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Carbon nanotube composite fiber and production method thereof

A carbon nanotube composite, carbon nanotube technology, applied in the chemical characteristics of fibers, stretch spinning, rayon manufacturing, etc., can solve the problems of difficult large-scale continuous implementation, limited film size, etc., to achieve rich functional characteristics, Simple and effective preparation method

Inactive Publication Date: 2017-01-18
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can introduce graphene into the fiber, the size of the film is limited by the size of the round roll, and it is difficult to implement it continuously on a large scale

Method used

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  • Carbon nanotube composite fiber and production method thereof
  • Carbon nanotube composite fiber and production method thereof
  • Carbon nanotube composite fiber and production method thereof

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preparation example Construction

[0018] An embodiment of the present invention provides a method for preparing a carbon nanotube composite fiber, which includes: continuously pulling out a carbon nanotube film from a spinnable carbon nanotube array, and keeping the carbon nanotube film in a flat state and continuously Stable and fully contact with the liquid phase system containing the selected substance, so that the selected substance is fully filled between the carbon nanotubes forming the carbon nanotube film and / or attached to the carbon nanotubes forming the carbon nanotube film The carbon nanotube surfaces are then collected into fibers, thereby obtaining the carbon nanotube composite fibers. Wherein, by keeping the carbon nanotube film in a flat state, there is a gap for the selected substance to enter between most of the carbon nanotubes in the carbon nanotube film, which is beneficial to the selected substance and the carbon nanotube. compound.

[0019] Further, the carbon nanotube film is maintaine...

Embodiment 1

[0048] (1) Preparation of carbon nanotube / graphene composite fiber: take a piece of spinnable carbon nanotube array, and scrape out the carbon nanotube film from the array, pull the film with tweezers to fix it on the collecting device, Place a graphene oxide (single-layer or multi-layer) solution with a concentration of about 0.1mg / mL~16mg / mL under the carbon nanotube film, and pass the carbon nanotube film uniformly and stably through the graphene oxide solution through the collection device. Collect and twist at the same time to obtain carbon nanotube / graphene oxide composite fiber.

[0049] (2) High temperature treatment of carbon nanotubes / graphene composite fibers: put the carbon nanotubes / graphene oxide composite fibers prepared in step (1) into a tube furnace, and in an argon protective atmosphere, control the temperature at 100- At 1000°C for 4-5 hours, carbon nanotube / graphene composite fibers with better performance can be obtained.

[0050] see figure 2 As shown...

Embodiment 2

[0052] (1) Preparation of carbon nanotube / silver nanoparticle composite fiber: take a piece of spinnable carbon nanotube array, scrape out the carbon nanotube film from the array, pull the film with tweezers to fix it on the collecting device, The silver nanoparticle solution (solvent can be water, ethanol and other silver nanoparticle dispersible solvents, silver nanoparticle can be silver nanospheres, silver nanowires and other nanostructures) placed below the carbon nanotube film, through the collection device The carbon nanotube film passes through the silver nanoparticle solution at a uniform speed and stably, and then is collected and twisted at the same time to obtain the carbon nanotube / silver nanoparticle composite fiber.

[0053] (2) High-temperature treatment of carbon nanotube / silver nanoparticle composite fiber: put the carbon nanotube / silver nanoparticle composite fiber prepared in step (1) into a tube furnace, and control the temperature at 100 °C in an argon pro...

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Abstract

The invention discloses a carbon nanotube composite fiber and a production method thereof. The production method comprises the following steps: continuously pulling out a carbon nanotube film from a spinnable carbon nanotube array, keeping the carbon nanotube film in an open and flat state, allowing the carbon nanotube film to continuously and stably be in full contact with a liquid phase system including a selected substance to make the selected substance fill a gap among carbon nanotubes composing the carbon nanotube film or be attached to the surface of the carbon nanotubes composing the carbon nanotube film, and collecting the formed fiber in order to obtain the carbon nanotube composite fiber. The production method of the carbon nanotube composite fiber is simple and effective, is suitable for producing various composite fibers, can endow carbon nanotube fibers with abundant function characteristics through adding compounds without destroying the self performances of the carbon nanotube fibers, and also realizes continuous large-scale enforcement to make large-scale production manufacturing of the carbon nanotube composite fiber become possible.

Description

technical field [0001] The invention relates to a carbon nanotube composite fiber, in particular to a carbon nanotube composite fiber and a preparation method thereof, belonging to the technical field of nano-micro composite materials. Background technique [0002] Since carbon nanotube fibers were successfully prepared from carbon nanotube arrays by researchers at Tsinghua University in 2002, they have attracted extensive attention from researchers at home and abroad. Since carbon nanotubes have excellent properties such as force, heat, and electricity, carbon nanotube fibers assembled from carbon nanotubes also have excellent properties and wider application fields. [0003] At present, the preparation methods of carbon nanotube fibers that have been developed include array spinning method, floating catalytic vapor deposition method and solution spinning method. The tensile strength of the prepared carbon nanotube fibers can reach more than 1.0GPa, which meets the require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/08D01F9/12D01F1/10D01D5/12
CPCD01F9/08D01D5/12D01F1/10D01F9/12
Inventor 吕卫帮张翠霞曲抒旋巩文斌李达李清文
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI