CN115108734B - Photonic glass structural color film with reversible color change performance of solvent response, preparation method and application - Google Patents
Photonic glass structural color film with reversible color change performance of solvent response, preparation method and application Download PDFInfo
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- CN115108734B CN115108734B CN202210934296.9A CN202210934296A CN115108734B CN 115108734 B CN115108734 B CN 115108734B CN 202210934296 A CN202210934296 A CN 202210934296A CN 115108734 B CN115108734 B CN 115108734B
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- 239000002904 solvent Substances 0.000 title claims abstract description 38
- 239000011521 glass Substances 0.000 title claims abstract description 32
- 230000004044 response Effects 0.000 title claims abstract description 28
- 230000002441 reversible effect Effects 0.000 title claims abstract description 20
- 230000008859 change Effects 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000004005 microsphere Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 13
- 230000000638 stimulation Effects 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000003086 colorant Substances 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims description 27
- 229910021641 deionized water Inorganic materials 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 7
- 239000012286 potassium permanganate Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 4
- DGXAGETVRDOQFP-UHFFFAOYSA-N 2,6-dihydroxybenzaldehyde Chemical compound OC1=CC=CC(O)=C1C=O DGXAGETVRDOQFP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000031700 light absorption Effects 0.000 abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 14
- 238000003756 stirring Methods 0.000 description 12
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001000 micrograph Methods 0.000 description 6
- 239000004038 photonic crystal Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000008098 formaldehyde solution Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000000935 solvent evaporation Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
- G11B7/00453—Recording involving spectral or photochemical hole burning
-
- 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
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Filters (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention provides a photonic glass structural color film with solvent response reversible color change performance, a preparation method and application thereof, and relates to the technical field of photonic glass structural color materials, comprising a substrate, wherein a plurality of monodisperse hollow MnO with different particle diameters are attached to the substrate 2 A microsphere; the invention uses monodisperse hollow MnO 2 The microspheres obtain a structural color film. MnO (MnO) 2 The high refractive index and light absorption properties of (2) such that no additional black background is added to the material for the appearance of structural colors. The synthesized photon glass film has bright color and is not influenced by the observation angle. Under the stimulation of an external solvent, the material has obvious color-changing response effect, reversible response and wide application prospect in the aspect of optical information storage.
Description
Technical Field
The invention relates to the technical field of photonic glass structural color materials, in particular to a photonic glass structural color film with solvent response reversible color change performance, a preparation method and application.
Background
Structural color is a substitute coloring mechanism that can create color by light interfering with the microstructure, and does not fade as long as the structure is not destroyed. Has wide application prospect in the fields of anti-counterfeiting, color display, sensors and the like.
Typically, photonic crystal materials based on coherent bragg diffraction have periodic structures that are ordered in close range, ordered in long range. However, the photonic crystal has iridescence whose color varies with the change of the observation angle, and the iridescence of the narrow viewing angle can limit the application of the photonic crystal in coloring and developing, and the periodic structure has high requirements on the preparation process and limits the practical application of the photonic crystal. Photonic glass is a type of short-range ordered, disordered material that does not require a cumbersome and time-consuming assembly process. By the effect of Mie scattering, a non-iridescent color is produced whose color does not vary with the angle of observation. According to the Bragg formula: lambda ≡dn eff It can be seen that the wavelength of the color is in relation to the lattice spacing and the effective refractive indexProportional relation. The color of the material can be further changed by adjusting the lattice spacing and the effective refractive index parameter. The advantages of photonic glass in terms of assembly and angle dependence are more favorable for applications in color development than photonic crystals with iridescence, and deserving further intensive research.
However, the photonic glass structural color material generally existing at present has the defects of low color saturation due to the small refractive index and poor light absorption performance, and black substances are often required to be additionally added to improve the coloring and limit the application of the photonic glass structural color material.
Disclosure of Invention
The invention aims to provide a photonic glass structural color film with reversible color change of solvent response, a preparation method and application thereof, which can obtain the photonic glass structural color film with high color saturation;
the invention provides a photonic glass structural color film with reversible color change of solvent response, which comprises a substrate, wherein a plurality of monodisperse hollow MnO with different particle diameters are attached to the substrate 2 And (3) microspheres.
Further, the substrate is a glass substrate.
Further, the film may exhibit structural colors of violet, blue, and green under natural light.
The invention also provides a preparation method of the photonic glass structural color film with the reversible color change performance of solvent response, which comprises the following steps: s1, preparing monodisperse silicon dioxide microspheres with different particle sizes; s2, adding resorcinol-formaldehyde resin into the monodisperse silica microspheres obtained in the step S1, performing centrifugal washing after reaction, and dispersing a centrifugal product in deionized water; s3, adding potassium permanganate into the system obtained in the step S2, performing centrifugal washing after the reaction, and dispersing a centrifugal product in deionized water; s4, adding sodium hydroxide solution into the system obtained in the step S3, performing centrifugal washing after the reaction, and dispersing the centrifugal product in deionized water to obtain monodisperse hollow MnO 2 A microsphere; s5, the hollow MnO obtained in the step S4 2 The dispersion of the microspheres is dripped on a substrate, and hollow MnO is prepared after drying 2 A structural color film.
Further, in step S1, the particle diameter of the monodisperse silica particles is 170nm to 230nm, and the concentration is 30mg/mL to 60mg/mL.
Further, in step S2, the concentration of resorcinol was 0.07wt%, the concentration of formaldehyde was 0.1wt%, the reaction temperature was 60 to 100℃and the reaction time was 4 hours.
Further, in the step S3, the concentration of potassium permanganate was 4mg/mL, and the reaction time at room temperature was 3 hours.
Further, in step S4, the concentration of sodium hydroxide was 6mol/L, and the reaction time at 70℃was 3 hours.
Further, in step S5, hollow MnO 2 The concentration of the microsphere is 5mg/mL, and the hollow MnO 2 The dispersed droplets of microspheres are naturally air-dried on a substrate.
The invention also provides an application of the photonic glass structural color film with the solvent response reversible color change performance, and the film can be used for optical information storage.
The technical proposal of the invention is that the hollow MnO is mono-dispersed 2 The microspheres obtain a structural color film. MnO (MnO) 2 The high refractive index and light absorption properties of (2) such that no additional black background is added to the material for the appearance of structural colors. The synthesized photon glass film has bright color and is not influenced by the observation angle. Under the stimulation of an external solvent, the material has obvious color-changing response effect, reversible response and wide application prospect in the aspect of optical information storage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a preparation method of the invention;
FIG. 2 (a) is a transmission electron microscope image of example 1 of the present invention;
FIG. 2 (b) is a reflection spectrum of example 1 of the present invention;
FIG. 2 (c) is a graph showing the effect of the solvent reversible response of example 1 of the present invention.
FIG. 3 (a) is a transmission electron microscope image of example 2 of the present invention;
FIG. 3 (b) is a reflectance spectrum of example 2 of the present invention;
FIG. 3 (c) is a graph showing the effect of the solvent reversible response of example 2 of the present invention.
FIG. 4 (a) is a transmission electron microscope image of example 3 of the present invention;
FIG. 4 (b) is a reflectance spectrum of example 3 of the present invention;
FIG. 4 (c) is a graph showing the effect of the solvent reversible response of example 3 of the present invention;
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1, film has solvent response reversible color change properties:
when monodisperse hollow MnO 2 When the microsphere is attached to the substrate, due to MnO 2 The microsphere has high refractive index and light absorption performance, so that the synthesized photon glass film can have brighter color without adding extra black background for showing structural color, and the color is not influenced by an observation angle. While at different positions on the substrate, hollow MnO 2 The different particle diameters of the microspheres enable different positions of the film to show different structural colors such as purple, blue, green and the like. The film exhibits a first structural color (e.g., violet) in the absence of solvent stimulation, and changes to a second structural color (e.g., blue) upon solvent (e.g., ethanol or isopropanol) stimulation due to an increase in effective refractive index, and is capable of reversibly reverting to the first structural color upon solvent evaporation.
Example 2, as shown in fig. 1, the film was prepared to appear as a purple structural color:
s1, taking 8mL of tetraethyl orthosilicate, 7mL of ammonia water, 210mL of ethanol and 20mL of deionized water, and stirring for 4 hours to obtain the monodisperse silica microspheres with the diameter of 170 nm.
S2, taking a monodisperse solution containing 50mg of silicon dioxide, adding 2mL of PVP solution with the mass fraction of 5wt% and 16mL of deionized water, stirring for 12 hours, centrifuging and separating.
S3, adding 20mg of resorcinol, 28 mu L of formaldehyde solution and 100 mu L of ammonia water with the mass fraction of 2.8wt% into the system obtained in the step S2, and heating to 60 ℃ by 28mL of deionized water. After 2 hours of reaction, the temperature was raised to 100℃and the reaction was continued for 2 hours. And (5) centrifuging and separating.
S4, adding 80mg of potassium permanganate and 20mL of deionized water into the system obtained in the step S3, stirring for 3 hours at room temperature, centrifuging and separating.
S5, adding 80mL of deionized water and 20mL of sodium hydroxide solution with the concentration of 6mol/L into the system obtained in the step S4, stirring at 70 ℃ for 3 hours, washing to be neutral, and dispersing in the deionized water with the concentration of 5mg/mL.
S6, dripping the monodisperse solution obtained in the step S5 on a glass substrate with a mask to obtain the photonic glass film with purple structural color.
As shown in fig. 2a, the transmission electron microscope image of example 1 of the present invention demonstrates that the product has a hollow structure and a uniform size distribution; as shown in fig. 2b, the reflection spectrum of the embodiment 1 of the present invention is that the reflection peak is located at 440nm and corresponds to purple; as shown in fig. 2c, for the solvent response image of example 1 of the present invention, the film appeared to be purple structural color without solvent stimulation, and the structural color red shifted to blue due to the increase of the effective refractive index under ethanol or isopropanol solvent stimulation, and the film was able to be reversibly recovered to purple after solvent evaporation. The method can be used for color development, anti-counterfeiting and optical information storage and reading under solvent response.
Example 3 as shown in fig. 1, the film was prepared as a blue structural color:
s1, taking 10mL of tetraethyl orthosilicate, 8mL of ammonia water, 210mL of ethanol and 20mL of deionized water, and stirring for 4 hours to obtain the monodisperse silica microspheres with the diameter of 200 nm.
S2, taking a monodisperse solution containing 50mg of silicon dioxide, adding 2mL of PVP solution with the mass fraction of 5wt% and 16mL of deionized water, stirring for 12 hours, centrifuging and separating.
S3, adding 20mg of resorcinol, 28 mu L of formaldehyde solution and 100 mu L of ammonia water with the mass fraction of 2.8wt% into the system obtained in the step S2, and heating to 60 ℃ by 28mL of deionized water. After 2 hours of reaction, the temperature was raised to 100℃and the reaction was continued for 2 hours. And (5) centrifuging and separating.
S4, adding 80mg of potassium permanganate and 20mL of deionized water into the system obtained in the step S3, stirring for 3 hours at room temperature, centrifuging and separating.
S5, adding 80mL of deionized water and 20mL of sodium hydroxide solution with the concentration of 6mol/L into the system obtained in the step S4, stirring at 70 ℃ for 3 hours, washing to be neutral, and dispersing in the deionized water with the concentration of 5mg/mL.
And S6, dripping the monodisperse solution obtained in the step S5 on a glass substrate with a mask to obtain the photonic glass film with blue structural color.
As shown in fig. 3a, the transmission electron microscope image of example 2 of the present invention demonstrates that the product has a hollow structure and a uniform size distribution; as shown in fig. 3b, the reflection spectrum of embodiment 2 of the present invention is that the reflection peak is located at 480nm, which corresponds to blue; as shown in fig. 3c, for the solvent response image of example 2 of the present invention, the film appeared blue structural color without solvent stimulation, and the structural color red shifted to green due to the increase of the effective refractive index under ethanol or isopropanol solvent stimulation, and the film was able to reversibly recover blue color after solvent evaporation. The method can be used for color development, anti-counterfeiting and optical information storage and reading under solvent response.
Example 4 as shown in fig. 1, the film was prepared as a green structural color:
s1, taking 4.5mL of tetraethyl orthosilicate, 9mL of ammonia water, 62mL of ethanol and 25mL of deionized water, and stirring for 4 hours to obtain the monodisperse silica microsphere with the diameter of 230 nm.
S2, taking a monodisperse solution containing 50mg of silicon dioxide, adding 2mL of PVP solution with the mass fraction of 5wt% and 16mL of deionized water, stirring for 12 hours, centrifuging and separating.
S3, adding 20mg of resorcinol, 28 mu L of formaldehyde solution and 100 mu L of ammonia water with the mass fraction of 2.8wt% into the system obtained in the step S2, and heating to 60 ℃ by 28mL of deionized water. After 2 hours of reaction, the temperature was raised to 100℃and the reaction was continued for 2 hours. And (5) centrifuging and separating.
S4, adding 80mg of potassium permanganate and 20mL of deionized water into the system obtained in the step S3, stirring for 3 hours at room temperature, centrifuging and separating.
S5, adding 80mL of deionized water and 20mL of sodium hydroxide solution with the concentration of 6mol/L into the system obtained in the step S4, stirring at 70 ℃ for 3 hours, washing to be neutral, and dispersing in the deionized water with the concentration of 5mg/mL.
And S6, dripping the monodisperse solution obtained in the step S5 on a glass substrate with a mask to obtain the photonic glass film with green structural color.
As shown in fig. 4a, the transmission electron microscope image of example 3 of the present invention demonstrates that the product has a hollow structure and a uniform size distribution; as shown in fig. 4b, the reflection spectrum of the embodiment 3 of the present invention is that the reflection peak is located at 550nm, and is green; as shown in fig. 4c, for the solvent response image of example 3 of the present invention, the film appeared as a green structural color without solvent stimulation, and the structural color red shifted to yellow due to the increase of the effective refractive index under the stimulation of ethanol or isopropanol solvent, and the film was able to be reversibly recovered to green again after the solvent was volatilized. The method can be used for color development, anti-counterfeiting and optical information storage and reading under solvent response.
Example 5 films can be used for optical information storage:
the optical information storage can be formed by arranging and combining different structural colors in a certain area on the film, and the optical information reading can be formed by reading the structural color arrangement and combination in the area. For example, the reading and writing of the optical disc are not repeated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A photonic glass structural color film with reversible color change performance of solvent response is characterized by comprising a substrate, wherein the substrate is a glass substrate, and a plurality of monodisperse hollow MnO with different particle sizes are attached to the substrate 2 A microsphere;
hollow MnO according to different positions on a substrate 2 The particle sizes of the microspheres are different, so that different positions of the film can display different structural colors of purple, blue and green under natural light;
in the absence of solvent stimulation, the different positions of the film appear as a first structural color of purple, blue and green;
under the stimulation of the solvent, the first structural color of purple on the film changes into the second structural color of blue, the first structural color of blue on the film changes into the second structural color of green, and the first structural color of green on the film changes into the second structural color of yellow;
when the solvent volatilizes, the film can be reversibly restored to the first structural color;
the preparation method of the photonic glass structural color film with the reversible color change performance of the solvent response comprises the following steps:
s1, preparing monodisperse silicon dioxide microsphere solutions with different particle sizes, wherein the particle size of the monodisperse silicon dioxide particles is 170nm-230nm, and the concentration is 30mg/mL-60 mg/mL;
s2, adding resorcinol-formaldehyde resin into the monodisperse silica microsphere solution obtained in the step S1, performing centrifugal washing after reaction, and dispersing a centrifugal product in deionized water;
s3, adding potassium permanganate into the system obtained in the step S2, performing centrifugal washing after the reaction, and dispersing a centrifugal product in deionized water;
s4, adding sodium hydroxide solution into the system obtained in the step S3, performing centrifugal washing after the reaction, and dispersing the centrifugal product in deionized water to obtain monodisperse hollow MnO 2 A dispersion of microspheres;
s5, the monodisperse hollow MnO obtained in the step S4 is prepared 2 The dispersion of the microspheres is dripped on a substrate, and hollow MnO is prepared after drying 2 Structure of theA color film.
2. A method of preparing a photonic glass structural color film having reversible color change in response to a solvent as claimed in claim 1, comprising the steps of:
s1, preparing monodisperse silicon dioxide microsphere solutions with different particle sizes, wherein the particle size of the monodisperse silicon dioxide particles is 170nm-230nm, and the concentration is 30mg/mL-60 mg/mL;
s2, adding resorcinol-formaldehyde resin into the monodisperse silica microsphere solution obtained in the step S1, performing centrifugal washing after reaction, and dispersing a centrifugal product in deionized water;
s3, adding potassium permanganate into the system obtained in the step S2, performing centrifugal washing after the reaction, and dispersing a centrifugal product in deionized water;
s4, adding sodium hydroxide solution into the system obtained in the step S3, performing centrifugal washing after the reaction, and dispersing the centrifugal product in deionized water to obtain monodisperse hollow MnO 2 A dispersion of microspheres;
s5, the monodisperse hollow MnO obtained in the step S4 is prepared 2 The dispersion of the microspheres is dripped on a substrate, and hollow MnO is prepared after drying 2 A structural color film.
3. The method for producing a photonic glass structural color film having reversible color change in response to a solvent according to claim 2, wherein in the step S4, the concentration of the sodium hydroxide solution is 6mol/L and the reaction time is 3 hours at 70 ℃.
4. The method for preparing a photonic glass structural color film with reversible color change in response to solvent according to claim 2, wherein in step S5, monodisperse hollow MnO is used 2 The concentration of the dispersion liquid of the microspheres is 5mg/mL, and the dispersion liquid of the microspheres is monodisperse hollow MnO 2 The dispersed droplets of microspheres are naturally air-dried on a substrate.
5. Use of a photonic glass structural color film having solvent response reversible color change properties according to claim 1, wherein the film is useful for optical information storage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210934296.9A CN115108734B (en) | 2022-08-04 | 2022-08-04 | Photonic glass structural color film with reversible color change performance of solvent response, preparation method and application |
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| CN202210934296.9A CN115108734B (en) | 2022-08-04 | 2022-08-04 | Photonic glass structural color film with reversible color change performance of solvent response, preparation method and application |
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| CN115108734B true CN115108734B (en) | 2024-02-09 |
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| CN108535954A (en) * | 2018-02-23 | 2018-09-14 | 中山大学 | A kind of preparation method of the dynamic photon crystal pattern of infiltration control film refractive index |
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| CN108535954A (en) * | 2018-02-23 | 2018-09-14 | 中山大学 | A kind of preparation method of the dynamic photon crystal pattern of infiltration control film refractive index |
| CN114834172A (en) * | 2022-05-06 | 2022-08-02 | 浙江理工大学 | Multiple anti-counterfeiting method based on structural color and multiple anti-counterfeiting element |
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