Carbon nano-tube composite material and preparation method thereof

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...

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

Images