Novel pearlescent pigment and preparation method thereof
A pearlescent pigment, a new type of technology, applied in the preparation of dyed pigments by PVD/CVD method, inorganic pigment processing, chemical instruments and methods, etc., can solve the problems of low extinction coefficient, difficult to apply pearlescent pigment outer coating, etc., to achieve wear resistance Good performance, improve thermal stability, improve wear resistance
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Example Embodiment
[0011] Example 1:
[0012] Put 50g of 10-30 micron mica flake powder into the magnetron sputtering vacuum chamber, evacuate, and pass in 50sccm argon and 25sccm nitrogen. A metal aluminum with a purity of 99.5% is used as a sputtering target, a sputtering current is set to 8A, and the reactive sputtering time is controlled for 20 minutes, and an aluminum nitride coating with a thickness of about 1 micron is coated on the surface of the mica sheet. After finishing, take out the powder to obtain 10-30 micron natural mica-based aluminum nitride pearlescent pigment. The appearance color of the aluminum nitride pearlescent pigment is milky white, and the pearlescent effect is similar to that of the pearlescent pigments of the same particle size on the market.
Example Embodiment
[0013] Example 2:
[0014] Put 60g of 90-230 micron glass flake powder into the magnetron sputtering vacuum chamber. Vacuum was applied, and 70 sccm argon gas and 42 sccm nitrogen gas were introduced. Metal aluminum with a purity of 99.9% was used as the sputtering target, and the sputtering current was set to 10A. Control the reaction sputtering time for 30 minutes, and coat the surface of the glass flakes with a thickness of about 0.1 micron aluminum nitride coating. After finishing, take out the powder to obtain 90-230 micron glass flake-based aluminum nitride pearlescent pigment. The aluminum nitride pearlescent pigment has high shimmering sharpness, the appearance color is transparent and slightly milky white, and the appearance effect is close to that of the glass substrate pearlescent pigments on the market.
Example Embodiment
[0015] Example 3:
[0016] Put 20g of 90-230 micron glass flake powder into the magnetron sputtering vacuum chamber. Vacuum was applied, and 40 sccm argon gas and 16 sccm nitrogen gas were introduced. A metal aluminum with a purity of 99.8% was used as a sputtering target, and the sputtering current was set to 7A. Control the reaction sputtering time for 60 minutes, and coat the surface of the glass flakes with a thickness of about 0.5 micron aluminum nitride coating. After finishing, take out the powder to obtain 1-10 micron artificial synthetic mica-based aluminum nitride pearlescent pigment. The aluminum nitride pearlescent pigment has a delicate effect, the appearance color is milky white, and the spraying effect is consistent with the same substrate and particle size pearlescent pigments on the market.
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