Carbon nanometer tube flat filament, preparation method and preparation device thereof

Abstract

The invention discloses a carbon nanometer tube flat filament, a preparation method and a preparation device thereof. The preparation method for the carbon nanometer tube flat filament comprises the following steps: drawing out a carbon nanometer tube base yarn beam; successively semi-lapping the carbon nanometer tube base yarn beam on at least four rollers at sequentially increasing linear velocity, thereby drawing the carbon nanometer tube base yarn beam; stretching the carbon nanometer tube base yarn beam in S form among at least four rollers and respectively resisting at least two rollers against the two opposite sides of the carbon nanometer tube base yarn beam, thereby obtaining the carbon nanometer tube flat filament. Compared with the prior art, the preparation method has the advantages that the preparation rate of the carbon nanometer tube flat filament is greatly increased through a gradual stretching method; the carbon nanometer tubes in the carbon nanometer tube flat filament are arrayed in an oriented way along the axial direction of the flat filament; the directional problem in a use process can be reduced; the carbon nanometer tube flat filament is flat; the combination degree between the carbon nanometer tubes in the carbon nanometer tube flat filament is higher and the density is increased; the contact area between the carbon nanometer tube flat filament and the carbon nanometer tube flat filament or the resin in the use process is increased; the interface bonding performance is increased.

Description

technical field [0001] The invention relates to the technical field of carbon nanotubes, in particular to a carbon nanotube flat wire, a preparation method and a preparation device thereof. Background technique [0002] Carbon nanotubes are the lightest and highest-strength one-dimensional linear materials discovered so far. They are multifunctional materials integrating mechanical, electrical, and thermal properties. A lot of research has been done as a mechanical reinforcement, but due to problems such as content, orientation, and mutual integration, its mechanical properties have not been qualitatively improved. [0003] Carbon nanotube fiber, as the macroscopic one-dimensional aggregation form of carbon nanotubes, is one of the most important presentation forms of carbon nanotubes from microscopic to macroscopic applications. The content of carbon nanotubes reaches more than 95%, and it is easier to exert the performance of carbon nanotubes. For many years to attract th...

AI Technical Summary

Problems solved by technology

[0007] For at least solving one of the above-mentioned technical problems, the object of the present invention is to provide a carbon nanotube flat wire and its preparation method and preparation device, which not only can ensure the electrical, thermal and mechanical properties of the carbon nanotube flat wire, but also solve the problem of processing difficult problem

Images