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A functionalized structural color dye and its preparation and application

A structural color, functionalized technology, applied in the direction of organic dyes, dyeing, textiles and papermaking, etc., to achieve the effect of saving preparation cost, simple process and strong universality

Active Publication Date: 2021-11-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Whether it is possible to combine nano-microspheres with sunscreen properties with structural color dyes assembled from nano-microspheres, thereby expanding the application range and use value of structural color dyes, has not yet been reported in the literature

Method used

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  • A functionalized structural color dye and its preparation and application
  • A functionalized structural color dye and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Using the emulsion polymerization method, prepare a monodisperse polystyrene-polymethyl methacrylate-polyacrylic acid with a particle size of 200nm as the shell and an octocrylene UV sunscreen as the core. The aqueous solution of the core-shell structure latex particles is diluted to the concentration 0.1wt% and uniform ultrasonic dispersion, then the polyester fabric is immersed in the above mixed solution, self-assembled at a temperature of 20 ° C and a humidity environment of 10% to obtain a structural color dye with UV sunscreen performance on the surface of the polyester fabric.

[0031] The ultraviolet absorption value of the structural color dye coated with octocrylene prepared in this example was tested, and another coating formed by the disordered arrangement of polystyrene-polymethyl methacrylate-polyacrylic acid monodisperse microspheres and Pure photonic crystal structural color coating as a reference comparison, the results are as follows figure 1 As shown...

Embodiment 2

[0034] Adopt the emulsion polymerization method, the monodisperse polystyrene that particle size is 500nm is prepared as shell, and avophenylhydrazone ultraviolet sunscreen is core-shell structure latex particle aqueous solution of core, is diluted to concentration and is 10wt% and ultrasonic dispersion is uniform, then The polyester fabric is immersed in the above mixed solution, and self-assembled at a temperature of 80°C and a humidity of 90% to obtain a structural color dye with ultraviolet sunscreening properties on the plastic surface. The SPF of the structural chromatic dye coated with sunscreen reaches 105, which proves that the structural chromatic dye coats the UV sunscreen well inside the structure and has a good UV sunscreen effect. The structural color coating of the dye prepared in this example exhibits a uniform and brilliant red color over a large area, and has excellent optical properties.

Embodiment 3

[0036] Adopt the emulsion polymerization method, the monodisperse polyacrylic acid that particle diameter is 300nm is the shell-p-aminobenzoic acid derivative ultraviolet sunscreen agent is the aqueous solution of the core-shell structure latex particle of core, is diluted to concentration and is 1wt% and ultrasonic dispersion is uniform, then The aluminum alloy substrate is immersed in the above mixed solution, and self-assembled at a temperature of 50°C and a humidity of 50% to obtain a structural color dye with ultraviolet sunscreen performance on the surface of the aluminum alloy. The SPF of the structural color dye coated with sunscreen agent reaches 145, which proves that the structural color dye covers the UV sunscreen agent well inside the structure and has a better UV sunscreen effect. The structural color coating of the dye prepared in this example exhibits a uniform and brilliant yellow-red color over a large area, and has excellent optical properties.

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Abstract

The invention relates to a functionalized structural color dye and its preparation and application. It is prepared by modifying the surface of monodisperse microspheres or coating them in the shell of monodisperse microspheres with UV sunscreen materials. The preparation method comprises: modifying the UV sunscreen materials The microsphere solution is obtained on the surface of the monodisperse microsphere or coated in the shell layer of the monodisperse microsphere, diluted to a concentration of 0.1-10 wt%, uniformly dispersed by ultrasonic, and then self-assembled on the base material to obtain. While endowing the structural color material with UV sun protection function, the present invention does not affect the optical properties and luster of the prepared structural color, and has wide-spectrum applicability to substrates with different compositions and microstructures; the process is simple and saves preparation Low cost, strong universality, and good application prospects.

Description

technical field [0001] The invention belongs to the technical field of functionalized structural color dyes, in particular to a structural color dye with ultraviolet sunscreen function and its preparation and application. Background technique [0002] Structural color (including photonic crystals and amorphous photonic crystals) is a three-dimensional periodic structure formed by spatially ordered / disordered arrangement of two or more dielectric materials with different refractive indices. For example, peacock feathers, butterfly wings, and brilliant opals are all structural color materials that widely exist in nature. Among them, monodisperse microspheres with a particle size of 100nm-500nm have become a common assembly unit for self-assembly to prepare photonic crystals due to the mature preparation process and simple assembly process. This gorgeous "structural color" derived from their own nanometer and micrometer periodic structure has the characteristics of environment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P3/52D06P3/60D06P3/00C09B67/02C03C17/28B05D7/24B05D7/14B05D7/02B05D7/00B05D5/00
CPCB05D5/00B05D7/00B05D7/02B05D7/14B05D7/24B05D2202/25B05D2202/45B05D2203/35C03C17/006C03C17/28C03C2217/42C03C2217/74C03C2218/111C09B67/0013C09B67/0097D06P1/00D06P3/00D06P3/52D06P3/60
Inventor 石小迪吴连超
Owner DONGHUA UNIV
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