High-refractive-index wear-resistant hardened coating composition and preparation method of hardened film thereof
A technology of mixture and slurry, applied in the direction of coating, etc., can solve the problems of affecting the strength and light transmittance of composite materials, high stability of phosphoric acid modifiers, difficult to remove modifiers, etc., to achieve a wide range of raw materials and easy availability , broaden the scope of use, the effect of high solid content
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[0039] Example 1
[0040] 1) Weigh 10 grams of basic zirconium carbonate and excess alkali to dissolve in water for hydrothermal reaction. After the reaction is completed, filter and wash the filter cake to a pH of about 10;
[0041] 2) Take all the filter cake with 2 ml of methyl acrylate and 20 ml of water into the bottle, stir and react at 60 degrees Celsius for 12 hours, filter and wash the filter cake twice after the reaction is completed;
[0042] 3) Dry the filter cake at 70 degrees Celsius for 10 hours to obtain zirconia powder;
[0043] 4) Add the powder to tetrahydrofuran to prepare a dispersion with a solid content of 10% by weight, add 10 microliters of N-B-(aminoethyl)-Γ-aminopropylmethyldimethoxysilane, and add magnets to the bottom of the bottle Then, it is placed on a magnetic stirrer and stirred for 4 hours at a speed of 100 revolutions per minute to obtain a product dispersion of organic phase nano-zirconia particles with a high degree of dispersion. Among them, the...
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[0045] Example 2
[0046] 1) Weigh 10 grams of basic zirconium carbonate and excess alkali to dissolve in water for hydrothermal reaction. After the reaction is completed, filter and wash the filter cake to a pH of about 10;
[0047] 2) Take all the filter cake with 2 ml of methyl methacrylate and 30 ml of water into the bottle, stir and react at 60 degrees Celsius for 24 hours, filter and wash the filter cake twice after the reaction is completed;
[0048] 3) Dry the filter cake at 70 degrees Celsius for 10 hours to obtain zirconia powder;
[0049] 4) Add the powder to tetrahydrofuran to prepare a dispersion with a solid content of 10wt%, add 10 microliters of Γ-aminopropyltriethoxysilane, add a magnet to the bottom of the bottle, and place it on a magnetic stirrer at 100 rpm. Stir and react for 1 hour at a speed of 1 minute to obtain a product dispersion of organic phase nano-zirconia particles with a high degree of dispersion. Among them, the size of the nanoparticles under the el...
Example Embodiment
[0051] Example 3
[0052] 1) Weigh 20 g of hydrated zirconium oxychloride and excess alkali to dissolve in water for a hydrothermal reaction. After the reaction is completed, filter and wash the filter cake to a pH of about 8;
[0053] 2) Take all the filter cake with 1 ml of methacrylic acid and 40 ml of water into the bottle, stir and react at 70 degrees Celsius for 4 hours, filter and wash the filter cake twice after the reaction is completed;
[0054] 3) Dry the filter cake for 8 hours at 80 degrees Celsius to obtain zirconia powder;
[0055] 4) Add the powder to toluene to prepare a dispersion with a solid content of 10% by weight, add 10 microliters of N-B-(aminoethyl)-Γ-aminopropylmethyldimethoxysilane, and add magnets to the bottom of the bottle Then, it is placed on a magnetic stirrer and stirred for 4 hours at a speed of 120 revolutions per minute to obtain the product high dispersion organic phase nano-zirconia particle dispersion. Among them, the size of the nanoparticles...
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