Temperature-controlled structural color dye, and preparation and application thereof

A structural color and dye technology, which is applied to temperature-controlled structural color dyes and their preparation and application fields, to achieve the effects of reducing fluidity and environmental loss, good temperature control performance, and simple process

Inactive Publication Date: 2019-07-12
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 temperature control properties with structural color dyes assembled from na

Method used

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  • Temperature-controlled structural color dye, and preparation and application thereof
  • Temperature-controlled structural color dye, and preparation and application thereof
  • Temperature-controlled structural color dye, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Using the emulsion polymerization method, prepare a monodisperse polystyrene-polymethyl methacrylate-polyacrylic acid solution with a particle size of 100nm as the shell and paraffin as the core. The aqueous solution of the core-shell structure latex particles; 0.1wt% and ultrasonically dispersed uniformly, then the polyester fabric is immersed in the above mixed solution, self-assembled at a temperature of 20°C and a humidity of 10% to obtain a structural color dye with temperature control properties on the surface of the polyester fabric.

[0036] The phase transition enthalpy absorption value of the structural color dye coated with paraffin prepared in this embodiment is as follows: figure 1 As shown, it can be seen that the prepared structural color coating has a certain phase change enthalpy (144.3J / g) in the phase transition temperature range of paraffin n-hexadecane, which proves that the structural color dye can wrap the phase change material well. It is covere...

Embodiment 2

[0039]Using the emulsion polymerization method, prepare a particle diameter of 150nm monodisperse polystyrene as the shell, n-octadecane as the core-shell structure emulsion particle aqueous solution; dilute the above-mentioned microsphere solution to a concentration of 10wt% and ultrasonically disperse evenly, Then immerse the plastic substrate in the above mixed solution, and self-assemble under the environment of temperature of 80 DEG C and humidity of 90%, to obtain the structural color dye with temperature regulation performance on the surface of the plastic. The prepared structural color coating has a certain phase change enthalpy (251J / g) within the phase transition temperature range of paraffin n-decane, which proves that the structural color dye coats the phase change material well inside the structure and It has good temperature control effect. The structural color coating of the dye prepared in this example exhibits a uniform and brilliant blue-purple color over a l...

Embodiment 3

[0041] Using the emulsion polymerization method, the monodisperse polyacrylic acid with a particle size of 300nm is used as the shell, and polyethylene glycol is the core-shell structure latex particle aqueous solution of the core; 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 temperature regulation performance on the surface of the aluminum alloy. The prepared structural color coating has a certain phase change enthalpy (215J / g) within the phase transition temperature range of polyethylene glycol, which proves that the structural color dye coats the phase change material well inside the structure and has a relatively Good temperature regulation effect. The structural color coating of the dye prepared in this example exhibits a uniform and brilliant yellow-green color over a large area, and has excellent optical properties.

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Abstract

The invention relates to a temperature-controlled structural color dye, and preparation and application thereof. The temperature-controlled structural color dye has a core-shell structure taking a monodisperse microsphere as a shell and a phase change material as a core. The preparation method comprises the following steps: diluting a latex particle aqueous solution having the core-shell structuretaking the monodisperse microsphere as the shell and the phase change material as the core to a concentration of 0.1 to 10 percent by weight, and uniformly and ultrasonically dispersing the latex particle aqueous solution, and then self-assembling the latex particle aqueous solution on a base material. Good temperature regulation performance is imparted to a structural color material without affecting the optical properties and color of the obtained structural color, and the temperature-controlled structural color dye has broad spectrum applicability to different compositions and structural base materials; the process is simple, and the preparation cost is reduced; the temperature-controlled structural color dye is high in universality and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of functionalized structural color materials, and in particular relates to a temperature-controlled structural color dye 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 environmental fri...

Claims

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Application Information

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IPC IPC(8): C09K9/02C09K9/00C09K5/06D06P1/52D06P1/651D06P3/52D06P3/60C08J7/04C08J7/00
CPCC08J7/00C08J7/04C09K5/063C09K9/00C09K9/02D06P1/5221D06P1/65162D06P3/52D06P3/60
Inventor 石小迪吴连超
Owner DONGHUA UNIV
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