Method for manufacturing overlong and fine-drawn reinforced carbon nano-pipeline

Abstract

The invention relates to a method for manufacturing an overlong and fine-drawn reinforced carbon nano-pipeline. The method comprises the following steps: dissolving the carbon nano-pipeline in an organic solvent, and dispersing by ultrasonic to prepare suspension; electrifying two conical electrodes outside a container of the suspension to form a non uniform electric field, feeding a dry fiber wire into the suspension at constant speed, and moving the fiber wire in the suspension at constant speed; drawing the fiber wire to leave the surface of the suspension at constant speed, passing the fiber wire through a corresponding pore on a filter plate, and filtering residual carbon nano-pipelines which are adsorbed outside the fiber wire; corroding the fiber wire with sulfuric acid; cleaning with water, and reserving the carbon nano-pipeline to achieve the fine drawing of the fiber wire; and applying polymer outside the fine carbon nano-pipeline in a polymer lead wire coating process so as to obtain the overlong and fine reinforced carbon nano-pipeline. The length of the carbon nano-pipeline can be determined according to the length of the fiber wire, so that the nano-pipeline can be manufactured to be longer. Through the fine drawing process, the carbon nano-pipeline has higher tensile strength and toughness compared with that of the carbon nano-pipeline in the prior art.

Description

Technical field [0001] The invention belongs to the technical field of processing carbon nanotubes, in particular to a method for manufacturing carbon nanotubes. Background technique [0002] Carbon nanotubes have been hailed as future materials since they were discovered, and they are one of the frontier fields of international science in recent years. Some interesting features of carbon nanotubes make them potentially useful in many fields. Due to their useful properties, carbon nanotubes are currently used in the manufacture of carbon nanotube articles, such as carbon nanotube wires or carbon nanotube bundles. [0003] However, current carbon nanotube wires have poor mechanical strength, such as brittleness and breakage when external mechanical force is applied. This is because the carbon nanotubes of the carbon nanotube wire are formed by adhering to each other through relatively weak van der Waals forces. Thus, there is a need to increase the mechanical strength of c...

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Problems solved by technology

But the speed of forming the carbon nanotube wire is very slow, about 2mm / min to about 5mm / min

And the length of production is limited: one is due to the limitations of its production tooling, and secondly, the metal tip is taken out of the carbon nanotube colloid solution, and the strength of the formed carbon nanotube line is insufficient. If it is too long, it will be due to gravity. Fracture (the length disclosed in the specification is several centimeters to tens of meters)

Obviously this kind of carbon nanotube wire is not suitable as a long-distance wire

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