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Preparation method of nano-scale polymer composite fibers with fluorescence property

A technology of fluorescent performance and composite fiber, which is applied in the direction of fiber type, fiber treatment, chemical instruments and methods, etc., and can solve the problem of low fluorescence activity

Inactive Publication Date: 2021-05-18
湖北柏合药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the defects of low fluorescent activity of doped fibers prepared by traditional blend spinning method, the present invention adopts photopolymerization grafting technology to graft europium ion organic ligands on the surface of electrospun fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] a. Preparation of photopolymerizable europium ion organic complex: acrylic acid, diphenylmethane and dibenzoylmethane are dissolved in DMF, the amount of solvent can be within the conventional range in this field, and the pH value is adjusted to 5 , slowly drop the DMF solution of europium nitrate into the solution of acrylic acid, diphenylmethane and dibenzoylmethane, control the temperature at 30°C, and complete the dropwise addition in 25 minutes; after the dropwise addition, keep the temperature at 40°C for 35h, Precipitate with ethanol as a precipitant, filter the precipitate, wash with distilled water and ethanol, and dry in vacuum at a constant temperature to obtain an organic complex europium ion fluorescent material;

[0016] b. Preparation of photoinitiator-loaded nanofibers: dissolving the photoinitiator in the DMF solution of PAN, and preparing photosensitive nanofibers by electrospinning;

[0017] C. Dissolve the europium ion fluorescent ligand prepared in ...

Embodiment 2

[0019] a. Preparation of photopolymerizable europium ion organic complex: acrylic acid, diphenylmethane and dibenzoylmethane are dissolved in DMF, the amount of solvent can be within the conventional range in this field, and the pH value is adjusted to 6.5 , slowly drop the DMF solution of europium nitrate into the solution of acrylic acid, diphenylmethane and dibenzoylmethane, control the temperature at 40°C, and complete the dropwise addition in 30 minutes; after the dropwise addition, keep the temperature at 45°C for 40h, Precipitate with ethanol as a precipitant, filter the precipitate, wash with distilled water and ethanol, and dry in vacuum at a constant temperature to obtain an organic complex europium ion fluorescent material;

[0020] b. Preparation of photoinitiator-loaded nanofibers: dissolving the photoinitiator in the DMF solution of PAN, and preparing photosensitive nanofibers by electrospinning;

[0021] C. Dissolve the europium ion fluorescent ligand prepared i...

Embodiment 3

[0023] a. Preparation of photopolymerizable europium ion organic complex: acrylic acid, diphenylmethane and dibenzoylmethane are dissolved in DMF, the amount of solvent can be within the conventional range in this field, and the pH value is adjusted to 7.5 , slowly drop the DMF solution of europium nitrate into the solution of acrylic acid, diphenylmethane and dibenzoylmethane, control the temperature at 50°C, and complete the dropwise addition in 35 minutes; after the dropwise addition, keep the temperature at 50°C for 45h, Precipitate with ethanol as a precipitant, filter the precipitate, wash with distilled water and ethanol, and dry in vacuum at a constant temperature to obtain an organic complex europium ion fluorescent material;

[0024] b. Preparation of photoinitiator-loaded nanofibers: dissolving the photoinitiator in the DMF solution of PAN, and preparing photosensitive nanofibers by electrospinning;

[0025] C. Dissolve the europium ion fluorescent ligand prepared i...

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PUM

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Abstract

The invention discloses a preparation method of nano-scale polymer composite fibers with a fluorescence property. The preparation of a photopolymerizable europium ion organic complex: dissolving acrylic acid, diphenylmethane and dibenzoylmethane in dimethyl formamide(DMF), wherein the use amount of a solvent is in a conventional range in the field. According to the preparation method, electrospun photosensitive fibers are used as a template, europium ion ligands are grafted to the surfaces of the fibers through a photo-grafting method, and thus a fluorescent material with extremely large surface area is obtained. According to the prepared fluorescent material, the europium ion ligands with fluorescent activity are enriched on the surfaces of the fibers, and compared with the fluorescent material prepared by a doping method, the prepared fluorescent material has higher fluorescent activity; The method disclosed by the invention is simple in preparation process, simple to operate and high in repeatability.

Description

technical field [0001] The invention relates to a method for preparing a nanoscale polymer composite fiber with fluorescent properties, belonging to the field of polymer photosensitive materials. [0002] technical background [0003] Nanocomposite fiber material is a successful example of nanotechnology applied in the field of textile and chemical fiber. Its unique properties and functions make it a hot spot for scientific research and industrial development. On the basis of summarizing the research and application achievements at home and abroad this year, "Nanocomposite Fiber Materials" introduces the basic concept, research progress and development trend of nanocomposite fiber materials, the preparation and modification of functional nanomaterials for nanocomposite fibers , the processing method of nanocomposite fiber materials#basic structure and properties, and according to general fiber#high performance fiber, nanocomposite of biomass fiber and electrospun fiber, and ...

Claims

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Application Information

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IPC IPC(8): D06M10/10C09K11/06
CPCC09K11/06C09K2211/182D06M10/10D06M2101/28
Inventor 曹秀莉桂晨芸
Owner 湖北柏合药业有限公司
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