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Fibrous carbon nanostructure dispersion

A nanostructure, fibrous carbon technology, applied in nanostructure manufacturing, carbon nanotubes, nanocarbons, etc., can solve problems such as poor handling and processability, and achieve the effect of excellent dispersibility

Active Publication Date: 2018-08-21
ZEON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since fibrous carbon nanostructures such as CNTs are fine structures with a diameter of nanometers, the handling and processability of the monomer is poor.

Method used

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  • Fibrous carbon nanostructure dispersion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0149]

[0150] According to the super growth method described in Japanese Patent No. 4621896, SGCNTs as fibrous carbon nanostructures were synthesized under the following conditions.

[0151] Raw material carbon compound: ethylene; supply speed 50sccm

[0152] Atmosphere: helium / hydrogen mixed gas; supply speed 1000sccm

[0153] ·Pressure: 1 atmosphere

[0154] ·Water vapor addition amount: 300ppm

[0155] ·Reaction temperature: 750℃

[0156] Response time: 10 minutes

[0157] Metal catalyst: iron thin film (thickness 1nm)

[0158] ·Substrate: silicon wafer.

[0159] Dissolve 1 g of the obtained SGCNT in 250 mL of 7.7 M HNO 3 Stir in the middle for 8 hours, and reflux at 125°C for 12 hours for purification. Then, 1800 mL of deionized water was added, and after ultrasonic treatment at 40 kHz for 60 minutes using an ultrasonic irradiation machine (manufactured by Honda Electronics, product name "WTC-1200-40"), cross-flow filtration was performed using a 0.02 μm ceramic...

Embodiment 2

[0161] A fibrous carbon nanostructure dispersion was obtained in the same manner as in Example 1, except that the synthesis reaction time of the fibrous carbon nanostructure SGCNT was 15 minutes. The obtained fibrous carbon nanostructure dispersion was 90 mL.

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Abstract

The purpose of the present invention is to provide a fibrous carbon nanostructure dispersion that exhibits excellent dispersibility of a fibrous carbon nanostructure. This fibrous carbon nanostructuredispersion is characterized by comprising: a fibrous carbon nanostructure that has a mass reduction rate of 3.0 mass% or less as measured by thermogravimetric analysis in a nitrogen atmosphere when the temperature is increased from 23 to 200deg c at a temperature increase rate of 20deg c / min; and a solvent.

Description

technical field [0001] The present invention relates to a fibrous carbon nanostructure dispersion. Background technique [0002] In recent years, fibrous carbon materials, especially fibrous carbon nanostructures such as carbon nanotubes (hereinafter sometimes referred to as "CNT") have attracted attention as materials excellent in electrical conductivity, thermal conductivity, and mechanical properties. [0003] However, since a fibrous carbon nanostructure such as CNT is a fine structure with a diameter of nanometer size, it is poor in handling and processability of a single body. Therefore, for example, the following technical proposals have been proposed: preparing a solution for dispersing CNTs, applying the solution to a substrate, etc., whereby a plurality of CNTs are aggregated into a film, thereby forming what is sometimes called "Bucky Paper" (BuckyPaper). ) carbon nanotube film (hereinafter, sometimes referred to as "CNT film"), and this CNT film is used as a con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/152B82Y30/00C01B32/158
CPCB82Y30/00C01B32/16C01B32/174C01B2202/28C01B2202/36H10K85/221B82B1/005B82B3/008C09D5/24
Inventor 阿部聪
Owner ZEON CORP
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