Method for preparing carbon nano tube/polymer nano composite material

A technology of nanocomposite materials and carbon nanotubes, which is applied in the field of nanometers, can solve problems such as carbon nanotube structure damage and complex processes, and achieve the effect of simple and practical preparation methods and improved performance

Inactive Publication Date: 2006-05-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods all need to chemically modify the surface of carbon nanotubes and connect special functional groups, so that the structure of carbon nanotubes is damaged and the process is complicated.

Method used

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  • Method for preparing carbon nano tube/polymer nano composite material
  • Method for preparing carbon nano tube/polymer nano composite material
  • Method for preparing carbon nano tube/polymer nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 1.22g of sodium metal, add it to 100ml of toluene, heat it to boil and vibrate vigorously to make the massive sodium metal into small particles with a diameter of less than 1mm, cool to room temperature, add dry tetrahydrofuran, add 3.5g of benzophenone, add 0.13 g of single-walled carbon nanotubes were stirred and reacted for 100 minutes. Take out the unreacted sodium metal, add styrene / methylstyrene (9:1), react at 20°C for 100 h, add ethanol to terminate the polymerization, collect the product, and dry it in vacuum to obtain 5.3 g of the product. Nano material properties: tensile strength 53.2MPa MPa, tensile modulus 3180MPa.

Embodiment 2

[0025] Take 1.8g of metal potassium and 1.2g of metal sodium, and add them to 100ml of dry tetrahydrofuran / toluene mixture (V / V=1:1), then add 9.1g of benzophenone and 0.11g of multi-walled carbon nanotubes, and stir After 30 hours, add 30ml of styrene, react at 100°C for 10min, add 10ml of methanol and 5ml of ethanol to terminate the reaction, filter, collect the product, and dry it in vacuum to obtain 4.6g of product. Nanomaterial properties: tensile strength 53.2MPa, tensile modulus 3510MPa.

Embodiment 3

[0027] Take 1.3g of potassium metal, add it to 100ml of toluene / tetrahydrofuran mixture (V / V=3:1), add 1.2g of benzophenone, add 0.1g of single-walled carbon nanotubes, stir at 25°C for 120h, add Methyl methacrylate / methyl acrylate / butyl acrylate 30ml (8:1:1), react at 50°C for 100h, add 10m of butanol to terminate the reaction, filter, collect the product, and dry it in vacuum to obtain 4.3g of product. Nanomaterial properties: tensile strength 62.2MPa, tensile modulus 3310MPa,

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Abstract

The invention relates to a preparation method of carbon nanometer tube/ polymer nanometer composite material in nanometer technique field. Metal and benzophenone are reacted into carbanion reactive species in the dry organic solvent. The reactive species reacts with the carbon nanometer tube to trigger vinyl monomer polymerization. Then alcohol is used to stop the reaction. The outcome is collected, dried. Then the carbon nanometer tube/ polymer nanometer composite material is gained. The metal is one or some of the kalium, natrium, and lithium. The vinyl monomer is styrene, methyl styrene, acrylonitrile, acrylic acid methyl ester, methyl acrylic acid methyl ester, and acrylic acid fat. In the carbon nanometer tube composite material of the invention, the polymer molecule is grafted to the tube wall of the carbon nanometer tube; the carbon nanometer tube and the polymer have great interaction; this can improve the capability of the material. The preparation method is simple and practical; and it does not need special chemical modification for the carbon nanometer tube.

Description

technical field [0001] The invention relates to a method in the field of nanotechnology, in particular to a method for preparing a carbon nanotube / polymer nanocomposite material. Background technique [0002] Carbon nanotubes have attracted great interest since their discovery due to their excellent mechanical and electrical properties. Dispersing carbon nanotubes in polymer materials to improve the mechanical and electrical properties of polymer materials is a hot spot in the field of nanocomposite research in recent years. The key to preparing carbon nanotube nanocomposites is to improve the dispersion of carbon nanotubes in polymers and enhance the interaction between carbon nanotubes and polymer materials. [0003] The preparation of carbon nanotube nanocomposites in the prior art mainly includes a blending method and an in-situ polymerization method on the surface of carbon nanotubes. Cadek.M, et al. disclosed a solution blending method to prepare polyvinyl alcohol / ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F12/08C08F4/00C08K3/04
Inventor 魏良明
Owner SHANGHAI JIAO TONG UNIV
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