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Method for preparing fluorescent fiber membrane

A technology of fluorescent fibers and fluorescent dyes, applied in the fields of chemical characteristics of fibers, preparation of spinning solutions, chemical instruments and methods, etc., can solve the problems of complex synthesis routes, limited potential for industrialization development, limited varieties of dyes, etc., and achieve simple synthesis reactions. , Excellent linear optical performance, high yield effect

Active Publication Date: 2013-06-05
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthetic route is complex and the dyes to choose from are limited, which limits the potential of its industrial development.

Method used

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  • Method for preparing fluorescent fiber membrane
  • Method for preparing fluorescent fiber membrane
  • Method for preparing fluorescent fiber membrane

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The preparation of fluorescent dye styrene pyridinium salt specifically relates to trans-4-[4'-(N, N-dihydroxyethylamino) styryl]-N-ethylpyridinium bromide salt (DHEASPBr-C 2 ) preparation:

[0030] (1) 4-N, the synthesis of N-diethanolamine benzaldehyde: Weigh N, N-bishydroxyphenethylamine (0.15mol, 27.189g) and pyridine (0.45mol, 36.43mL) and acetic anhydride (0.45mol, 42.48mL) in a round bottom flask, under N 2 Under protection, reflux and stir the reaction for 5 hours. After the reaction, the solution is poured into ice water, purified with ethyl acetate, and anhydrous MgSO 4 After drying, N,N-diacetoxyphenethylamine was obtained. POCl 3 (0.0876mol, 9.06mL) was poured into the constant pressure funnel, and then 2It was dropped into DMF (0.365mol, 31.63mL) in an ice-bath environment while stirring under protection. After the drop was completed, it was left at room temperature for 30min, and then N,N-diacetoxybenzene dissolved in a small amount of DMF (0.365mol, 3...

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Abstract

The invention discloses a method for preparing fluorescent fiber membrane, in particular to a method taking derivatives of styrene pyridinium as fluorescent dye to blend with polyving akohol (PVA) to prepare spinning solution and perform electrostatic spinning. The method comprises the following steps: taking styrene pyridinium as fluorescent dye, mixing the fluorescent dye with the mass concentration of 1-10% (fluorescent dye / PVA) into PVA water solution, and then performing electrostatic spinning to obtain the orange fluorescent fiber membrane. The styrene pyridinium provided by the invention has good liner optical property, good water solubility and good consistency with PVA water solution; the highest reflectivity of the obtained fibrous membranes is more than 100%, and the wavelengthcorresponding to the max peak is 605nm; and the fluorescent emission spectrum excited by laser with the excitation wavelength of 254nm is within the range of 500-750nm, and CIE color coordinate calculated value is within a yellowish orange fluorescent zone, thus having application prospect.

Description

technical field [0001] The invention relates to a method for preparing a fiber film with fluorescent properties, in particular to a method of using a styrene pyridinium salt derivative as a fluorescent dye, blending it with polyvinyl alcohol (PVA) to prepare a spinning stock solution and performing electrospinning , which belongs to the field of polymer material application and textile engineering technology. Background technique [0002] Fluorescence is a photoluminescence phenomenon, which is the radiation released when a substance is deactivated from an excited state to a lower energy state of the same multiplicity. When ultraviolet light (or some kind of light) is irradiated on the fluorescent substance, the substance will absorb energy consistent with its characteristic frequency, and transition from the ground state to the excited state with higher energy, and the molecules in the unstable excited state will be In a short period of time, the relaxation is transferred ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06D01D1/02D01F6/50D01F1/06
Inventor 秦传香陈国强王筱梅席文杰赵满才
Owner SUZHOU UNIV
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