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Preparation method of composite luminescent fiber nanomaterial

A technology of luminescent fibers and composite nanoparticles, applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc., can solve problems such as the difficulty in preparing oriented fiber bundles or single nanofibers, and achieve luminous intensity and photobleaching resistance Reinforcement, high orientation, and strong chemical stability

Inactive Publication Date: 2011-11-23
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] ①The 0.106g rare earth complex Eu(DBM) prepared by wet chemical method 3 Phen was dissolved in 25.0g N, N dimethylformamide, after ultrasonic dispersion for 30min, continued to add 2.40g of SDS (dissolved in 96.0g of water to form a solution), after the solution was homogenized, add styrene mono Body 5.32g, adjust the ultrasonic radiation power 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 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 complex obtained in step ① was demulsified with absolute ethanol, and centrifuged, washed repeatedly with deionized water and absolute ethanol, and vacuum-dried at 80°C for 8.0h to obtain Eu(DBM) 3 PhenPS composite nanoparticle powder;

[0044] ③The 1.0g Eu(DBM) prepared in step ② 3 PhenPS composite nanoparticle powder was...

Embodiment 2

[0046] ①The 0.106g rare earth complex Tb(acac) prepared by wet chemical method 3 Dissolve Phen in 25.0g of N,N dimethylformamide, continue to add 2.40g of SDS (dissolved in 96.0g of water to make a solution) into the solution, and 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°C, and the reaction time is 1.5h, the rare earth complex Tb(acac) 3 Phen embedded in the polymer to form a core-shell structure Tb(acac) 3 PhenPS complex; the whole reaction needs to be in high-purity N 2 under protection.

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

[0048] ③The 1.0g Tb(acac) prepared in step ② 3 PhenPS co...

Embodiment 3

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

[0051] ②The complex obtained in step ① was demulsified with absolute ethanol, and centrifuged, washed repeatedly with deionized water and absolute ethanol for 4-6 times, and vacuum-dried at 80°C for 8...

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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-luminescent fiber material. Background technique [0002] Electrospinning is a simple and effective method for preparing one-dimensional nanomaterials, and it has been widely used to prepare polymer fibers, ceramic fibers, carbon fibers and various functional composite fibers. This method has advantages incomparable to other methods, 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, long diameter The ratio is very large. In recent years, some research groups at home and abroad have successively introduced electrospinning technology into the field of optical nanomaterials research, and prepared a series of functional inorganic nanofibers and polymer nanofibers dope...

Claims

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Application Information

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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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