PDP fluorescent powder slurry relieving or preventing color PDP fluorescent powder from thermal degradation when baking screen
A phosphor and rare-earth phosphor technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of inability to conduct heat, slurry splash, phosphor layer damage, etc., to avoid the problem of slurry splash and low residue Ash content, effect of low degradation temperature
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Embodiment 1
[0014] Step 1: Selection of spare raw materials
[0015] Raw materials: organic resin - acrylic resin, organic solvent butyl carbitol acetate, cyclobutanone, auxiliary silicone dispersant, PDP rare earth fluorescent red powder: molecular formula (Y, Gd) BO 3 :Eu 3+ , relative brightness of phosphor powder: 104, color coordinate X: 0.6441, color coordinate Y: 0.3556. Use X-ray fluorescence spectrometry (XRF) to carry out element weight content analysis and determination on relevant raw materials, and select Na, K, Fe, Cl, Pb, S raw materials with element weight content <100ppm for use. Use a thermogravimetric analyzer (TGA) and a differential scanning calorimeter (DSC) to measure the thermal decomposition temperature of the relevant raw materials, and use an ash analyzer to measure the residual ash of the relevant raw materials after burning at 420°C for 30 minutes to ensure the residual ash of the relevant raw materials <1‰.
[0016] Step 2: Preparation process
[0017] Th...
Embodiment 2
[0025] Step 1: Selection of spare raw materials
[0026] Raw materials: organic resin - alkyd resin, organic solvent butyl acetate, dimethylformamide DMF, silicone dispersant. PDP rare earth fluorescent blue powder: Molecular formula BaMgAl 10 o 27 :Eu 2+ , relative brightness of phosphor powder: 106, color coordinate X: 0.1511, color coordinate Y: 0.0554. Use X-ray fluorescence spectrometry (XRF) to analyze and measure the element weight content of relevant raw materials, and select the raw materials with Na, K, Fe, Cl, Pb, S element weight content <100ppm for use. Use a thermogravimetric analyzer (TGA) and a differential scanning calorimeter (DSC) to measure the relevant thermal decomposition temperature, and use an ash analyzer to measure the residual ash of the relevant raw materials after burning at 420 ° C for 30 minutes to ensure that the residual ash of the relevant raw materials < 1‰.
[0027] Step 2: Preparation process
[0028] The preparation of PDP rare earth ...
Embodiment 3
[0036] Step 1: Selection of spare raw materials
[0037] Raw materials: organic resin - vinyl resin, organic solvent DBE, cyclobutanone), dispersing aid silicone dispersant. PDP rare earth fluorescent green powder: Molecular formula BaMgAl 12 o 19 :Mn 2+ , relative brightness of phosphor powder: 101, color coordinate X: 0.1454, color coordinate Y: 0.7470. Use X-ray fluorescence spectrometry (XRF) to carry out element weight content analysis and determination on relevant raw materials, and select Na, K, Fe, Cl, Pb, S raw materials with element weight content <100ppm for use. Use a thermogravimetric analyzer (TGA) and a differential scanning calorimeter (DSC) to measure the thermal decomposition temperature of the relevant raw materials, and use an ash analyzer to measure the residual ash of the relevant raw materials after burning at 420°C for 30 minutes to ensure the residual ash of the relevant raw materials <1‰.
[0038] Step 2: Preparation process
[0039] The prepara...
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