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Functional polymer nano composite material and preparation method and uses thereof

A nano-composite material and composite material technology, applied in the field of functional polymer nano-composite materials, can solve the problems of antibacterial function and other problems, and achieve the effect of controllable function, simple equipment and convenient performance

Active Publication Date: 2008-04-16
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since nano ultrafine particles are easy to agglomerate, this method cannot fundamentally solve the problem of dispersion of nanoparticles in polymers, so the resulting product may not achieve the maximum antibacterial function

Method used

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  • Functional polymer nano composite material and preparation method and uses thereof
  • Functional polymer nano composite material and preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) 0.63g of polyethylene terephthalate (PET) was dissolved in 3ml of a mixed solvent of trifluoroacetic acid and dichloromethane (v:v=1); 1ml of tetra-n-butyl titanate was added to 3ml of three In a mixed solvent of fluoroacetic acid and dichloromethane (v: v=1), after magnetically stirring at room temperature for 3 hours, mix the two, continue stirring for 30 minutes, and then add them into the needle tube of the electrospinning nozzle;

[0033] (2) Control the voltage between the spinneret of the electrospinning equipment and the collecting plate at 30kV, and collect the electrospun fibers with an aluminum foil plate. Air-dry the obtained electrospun fiber at room temperature for 24 hours, evaporate the solvent, then immerse in pure water at 70°C for 10 hours, take it out and dry it, and you can get the TiO-containing 2 PET / TiO with a particle size of 3nm 2 Photocatalytic nanocomposites. Scanning electron microscope photos as figure 1 shown.

Embodiment 2

[0035] (1) 0.63g polyethylene terephthalate (PET) is dissolved in 1ml trifluoroacetic acid and dichloroethane mixed solvent (v:v=1); 1ml tetra-n-butyl titanate is added to 2ml In the mixed solvent (v:v=1) of trifluoroacetic acid and dichloroethane, after magnetically stirring at room temperature for 3 hours, the two were mixed, and then added to the needle tube of the electrospinning nozzle after continuing to stir for 30 minutes;

[0036] (2) Control the voltage between the spinneret of the electrospinning equipment and the collecting plate at 30kV, and collect the electrospun fibers with an aluminum foil plate. Air-dry the obtained electrospun fiber at room temperature for 24 hours, evaporate the solvent, then immerse in pure water at 90°C for 15 hours, take it out and dry it, and you can get the TiO-containing 2 PET / TiO with a particle size of 3.7nm 2 Photocatalytic nanocomposites. Scanning electron microscope photos as figure 2 shown.

Embodiment 3

[0038] (1) 0.63g of polyethylene terephthalate (PET) was dissolved in 5ml of a mixed solvent of trifluoroacetic acid and dichloromethane (v:v=1); 1ml of tetra-n-butyl titanate was added to 1ml of three In the mixed solvent of fluoroacetic acid and dichloromethane (v: v=1), after magnetic stirring at room temperature for 3 h, mix the two, add 300 μL of chloroplatinic acid with a concentration of 0.05 mol / L, continue stirring for 30 min, and then add to the electrospinning In the needle tube of the silk nozzle;

[0039] (2) Control the voltage between the spinneret of the electrospinning equipment and the collecting plate at 30kV, and collect the electrospun fibers with an aluminum foil plate. Air-dry the obtained electrospun fibers at room temperature for 24 hours, and then undergo 300W microwave radiation for 3 minutes at a radiation frequency of 2 GHz to obtain TiO-containing fibers. 2 Particle size at 3nm, PtO 2 The mass percentage is 0.39% PET / TiO 2 Photocatalytic nanoco...

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Abstract

The present invention relates to a polymer nano-composite of the functional inorganic nano-particle with intermingle prepared by electrospinning method, and the use of the composite. The precursory sol of the functional inorganic nano-particle is prepared by the sol-gel method, and is mixed with the polymer solution to form spinning fluid, adding precursor of dopant if necessary, and then the mixed spinning fluid is sprayed on to the electric collecting board with the action of the electric field force by electrospinning method to obtain functional polymer nano-composite with intermingle. The equipment of the invention is simple, the operation is easy, the components, structure and characteristics of the composite is easy to control, the structure is stable, the inorganic nano-particle is dispersed uniformly. According to the difference of the functionality of the inorganic nano-particles, the composite can be used in conducting material, antistatic material, magnetic material, electrochromic material, photocatalysis and ecology environment material, antibiosis material and biomaterial.

Description

technical field [0001] The invention belongs to the field of functional polymer nanocomposite materials, and in particular relates to a polymer nanocomposite material containing doped functional inorganic nanoparticles prepared by an electrospinning method, and the application of the composite material. Background technique [0002] Inorganic nanoparticles refer to ultrafine particles of inorganic compounds with a particle size between 1 and 100 nm. Due to the nanoscale effect, large specific surface area, and highly activated state of surface atoms, inorganic nanoparticles have unique properties such as sound, light, heat, electricity, and magnetism. Therefore, polymer-based nanocomposites can be endowed with some special functionalities, such as antibacterial, anti-ultraviolet, anti-static, self-cleaning, photocatalysis, etc., by compounding with the polymer matrix. Especially with the continuous research and development of nanomaterials and the continuous progress of par...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L67/03C08L67/04C08L33/08C08L33/10C08L31/04C08L39/06C08L29/04C08L75/04C08L33/20C08K3/00D01D1/02D01D5/00H01B1/20C09K3/16A01N25/00
Inventor 阳明书孟祥福张世民胡广君张军华
Owner INST OF CHEM CHINESE ACAD OF SCI
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