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Transparent macro-tube continuum formed by carbon nano-tubes and composite method thereof

A technology of carbon nanotubes and continuum, applied in the field of nanomaterials, to achieve the effects of simple equipment, simple and easy-to-obtain raw materials, and easy handling

Active Publication Date: 2012-10-31
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But they don't turn airgel directly into continuous, transparent macroscopic tubes

Method used

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  • Transparent macro-tube continuum formed by carbon nano-tubes and composite method thereof
  • Transparent macro-tube continuum formed by carbon nano-tubes and composite method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Quartz capillaries are installed at the outlet of a horizontal corundum tube reactor with a purity of 99.8% and a diameter of 10 mm. The capillaries are evenly distributed at the outlet of the corundum tubes. The number of capillaries is 4, and the inner diameter of the capillaries is 0.5 mm. Nitrogen flow 5Lh -1 ; After raising the temperature of the corundum tube reactor to 1600°C, continuously feed nitrogen into the reactor with a nitrogen flow rate of 10Lh -1 ; The reaction solution composed of n-hexane, ferrocene, thiophene was mixed with 0.5mlmin -1 The rate is passed into the corundum reactor under the introduction of nitrogen. The specific formula of the reaction solution refers to the patent CN 101514444; after 1 minute of passing the reaction solution into the reactor, gaseous carbon nanotube gas can be obtained at the entrance of the reaction tube. Gel, continue to pass into the reaction solution, the carbon nanotube airgel in the corundum tube is under the ...

Embodiment 2

[0018] Quartz capillaries are installed at the outlet of a horizontal corundum tube reactor with a purity of 99.8% and a diameter of 10 mm. The capillaries are evenly distributed at the outlet of the corundum tubes. The number of capillaries is 8, and the inner diameter of the capillaries is 0.5 mm. Nitrogen flow 10Lh -1 ; After raising the temperature of the corundum tube reactor to 1650°C, continuously feed nitrogen into the reactor with a nitrogen flow rate of 30Lh -1 ; drop the reaction solution composed of n-hexane, ferrocene and thiophene in 1mlmin -1 The rate is passed into the corundum reactor under the introduction of nitrogen. The specific formula of the reaction solution refers to the patent CN 101514444; after 1 minute of passing the reaction solution into the reactor, gaseous carbon nanotube gas can be obtained at the entrance of the reaction tube. Gel, continue to pass into the reaction solution, the carbon nanotube aerogel in the corundum tube is under the syne...

Embodiment 3

[0020] Quartz capillaries are installed at the outlet of a horizontal corundum tube reactor with a purity of 99.8% and a diameter of 20 mm. The capillaries are evenly distributed at the outlet of the corundum tubes. The number of capillaries is 8, and the inner diameter of the capillaries is 0.5 mm. Nitrogen flow 15Lh -1 ; After raising the temperature of the corundum tube reactor to 1650°C, continuously feed nitrogen into the reactor with a nitrogen flow rate of 50Lh -1 ; The reaction solution composed of n-hexane, ferrocene, thiophene was mixed with 2mlmin -1 The rate is passed into the corundum reactor under the introduction of nitrogen. The specific formula of the reaction solution refers to the patent CN 101514444; after 1 minute of passing the reaction solution into the reactor, gaseous carbon nanotube gas can be obtained at the entrance of the reaction tube. Gel, continue to pass into the reaction solution, the carbon nanotube aerogel in the corundum tube is under the ...

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Abstract

The invention relates to a transparent macro-tube continuum of carbon nano-tubes and a composite method thereof, belonging to the technical field of nanometer materials. The transparent macro-tube continuum has the diameter of 5-35 mm and the density of 0.1gcm<-3>, and is formed by carbon nano-tubes. Materials with the surface energy being lower than 73*10<-3>Nm<-2> can be absorbed by contacting with the transparent macro-tube continuum. The composite method comprises the following steps of: installing a capillary tube on the outlet of a horizontal alundum tube reactor with the diameter of 10-40mm and the purity of 99.8%, and introducing nitrogen; continuously introducing nitrogen into the reactor after the reactor temperature rises to 1600-1750 DEG C; introducing a reaction solution to the reactor at the speed of 0.5-5mlmin<-1> to obtain aerogel at the outlet of a reaction tube in one minute; continuously introducing the reaction solution to take the aerogel away from the inlet of the tube reactor; and spraying the macro-tube continuum at the outlet at the spray of 5 to 50mmin<-1>. The composite method provided by the invention has the advantages of simple and easily-obtained rawmaterials, low cost, no environmental pollution, easiness for treatment on products, high yield and simple device, is beneficial to the realization of continuous operation and suitable for mass production, and in addition, no obvious combustible dangerous raw materials exist because nitrogen is adopted for protection.

Description

technical field [0001] The invention relates to a new form of existence of carbon nanotubes in the technical field of nanomaterials and a synthesis method thereof, in particular to a transparent macroscopic tube continuum composed of carbon nanotubes and a synthesis method thereof. Background technique [0002] As a new type of nanomaterial, carbon nanotubes have brought excellent mechanical properties, electrical properties, thermal properties and electromagnetic properties due to their unique geometric structure and electronic band structure since their discovery. These excellent properties make Carbon nanotubes have great potential application advantages, which has attracted great attention of researchers. Most of the early theoretical and experimental studies focused on single carbon nanotubes or carbon nanotube bundles at the microscopic scale. In recent years, with the continuous deepening of applied research and many existing high-tech fields, such as aerospace, preci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/00C01B31/02
Inventor 吴子平李明茂胡英燕黎业生王智祥
Owner JIANGXI UNIV OF SCI & TECH
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