Simple preparation method for artificial opal
An opal and artificial technology, applied in the field of artificial opal preparation, can solve the problems of complex operation, a large amount of manpower and material resources, complex glue coating, etc., and achieve the effect of simple operation, less defects, and easy reuse
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Embodiment 1
[0022] The preparation of embodiment 1 colloidal bead solution
[0023] In parts by volume, mix 40 parts of absolute ethanol, 8 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 2 parts of ethyl orthosilicate in a 40-degree water bath after the temperature is stabilized, 40 parts Heating in a water bath for 4 hours, finally adding 40 parts of water and mixing evenly, then concentrating the system to the volume before adding water to obtain a seed sample.
[0024] In parts by volume, mix 2 parts of seed samples, 40 parts of absolute ethanol, 8 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 3 parts of orthosilicone in a 40-degree water bath after the temperature is stable. Ethyl acetate, heated in a water bath at 40°C for 4 hours and then cooled to room temperature to obtain a solution of colloidal beads, the particle size of the colloidal beads is 200-300 nanometers.
[0025] Related the...
Embodiment 2
[0026] The preparation of embodiment 2 colloidal bead solution
[0027] In parts by volume, mix 50 parts of absolute ethanol, 10 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 3 parts of ethyl orthosilicate in a 40-degree water bath after the temperature is stabilized, 40 parts Heating in a water bath for 4 hours, finally adding 50 parts of water, mixing evenly, then concentrating the system to the volume before adding water to obtain a seed sample.
[0028] In parts by volume, mix 3 parts of seed samples, 50 parts of absolute ethanol, 10 parts of deionized water, and 1 part of ammonia water (concentration of 30% by mass), and add 5 parts of orthosilicon after the temperature is stabilized in a 40-degree water bath Ethyl acetate, heated in a 40 degree water bath for 4 hours and then cooled to room temperature to obtain a solution of colloidal beads, the particle size of the colloidal beads is 400-500 nanometers.
Embodiment 3
[0029] The preparation of embodiment 3 artificial opal (photonic crystal)
[0030] see figure 2 , glass plate 2, glass plate 3 are polished and cleaned, glass plate 2, glass plate 3 are sandwiched with a polyethylene terephthalate film frame 4 with some notches 5, glass plate 2, glass plate 3 For clamping, the thickness of the polyethylene terephthalate film frame 4 is 20 micrometers, and the depth of the notch is about 180 nanometers. When processing the score, the score can be drawn on the film frame 4 manually with a cutter of a certain size.
[0031] The space surrounded by the glass plate 2, the glass plate 3 and the film frame 4 is the assembly pool, through the opening of the glass plate 2 above and the tube 1 glued to the opening, inject the colloidal beads prepared in Example 1 into the assembly pool For the solution, nitrogen gas is passed into the assembly pool through the pipe 1, and ultrasonic oscillation is carried out at intervals at the same time. After a p...
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Abstract
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