CN111621042A - Preparation method of wettability-adjustable graphene photonic crystal film - Google Patents
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- 239000004038 photonic crystal Substances 0.000 title claims abstract description 94
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/14—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses a preparation method of a graphene photonic crystal film with adjustable wettability, which comprises the following steps: s1: preparing an opal type photonic crystal film using the monodisperse nanoparticles; s2: uniformly permeating a polymer precursor solution containing graphene into the pores of the opal type photonic crystal film, and removing the opal type photonic crystal structure after polymerization to obtain an ordered inverse opal type graphene photonic crystal film; s3: and dripping infiltration liquid on the surface of the inverse opal type graphene photonic crystal film to enable the surface to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration. And applying an electric response to the graphene photonic crystal film, wherein the wettability of the film can be artificially regulated and controlled.
Description
Technical Field
The invention relates to the technical field of photonic crystal preparation, in particular to a preparation method of a graphene photonic crystal film with adjustable wettability.
Background
The life in nature has the history of hundreds of millions of years of evolution, the perpetual subject of new material development is to natural learning, the integration of microcosmic and macroscopic is inspired from organisms, one aspect of specific functions of organisms is simulated, the design and preparation of new materials are realized, and the new concept of natural learning is realized. For example, the agility can be obtained from the plant in nature, namely the pitcher plant, and the pitcher plant has the characteristics that the pitcher plant has the capability of continuously carrying objects, and the objects are enabled to be wet and slippery and cannot slide off. The peculiar directional liquid conveying phenomenon is due to the unique micro-nano structure of the surface.
The three-dimensional inverse opal type graphene photonic crystal film is composed of a layered ordered hexagonal structure and is prepared by copying an opal type graphene photonic crystal template. Such a three-dimensional inverse opal type photonic crystal structure exists in nature, however, the work of manually preparing an inverse opal type graphene photonic crystal structure rarely involves a layer of adjusting wettability by applying an electrical response, and the work of manually adjusting wettability of a graphene photonic crystal film by applying an electrical response is still blank.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides a preparation method of a graphene photonic crystal film with adjustable wettability,
the technical scheme is as follows: the invention provides a preparation method of a graphene photonic crystal film with adjustable wettability, which is characterized by comprising the following steps: s1: preparing an opal type photonic crystal film using the monodisperse nanoparticles; s2: uniformly permeating a polymer precursor solution containing graphene into the pores of the opal type photonic crystal film, and removing the opal type photonic crystal structure after polymerization to obtain an ordered inverse opal type graphene photonic crystal film; s3: and dripping infiltration liquid on the surface of the inverse opal type graphene photonic crystal film to enable the surface to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration.
Preferably, the concentration of the polymer precursor solution containing graphene is 0.9-3 mg/ml.
Preferably, in S1, the opal-type photonic crystal thin film is prepared by a vertical deposition method, a doctor blade method, a spin coating method, a czochralski method, a vapor deposition method, or an electrodeposition method.
Preferably, in the S1, the monodisperse nanoparticles are any one or a combination of the following: metal oxides, inorganic salts, polyelectrolytes, block polymers, copolymers, liquid crystal materials, mesoporous nanoparticles, gold or silver.
Preferably, the diameter of the monodisperse nano particle is 200 nm-400 nm, and the concentration is 0.1 g/ml-0.3 g/ml.
Preferably, the thickness of the opal type photonic crystal thin film is 400 nm-400 mu m.
Preferably, the polymer precursor solution may be methyl methacrylate, polyhydroxyethyl methacrylate, cellulose acetate butyrate, silicone methacrylate, fluorosilicone methacrylate, perfluoroether, N-vinyl pyrrolidone, polyvinyl alcohol, glycidyl methacrylate, ethylene glycol dimethacrylate, polydimethylsiloxane and polyurethane.
Preferably, in S2, the polymerization method is thermal polymerization or ultraviolet polymerization.
Preferably, in the S2, the opal-type photonic crystal structure is removed by acid etching, alkali etching, or thermal burning-out.
Preferably, in S3, the immersion liquid is silicone oil, ethanol or ultrapure water.
Has the advantages that: the preparation method comprises the steps of firstly preparing a three-dimensional opal type photonic crystal film by using monodisperse nanoparticles, then uniformly permeating a polymer precursor solution containing graphene into pores of the opal type photonic crystal film, removing an opal type photonic crystal structure by a sacrificial template method after polymerization to obtain an ordered inverse opal type graphene photonic crystal film, infiltrating the film by using a proper infiltration liquid, and forming a liquid coating on the surface of the film to obtain the graphene photonic crystal film with adjustable infiltration.
The graphene photonic crystal film with adjustable wettability prepared by the invention is a novel wet and smooth film with adjustable wettability based on shape memory graphene sponge. The conductivity of the graphene photonic crystal film enables the graphene photonic crystal film to have the characteristic of rapidly recovering shape memory, and when the shape memory graphene film is formed, liquid drops can be pinned and rebound due to electrical response, so that exposure of a rough surface is caused. When the graphene photonic crystal film is subjected to electric response, nano holes of a photonic crystal structure in the graphene photonic crystal film become large or small, and the surface of the film becomes rough or smooth, so that the continuous liquid level deforms, the wettability of the graphene photonic crystal film can be controlled rapidly and perfectly, and good mechanical properties are realized. The electric heating effect changes the charge density and the electrostatic force between the water and the surface of the film, thereby ensuring that the film has wettability.
Drawings
Fig. 1 is a schematic structural diagram of a graphene photonic crystal film with adjustable wettability according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Embodiment 1:
the embodiment provides a preparation method of a graphene photonic crystal film with adjustable wettability, which comprises the following steps:
(1) preparing a three-dimensional opal type graphene photonic crystal film:
the silica nanoparticles with the diameter of 300nm and the concentration of 0.2 g/ml and good monodispersity are selected as the material for preparing the opal type photonic crystal film, and the opal type photonic crystal film with the thickness of 400nm is prepared by a vertical deposition method.
(2) Preparing an inverse opal type graphene photonic crystal film:
uniformly permeating a Polydimethylsiloxane (PDMS) precursor solution containing graphene with the concentration of 0.9 g/ml into pores of the opal type photonic crystal film, thermally initiating polymerization, and removing the opal type photonic crystal structure by a sacrificial template method to obtain the ordered inverse opal type graphene photonic crystal film.
(3) Preparing an electric response graphene photonic crystal film with adjustable wettability:
and (3) dropwise adding fluorinated silicone oil (FC-70) liquid on the surface of the inverse opal type graphene photonic crystal film to enable the film to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration. As in fig. 1.
Embodiment 2:
the embodiment provides a preparation method of a graphene photonic crystal film with adjustable wettability, which comprises the following steps:
(1) preparing a three-dimensional opal type graphene photonic crystal film:
polystyrene nano particles with the diameter of 260nm and the concentration of 0.3 g/ml and good monodispersity are selected as materials for preparing the opal type photonic crystal film, and the opal type photonic crystal film with the thickness of 100 mu m is prepared by a vertical deposition method.
(2) Preparing an inverse opal type graphene photonic crystal film:
uniformly permeating 2g/ml graphene-containing Polydimethylsiloxane (PDMS) precursor solution into pores of the opal type photonic crystal film, thermally initiating polymerization, and removing the opal type photonic crystal structure by a sacrificial template method to obtain the ordered inverse opal type graphene photonic crystal film.
(3) Preparing an electric response graphene photonic crystal film with adjustable wettability:
and (3) dropwise adding fluorinated silicone oil (FC-70) liquid on the surface of the inverse opal type graphene photonic crystal film to enable the film to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration.
Embodiment 3:
the embodiment provides a preparation method of a graphene photonic crystal film with adjustable wettability, which comprises the following steps:
(1) preparing a three-dimensional opal type graphene photonic crystal film:
graphene nanoparticles with the diameter of 250nm and the concentration of 0.1g/ml and good monodispersity are selected as materials for preparing the opal type photonic crystal film, and the opal type photonic crystal film with the thickness of 100 mu m is prepared by a vertical deposition method.
(2) Preparing an inverse opal type graphene photonic crystal film:
uniformly permeating a graphene-containing hydroxyethyl methacrylate (HEMA) precursor solution with the concentration of 3 g/ml into pores of the opal type photonic crystal film, thermally initiating polymerization, and removing the opal type photonic crystal structure by a sacrificial template method to obtain the ordered inverse opal type graphene photonic crystal film.
(3) Preparing an electric response graphene photonic crystal film with adjustable wettability:
and (3) dropwise adding fluorinated silicone oil (FC-43) liquid on the surface of the inverse opal type graphene photonic crystal film to enable the film to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration.
Electrical response is respectively applied to the graphene photonic crystal films with adjustable wettability obtained in the embodiments 1 to 3 under the condition of fluorosilicone oil wetting, and the wettability and mechanical properties of the films after the electrical response is applied are tested.
The wettability of the graphene photonic crystal film applied with the electric response can be adjusted by an external electric field, 6v voltage is applied, and after 6 seconds, the surface of the film can be changed into a liquid drop position locking state from a super-lubrication state. The mechanical properties can also be adjusted by means of an applied electric field.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A preparation method of a graphene photonic crystal film with adjustable wettability is characterized by comprising the following steps:
s1: preparing an opal type photonic crystal film using the monodisperse nanoparticles;
s2: uniformly permeating a polymer precursor solution containing graphene into the pores of the opal type photonic crystal film, and removing the opal type photonic crystal structure after polymerization to obtain an ordered inverse opal type graphene photonic crystal film;
s3: and dripping infiltration liquid on the surface of the inverse opal type graphene photonic crystal film to enable the surface to be completely infiltrated to form a liquid coating, so as to obtain the graphene photonic crystal film with adjustable infiltration.
2. The method for preparing the graphene photonic crystal film with the adjustable wettability according to claim 1, wherein the concentration of the polymer precursor solution containing graphene is 0.9-3 mg/ml.
3. The method of claim 1, wherein in step S1, the opal-type photonic crystal film is prepared by a vertical deposition method, a doctor blading method, a spin coating method, a czochralski method, a vapor deposition method, or an electrodeposition method.
4. The method for preparing the graphene photonic crystal film with adjustable wettability according to claim 1, wherein in the step S1, the monodisperse nanoparticles are any one or a combination of the following:
metal oxides, inorganic salts, polyelectrolytes, block polymers, copolymers, liquid crystal materials, mesoporous nanoparticles, gold or silver.
5. The method for preparing the wettability-adjustable graphene photonic crystal film according to any one of claims 1 to 3, wherein the diameter of the monodisperse nanoparticles is 200 nm to 400nm, and the concentration of the monodisperse nanoparticles is 0.1g/ml to 0.3 g/ml.
6. The method for preparing the graphene photonic crystal film with the adjustable wettability according to any one of claims 1 to 3, wherein the thickness of the opal type photonic crystal film is 400nm to 400 μm.
7. The method for preparing the graphene photonic crystal film with the adjustable wettability according to any one of claims 1 to 6, wherein the polymer precursor solution may be methyl methacrylate, polyhydroxyethyl methacrylate, cellulose acetate butyrate, siloxane methacrylate, fluorosilicone methacrylate, perfluoroether, N-vinyl pyrrolidone, polyvinyl alcohol, glycidyl methacrylate, ethylene glycol dimethacrylate, polydimethylsiloxane and polyurethane.
8. The method for preparing the graphene photonic crystal film with the adjustable wettability of any one of claims 1 to 6, wherein in the step S2, the polymerization method is thermal polymerization or ultraviolet polymerization.
9. The method for preparing the wettability-adjustable graphene photonic crystal film according to any one of claims 1 to 6, wherein in the step S2, the opal type photonic crystal structure is removed by an acid etching method, an alkali etching method or a thermal burning-out method.
10. The method for preparing the graphene photonic crystal film with the adjustable wettability according to any one of claims 1 to 6, wherein in the step S3, the wetting liquid is fluorinated silicone oil, ethanol or ultrapure water.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100338A1 (en) * | 2011-01-25 | 2012-08-02 | Opalux Incorporated | Photonic crystal device with infiltrating component |
| CN103467773A (en) * | 2013-09-13 | 2013-12-25 | 东南大学 | Photonic crystal film with dual regulation and control on structural colors and wettability and preparation method thereof |
| CN105525343A (en) * | 2015-12-18 | 2016-04-27 | 中国科学院理化技术研究所 | Preparation method and application of carbon dot photonic crystal having opal structure or inverse opal structure |
| CN106751604A (en) * | 2016-11-18 | 2017-05-31 | 中国科学院深圳先进技术研究院 | A kind of shape memory photon crystal material and preparation method thereof |
| CN110850584A (en) * | 2019-11-29 | 2020-02-28 | 京东方科技集团股份有限公司 | Electronic paper display device and electronic equipment |
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- 2020-04-28 CN CN202010352171.6A patent/CN111621042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100338A1 (en) * | 2011-01-25 | 2012-08-02 | Opalux Incorporated | Photonic crystal device with infiltrating component |
| CN103467773A (en) * | 2013-09-13 | 2013-12-25 | 东南大学 | Photonic crystal film with dual regulation and control on structural colors and wettability and preparation method thereof |
| CN105525343A (en) * | 2015-12-18 | 2016-04-27 | 中国科学院理化技术研究所 | Preparation method and application of carbon dot photonic crystal having opal structure or inverse opal structure |
| CN106751604A (en) * | 2016-11-18 | 2017-05-31 | 中国科学院深圳先进技术研究院 | A kind of shape memory photon crystal material and preparation method thereof |
| CN110850584A (en) * | 2019-11-29 | 2020-02-28 | 京东方科技集团股份有限公司 | Electronic paper display device and electronic equipment |
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Application publication date: 20200904 |