Blue fluorescence fiber used for plasma display panel and preparation method thereof
A display panel, blue fluorescence technology, applied in the direction of fluorescent layer, chemical characteristics of fibers, chemical instruments and methods, etc., can solve the problem of long discharge delay time of plasma display screen, reduce the discharge delay time, improve performance, reduce energy consumption effect
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[0017] According to a typical implementation of the present invention, the preparation method of the blue fluorescent fiber for plasma display panel includes the following steps: 1) Weighing polyvinyl chloride particles and adding them to N,N-dimethylacetamide and tetrahydrofuran 2) adding fluorescent powder into the polyvinyl chloride solution and mixing evenly to obtain a spinning stock solution; and 3) preparing the spinning stock solution by electrospinning to obtain fluorescent fibers, wherein the fluorescent Powder is BaMgAl 10 o 17 :Eu 2+ pink. The preparation method of the blue fluorescent fiber for plasma display panel of the present invention prepares the fluorescent fiber by electrospinning, so that the fluorescent fiber has tip discharge performance, therefore, it can be used as an auxiliary ionization source, thereby reducing the discharge of the plasma display panel The delay time can effectively improve the performance of the plasma display and reduce its ene...
Embodiment 1
[0025] Phosphor BaMgAl 10 o 17 :Eu 2+ The powder is prepared by the following steps:
[0026] 1) will be in accordance with BaMgAl 10 o 17 :Eu 2+ The stoichiometric ratio in is weighed barium nitrate, magnesium nitrate, aluminum nitrate, europium nitrate, adds citric acid solution and mixes uniformly to obtain mixed solution, wherein, the mol ratio of citric acid and nitrate ion is 0.8: 1;
[0027] 2) heating the solution to 70° C. and stirring for 2 hours, and keeping the pH of the mixed solution between 5 by adding ammonia water;
[0028] 3) Raise the temperature of the mixed solution to 90° C., stir, and wait until the solvent in the mixed solution is evaporated to obtain a xerogel; and
[0029] 4) Calcining the xerogel in a reducing atmosphere at a temperature of 720°C to obtain BaMgAl 10 o 17 :Eu 2+ Powder, the reducing atmosphere is that the gas contains 6% hydrogen by volume and nitrogen in the balance.
[0030] BaMgAl 10 o 17 :Eu 2+ powder at an excitation...
Embodiment 2
[0037] Phosphor BaMgAl 10 o 17 :Eu 2+ The powder is prepared by the following steps:
[0038] 1) will be in accordance with BaMgAl 10 o 17 :Eu 2+ The stoichiometric ratio in is weighed barium nitrate, magnesium nitrate, aluminum nitrate, europium nitrate, adds citric acid solution and mixes uniformly to obtain mixed solution, wherein, the mol ratio of citric acid and nitrate ion is 1.2: 1;
[0039] 2) heating the solution to 80° C. and stirring for 2 hours, and keeping the pH of the mixed solution between 6 by adding ammonia water;
[0040] 3) Raise the temperature of the mixed solution to 90° C., stir, and wait until the solvent in the mixed solution is evaporated to obtain a xerogel; and
[0041] 4) Calcining the xerogel in a reducing atmosphere at a temperature of 800°C to obtain BaMgAl 10 o 17 :Eu 2+ Powder, the reducing atmosphere is that the gas contains 1% hydrogen by volume fraction and nitrogen in the balance.
[0042] BaMgAl 10 o 17 :Eu 2+ powder at an e...
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Abstract
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