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Fibre structure of carbon nano tube/nano oxide nano composite material and preparation method and use thereof

A nano-composite material and composite fiber technology, applied in the fields of botanical equipment and methods, materials for heat exchange, chemical instruments and methods, etc., can solve the problem of difficult application, difficulty in fixing and separating nanoparticles, and easy aggregation of nanoparticles. issues of sex

Inactive Publication Date: 2010-05-12
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the large-scale application of carbon nanotube / nano-oxide hybrid materials still has great obstacles to overcome: firstly, these extremely small nanoparticles are very easy to agglomerate and it is difficult to show their superiority, so how to disperse these nanoparticles well is a very important problem; in addition, due to the difficulty of immobilizing and separating these extremely small nanoparticles, it is difficult to apply them in practical processes; in addition, the toxicity of nanoparticles due to their easy inhalation and high penetration (Toxicological Sciences 2004; 77:126~34; Nature Materials 2006; 5:245~8) is also a big challenge

Method used

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  • Fibre structure of carbon nano tube/nano oxide nano composite material and preparation method and use thereof
  • Fibre structure of carbon nano tube/nano oxide nano composite material and preparation method and use thereof
  • Fibre structure of carbon nano tube/nano oxide nano composite material and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056]15 parts by weight of carbon nanotubes (diameter 10-20nm, length 1-10μm) are dispersed in 100 parts by weight of ethanol by ultrasound, then 100 parts by weight of n-butyl titanate are added, and after mixing, 150 parts by weight of nano oxides are added to form As auxiliary agent acetic acid, after magnetically stirring for 0.5 h, the dispersion was mixed with 100 parts by weight of ethanol solution in which 30 parts by weight of polyvinylpyrrolidone was dissolved, and mixed uniformly after magnetically stirring for 1 hour to obtain a dispersion. Then the dispersion is contained in the liquid storage tank of the metering pump, and the resulting fiber (polyvinylpyrrolidone / carbon nanotube / titanium dioxide precursor) is collected at a sample injection rate of 1mL / h under the condition of an electric field strength of 1kV / cm on a grounded aluminum foil collector plate. Then, the polyvinylpyrrolidone is removed by calcining at 300-800° C. for 1 h, and finally a carbon nanot...

Embodiment 2

[0058] 10 parts by weight of fluorinated single-walled carbon nanotubes (diameter 1-2nm, length 0.5-5μm) are dispersed in 100 parts by weight of water by ultrasound, then 50 parts by weight of isopropyl titanate are added, and 10 parts by weight of nanometer Hydrochloric acid as an auxiliary agent for oxide formation, after magnetic stirring for 1 hour, the dispersion was mixed with 100 parts by weight of ethanol solution in which 30 parts by weight of polyvinyl acetate was dissolved, and after magnetic stirring for 1 hour, the mixture was uniformly mixed to obtain a dispersion. Then the dispersion is contained in the liquid storage tank of the metering pump, with a sample injection speed of 1mL / h, under the condition of an electric field strength of 3kV / cm, the obtained fiber (polyvinyl acetate / carbon nanotube / titanium dioxide precursor) Collect on a grounded aluminum foil collection plate. Then, polyvinyl acetate / carbon nanotubes / titanium dioxide hybrid nanofibers were obtai...

Embodiment 3

[0060] 10 parts by weight of a mixture of single-walled carbon nanotubes and multi-walled carbon nanotubes (1 to 20 nm in diameter and 1 to 15 μm in length) are dispersed in 100 parts by weight of ethanol by ultrasonic waves, then 50 parts by weight of zirconium acetate are added, and stirred under magnetic conditions for 0.5 h Finally, the dispersion was mixed with 100 parts by weight of ethanol solution in which 20 parts by weight of polyvinyl alcohol was dissolved, and mixed evenly after magnetic stirring for 10 hours to obtain a dispersion. Then the dispersion was filled in the liquid storage tank of the metering pump, and the mixture was mixed at a rate of 5 mL / h. The injection speed is 2kV / cm, and the obtained fibers (polyvinyl alcohol / carbon nanotubes / zirconia) are collected on a grounded aluminum foil collection plate. Then, they are removed by calcining at 600°C for 1h Polyvinyl alcohol, and finally get the carbon nanotube / zirconia hybrid nanofiber film. The carbon nan...

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Abstract

The invention relates to a fiber structure of nanometer composite material of carbon nanometer pipe / nanometer oxide or polymer / carbon nanometer pipe / nanometer oxide, which is characterized in that: disperse the precursor of the carbon nanometer pipe and nanometer oxide into a polymer solution to obtain a dispersion liquid; then, perform electric filature to obtain a polymer / carbon nanometer pipe / nanometer oxide with a precursor of nanometer fiber structure. The precursor of the nanometer oxide can be converted into a nanometer oxide with such methods as hydrothermal process, high-temperature process or microwave process, etc. The polymer can be kept or eliminated through such methods as high-temperature process or solvent fractionating and etc, so as to obtain the nanometer fiber of carbonnanometer pipe / nanometer oxide. The fiber composed of the composite material fiber structure, or films made of the fiber can be utilized in the fields of sewage process, air purification, solar energy battery and antibiotic material, etc.

Description

technical field [0001] The invention belongs to the nanocomposite field of carbon nanotube / nano oxide, in particular to carbon nanotube / nano oxide, or the fiber structure of the nanocomposite material of polymer / carbon nanotube / nano oxide, and by this fiber The film (non-woven fabric) constituted, and the preparation method and application of the fiber structure of the nanocomposite material. Background technique [0002] Carbon Nanotubes, also known as carbon nanotubes, carbon nanotubes, carbon nanotubes, fuller tubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes or bucky tubes, etc. , is a quasi-one-dimensional material with a special structure. Carbon nanotubes can be divided into single-walled carbon nanotubes (SWNT) and multi-walled carbon nanotubes (MWNT) according to the number of graphite-like layers constituting the tube wall. The production methods of carbon nanotubes are divided into arc discharge, laser ablation, and chemical vapor dep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F6/92D01F6/90D01F6/46D01F6/44D01F6/52D01F6/54C01B31/02D04H13/00C02F1/00C09K3/16C09K5/00A61L9/00H01L31/00B01D69/00A01N25/00
CPCY02A20/212Y02W10/37
Inventor 阳明书胡广君张世民孟祥福封喜彦丁艳芬张军华胡晓
Owner INST OF CHEM CHINESE ACAD OF SCI
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