A temperature-responsive micro-nano patterned colloidal photonic crystal composite film and its preparation method
A technology of colloidal photonic crystals and temperature response, applied in optics, optical components, instruments, etc., can solve the problems of long reaction cycle, cumbersome steps, adaptability, accuracy, controllability and resolution of inkjet printing system And other problems, to achieve the effect of light transmittance reduction, light transmittance enhancement, excellent suppleness and adhesion
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Embodiment 1
[0068] Example 1 A colloidal photonic crystal composite film with temperature responsiveness and micro-nano patterning
[0069] 1. Preparation method
[0070] (1) Measured in order, accounting for 25% of the total volume of the mixture, aliphatic urethane acrylate (molecular weight 10000, viscosity 2000 cps), 5% 2-ethylhexyl acrylate, 5% n-acrylic acid Octyl esters, 5% isobutyl acrylate, 35% octadecyl methacrylate, 10% acetone, 5% chloroform, 5% toluene, 1% benzophenone, 1% 2,2 - Dimethylolpropionic acid, 1.5% tripropylene glycol diacrylate and 1.5% trimethylolpropane triacrylate, mix well to obtain a mixture; transfer the mixture into a grooved tetrafluoroethylene mold (groove The size is: length 4 cm × width 2 cm × height 0.1 cm), and then placed in a UV curing box for room temperature curing for 30 minutes (UV lamp with a wavelength of 365 nm as the light source, power 30W), after the reaction is complete, in the oven At a constant temperature of 60°C for 12 h, an opal ph...
Embodiment 2
[0074] Example 2 A colloidal photonic crystal composite film with temperature responsiveness and micro-nano patterning
[0075] 1. Preparation method
[0076] (1) Measured in order, accounting for 30% of the total volume of the mixture, aliphatic urethane acrylate (molecular weight 30000, viscosity 10000 cps), 10% n-butyl acrylate, 5% isobutyl acrylate, 35 % of octadecyl acrylate, 15% of acetone, 1% of diethyl phenyl phosphite, 1.5% of hydroxycycloethyl benzophenone and 2.5% of trimethylolpropane triacrylate, mixed evenly to obtain Mixed solution; move the mixed solution into a grooved tetrafluoroethylene mold (the groove size is: length 4cm×width 2cm×height 0.3cm), and then put it into a UV curing box for room temperature curing for 60 minutes (wavelength is 365 nm The ultraviolet lamp was used as the light source, and the power was 125 W). After the reaction was completed, the opal photonic crystal template was used for embossing in an oven at a constant temperature of 60 °...
Embodiment 3
[0081] Example 3 A colloidal photonic crystal composite film with temperature responsiveness and micro-nano patterning
[0082] 1. Preparation method
[0083] (1) Measured in order, accounting for 30% of the total volume of the mixture, aliphatic urethane acrylate (molecular weight: 100,000, viscosity: 500 cps), 10% acrylate-β-hydroxyethyl ester, 10% acrylate-β -Hydroxypropyl ester, 10% hexyl methacrylate, 25% octadecyl methacrylate, 5% tetrahydrofuran, 5% dichloromethane, 1% benzophenone, 0.5% benzoin dimethyl Ether and 3.5% tripropylene glycol diacrylate were mixed evenly to obtain a mixed solution; the mixed solution was moved into a grooved tetrafluoroethylene mold (groove size: length 4 cm × width 2 cm × height 0.5 cm), Then put it into a UV curing box and cure it at room temperature for 90 min (UV lamp with a wavelength of 365 nm is used as the light source, and the power is 1 KW). By embossing, a colloidal photonic crystal composite film with temperature responsivenes...
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