Carbon nanotube rodlike nanocomposite material modified by organic spherical silica and preparation method thereof

A technology of spherical silica and nanocomposite materials, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve problems such as unsuitable dispersion, limited application range, easy agglomeration of silica nanoparticles, etc., to achieve The product has the advantages of good structural unity, clear appearance and low cost

Active Publication Date: 2015-12-23
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional silica nano-spherical particles have high specific surface area and good mechanical properties, but silica nanoparticles are easy to agglomerate and not suitable for dispersion, so its application range is limited

Method used

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  • Carbon nanotube rodlike nanocomposite material modified by organic spherical silica and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First add 25ml of DMF to a 100ml single-necked flask, then add 1.2ml of organic spherical silica DMF sol and ultrasonically 20min to obtain a dilute organic silica sol solution, take a 100ml single-necked flask, add 40ml of DMF, and then add 20mg of carbon nanotubes to ultrasonically disperse for 2h. With the organic spherical silica DMF sol dilute solution that has been ultrasonicated at room temperature, use a constant pressure dropping funnel and drop the organic spherical silica DMF sol dilute solution at a rate of 1 to 3 drops per second to the constantly stirring In dilute carbon nanotube DMF solution, stir and react for 1h, then ultrasonically disperse for 30min, then continue to stir and react at room temperature for 10~12h, after the reaction is completed, ultrasonically for 1h, then filter with a 220nm organic filter, wash with DMF, and then ultrasonically disperse in In 150ml of DMF, the suction filtration was repeated 3 times until the redundant organic spher...

Embodiment 2

[0023] First add 25ml of DMF to a 100ml single-necked flask, then add 1.6ml of organic spherical silica DMF sol and ultrasonically 20min to obtain a dilute organic silica sol solution, take a 100ml single-necked flask, add 40ml of DMF, and then add 20mg of carbon nanotubes to ultrasonically disperse for 2h. With the organic spherical silica DMF sol dilute solution that has been ultrasonicated at room temperature, use a constant pressure dropping funnel and drop the organic spherical silica DMF sol dilute solution at a rate of 1 to 3 drops per second to the constantly stirring In dilute carbon nanotube DMF solution, stir and react for 1h, then ultrasonically disperse for 30min, then continue to stir and react at room temperature for 10~12h, after the reaction is completed, ultrasonically for 1h, then filter with a 220nm organic filter, wash with DMF, and then ultrasonically disperse in In 200ml of DMF, the suction filtration was repeated 3 times until the excess organic spherica...

Embodiment 3

[0025] First add 20ml of DMF to a 100ml single-necked flask, then add 0.7ml of organic spherical silica DMF sol and ultrasonically 20min to obtain a dilute organic silica sol solution, take a 100ml single-necked flask, add 40ml of DMF, and then add 20mg of carbon nanotubes to ultrasonically disperse for 2h. With the organic spherical silica DMF sol dilute solution that has been ultrasonicated at room temperature, use a constant pressure dropping funnel and drop the organic spherical silica DMF sol dilute solution at a rate of 1 to 3 drops per second to the constantly stirring In dilute carbon nanotube DMF solution, stir and react for 1h, then ultrasonically disperse for 30min, then continue to stir and react at room temperature for 10~12h, after the reaction is completed, ultrasonically for 1h, then filter with a 220nm organic filter, wash with DMF, and then ultrasonically disperse in In 100ml of DMF, the suction filtration was repeated 3 times until the redundant organic spher...

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Abstract

The invention discloses a carbon nanotube rodlike nanocomposite material modified by organic spherical silica and a preparation method thereof. The carbon nanotube rodlike nanocomposite material modified by the organic spherical silica is characterized in that organic spherical silica nanoparticles with amidogen react with a carboxyl functional group on the surface of an oxidized carbon nanotube through the amidogen to form amido bond, and therefore covalently-bound carbon nanotube rodlike nanocomposite material modified by the organic spherical silica is obtained, wherein the mass ratio of the oxidized carbon nanotube to the organic spherical silica nanoparticles with the amidogen is 1:2-15, and the organic spherical silica nanoparticles with the amidogen are of a core-shell structure that the surface of the core of silica is coated with the amidogen. The technology is easy and convenient to implement, the reaction period is short, the obtained material is regular in structure, clear in appearance, high in productivity and purity and good in stability, has the certain organic compatibility and can be used for polymer modification prepared high-performance nanocomposite materials such as thermosetting resin, thermosetting resin and rubber. The method is compact in technology, low in cost and short in reaction time, and the product is good in structure oneness and suitable for large-scale industrial production.

Description

field of invention [0001] The invention relates to a carbon nanotube rod-shaped nanocomposite material and a preparation method thereof, in particular to a carbon nanotube rod-shaped nanocomposite material modified by organic spherical silica and a preparation method thereof. Background technique [0002] Carbon nanotubes have rapidly become a research hotspot in the fields of chemistry, materials science, and biology because of their unique structural characteristics, super strong mechanical properties, unique photoelectric properties, large specific surface area, and excellent adsorption properties. Carbon nanotubes have extremely attractive application prospects, especially in the field of composite materials. In recent years, many scholars have combined them with polymer materials and achieved some remarkable results. Since the structure of carbon nanotubes is similar to the sheet structure of graphene, they have good electrical properties. In addition, carbon nanotubes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/02C08K7/24C09C1/44C09C3/06
Inventor 付继芳宗培松殷金涛尚大鹏陆琦余文琪陈立亚施利毅
Owner SHANGHAI UNIV
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