Preparation method of super-hydrophobic non-iridescence structural color film
A super-hydrophobic, structural color technology, used in devices, coatings, special surfaces, etc. that apply liquid to the surface, can solve the problems of limited use, poor water resistance, poor weather resistance, etc., to improve color saturation, application Broad, hydrophobic effect
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[0032] Example 1
[0033] A method for preparing a high-saturation non-iridescent structural color film with super-hydrophobic properties, comprising the following steps:
[0034] SiO with a diameter of 232 nm 2 Disperse into ethanol, prepare a 10% ethanol dispersion, and add SiO to the dispersion 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres, and the suspension was thoroughly mixed by magnetic stirring at room temperature for 30 minutes. The suspension was hydrophobically treated in a 40°C water bath for 10 hours. Finally, fluorinated SiO 2 The samples were collected by centrifugation at 6000 rpm for 15 minutes. Graphene with a particle size of 5 μm was dispersed in ethanol to prepare a 0.8 mg / ml ethanol dispersion, and then ultrasonically treated with an ultrasonic cell pulverizer at 650w, 25KHz for 30 minutes to ensure that the graphene could be fully dispersed in the ethanol solution. Graphene ethanol suspension. The above fluorinat...
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[0035] Example 2
[0036] SiO with a diameter of 267 nm 2 Disperse into ethanol, prepare a 10% ethanol dispersion, and add SiO to the dispersion 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres, and the suspension was thoroughly mixed by magnetic stirring at room temperature for 30 minutes. The suspension was hydrophobically treated in a 40°C water bath for 10 hours. Finally, fluorinated SiO 2 The samples were collected by centrifugation at 6000 rpm for 15 minutes. Graphene with a particle size of 5 μm was dispersed in ethanol to prepare a 0.8 mg / ml ethanol dispersion, and then ultrasonically treated with an ultrasonic cell pulverizer at 650w, 25KHz for 30 minutes to ensure that the graphene could be fully dispersed in the ethanol solution. Graphene ethanol suspension. The above fluorinated SiO2 Colloidal microspheres, accounting for SiO 2 A graphene ethanol suspension with a mass fraction of colloidal microspheres of 0.6% was dispersed in...
Example Embodiment
[0037] Example 3
[0038] SiO with a diameter of 317 nm 2 Disperse into ethanol, prepare a 10% ethanol dispersion, and add SiO to the dispersion 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres, and the suspension was thoroughly mixed by magnetic stirring at room temperature for 30 minutes. The suspension was hydrophobicized in a 40°C water bath for 10 hours. Finally, the fluorinated SiO 2 The samples were collected by centrifugation at 6000 rpm for 15 minutes. Graphene with a particle size of 5 μm was dispersed in ethanol to prepare a 0.8 mg / ml ethanol dispersion, and then ultrasonically treated with an ultrasonic cell pulverizer at 650w, 25KHz for 30 minutes to ensure that the graphene could be fully dispersed in the ethanol solution. Graphene ethanol suspension. The above fluorinated SiO 2 Colloidal microspheres, accounting for SiO 2 A graphene ethanol suspension with a mass fraction of colloidal microspheres of 0.6% was dispersed in a...
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