Modified carbon nanotube array, carbon nanotube fiber, preparation method and application thereof
A technology of carbon nanotube fiber and carbon nanotube array, which is applied in the field of materials and can solve problems such as poor wear resistance
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[0023] The method for preparing carbon nanotube fibers in one embodiment can prepare modified carbon nanotube arrays with high wear resistance, and the obtained carbon nanotube fibers have high wear resistance, and can be used to prepare carbon nanotube fibers with high wear resistance. Tall fabric.
[0024] It should be noted that traditional weaving methods can be used to weave carbon nanotube fibers into cloth. Conventional weaving methods may be, for example, plain weave or twill weave. It should be noted that a single carbon nanotube fiber can be used for weaving, or multiple carbon nanotube fibers can be twisted in parallel to form one and then spun.
[0025] Specifically, the preparation method of the carbon nanotube fiber includes the following steps S110-S120:
[0026] S110, preparing a modified carbon nanotube array.
[0027] In one of the embodiments, S110 includes S111~S113:
[0028] S111, preparing a carbon nanotube array.
[0029] In one embodiment, the carb...
Embodiment 1
[0082] The preparation process of the cloth of the present embodiment is as follows:
[0083] (1) Take a piece of the first substrate, deposit and form a 20nm thick catalyst layer on the first substrate, the catalyst layer is a mixed material of nickel and cobalt (the mass ratio of nickel and cobalt is 1:1), and then place the first substrate In the chemical vapor deposition reaction furnace, pass nitrogen gas, then raise the temperature to 900 ° C, and then feed the carbon source gas into the chemical vapor deposition reaction furnace (the carbon source gas includes ethylene and hexane, and the gas partial pressure ratio of ethylene and hexane is 8 : 1), and the flow rate of carbon source gas is controlled to react at 15L / min for 25min, so that the first substrate surface is completely covered with carbon nanotube arrays, the carbon nanotube arrays are single-walled carbon nanotube arrays, and the length of the carbon nanotube arrays is 650 μm, and the diameter of the carbon ...
Embodiment 2
[0089] The preparation process of the cloth of the present embodiment is as follows:
[0090] (1) Take a piece of the first substrate, deposit and form a 23nm thick catalyst layer on the first substrate, the catalyst layer is a mixed material of iron, nickel and cobalt (the mass ratio of nickel and cobalt is 1:1), and then the first The substrate is placed in a chemical vapor deposition reactor and passed through nitrogen gas, then the temperature is raised to 550° C., and then a carbon source gas is introduced into the chemical vapor deposition reactor (the carbon source gas includes ethylene and hexane, and the gas partial pressure ratio of ethylene and hexane is 1.25:1), and the flow rate of the carbon source gas is controlled at 5 L / min for 10 min, so that the surface of the first substrate is completely covered with a carbon nanotube array, the carbon nanotube array is a single-walled carbon nanotube array, and the carbon nanotube array The length of the carbon nanotubes ...
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