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Method for processing barometric pressure, normal-temperature plasma modification on carbon nano-tube surface

A technology of plasma and carbon nanotubes, applied in the direction of dyeing physical treatment, fibrous fillers, etc., to achieve the effects of high degree of automation, strong process controllability, and improved bonding performance

Inactive Publication Date: 2009-05-13
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no patent report on the technology of modifying the surface of carbon nanotubes by using atmospheric pressure and normal temperature plasma

Method used

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  • Method for processing barometric pressure, normal-temperature plasma modification on carbon nano-tube surface
  • Method for processing barometric pressure, normal-temperature plasma modification on carbon nano-tube surface
  • Method for processing barometric pressure, normal-temperature plasma modification on carbon nano-tube surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take a certain amount of commercial carbon nanotubes and put them on the special transfer device of the plasma processing equipment. Schematic such as image 3 (or a channel for adding a plasma nozzle), the container or carrier is placed within a specific distance of 2 cm below the nozzle of the normal pressure and normal temperature plasma spray device (the design of the nozzle part of the channel is based on specific requirements), and the thickness of the nanopowder laying Lay it according to the thickness of 5 mm. Under the premise of turning on the normal pressure and room temperature plasma, the container or carrier moves at a specific speed. Realize that the carbon nanotubes can be processed in a helium plasma atmosphere with a power of 40 watts and 5 seconds. The transmission electron micrograph of the sample is shown in figure 1 . The hydrosol (0.5 / 1000 nanometer powder / water) that is formed by this sample left standstill 24 hours comparative experiment photo...

Embodiment 2

[0036] Take a certain amount of commercial carbon nanotubes and put them on the special transfer device of the plasma processing equipment. Schematic such as image 3 (or a channel for adding a plasma nozzle), the container or carrier is placed within a specific distance of 2 cm below the nozzle of the normal pressure and normal temperature plasma spray device (the design of the nozzle part of the channel is based on specific requirements), and the thickness of the nanopowder laying Lay it according to the thickness of 2-9 mm. Under the premise of turning on the plasma at normal pressure and room temperature, the container or carrier moves at a specific speed. Realize that carbon nanotubes can be processed in an oxygen plasma atmosphere with a power of 40 watts and 5 seconds. . The transmission electron micrograph of the sample is shown in figure 1 . The hydrosol (0.5 / 1000 nanometer powder / water) that is formed by this sample left standstill 24 hours comparative experiment ...

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Abstract

The invention relates to a processing method for modifying atmospheric pressure on the surface of a carbon nanometer tube and a normal temperature plasma, which comprises the following steps: placing the carbon nanometer tube on a special transmission device of a plasma processing device; spraying the e plasma to the surface of the carbon nanometer tube under the atmospheric pressure and the openenvironment, so that the carbon nanometer tube moves in the atmosphere of the plasma, wherein the processing power is 10W to 5000W and the time is 0.01s to 6000s; and then generating the surface modification of the carbon nanometer tube. The invention can directly improve the surface property, the structure and the shape of the carbon nanometer tube for one step under the atmospheric pressure andthe normal temperature, and has the advantages of strong process controllability, simple replacement process and less environmental pollution by adopting the dry process. The effect of isosexual repulsion is generated on the particle surface of the carbon nanometer tube, so that the possibility on the reunion of nanometer particles is reduced.

Description

technical field [0001] The invention belongs to the field of modification and preparation of carbon nanotube materials, in particular to a treatment method for carbon nanotube surface atmospheric pressure and normal temperature plasma modification. Background technique [0002] Due to the characteristics of size effect, surface effect, quantum effect, and macroscopic quantum tunneling effect, nanomaterials show remarkable characteristics different from general macroscopic materials in terms of optics, mechanics, electricity, and magnetism, and have developed rapidly in recent years. [0003] Carbon nanotubes have a unique topological structure, high specific strength, low axial expansion coefficient, unique thermal conductivity and electrical conductivity, etc. It is considered to be a new type of functional material and structural material with excellent performance. Carbon nanotubes have a unique structure , electrical, optical, magnetic and mechanical properties, and has ...

Claims

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Application Information

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IPC IPC(8): C01B31/02C09C1/44C09C3/04
Inventor 张迎晨吴红艳邱夷平
Owner DONGHUA UNIV
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