nano tube film is arranged on at least one surface of the macromolecule matrix to form the carbon nano tube membrane structure, thereby a prefabricated part of the carbon nano tube composite material is formed; the prefabricated part of the carbon nano tube composite material is heated to cause the carbon nano tube membrane structure to be compounded with the macromolecule matrix, thereby the carbon nano tube composite material is obtained.

Description

technical field [0001] The invention relates to a carbon nanotube composite material and a preparation method thereof, in particular to a carbon nanotube polymer composite material and a preparation method thereof. Background technique [0002] Since the discovery of carbon nanotubes (Carbon Nanotubes, CNTs) by Iijima of Japan's NEC Corporation in 1991 (Iijima S. Helical Microtubules of Graphic Carbon. Nature, 1991, 354: 56-58), carbon nanotubes have attracted a lot of attention in the scientific and industrial circles. It has become a hot spot of international scientific research in recent years. Carbon nanotubes have the same thermal conductivity and unique mechanical properties as diamond, such as a tensile strength of up to 100 gigaPascals, a modulus of up to 1800 gigapascals, resistance to strong acids and alkalis, and basically no oxidation below 600 °C. [0003] Because carbon nanotubes have such excellent properties, using carbon nanotubes as fillers to compound wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B37/02B32B37/06B32B38/08C01B31/02
CPCB29C70/14B29C43/203C08J5/005B29C43/003C08J3/201B82Y30/00Y10T156/10Y10T428/254Y10T428/30
Inventor 范守善程群峰王佳平姜开利
Owner TSINGHUA UNIV
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