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Preparation method of composite luminescent fiber nanomaterial

A technology of luminescent fibers and composite nanoparticles, which is applied in fiber processing, filament/thread forming, textiles and papermaking, etc. It can solve the problems of difficulty in preparing oriented fiber bundles or single nanofibers, and achieve luminous intensity and anti-light Enhanced bleaching ability, high luminous efficiency, and increased fluorescence lifetime

Inactive Publication Date: 2012-11-14
DALIAN JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of optics, except for the Xia.Y group in the United States, BaTiO was prepared by applying an auxiliary electric field and a magnetic field. 3 fiber[9] and TiO 2 Fiber [10], there are no further relevant literature reports, and the preparation of oriented fiber bundles or single nanofibers is still very difficult

Method used

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  • Preparation method of composite luminescent fiber nanomaterial
  • Preparation method of composite luminescent fiber nanomaterial
  • Preparation method of composite luminescent fiber nanomaterial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] ① 0.106g of rare earth complex Eu(DBM) prepared by wet chemical method 3 Phen was dissolved in 25.0g N,N dimethylformamide, and after ultrasonic dispersion for 30 minutes, 2.40g SDS (dissolved in 96.0g water to make a solution) was added to the solution. After the solution was homogenized, styrene monomer was added. 3.32g, adjust the ultrasonic radiation power to 600W to initiate the polymerization reaction, the reaction temperature is 25℃, the reaction time is 1.5h, the rare earth complex Eu(DBM) 3 Phen is embedded in the polymer to form a core-shell structure Eu (DBM) 3 PhenPS complex; the whole reaction needs to be in high purity N 2 Under protection.

[0043] ②The compound obtained in step ① was demulsified with absolute ethanol, separated by centrifugation, washed repeatedly with deionized water and absolute ethanol, and dried under vacuum at 80°C for 8.0 hours to obtain Eu(DBM) 3 PhenPS composite nano-particle powder;

[0044] ③The 1.0g Eu(DBM) prepared in step ② 3 Phen...

Embodiment 2

[0046] ① 0.106g of rare earth complex Tb(acac) prepared by wet chemical method 3 Dissolve Phen in 25.0g N,N dimethylformamide, continue to add 2.40g SDS (dissolved in 96.0g water to make a solution), ultrasonically disperse for 30min, after the solution is homogenized, add styrene monomer 5.32g, adjust the ultrasonic radiation power to 800W to initiate the polymerization reaction, the reaction temperature is 40℃, the reaction time is 1.5h, the rare earth complex Tb(acac) 3 Phen is embedded in polymer to form core-shell structure Tb(acac) 3 PhenPS complex; the whole reaction needs to be in high purity N 2 Under protection.

[0047] ②The compound obtained in step ① was demulsified with absolute ethanol, centrifuged, washed with deionized water and absolute ethanol 4 times, and dried under vacuum at 80°C for 8.0 hours to obtain Tb(acac) 3 PhenPS composite nano-particle powder;

[0048] ③The 1.0g Tb(acac) prepared in step ② 3 PhenPS composite nano-particle powder is uniformly dissolved ...

Embodiment 3

[0050] ① 0.1g of rare earth doped nanocrystalline YVO prepared by hydrothermal method 4 :Dy 3+ Disperse to 100ml with a concentration of 2×10 -3 mol / L citric acid solution, then add 48.0g N,N-dimethylformamide, ultrasonic dispersion for 1h, continue to add 0.204g azobisisobutyronitrile and 0.109g potassium persulfate to this solution, ultrasonic dispersion After 30 minutes, after the solution is homogenized, add 5.32g of styrene monomer, adjust the ultrasonic radiation power to 500W to initiate the polymerization reaction, the reaction temperature is 90℃, the reaction time is 3.0h, and the rare earth doped nanocrystalline YVO 4 :Dy 3+ Embedded in polymer to form core-shell structure YVO 4 :Dy 3+ PS complex; the whole reaction needs to be in high purity N 2 Under protection.

[0051] ②The compound obtained in step ① was demulsified with absolute ethanol, centrifuged, washed with deionized water and absolute ethanol 4-6 times, and dried in vacuum at 80°C for 8.0 hours to obtain YVO 4...

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Abstract

The invention discloses a preparation method of a composite luminescent fiber nanomaterial. The preparation method comprises the steps: reacting a rare earth complex or a rare-earth-doped nanocrystal with a polymer monomer to form a core-shell structured compound; demulsifying, separating and drying the compound to obtain a rare-earth complex-polymer or rare-earth-doped nanocrystal-polymer composite nanoparticle powder; and preparing the composite nanoparticle power into an electrospinning solution, and preparing the electrospinning solution into the composite luminescent fiber nanomaterial with an electrospining method. The invention provides a new approach to preparation of a rare-earth organic-inorganic composite fiber nanomaterial with good dispersity, high orientation property, strong chemical stability and high luminous efficiency. The composite luminescent fiber nanomaterial is about to achieve important application values in the fields of optical communication, laser, communication and transportation, sailing fire fighting, raining working, bioinstrumentation and biochip, submarine signal transmission and solar photovoltaic cells.

Description

Technical field [0001] The invention belongs to the field of new material preparation, and relates to a preparation method of a composite nano luminous fiber material. Background technique [0002] Electrospinning is a simple and effective method for preparing one-dimensional nanomaterials. It has been widely used to prepare polymer fibers, ceramic fibers, carbon fibers and various functional composite fibers. This method has advantages that other methods cannot match, such as cheap, convenient, simple equipment requirements, mild preparation conditions, simple process, no pollution to the environment, etc., and the material prepared by this method has uniform and controllable morphology and long diameter Ratio is great. In recent years, some research groups at home and abroad have introduced electrospinning technology into the field of optical nanomaterials, and prepared a series of functional inorganic nanofibers and polymer nanofibers doped with rare earth complexes. For exa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/10D01F6/56D01D5/00C08F112/08C08F120/14C08F126/10C08F120/56C08F2/44
Inventor 于洪全李涛吴艳波
Owner DALIAN JIAOTONG UNIVERSITY
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