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Method for preparing magneto-optical difunctional two parallel strand composite nanofiber bundle

A composite nanofiber, dual-function technology, applied in fiber treatment, spinning solution preparation, fiber chemical characteristics, etc.

Inactive Publication Date: 2012-05-02
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no use of electrospinning technology to prepare Fe 3 o 4 / PVP / / Eu(BA) 3 Related reports on phen / PVP magneto-optic bifunctional two-strand parallel composite nanofiber bundles

Method used

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  • Method for preparing magneto-optical difunctional two parallel strand composite nanofiber bundle
  • Method for preparing magneto-optical difunctional two parallel strand composite nanofiber bundle
  • Method for preparing magneto-optical difunctional two parallel strand composite nanofiber bundle

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Embodiment Construction

[0023] The selected europium oxide Eu of the present invention 2 o 3 The purity is 99.99%, polyvinylpyrrolidone PVP, molecular weight 90000, N, N-dimethylformamide DMF, 1,6-ethylenediamine, anhydrous sodium acetate, ferric chloride hexahydrate, ethylene glycol, hydrochloric acid , Benzoic acid HBA, o-phenanthroline phen, absolute ethanol, NH 3 ·H 2 O is a commercially available analytically pure product; the glass instruments and equipment used are those commonly used in laboratories.

[0024] Example: Weigh 6.5g of 1,6-ethylenediamine, 2.0g of anhydrous sodium acetate, 1.0g of ferric chloride hexahydrate, add 30ml of ethylene glycol, heat and stir at 50°C for 30min, then transfer to a high-pressure reactor , heated at 200°C for 6h, centrifuged and washed 3 times with water, then vacuum-dried to obtain Fe 3 o 4 Nanoparticles. Weigh an appropriate amount of Eu 2 o 3 , dissolved in concentrated hydrochloric acid, heated and evaporated to dryness to obtain EuCl 3 , addin...

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Abstract

The invention relates to a method for preparing a magneto-optical difunctional two parallel strand composite nanofiber bundle, and belongs to the technical field of nanomaterial preparation. The method comprises the following four steps of: (1) preparing Fe3O4 nanoparticles by using a hydrothermal method; (2) preparing a Eu(BA)3phen complex by using a precipitation method; (3) preparing spinning solutions, namely preparing a spinning solution from a mixed solution of the Eu(BA)3phen complex, polyvinyl pyrrolidone (PVP) and dimethyl formamide (DMF), and preparing a spinning solution from a mixed solution of the Fe3O4 nanoparticles, PVP and DMF; and (4) preparing a Fe3O4 / PVP / / Eu(BA)3phen / PVP magneto-optical difunctional two parallel strand composite nanofiber bundle by adopting an electrostatic spinning technology and using parallel double spinning nozzles. The prepared Fe3O4 / PVP / / Eu(BA)3phen / PVP magneto-optical difunctional two parallel strand composite nanofiber bundle has a smooth surface and has good magnetism and luminosity, and the diameter of a single stranded nanofiber is 380nm. The two parallel strand composite nanofiber bundle with magneto-optical double functions and a novel structure can be importantly applied to future nanostructure devices and medical diagnosis and treatment. The method is simple and feasible, is suitable for mass production and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing two strands of parallel composite nanofiber bundles with magneto-optic dual functions. Background technique [0002] Nanofiber refers to a linear material with two dimensions in the nanoscale on the three-dimensional space scale of the material, usually the radial dimension is on the order of nanometers, and the length is relatively large. Since the radial scale of nanofibers is as small as nanometers, it shows a series of characteristics, the most prominent is the large specific surface area, which increases its surface energy and activity, and then produces small size effects, surface or interface effects, and quantum size effects. , macroscopic quantum tunneling effect, etc., and therefore exhibit a series of chemical and physical (heat, light, sound, electricity, magnetism, etc.) aspects of specificity. In the prior art, there are many...

Claims

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Application Information

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IPC IPC(8): D01F8/10D01F8/18D01D1/02D01D5/00
Inventor 董相廷盖广清宋红梅王进贤于文生刘桂霞
Owner CHANGCHUN UNIV OF SCI & TECH
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