Method for preparing double-walled carbon nanotube fiber with high orientation degree, high density and high conductivity through dry-jet wet spinning
The invention relates to the field of preparation of high-performance carbon nanotube fibers, in particular to a method for preparing high-orientation-degree, high-density and high-conductivity double-walled carbon nanotube fibers through dry-jet wet spinning. The preparation method comprises the fo...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
25.08.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to the field of preparation of high-performance carbon nanotube fibers, in particular to a method for preparing high-orientation-degree, high-density and high-conductivity double-walled carbon nanotube fibers through dry-jet wet spinning. The preparation method comprises the following steps: preparing a double-walled carbon nanotube liquid crystal spinning solution by taking a double-walled carbon nanotube with high quality and large length-diameter ratio as a raw material and adopting protonation technology in a low-loss dispersion manner; an air section is introduced in the process of preparing the carbon nanotube fiber through wet spinning, a double-walled carbon nanotube liquid crystal spinning solution is injected through an injector to pass through air with a certain length and then enters a coagulating bath, the height of the air section is regulated and controlled to regulate and control gravity to induce orientation and close arrangement of carbon nanotubes in the liquid crystal |
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Bibliography: | Application Number: CN202310562592 |