Preparation method of color-superposed color coating of amorphous structure

An amorphous structure, color coating technology, applied in the direction of coating, device for coating liquid on the surface, silicon dioxide, etc., can solve the problems of cumbersome process, limitation, low controllability, etc., and achieve broad application prospects , mild conditions, low cost effect

Inactive Publication Date: 2017-12-22
NANTONG TEXTILE & SILK IND TECH RES INST
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Problems solved by technology

Even the structural superposition of photonic crystals is mostly layer-by-layer self-assembly, layer-transfer method, gravity self-assembly, etc. These methods require harsh experimental conditions, long experimental st

Method used

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  • Preparation method of color-superposed color coating of amorphous structure
  • Preparation method of color-superposed color coating of amorphous structure
  • Preparation method of color-superposed color coating of amorphous structure

Examples

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[0028] Example 1

[0029] (1) The SiO with a diameter of 167nm 2 Disperse into water to prepare an aqueous dispersion with a mass fraction of 1%. Take 2ml of the above water dispersion and put it into an ordinary ultrasonic atomizer. Use ordinary black kraft paper as the base. Place the kraft paper in the atomized gas for 20 minutes, with a deposition thickness of 4μm, and then dry it completely to form a circular first layer The amorphous structure color coating is blue with no angle dependence. Among them, the atomization condition is normal temperature, and the rate is ≥0.3ml / min.

[0030] (2) The SiO with a diameter of 236nm 2 Disperse into water to prepare water dispersions with a mass fraction of 1%. Take 2ml of the above-mentioned aqueous dispersion and put it into an ordinary ultrasonic atomizer. According to the conditions of step (1), deposit the atomized aqueous dispersion on the first layer of amorphous structure color coating with a deposition thickness of 4μm to for...

Example Embodiment

[0033] Example 2

[0034] (1) The SiO with a diameter of 167nm 2 Disperse into water to prepare an aqueous dispersion with a mass fraction of 1%. Take 2ml of the above water dispersion and put it into an ordinary ultrasonic atomizer. Using ordinary black kraft paper as the base, place the kraft paper in the atomized gas for 10 minutes, with a deposition thickness of 2μm, and then completely dry it to form a rectangular first layer Crystal structure color coating, which is cyan without angle dependence. Among them, the atomization condition is normal temperature, and the rate is ≥0.3ml / min.

[0035] (2) The SiO with a diameter of 236nm 2 Disperse into water to prepare water dispersions with a mass fraction of 1%. Take 2ml of the above aqueous dispersion and put it into an ordinary ultrasonic atomizer. According to the conditions of step (1), deposit the atomized aqueous dispersion on the first layer of amorphous structure color coating to form a rectangular second layer of non Cr...

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Abstract

The invention relates to a preparation method of a color-superposed color coating of an amorphous structure. The preparation method comprises the following steps of: dispersing colloidal microspheres, the diameters of which are 100-300nm, into water to obtain an aqueous dispersion; depositing the atomized aqueous dispersion to a substrate to form the color coating of the amorphous structure; and then continuously depositing an atomized aqueous dispersion of another dimensional microspheres on the surface of the color coating of the amorphous structure, wherein the coating deposited every time is partially superposed with the previously deposited one to form the color-superposed color coating of the amorphous structure. By means of a method of atomizing the colloidal microsphere aqueous dispersion, the colloidal microspheres form structures of short-range order and long-range disorder on the substrate, and the colors represented by the structure are free of angle dependency. The method provided by the invention is mild in condition, the depositing thickness of the coating can be relatively better controlled, the substrate is not damaged, and a multilayered compound structure is formed.

Description

technical field [0001] The invention relates to the technical field of preparation of structural color coatings, in particular to a method for preparing a color superimposed amorphous structural color coating. Background technique [0002] Structural color is a physical color phenomenon, which is formed by a series of interference, diffraction, scattering and other effects between light and microstructure. Structural color has the characteristics of stable color development and never fading. Not only that, it avoids environmental pollution caused by chemical dyeing, and has broad application prospects in the fields of fibers, cosmetics, display materials, and sensors. [0003] Structural color is mainly divided into two categories: photonic crystals and amorphous photonic crystals. Photonic crystals are microstructures that are periodically arranged by media with different refractive indices. The color is highly controllable, but it has a large angle dependence, that is, du...

Claims

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Application Information

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IPC IPC(8): B05D5/06C01B33/14
CPCB05D5/06B05D2202/00B05D2203/22B05D2502/00B05D2518/00C01B33/14
Inventor 张克勤李青松张亚峰仇卉卉左丽娜张素铭
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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