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Carbon nanotube coated with aromatic condensation polymer

A technology of carbon nanotubes and aromatics, applied in the treatment of dyed polymer organic compounds, single-component polycarbonate artificial filaments, single-component polyester artificial filaments, etc., can solve environmental pollution, difficult separation, acyl Problems with high reactivity of halides

Inactive Publication Date: 2006-02-22
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned method uses halides such as thionyl chloride in the reaction, so it not only pollutes the environment, but also the obtained acid halides are highly reactive and unstable substances, which are difficult to separate and obtain

Method used

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  • Carbon nanotube coated with aromatic condensation polymer
  • Carbon nanotube coated with aromatic condensation polymer
  • Carbon nanotube coated with aromatic condensation polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0257] Below, the method of the present invention is further detailed and specifically described through examples. However, these examples do not limit the scope of the present invention in any way.

[0258] (1) (centrifugation): Performed using a personal centrifuge manufactured by MILLIPORE.

[0259] (2) Determination of average particle size

[0260] The average particle diameter of the carbon nanotubes in the dispersion solvent was measured by a light scattering method using microtrack MT3000 manufactured by Nikkiso Co., Ltd. In addition, the average particle diameter of an untreated product was measured by performing ultrasonic treatment for 1 minute in N-methyl-2-pyrrolidone (it may be called NMP hereinafter) before measurement.

[0261] (3) Average diameter and average aspect ratio of carbon nanotubes

[0262] Using Hitachi H-800, measure the TEM (transmission electron microscope) photograph, measure the diameter and length of all carbon nanotubes that can be observe...

reference example 1

[0268] Reference Example 1: Synthesis of Single-walled Carbon Nanotubes

[0269] Y-type zeolite powder (manufactured by Tosoh; HSZ-320NAA) was used as a porous carrier, iron acetate and cobalt acetate were used as catalyst metal compounds, and the Fe / Co catalyst was supported on the zeolite. The supporting amount of the catalyst was adjusted to 2.5% by weight. Afterwards, the catalyst powder was placed on a quartz dish and placed in a quartz tube of a CVD apparatus for evacuation, and the temperature was raised from room temperature to 800° C. while introducing Ar gas at a flow rate of 10 mL / min. After reaching the specified 800°C, ethanol vapor was introduced at a flow rate of 3000mL / min, and kept under an Ar / ethanol atmosphere for 30 minutes. The obtained black product was analyzed by laser Raman spectroscopy and a transmission electron microscope, and it was confirmed that single-walled carbon nanotubes were formed. Then, after immersing the resulting product (single-wall...

reference example 2

[0270] Reference Example 2: Synthesis of Multiwalled Carbon Nanotubes

[0271] The reaction was carried out in the same manner as in Reference Example 1 except that the reaction temperature in the CVD apparatus was set to 600° C., and it was confirmed that multiwalled carbon nanotubes were produced. After refining and removing the zeolite and the metal catalyst in the same manner as in Reference Example 1, graphitization was performed using an electric sintering furnace (manufactured by Kurata Giken Co., Ltd., SCC-U-90 / 150). Firstly, the temperature is raised from room temperature to 1000°C in 30 minutes under vacuum, and then the temperature is raised from 1000°C to 2000°C in 30 minutes under an argon atmosphere and a pressure of 5 atm, and then the temperature is raised from 2000°C to 2800°C in 1 hour for sintering, thus obtaining Graphitized multilayer carbon nanotubes. Observation of the obtained carbon nanotubes by TEM revealed that the average diameter was 58 nm and the...

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Abstract

The present invention relates to carbon nanotubes obtained by coating 100 parts by weight of carbon nanotubes with 0.01 to 100 parts by weight of at least one aromatic condensation polymer selected from the group consisting of a wholly aromatic polyamide, wholly aromatic polyester, aromatic polyester carbonate, aromatic polycarbonate, semiaromatic polyester, and wholly aromatic azole; a process for producing the carbon nanotubes; an aromatic condensation polymer composition which comprises 0.01 to 100 parts by weight of the coated carbon nanotubes and 100 parts by weight of an aromatic condensation polymer; and a molded object formed from the composition.

Description

technical field [0001] The present invention relates to a carbon nanotube coated with an aromatic condensation polymer, a method for producing the same, a composition containing the same, and a molded body thereof. Background technique [0002] Carbon nanotubes exhibit excellent strength and modulus of elasticity due to their structure, and by adding a very small amount to the resin, it is expected that the strength and modulus of elasticity of the resin will be greatly improved. However, carbon nanotubes are insoluble in resins and solvents, and it is difficult to sufficiently disperse them in resins and solvents. [0003] Therefore, it has been considered to introduce functional groups into carbon nanotubes or to improve the dispersibility in solvents. For example, Science 280, 1253 (1998) reported the introduction of carboxylic acid groups into carbon nanotubes using sulfuric acid or the like. [0004] Science 282, 95 (1998) introduced the use of acid treatment to cut c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C3/10C08K3/04C08K9/04C08G63/78C08G69/32C08G73/06C08L67/03C08L69/00C08L77/10C08L79/04C08J5/18D01F1/10D01F6/60D01F6/62D01F6/64D01F6/74
Inventor 畳开真之桑原广明大森智松村俊一佐藤和彦本多劝
Owner TEIJIN LTD
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