Blue light polarizing thin film and preparation method thereof as well as blue light backlight source and liquid crystal display device
A polarizing film and backlight technology, applied in polarizing elements, chemical instruments and methods, optics, etc., can solve the problems of difficulty in controlling the uniformity of luminescent films, increased difficulty in synthesizing luminescent materials, and many luminescent substances
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Embodiment 1
[0021] Embodiment 1. Preparation of blue light polarizing film
[0022] 1.1 Preparation of magnesium aluminum hydrotalcite
[0023] Magnesium aluminum hydrotalcite, its structural formula is Mg 2 Al(OH) 6 NO 3 LDH ([Mg 2 Al(OH) 6 NO 3 ].xH 2 O), weigh Mg(NO 3 ) 2 ·6H 2 O and Al(NO 3 ) 3 ·6H 2 O, and then they were dissolved in 100 mL of deionized aqueous solution in which Mg(NO 3 ) 2 ·6H 2 The concentration of O was controlled at 0.02mol / L, transferred to a three-necked flask, stirred under nitrogen protection, titrated with 0.5mol / L NaOH solution to pH=8.0, and the mixed solution was transferred to a reaction kettle and reacted in an oven at 80°C for 48h After the reaction, the product was centrifuged, washed and dried to obtain the target product Mg 2 Al(OH) 6 NO 3 LDH.
[0024] 1.2. Preparation of magnesium aluminum hydrotalcite solution
[0025] Take 1gMg 2 Al(OH) 6 NO 3 LDH was added into 100 mL of formamide and stirred for 16 h to obtain a formamid...
Embodiment 2
[0039] Embodiment 2. Preparation of blue light polarizing film
[0040] 2.1 Preparation of magnesium aluminum hydrotalcite
[0041] Magnesium aluminum hydrotalcite, its structural formula is Mg 2 Al(OH) 6 NO 3 LDH ([Mg 2 Al(OH) 6 NO 3 ].xH 2 O). Weigh Mg(NO 3 ) 2 ·6H 2 O and Al(NO 3 ) 3 ·6H 2 O, and then they were dissolved in 100 mL of deionized aqueous solution in which Mg(NO 3 ) 2 ·6H 2 The concentration of O was controlled at 0.12mol / L, transferred to a three-necked flask, stirred under nitrogen protection, titrated with 0.5mol / L NaOH solution to pH = 10.5, and the mixed solution was transferred to a reaction kettle and reacted in an oven at 160°C 10h, after the reaction, the product was centrifugally washed and dried to obtain the target product Mg 2 Al(OH) 6 NO 3 LDH.
[0042] 2.2. Preparation of magnesium aluminum hydrotalcite solution
[0043] Take 2g Mg 2 Al(OH) 6 NO 3 LDH was added into 100 mL of formamide and stirred for 16 h to obtain a form...
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