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Preparation method of high-dispersion carbon nanotube material

A technology of carbon nanotubes and high dispersion, applied in the direction of carbon nanotubes, nanocarbons, etc., can solve problems such as easy agglomeration, hindering performance, and inability to achieve dispersion, and achieve the effect of solving agglomeration, easy operation, and convenient and effective preparation methods

Pending Publication Date: 2021-11-12
哈尔滨金纳科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that the existing carbon nanotube materials are easy to agglomerate, resulting in that they cannot be well dispersed when added to other materials, thereby hindering the performance of the performance, a preparation method of a highly dispersed carbon nanotube material is provided.

Method used

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  • Preparation method of high-dispersion carbon nanotube material
  • Preparation method of high-dispersion carbon nanotube material

Examples

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Embodiment 1

[0026] Metal salt ferric nitrate and aluminum nitrate are added to water according to the mass ratio of 1:1 to configure an aqueous solution with a metal salt mass concentration of 50%, and then the solution and asphalt mixture are mixed according to the mass ratio of 1:1 for spinning. The filament temperature was 150°C and the time was 14 minutes. Then carry out preoxidation and carbonization, the temperature is 220 ℃, the time is 60 minutes. The carbonized spun carbon fiber is pulverized and passed through a 150-mesh sieve. After sieving, put the pulverized carbon fibers into a tube furnace, heat up to 680°C with nitrogen gas, and then keep warm for 50 minutes. During the heat preservation, pass propylene gas. The volume ratio of propylene and nitrogen is 2:1. After the heat preservation is completed, turn off the heating. Stop passing propylene, continue to pass nitrogen, wait to be cooled to room temperature and take out the carbon nanotube material prepared by reaction, ...

Embodiment 2

[0028] Metal salt ferric nitrate and aluminum nitrate are added to water according to the mass ratio of 1:2 to configure an aqueous solution with a metal salt mass concentration of 50%, and then the solution and asphalt mixture are mixed according to the mass ratio of 1:1 for spinning. The filament temperature was 150°C and the time was 14 minutes. Then carry out preoxidation and carbonization, the temperature is 220 ℃, the time is 60 minutes. The carbonized spun carbon fiber is pulverized and passed through a 150-mesh sieve. After sieving, put the pulverized carbon fibers into a tube furnace, heat up to 680°C with nitrogen gas, and then keep warm for 50 minutes. During the heat preservation, pass propylene gas. The volume ratio of propylene and nitrogen is 1:1. After the heat preservation is completed, turn off the heating. Stop passing propylene, continue to pass nitrogen, wait to cool to room temperature and take out the carbon nanotube material prepared by the reaction. ...

Embodiment 3

[0030] Add metal salts of ferric nitrate, cobalt nitrate and aluminum nitrate to water in a mass ratio of 1:1:4 to prepare an aqueous solution with a metal salt mass concentration of 50%, and then mix the solution with an asphalt mixture in a mass ratio of 1:1 Spinning was carried out at a spinning temperature of 150° C. for 14 minutes. Then carry out preoxidation and carbonization, the temperature is 220 ℃, the time is 60 minutes. The carbonized spun carbon fiber is pulverized and passed through a 150-mesh sieve. After sieving, put the pulverized carbon fibers into a tube furnace, heat up to 680°C with nitrogen gas, and then keep warm for 50 minutes. During the heat preservation, pass propylene gas. The volume ratio of propylene and nitrogen is 2:1. After the heat preservation is completed, turn off the heating. Stop passing propylene, continue to pass nitrogen, wait to cool to room temperature and take out the carbon nanotube material prepared by the reaction.

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Abstract

The invention discloses a preparation method of a high-dispersion carbon nanotube material, and belongs to the technical field of preparation of high-dispersion carbon nanotube materials. According to the preparation method, the problem that carbon nanotubes cannot be well dispersed when being added into other materials due to the agglomeration characteristic of a nano material, and then the performance exertion is hindered is solved. According to the invention, the in-situ growth of the carbon nanotubes is combined with the fiber material, so that good dispersion of the carbon nanotubes is realized, and the excellent performance of the carbon nanotubes is fully exerted. In addition, the preparation method provided by the invention is simple in preparation process and easy to operate, and is a convenient and effective preparation method.

Description

technical field [0001] The invention relates to a preparation method of a highly dispersed carbon nanotube material, belonging to the technical field of highly dispersed carbon nanotube material preparation. Background technique [0002] Carbon nanotube material is a one-dimensional carbon nanomaterial with excellent electrical conductivity, mechanical properties and many other properties. The unique properties make carbon nanotubes have various application potentials. As one of the materials with the best mechanical properties found so far, carbon nanotubes have extremely high tensile strength. Transparent bulletproof vests and other "black technology" products. In addition, some researchers have also developed a sensor fabric that can sensitively sense pressure changes by synthesizing carbon nanotube materials, which can play an important role in the field of sports training. People are also trying to make carbon nanotubes into transparent conductive films, which can be ...

Claims

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Application Information

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IPC IPC(8): C01B32/16
CPCC01B32/16
Inventor 梅佳时浩娄明何斌刘强李朋张超
Owner 哈尔滨金纳科技有限公司
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