CN110080011B - Functional structural color dye and preparation and application thereof - Google Patents

Functional structural color dye and preparation and application thereof Download PDF

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CN110080011B
CN110080011B CN201910269788.9A CN201910269788A CN110080011B CN 110080011 B CN110080011 B CN 110080011B CN 201910269788 A CN201910269788 A CN 201910269788A CN 110080011 B CN110080011 B CN 110080011B
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ultraviolet
structural color
color dye
microsphere
monodisperse
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CN110080011A (en
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石小迪
吴连超
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Donghua University
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    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0004—Coated particulate pigments or dyes
    • C09B67/0008—Coated particulate pigments or dyes with organic coatings
    • C09B67/0013—Coated particulate pigments or dyes with organic coatings with polymeric coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0097—Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
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    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/20—Metallic substrate based on light metals
    • B05D2202/25—Metallic substrate based on light metals based on Al
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/40—Metallic substrate based on other transition elements
    • B05D2202/45—Metallic substrate based on other transition elements based on Cu
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
    • B05D2203/35—Glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/40—Coatings comprising at least one inhomogeneous layer
    • C03C2217/42—Coatings comprising at least one inhomogeneous layer consisting of particles only
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2217/00—Coatings on glass
    • C03C2217/70—Properties of coatings
    • C03C2217/74—UV-absorbing coatings
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/10—Deposition methods
    • C03C2218/11—Deposition methods from solutions or suspensions
    • C03C2218/111—Deposition methods from solutions or suspensions by dipping, immersion

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Abstract

The invention relates to a functionalized structural color dye and preparation and application thereof, wherein an ultraviolet sunscreen material is modified on the surface of a monodisperse microsphere or coated in the shell layer of the monodisperse microsphere, and the preparation method comprises the following steps: modifying the ultraviolet sunscreen material on the surface of the monodisperse microsphere or coating the ultraviolet sunscreen material in the shell layer of the monodisperse microsphere to obtain a microsphere solution, diluting the microsphere solution to the concentration of 0.1-10wt%, uniformly dispersing by ultrasonic, and then self-assembling on a substrate to obtain the ultraviolet sunscreen material. The invention endows the structural color material with the ultraviolet sun-screening function, does not influence the optical property and the color and luster degree of the prepared structural color, and has broad-spectrum applicability to base materials with different compositions and microstructures; the method has the advantages of simple process, preparation cost saving, strong universality and good application prospect.

Description

Functional structural color dye and preparation and application thereof
Technical Field
The invention belongs to the technical field of functional structural color dyes, and particularly relates to a structural color dye with an ultraviolet sun-screening function, and preparation and application thereof.
Background
Structural colors (including photonic crystals and amorphous photonic crystals) are three-dimensional periodic structures formed by spatially ordered/disordered arrangements of two or more dielectric materials having different refractive indices. Such as peacock feathers, butterfly wings, gorgeous opals, which are structural color materials widely existing in nature. The monodisperse microsphere with the particle size of 100nm-500nm becomes a common assembly unit for preparing the photonic crystal by self-assembly due to mature preparation process and simple assembly process. The gorgeous 'structural color' derived from the nano-micron periodic structure of the dye has the characteristics of environmental friendliness, high brightness and saturation, wide spectral range, iridescence effect and permanent fading, is a novel structural color dye, can obtain a pollution-free dyeing process, fundamentally eliminates serious pollution caused by printing and dyeing on the environment, and enriches the textile printing and dyeing color system. At present, partial topic groups at home and abroad also begin to carry out preliminary research on the application of structural colors in the aspects of fabric finishing and dyeing, and prepare the structural colors of the bionic photonic crystal on the surfaces of various fabrics, metals, alloys, various composite materials and the like, so that certain research progress is achieved and good application prospects are shown. How to further functionalize the structural color dye has very important significance for expanding the application field of the structural color dye.
In daily life, in order to protect skin from ultraviolet rays in sunlight, a sunscreen agent, particularly a sunscreen cream, is added to various daily cosmetics, and in order to increase the sun protection index of a sunscreen product, a high-concentration ultraviolet ray absorber and a high-concentration ultraviolet ray shielding agent need to be added. However, most UV absorbers cause contact allergy or photoallergic reactions to the skin, and some UV absorbers may even cause carcinogenesis. The sun-proof microcapsule with the core-shell structure is obtained by coating the ultraviolet absorbent with the high molecular polymer, so that the stability of the core ultraviolet absorbent can be improved, the sun-proof performance of the core ultraviolet absorbent can be maintained, the contact of the ultraviolet absorbent and the skin can be reduced, and the stimulation of the ultraviolet absorbent to the skin can be reduced. In addition, the nano-sized sun-proof microcapsule has better transparency, dispersion stability and sun-proof performance due to the size effect, so that the sun-proof nano-capsule has wider application in daily chemical products.
Whether the nano microspheres with the sun-screening performance can be combined with the structural color dye assembled by the nano microspheres so as to expand the application range and the use value of the structural color dye is not reported in similar documents at present.
Disclosure of Invention
The invention aims to solve the technical problem of providing a structural color dye with an ultraviolet sun-screening function, and preparation and application thereof, and overcomes the defects of the traditional process of firstly dyeing by using the dye and then coating by using an ultraviolet sun-screening agent.
The functionalized structural color dye is prepared by modifying an ultraviolet sunscreen material on the surface of a monodisperse microsphere or coating the surface of the monodisperse microsphere in a shell layer of the monodisperse microsphere.
The particle size of the monodisperse microsphere is 100-500 nm; the monodispersity is less than 5 percent.
The monodisperse microspheres are commercially available or based on literature methods (emulsion polymerization method, in-situ induced reduction method or
Figure BDA0002018007400000021
Method) is carried out.
The monodisperse microsphere is a polymer microsphere or an inorganic nano microsphere.
The polymer microsphere is selected from one of polystyrene, polyacrylic acid, polystyrene-polyacrylamide, poly-N-isopropylacrylamide, polymethyl methacrylate-polyacrylic acid, polystyrene-polymethyl methacrylate-polyacrylic acid and polyacrylamide.
The inorganic nano-microsphere is selected from one of silicon dioxide, titanium dioxide, ferroferric oxide, ferric oxide, carbon and rare earth oxide.
The ultraviolet sunscreen material is selected from octocrylene, avobenzone, p-aminobenzoic acid derivatives, salicylic acid and derivatives thereof, cinnamate compounds, benzophenone compounds, anthranilate, dibenzoyl methane compounds or camphor.
The invention also provides a preparation method of the functional structural color dye, which comprises the following steps:
modifying the ultraviolet sunscreen material on the surface of the monodisperse microsphere or coating the ultraviolet sunscreen material in the shell layer of the monodisperse microsphere to obtain a microsphere solution, diluting the microsphere solution to the concentration of 0.1-10wt%, uniformly dispersing by ultrasonic, and then self-assembling on a substrate to obtain the ultraviolet sunscreen material.
The base material is metal, alloy, polymer material or inorganic non-metal material.
The metal is selected from Cu, Al, Ti or Fe, etc.; the alloy is selected from aluminum alloy, titanium alloy or stainless steel, etc.
The polymer material is selected from one or more of plastic, fiber and rubber.
The inorganic non-metallic material is selected from one of ceramic, glass and silicon chip.
The process conditions of the self-assembly are as follows: the temperature is 20-80 ℃ and the humidity is 10-90% in a constant temperature and humidity environment or a constant temperature environment.
The invention further provides application of the functional structural color dye in the field of ultraviolet sun protection.
According to the invention, the structural color dye is modified or coated with the material with the ultraviolet sunscreen function, so that the traditional process of firstly dyeing by using the dye and then coating the ultraviolet sunscreen agent is replaced, and the purpose of rapidly preparing the structural color dye with the ultraviolet sunscreen function in a large area is achieved.
Advantageous effects
(1) The method has the advantages of simple process, preparation cost saving, strong universality and good application prospect.
(2) The invention starts from the angle of expanding the application of the structural color dye and functionalizing the structural color dye, improves the ultraviolet light sun-screening performance of the structural color dye by adding the ultraviolet sun-screening material, replaces the traditional process of dyeing by depending on the dye by using the functionalized structural color dye and further achieves the sun-screening effect by using the sun-screening coating, does not influence the optical performance and the color and luster degree of the prepared structural color while endowing the structural color material with the ultraviolet sun-screening function, and achieves the effects of further dyeing and sun-screening.
(3) The structural color dye has good ultraviolet light sun-screening performance, has broad-spectrum applicability and biocompatibility to base materials with different compositions and microstructures, ensures the stability of the chemical structure of the sun-screening material, avoids the decomposition of the sun-screening material under natural conditions and the damage to human bodies due to direct contact, and the like, and achieves the purposes of synchronous dyeing and sun screening.
Drawings
FIG. 1 is a graph showing the sunscreen effect of the structural color dye prepared in example 1; wherein, Reference is the coating sun-screening effect formed by the disordered arrangement of the monodisperse microspheres; PCs are the sun-screening effect of the color coating with the pure photonic crystal structure; sunscreen is the structural color Sunscreen effect containing the ultraviolet Sunscreen agent prepared in example 1;
fig. 2 is a graph showing the optical properties and the degree of color of the structural color dye prepared in example 1.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
Preparing a core-shell structure latex particle aqueous solution with a particle size of 200nm, namely monodisperse polystyrene-polymethyl methacrylate-polyacrylic acid as a shell and an octocrilene ultraviolet sunscreen agent as a core by adopting an emulsion polymerization method, diluting to a concentration of 0.1 wt%, ultrasonically dispersing uniformly, then immersing the polyester fabric into the mixed solution, and self-assembling at a temperature of 20 ℃ and a humidity of 10% to obtain the structural color dye with the ultraviolet sunscreen performance on the surface of the polyester fabric.
The ultraviolet absorption value of the structural color dye coated with octocrylene prepared in this example was tested, and a coating formed by disordered arrangement of polystyrene-polymethyl methacrylate-polyacrylic acid monodisperse microspheres and a pure photonic crystal structural color coating were taken as reference for comparison, and the result is shown in fig. 1, which indicates that the sun protection index of the structural color dye coated with a sunscreen agent reaches 120, and proves that the structural color dye well coats the ultraviolet sunscreen agent inside the structure and has a good ultraviolet sunscreen effect.
As can be seen from FIG. 2, the structural color coating of the dye prepared by the present example exhibits uniform and brilliant bluish violet in a large area range, and has excellent optical properties.
Example 2
Preparing a core-shell structure latex particle aqueous solution with monodisperse polystyrene with a particle size of 500nm as a shell and an avobenzone hydrazone ultraviolet sun-screening agent as a core by adopting an emulsion polymerization method, diluting to a concentration of 10wt%, ultrasonically dispersing uniformly, then immersing a polyester fabric into the mixed solution, and self-assembling at a temperature of 80 ℃ and a humidity of 90% to obtain the structural color dye with ultraviolet sun-screening performance on the surface of the plastic. The sun protection index of the structural color dye coated with the sun protection agent reaches 105, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye, and the ultraviolet sun protection agent has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous red in a large area range, and the optical performance is excellent.
Example 3
Preparing a core-shell structure latex particle aqueous solution taking monodisperse polyacrylic acid with the particle size of 300nm as a shell and a para aminobenzoic acid derivative ultraviolet sunscreen agent as a core by adopting an emulsion polymerization method, diluting to the concentration of 1 wt%, ultrasonically dispersing uniformly, then immersing an aluminum alloy substrate into the mixed solution, and self-assembling at the temperature of 50 ℃ and the humidity of 50% to obtain the structural color dye with the ultraviolet sunscreen performance on the surface of the aluminum alloy. The sun protection index of the structural color dye coated with the sun protection agent reaches 145, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye, and the ultraviolet sun protection agent has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous yellow-red color in a large area range, and the optical performance is excellent.
Example 4
Preparing monodisperse 150 nm-grain monodisperse Fe by in-situ induction reduction method3O4The core-shell structure emulsion particle aqueous solution taking the shell-salicylic acid and the derivatives thereof as the core is diluted to the concentration of 3wt percent and uniformly dispersed by ultrasonic, and then the metal Cu sheet substrate is soakedAnd (3) adding the metal Cu sheet into the mixed solution, and self-assembling at the temperature of 40 ℃ and the humidity of 70% to obtain the structural color dye with the ultraviolet sun-proof performance on the surface of the metal Cu sheet. The sun protection index of the structural color dye coated with the sun protection agent reaches 123, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye, and the ultraviolet sun protection agent has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous purple in a large area range, and the optical performance is excellent.
Example 5
By using
Figure BDA0002018007400000041
Method for preparing monodisperse SiO with particle size of 400nm2The structural color dye with the ultraviolet sun-screening performance on the rubber surface is obtained by diluting a core-shell structure latex particle aqueous solution with a shell-cinnamate ultraviolet sun-screening agent as a core to the concentration of 3 wt% and performing uniform ultrasonic dispersion, then immersing a rubber sheet into the microsphere solution, and performing self-assembly at the temperature of 20 ℃ and the humidity of 10%. The sun protection index of the structural color dye coated with the sun protection agent reaches 101, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye and the structural color dye has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous red in a large area range, and the optical performance is excellent.
Example 6
Preparing a core-shell structure latex particle aqueous solution taking monodisperse poly-N-isopropyl acrylamide with the particle size of 500nm as a shell and benzophenone compound as a core by adopting an emulsion polymerization method, diluting to 0.5 wt%, ultrasonically dispersing uniformly, then immersing a glass sheet into the microsphere solution, and self-assembling at the temperature of 20 ℃ and the humidity of 10% to obtain the structural color dye with the ultraviolet sun-proof performance on the surface of the glass. The sun protection index of the structural color dye coated with the sun protection agent reaches 113, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye, and the ultraviolet sun protection agent has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous red in a large area range, and the optical performance is excellent.
Example 7
Preparing a core-shell structure emulsion particle aqueous solution taking monodisperse polyacrylamide with the particle size of 300nm as a shell and an anthranilate derivative as a core by adopting an emulsion polymerization method, diluting to 2.5 wt%, ultrasonically dispersing uniformly, then immersing a silicon wafer into the microsphere solution, and self-assembling at the temperature of 50 ℃ and the humidity of 50% to obtain the structural color dye with the ultraviolet sun-screening performance on the surface of the silicon wafer. The sun protection index of the structural color dye coated with the sun protection agent reaches 107, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye and the structural color dye has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous yellow green in a large area range, and the optical performance is excellent.
Example 8
Preparing a core-shell structure latex particle aqueous solution taking monodisperse polyacrylamide with the particle size of 300nm as a shell and a dibenzoylmethane compound as a core by adopting an emulsion polymerization method, diluting to 5 wt%, ultrasonically dispersing uniformly, then immersing a pure cotton fabric into the microsphere solution, and self-assembling at the temperature of 50 ℃ to obtain the structural color dye with the ultraviolet sun-screening performance on the surface of the pure cotton fabric. The sun protection index of the structural color dye coated with the sun protection agent reaches 118, which proves that the ultraviolet sun protection agent is well coated in the structure by the structural color dye, and the ultraviolet sun protection agent has a good ultraviolet sun protection effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous yellow green in a large area range, and the optical performance is excellent.
Example 9
By using
Figure BDA0002018007400000051
Method for preparing monodisperse SiO with particle size of 250nm2The structural color dye with the ultraviolet sun-proof performance on the surface of the rubber is obtained by self-assembling a rubber sheet into the microsphere solution at the temperature of 20 ℃ after diluting the core-shell structure latex particle aqueous solution with the shell-camphor derivative as the core until the concentration is 1.5 wt% and the ultrasonic dispersion is uniform. The sun protection index of the structural color dye coated with the sun protection agent reaches116, the structural color dye is proved to well coat the ultraviolet sun-screening agent in the structure and has better ultraviolet sun-screening effect. The structural color coating of the dye prepared by the embodiment shows uniform and gorgeous green in a large area range, and has excellent optical performance.

Claims (7)

1. A functionalized structured color dye, characterized by: coating the ultraviolet sun-screening material in a monodisperse microsphere shell layer to obtain the ultraviolet sun-screening material; the monodisperse microspheres are polymer microspheres or inorganic nano microspheres, wherein the polymer microspheres are selected from one of polystyrene, polyacrylic acid, poly-N-isopropyl acrylamide, polystyrene-polymethyl methacrylate-polyacrylic acid and polyacrylamide; the inorganic nano-microspheres are selected from one of silicon dioxide, ferroferric oxide and ferric oxide; the ultraviolet sunscreen material is selected from avobenzone hydrazone, p-aminobenzoic acid derivatives, salicylic acid and derivatives thereof, cinnamate compounds, benzophenone compounds, anthranilate, dibenzoyl methane compounds or camphor.
2. The functionalized structured color dye of claim 1, wherein: the particle size of the monodisperse microsphere is 100-500 nm; the monodispersity is less than 5 percent.
3. A method of preparing the functionalized structured color dye of claim 1, comprising:
coating the ultraviolet sunscreen material in a monodisperse microsphere shell layer to obtain a microsphere solution, diluting the microsphere solution to the concentration of 0.1-10wt%, uniformly dispersing by ultrasonic, and then self-assembling on a base material to obtain the ultraviolet sunscreen material.
4. The production method according to claim 3, characterized in that: the base material is one of metal, alloy, polymer material and inorganic non-metal material.
5. The method of claim 4, wherein: the metal is selected from Cu, Al, Ti or Fe; the alloy is selected from aluminum alloy, titanium alloy or stainless steel; the polymer material is selected from one or more of plastic, fiber and rubber; the inorganic non-metallic material is selected from one or more of ceramics, glass and silicon wafers.
6. The production method according to claim 3, characterized in that: the process conditions of the self-assembly are as follows: the temperature is 20-80 ℃ and the humidity is 10-90% in a constant temperature and humidity environment or a constant temperature environment.
7. The use of the functionalized structured color dye of claim 1 in the field of uv protection.
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