Method for preparing plateau-climate-resisting UV luminous ink
A technology of luminescent ink and plateau climate, applied in the direction of ink, luminescent materials, chemical instruments and methods, etc., can solve the problems of poor weather resistance, fading, yellowing, etc.
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Embodiment 1
[0040] This embodiment provides a preparation method of UV luminescent ink resistant to plateau climate, which includes the following steps.
[0041] (1) Preparation of luminescent materials;
[0042] ①Weigh 0.02molSrCO 3 , 0.02mol Al 2 o 3 , 0.00004mol Eu 2 o 3 , 0.00001molDy 2 o 3 , 0.000005molTb 4 o 7 , 0.00002molSiO 2 and 0.004molH 3 BO 3 As a raw material, grind the raw material in a mortar for 30 minutes, put the uniformly mixed material in a crucible and sinter for 2 hours under a weak reducing atmosphere at 1200 ° C to obtain Tb 3+ , Si 4+ Co-doped modified SrAl with a particle size of 76 μm 2 o 4 :Eu 2+ , Dy 3+ Powder. A weakly reducing atmosphere includes, for example, 5% H 2 +95%N 2 Atmosphere, 5%, 95% refer to the volume ratio. This embodiment uses Tb 3+ , Si 4+ Co-doped modified SrAl 2 o 4 :Eu 2+ , Dy 3+ , the particle size of the obtained long-lasting luminescent material is micron level, and does not need to be broken during use.
[00...
Embodiment 2
[0056] This embodiment provides a preparation method of UV luminescent ink resistant to plateau climate, which includes the following steps.
[0057] (1) Preparation of luminescent materials;
[0058] ①Weigh 0.02molSrCO 3 , 0.02mol Al 2 o 3 , 0.00004mol Eu 2 o 3 , 0.00001molDy 2 o 3 , 0.000005molTb 4 o 7 , 0.00002molSiO 2 and 0.004molH 3 BO 3 As a raw material, grind the raw material in a mortar for 25 minutes, place the uniformly mixed material in a crucible and sinter for 2.5 hours under a weak reducing atmosphere at 1200 ° C to obtain Tb 3+ , Si 4+ The particle size of the co-doped modified SrAl is 80 μm 2 o 4 :Eu 2+ , Dy 3+ Powder. A weakly reducing atmosphere includes, for example, 5% H 2 +95%N 2 Atmosphere, 5%, 95% refer to the volume ratio.
[0059] ②Weigh 0.02mol Sr(NO 3 ) 2 , 0.04mol Al(NO 3 ) 3 9H 2 O, 20ml HNO 3 , 0.004mol H 3 BO 3 , 0.18mol NH 2 CH 2 COOH, 0.00004mol Eu 2 o 3 , 0.00004mol Dy 2 o 3 For raw materials, dissolve comple...
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