Manufacturing method of composite material of doped aligned carbon nanotubes

Abstract

The invention discloses a manufacturing method of a composite material of doped aligned carbon nanotubes, and belongs to the field of nanocomposite manufacturing. The formula includes the carbon nanotubes and a base material. The method includes the steps that 1, gas-phase dispersion carbon nanotube airflow is made to pass through a high-voltage cathode metal net in an air channel and enter a uniform electric field; 2, the carbon nanotube airflow falls into a receiving tray perpendicular to the electric field; 3, the atomized base material is driven by the airflow to fall into the receiving tray from a base material air channel; 4, in the working process, the receiving tray rotates at a constant speed in the fixed direction and receives oriented carbon nanotube particles and oriented base material particles from the two air channels respectively; 5, manufacturing of the composite material of the doped aligned carbon nanotubes can be completed after the mixture in the receiving tray accumulates to a needed thickness. The manufacturing method of the composite material of the doped aligned carbon nanotubes is high in alignment degree and can achieve any thickness.

Description

technical field [0001] The invention belongs to the field of nanocomposite material preparation, in particular to a method for preparing doped oriented carbon nanotube composite material. Background technique [0002] Carbon nanotubes, which are tubular substances with a diameter of nanometers, are formed by curling graphite sheets according to a certain helix angle by using electric arc, laser and other technologies. It has a very large aspect ratio, excellent physical properties, and its tensile strength is 100 times that of steel. The heat exchange performance along the length direction is high, while the heat exchange performance in the vertical direction is relatively low. Through proper orientation, carbon nanotubes can synthesize highly anisotropic heat conduction materials. Adding a small amount is an ideal additive material to improve the physical properties of rubber, plastics and chemical industries, and has a very broad application prospect. [0003] Since carb...

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Problems solved by technology

Although the modified method has the characteristics of simple process, the orientation of carbon nanotubes in the matrix is ​​poor, and it is easy to agglomerate during the stirring process.

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