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Organic carbon nanotube coated with thin polymer film on surface and preparation method thereof

A polymer film, organic carbon technology, applied in chemical instruments and methods, dyeing polymer organic compound treatment, dyeing physical treatment and other directions, can solve the problems of limited practical application, difficult dispersion of carbon nanotube reinforcement materials, etc. The effect of interface and compatibility, easy availability of raw materials, and easy industrialization

Inactive Publication Date: 2012-11-21
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nature of carbon nanotubes determines that it is difficult to disperse well in the polymer matrix as a reinforcing material, which greatly limits the practical application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1), place the mass of 0.2g carbon nanotubes and 4.0g maleic anhydride in the plasma deposition furnace, and pump the background vacuum to 1×10 -3 After Pa, argon gas with a purity of 99.999% was introduced, and the pressure of the vacuum chamber was adjusted to 13Pa;

[0026] (2), under the plasma power of 20W, discharge treatment for 20min, and then introduce oxygen with a purity of 99.999% for 5min;

[0027] (3), the cathode is heated to 100 ℃, and then treated in the plasma atmosphere for 30min, the plasma source is closed, and the powdery solid product is taken out;

[0028] (4), vacuum filtration of the powdered solid product obtained in step (3), wash with acetone for 5 times until it is pure, and vacuum dry at 80 ° C for 6 hours to obtain an organic carbon nanometer with polymaleic anhydride film grafted on the surface. Tube.

[0029] Electron microscope results show that the thickness of the polymaleic anhydride film coated on the surface of carbon nanotubes ...

Embodiment 2

[0031] In step (1), the carbon nanotubes were weighed 0.05g, maleic anhydride was 2.0g, and the vacuum chamber pressure was 30Pa, and other conditions and steps were exactly the same as in Example 1, to obtain a surface grafted polymaleic anhydride film. Organic carbon nanotubes.

[0032] The electron microscope results show that the thickness of the polymaleic anhydride film coated on the surface of carbon nanotubes with a diameter of 10-20 nm is about 45 nm. Infrared spectrum of the product at 1782 and 1872 cm -1 Weak characteristic absorption peaks of maleic anhydride are observed at wavenumbers.

Embodiment 3

[0034] In step (1), 0.3 g of carbon nanotubes, 6.0 g of maleic anhydride, and 10 Pa of vacuum chamber pressure are taken. The steps are exactly the same as in Example 1, and the organic carbon nanotubes with the polymaleic anhydride film grafted on the surface are obtained.

[0035] Electron microscope results show that the thickness of the polymaleic anhydride film coated on the surface of carbon nanotubes with a diameter of 10-20 nm is about 10 nm. Infrared spectrum of the product at 1783 and 1875 cm -1 Weak characteristic absorption peaks of maleic anhydride are observed at wavenumbers.

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Abstract

The invention discloses an organic carbon nanotube coated with a thin polymer film on the surface and a preparation method thereof. The preparation method comprises the following steps of: putting a carbon nanotube and a polymer monomer in a plasma deposition furnace after the carbon nanotube and the polymer monomer are weighed, introducing argon gas into the furnace after vacuumizing and adjusting the pressure of a chamber; discharging under plasma power and then introducing oxygen gas; heating a cathode, processing in plasma atmosphere, closing the plasma source and taking powdered solid out; and filtering the powdered solid in vacuum, washing acetone to a pure state and obtaining the organic carbon nanotube coated with the thin polymer film on the surface by vacuum drying. The method has the characteristics of simpleness, economy, environmental protection, easy industrialization and the like. The obtained organic carbon nanotube has high degree of functionalization and provides a new approach for surface modification, unwrapping and disaggregation of the carbon nanotube.

Description

technical field [0001] The invention belongs to the technical field of carbon materials, and in particular relates to an organic carbon nanotube coated with a polymer film on the surface and a preparation method thereof. Background technique [0002] In recent years, carbon nanotubes have excellent mechanical, electrical, thermal, magnetic and other properties due to their high aspect ratio and nano-scale diameter, and can be widely used in high-tech fields such as electronics, chemical industry, energy, and aerospace. However, the nature of carbon nanotubes determines that it is difficult to disperse well in the polymer matrix as a reinforcing material, which greatly limits the practical application. This raises a new topic for scientists, and it is urgent for people to seek practical ways to make full and effective use of carbon nanotubes. SUMMARY OF THE INVENTION [0003] Aiming at the defects existing in the existing carbon nanotube reinforcing material application te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/44C09C3/00C09C3/04C09C3/10C08F292/00
Inventor 贾润萍张英强张栋华李晓洁王洁菲
Owner SHANGHAI INST OF TECH
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