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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

Inactive Publication Date: 2019-11-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, non-iridescent structural color film coatings have disadvantages such as poor water resistance and weather resistance. use will be limited

Method used

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  • Preparation method of super-hydrophobic non-iridescence structural color film
  • Preparation method of super-hydrophobic non-iridescence structural color film
  • Preparation method of super-hydrophobic non-iridescence structural color film

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Experimental program
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Effect test

Embodiment 1

[0033] A method for preparing a highly saturated non-iridescent structural color film with superhydrophobic properties, comprising the following steps:

[0034] SiO with a diameter of 232nm 2 Disperse in ethanol, prepare the ethanol dispersion liquid that mass fraction is 10%, add mass accounted for SiO2 to dispersion liquid 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres was magnetically stirred at room temperature for 30 minutes to fully mix the suspension. The suspension was placed in a 40°C water bath for hydrophobic treatment for 10 hours. Finally, the fluorinated SiO 2 Collected by centrifugation at 6000rpm for 15 minutes. Disperse graphene with a particle size of 5 μm in ethanol to prepare a 0.8mg / ml ethanol dispersion, and then use an ultrasonic cell pulverizer to ultrasonically treat it at 650w, 25KHz for 30 minutes to ensure that graphene can be fully dispersed in ethanol solution. Graphene ethanol suspension. The above fluorinat...

Embodiment 2

[0036] SiO with a diameter of 267 nm 2 Disperse in ethanol, prepare the ethanol dispersion liquid that mass fraction is 10%, add mass accounted for SiO2 to dispersion liquid 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres was magnetically stirred at room temperature for 30 minutes to fully mix the suspension. The suspension was placed in a 40°C water bath for hydrophobic treatment for 10 hours. Finally, the fluorinated SiO 2 Collected by centrifugation at 6000rpm for 15 minutes. Disperse graphene with a particle size of 5 μm in ethanol to prepare a 0.8mg / ml ethanol dispersion, and then use an ultrasonic cell pulverizer to ultrasonically treat it at 650w, 25KHz for 30 minutes to ensure that graphene can be fully dispersed in ethanol solution. Graphene ethanol suspension. The above fluorinated SiO2 Colloidal microspheres, SiO 2 The mass fraction of the colloidal microspheres is 0.6% graphene ethanol suspension dispersed in the ethanol soluti...

Embodiment 3

[0038] SiO with a diameter of 317 nm 2 Disperse in ethanol, prepare the ethanol dispersion liquid that mass fraction is 10%, add mass accounted for SiO2 to dispersion liquid 2 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane with 3% mass of colloidal spheres was magnetically stirred at room temperature for 30 minutes to fully mix the suspension. The suspension was placed in a 40°C water bath for hydrophobic treatment for 10 hours. Finally, the fluorinated SiO 2 Collected by centrifugation at 6000rpm for 15 minutes. Disperse graphene with a particle size of 5 μm in ethanol to prepare a 0.8mg / ml ethanol dispersion, and then use an ultrasonic cell pulverizer to ultrasonically treat it at 650w, 25KHz for 30 minutes to ensure that graphene can be fully dispersed in ethanol solution. Graphene ethanol suspension. The above fluorinated SiO 2 Colloidal microspheres, SiO 2 The mass fraction of the colloidal microspheres is 0.6% graphene ethanol suspension dispersed in the ethanol solu...

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Abstract

The invention relates to a preparation method of a super-hydrophobic non-iridescence structural color film, and belongs to the technical field of photonic crystal film preparation. The preparation method comprises the following steps of firstly, carrying out hydrophobic treatment on colloidal microspheres by using solvent with low surface energy; then, mixing black nano particles and a hydrophobiccolloidal microsphere emulsion according to a certain ratio, and uniformly dispersing the mixture in ethanol to form an emulsion; then, placing the emulsion on a base bottom by drip coating, spin coating, dip coating, lifting, spraying and ink jet printing; and carrying out drying at room temperature to form a non-iridescence structural color material with high saturation, high brightness and hydrophobic property. According to the method, the color saturation of the non-iridescence structural color material is remarkably improved by virtue of the absorption effect of the black nano particleson non-coherent scattered light caused by an unordered optical structure; through the hydrophobic treatment, a non-iridescence structure color film has a good hydrophobic characteristic, and the contact angle is 150 degrees or above; and the method has practical application in the fields of decoration, anti-counterfeiting, cosmetic packaging, artware, billboard and the like.

Description

technical field [0001] The invention belongs to the technical field of photonic crystal film preparation, and in particular relates to a preparation method for improving the brightness and saturation of non-iridescent structures and endowing them with superhydrophobic properties by using black particles and hydrophobic treatment. It belongs to the field of structural color material preparation. Background technique [0002] Colors in nature are rich and colorful, and are very important to the lives of animals and humans. At present, the color is mainly divided into two categories, one is pigment color, and the other is structural color. Most of the colors of the products we use in our lives come from pigment colors. Pigment color is the color produced by pigments, and pigment molecules exhibit different colors by selectively absorbing visible light of specific wavelengths. Structural color is a kind of physical color, which is the color produced by light scattering, inter...

Claims

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Application Information

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IPC IPC(8): B05D5/00B05D5/06B05D7/24
CPCB05D5/00B05D5/06B05D7/24
Inventor 王国勇孙宁魏素凤连建设江忠浩李光玉韩双
Owner JILIN UNIV
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