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Structural color film with structural stability and high saturation and application thereof

A technology of structural color and polymer film, applied in the direction of coating, etc., can solve the problems of reducing the color saturation of photonic crystal structure and light structure color saturation, and achieve the advantages of short production cycle, low cost, simple and environmentally friendly preparation method Effect

Active Publication Date: 2021-05-11
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, although the above method enhances the structural stability, it significantly reduces the saturation of the photonic crystal structural color.
This is because the refractive index of fillers such as polymer adhesives is very close to that of commonly used nano-microspheres (silicon dioxide, polystyrene, etc.), thereby reducing the difference in refractive index and reducing the saturation of optical structural color.

Method used

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  • Structural color film with structural stability and high saturation and application thereof
  • Structural color film with structural stability and high saturation and application thereof
  • Structural color film with structural stability and high saturation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a method for preparing a composite structural color film composed of a single-layer bead array and a polymer film. The specific method is as follows:

[0033] Step (1) A plastic petri dish (10 cm × 10 cm in size) was selected as the substrate for film preparation, and was ultrasonically cleaned with ethanol and deionized water for 10 min, and dried under nitrogen gas for later use.

[0034] Step (2) Mix the PDMS precursor and curing agent (Dow Corning 184) at a mass ratio of 10:1, then add an appropriate amount of carbon black and stir evenly; then pour it into a plastic petri dish and let it level off, under vacuum conditions Remove air bubbles; finally put it in an oven at 80oC for 2 hours to obtain a black PDMS film.

[0035] Step (3) Put the PDMS membrane in step (2) into a low-temperature plasma treatment instrument for hydrophilization treatment (contact angle>150o), to obtain a hydrophilic PDMS membrane.

[0036] Step (4) Dilute the 600...

Embodiment 2

[0039] This embodiment provides a method for preparing a composite structural color film composed of a three-dimensional photonic crystal film and a polymer film. The specific method is as follows:

[0040] Step (1) A plastic petri dish (10 cm × 10 cm in size) was selected as the substrate for film preparation, and was ultrasonically cleaned with ethanol and deionized water for 10 min, and dried under nitrogen gas for later use.

[0041]Step (2) Mix the PDMS precursor and curing agent (Dow Corning 184) at a mass ratio of 10:1, then add an appropriate amount of carbon black and stir evenly; then pour it into a plastic petri dish and let it level off, under vacuum conditions Remove air bubbles; finally put in 80 o C oven cured for 2 h to obtain a black PDMS film.

[0042] Step (3) Put the PDMS membrane in step (2) into a low-temperature plasma treatment instrument for hydrophilization treatment (contact angle>150 o ), to obtain a hydrophilic PDMS membrane.

[0043] Step (4) ...

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Abstract

The invention relates to a structural color film with structural stability and high saturation. The composite film is obtained by combining different types of film materials. Specifically, the film is formed by compounding a colloidal crystal film and a polymer film material. The colloidal photonic crystal is assembled on a polymer film material, and the composite structural color film with high structural stability and high saturation structural color can be obtained through a proper heat treatment or light treatment process. The structural colors generated by the obtained composite structural color film have high structural stability and high saturation. The method has the advantages of being easy to operate, low in cost, environmentally friendly, good in universality and the like, and has potential application value in the fields of anti-counterfeiting, displaying, coating and the like.

Description

technical field [0001] The present invention relates to the preparation and application of a composite structural color film with structural stability and high saturation, in particular to a combination of a colloidal crystal film with structural stability and high saturation structural color and a polymer film material Composite structural color thin film and its application. Background technique [0002] Photonic crystals (PCs) are one of the important topics in optical research in the fields of physics and engineering in recent years, and are considered to be the development direction of next-generation optical devices, including lighting, display, optical communication, solar energy and even quantum information systems. It consists of periodic dielectrics, metal-dielectrics and even superconducting microstructures or nanostructures. By fabricating periodic structures from materials with different dielectric constants, photonic band gaps (PBGs) can be formed. Photonic b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/12C08L83/04C08K3/04
CPCC08J7/123C08J2383/04C08J2425/06C08K3/04C08J7/0427
Inventor 李明珠赖欣涛宋延林
Owner INST OF CHEM CHINESE ACAD OF SCI
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