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Preparation method of coloured glaze of photonic crystal structure

A technology of photonic crystal and structural color, which is applied in the field of preparation of photonic crystal structural color glaze, can solve the problems of large pollution and difficult control of glaze color, and achieve the effect of not easy to variegated color and glaze spot, high crystallinity and bright color

Inactive Publication Date: 2019-01-11
周晓东
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Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problem that the traditional glaze color has large pollution and is difficult to control, a preparation method of photonic crystal structure colored glaze is provided

Method used

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Embodiment Construction

[0023] Take 3-5g of ammonia water with a mass fraction of 20-25%, 25-30g of absolute ethanol, add 60-80g of deionized water, stir at 300-400r / min at 40-50°C for 20-30min, then add 1.0-2.4 g zinc acetate, stirring and heating to 70-80°C for 1-2 hours to obtain a mixed solution, and dropwise adding 40-60 g of 5-10% tetrabutyl titanate ethanol solution to the mixed solution at 1-2 g / min , continue stirring at 500-600r / min until the dropwise addition is complete, then stir and react at 80-90°C for 3-5h, cool naturally to room temperature and filter to obtain the filter residue, wash the filter residue with absolute ethanol and deionized water in turn for 2-2~ 3 times, and placed in a drying oven, dried at 60-80°C to constant weight to obtain monodisperse microspheres, take 1-2g of monodisperse microspheres, add 50-100g of absolute ethanol, and use 180-240W ultrasonic Ultrasonic dispersion for 10 to 15 minutes to obtain a dispersion liquid. Soak the ceramic substrate in 20 to 40% h...

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Abstract

The invention relates to a preparation method of coloured glaze of a photonic crystal structure, and belongs to the technical field of coloured glaze preparation. According to the invention, zinc oxide nanocrystal primary particles nucleate firstly, and then form polycrystalline colloidal particles by mutual aggregation with titanium dioxide particles; because the interiors of the nanoparticles ofa core-shell structure are rearranged, spherical photonic crystals with high crystallinity, large specific surface area and uniform shape, and relatively high refractrive index are formed finally, and therefore, the orderness of a photonic crystal periodic structure is improved; because the photonic crystals have a plurality of pores in the surface, capillary force generally vertically facing thesurface of a porcelain body is generated to colloid particles, and such force causes microspheres to be balanced in stress, so as to tend to a thermodynamic equilibrium state more easily, and therefore, the microspheres are more dense and orderly in arrangement, and the color of the film of structural color is more gorgeous; the method disclosed by the invention is simple and practical, environment-friendly, and suitable for industrial production and has wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of a photonic crystal structure color glaze, belonging to the technical field of color glaze preparation. Background technique [0002] Structural color is a color produced by the reflection, interference or diffraction of light by matter, which is a new direction of color chemistry today. Structural color generation is mainly achieved through technologies such as dielectric layer stacking, etching lithography, and colloidal assembly. Among them, the colloidal assembly method is simple, easy, and relatively fast, and is currently the most widely used. Mainly, the colloidal microspheres are self-assembled in an orderly manner, so that high and low refractive index materials form alternately arranged photonic crystals. This photonic crystal has the characteristics of a photonic band gap, and the light in the forbidden band cannot irradiate the photonic crystal and is strongly reflected. , producing colors. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/87C04B41/91
CPCC04B41/5049C04B41/5315C04B41/87C04B41/91C04B41/4535C04B41/5041C04B41/0072
Inventor 周晓东张桂芳骆兵建
Owner 周晓东
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