Polyolefin/rare earth complex/carbonate composite fluorescent material and preparation method thereof
A technology of rare earth complexes and composite fluorescence, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., to achieve the effects of labor saving, simple method, and improvement of fluorescence emission intensity
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Embodiment 1
[0095] Ultrasonic dispersion of 10g calcium carbonate in absolute ethanol for 1 hour;
[0096]Dissolve 1mmol of terbium chloride and 3mmol of 4-chlorobenzoic acid into 10mL of absolute ethanol;
[0097] The above two solutions were mixed, put into a 250 mL three-necked flask, heated to 80° C. while stirring, and refluxed, and the reaction time was 2 hours;
[0098] After the reaction was completed, after the heating was stopped, the precipitate in the solution was filtered out and dried in an oven for 2 hours, and the drying temperature was set to 80° C. to obtain a 4-chlorobenzoic acid terbium complex / calcium carbonate complex.
Embodiment 2
[0100] Dissolve high-density polyethylene (HDPE) into toluene at a temperature of 100 °C, and prepare an HDPE toluene solution with an HDPE concentration of 5.007 mg / mL;
[0101] Disperse 2g of the terbium 4-chlorobenzoate complex / calcium carbonate complex of Example 1 in the HDPE toluene solution, ultrasonically disperse, and then stir at a temperature of 100 ° C for 1 hour;
[0102] After the reaction is completed, the mixture is stirred to room temperature, the precipitate is filtered out with suction, dried in an oven, and the drying temperature is 80° C. to obtain HDPE / 4-chlorobenzoate terbium complex / calcium carbonate composite fluorescent material, and its infrared spectrum analysis is as in the experiment. Example 1.
Embodiment 3~7
[0104] The methods used in Examples 3 to 7 are similar to those in Example 2, except that the concentrations of the prepared HDPE toluene solutions were 10.18 mg / mL, 15.02 mg / mL, 20.12 mg / mL, 25.18 mg / mL, and 30.32 mg / mL, respectively. .
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