CN101029139A - Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use - Google Patents
Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use Download PDFInfo
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Abstract
A controllable wetted polymer colloidal photo crystal film, its production and use are disclosed. The process is carried out by adding mono-dispersed polymer colloidal particle suspension with hard-nuclear and soft-shell structure into inorganic alkali liquor, regulating pH from 6-14, coating it onto flattened substrate material at room temperature, volatilizing for dispersant, and regulating pH value and hydrophilic group to obtain the final product. It has excellent hydrophobic, hydrophilic and super-hydrophilic performances and can be used for water-proof and ultraviolet-resisting coating.
Description
Technical field
The invention belongs to the preparation and the applied technical field of colloid photonic crystal film, relate in particular to photon crystal membrane of polymer colloid with normal temperature controllable immersing, and this have the normal temperature controllable immersing photon crystal membrane of polymer colloid the preparation method and in the purposes of aspects such as water-proof coating.
Background technology
The surface wettability of solid material is a very important performance.Natural lotus leaf surface is subjected to the influence of lotus leaf surface micro-nano compound structure owing to it has the effect that super-hydrophobicity has realized automatically cleaning and self-protection, and many methods are used to adjust the wetting property of solid material surface.Resemble sol-gel process, or the low-surface-energy material surface roughening, or adopt the mould extruding to make certain polymer molecule in solvent, realize being separated.Such as, number of patent application (CN:00103573.8) is realized hydrophobic, oleophobic property at the super two fluorine-containing organosilicone compounds of (hydrophobic, oleophobic) treatment agent of dredging of material surface utilization; Number of patent application (CN:01120628.4) utilizes nano-form, and polymers soln is extruded from template, obtains nano polymer fibre, realizes super-hydrophobic; Number of patent application (CN:02121555.) carries out preoxidation and carbonization (900～1600 ℃) with nanofiber to be handled, and realizes super-hydrophobicly, dredges acid, the surface of thin alkali; Number of patent application (CN:200310121809.1) utilizes the aperture to roll back and forth at polymer surfaces from the alumina formwork of 30～300nm, produces nanostructure at material surface, realizes the super-hydrophobic of surface of polymer material; Number of patent application (CN:200310115722.3) adopts the phase inversion process of solvent-precipitation agent, obtains the polychloroethylene film of porosity and looseness, has realized super-hydrophobic; Number of patent application (CN:01110291.8) adopts chemical vapour deposition to obtain having the film of array structure, adopt concentrated acid then, hydrophobic alcohol and ultrapure water, thermal treatment obtains based superhydrophobic thin films, number of patent application (CN:01118387.X) adopts the method for chemical vapour deposition and thermofixation, with nano level low surface energy powder, dispersion agent stirs in nano-photo catalytic binding agent and organic solvent mixed atmosphere and resolves into emulsion, on 40～380 purpose metal fibre interlacement, successively with spraying, technologies such as dry setting treatment obtain having the super lipophilicity/super-hydrophobicity nano-interface separating net film of self-cleaning function.The common ground of these methods all is based on or adopts the material of low surface energy or makes uneven surface (CN:03146478.5), realizes the super-hydrophobicity of material surface
The colloidal photon crystal material is realized special regulation and control to light with the formed periodic structure of the regular arrangement of single dispersed latex grain to the refraction of light or diffraction.According to the size difference of periodic arrangement, regulate and control the light wavelength difference.The Application Areas difference of corresponding prepared colloid photonic crystal film.In common patent documentation, colloid photonic crystal film is mainly used in wave filter (as CN:01105105.1, CN:98110990.X), photoswitch (CN:02160207.7), optical waveguides (CN:02804125.9, CN:99810798, CN:01132293.4, CN:02811132.X), optical fiber (CN:00803964.X, CN:00803960.7, aspect such as CN:03127694.6).
The present invention is based on the document basis of front, on the photonic crystal basis, realized a kind of method of more simply regulating and control surface wettability.This patent method is different from preceding patent application (CN:200510012021.6), realizes the controlled limitation of wetting property by regulation and control assembling temperature.PH value when assembling by adjusting latex suspension, with the hydrophilic radical of the emulsifying agent on regulation and control emulsion particle surface and emulsion particle table and hydrophilic radical between combination, thereby prepare very hydrophobic or very hydrophilic polymer colloid photon crystal, do not change with the photon band gap of time crystalline substance.
The present invention is based on the patent (CN:200510011219.2 of the inventor in preceding application, CN:200510012021.6, CN:200510012047.0) the single dispersed latex grain of easy manufacture, and big area prepares the colloid photonic crystal film of visible and ultraviolet region fast, and it is applied in decorative paint, the basis of preventing ultraviolet coating and makeup and strengthening photo luminescent devices, in conjunction with the basis of passing through the assembling infiltrating patent of temperature adjusting (CN:200510012021.6) of inventor's application, developed the infiltrating method of a kind of new normal temperature regulation and control polymer photon crystal.
Different with the method for aforementioned documents and patent report, the present invention does not need template and special device, do not need low-surface-energy material yet, pH value when only needing by the assembling of adjustment latex suspension, with the combination between the hydrophilic radical on the hydrophilic radical of the emulsifying agent on regulation and control emulsion particle surface and emulsion particle surface, just can be at normal temperatures single dispersed latex grain of same particle diameter be obtained very hydrophilic (water contact angle is lower than 15 °), the brilliant film of the light of hydrophobic or approaching super-hydrophobic (water contact angle is 151 °), the photon band gap of brilliant film remains unchanged with the time.This method is not appeared in the newspapers in document or patent.
Summary of the invention
One of purpose of the present invention provides a kind of photon crystal membrane of polymer colloid with normal temperature controllable immersing; this film is to have the photon crystal membrane of polymer colloid of large size photon band gap at ultraviolet region; and this colloid photonic crystal film is with low cost, and this film has automatically cleaning and self-shield performance.
Two of purpose of the present invention provides the preparation method that purpose one has the photon crystal membrane of polymer colloid of normal temperature controllable immersing, this method neither needs by specific device, and need not carry out low-surface-energy material on the film surface handles, do not need the assembling temperature is regulated and control yet, only need the pH value when adjusting the latex suspension assembling, just can realize that with the combination of the hydrophilic radical of the emulsifying agent of regulating and control the emulsion particle surface and emulsion particle surface hydrophilic group the wetting property of film carries out a series of transformations from hydrophilic (contact angle is lower than 15 °) to super-hydrophobic (151 °).It is simple that this method has technology, with low cost, equipment do not had characteristics such as particular requirement.
Three of purpose of the present invention provides the purposes that purpose one has the photon crystal membrane of polymer colloid of normal temperature controllable immersing, to widen this application with adjustable infiltrating photon band gap at the photon crystal membrane of polymer colloid of ultraviolet region.
Photon crystal membrane of polymer colloid with normal temperature controllable immersing of the present invention is based on the patent (number of patent application: 200510012021.6) basis of the inventor in preceding application, at first take the batch method letex polymerization by preceding patented method, by suitable adjustment emulsion polymerization technique, can prepare emulsion particle with single stage method with nucleocapsid structure, its particle size range is 100～160nm, and polydispersity index is less than or equal to 0.005.The photon band gap of prepared colloid photonic crystal film is distributed in 200～400nm, and the emulsion particle that obtains does not need any purification just can realize that single dispersion index is less than or equal to 0.005.
Photon crystal membrane of polymer colloid with normal temperature controllable immersing of the present invention is a monodisperse polymer emulsion particle with hard core-soft core structure at latex suspension pH is to pile up with face-centred cubic structure under 6～14 situations to form, the combination of the hydrophilic radical on the hydrophilic radical of the emulsifying agent on emulsion particle surface and emulsion particle surface is: with hydrogen bonded, the part hydrogen bonded, or exist with unbound state separately.Thick 20～the 50nm of the shell of monodisperse polymer emulsion particle, the latex particle size scope is 100～160nm, polydispersity index is less than or equal to 0.005.
The photon band gap of described colloid photonic crystal film is distributed in the ultraviolet region of 200～400nm; Along with the descending variation of latex particle size, the peak generation blue shift of the reflection spectrum of resulting colloid photonic crystal film.
Film of the present invention can be realized the infiltrating adjustment of light epitaxial, and the wetting property of film can be from hydrophilic (contact angle is lower than 15 °) to super-hydrophobic (151 °).Under same temperature, just can obtain super-hydrophobic, hydrophobic, hydrophilic or approaching super hydrophilic photon crystal membrane of polymer colloid with normal temperature controllable immersing by the pH value of adjusting latex suspension.
Preparation method with photon crystal membrane of polymer colloid of normal temperature controllable immersing of the present invention may further comprise the steps:
(1) under the room temperature (25 ℃～40 ℃) with monodisperse polymer emulsion particle emulsion dispersion in water, add inorganic alkali solution and adjust latex suspension pH from 6～14 variations, with the combination between the hydrophilic radical on the hydrophilic radical of adjusting the agent of emulsion particle surfactant emulsion and emulsion particle surface, then resulting monodisperse polymer emulsion particle latex suspension is evenly covered on the flat substrates, wherein the concentration of monodisperse polymer emulsion particle emulsion is 5～30wt%.
(2) at room temperature the volatilization of the monodisperse polymer emulsion particle aqueous solvent that obtains of (25 ℃～40 ℃) set-up procedure (1), the monodisperse polymer emulsion particle is piled up with face-centered cubic on base material, behind dried coating film, just form the orderly three-D photon crystal film of periodic arrangement, film is peeled off from base material, can be obtained having the colloid photonic crystal film of photon band gap in the ultraviolet region.
Difference according to the pH value of latex suspension, the hydrophilic radical of regulation and control emulsion particle surfactant emulsion agent and the combination of the hydrophilic radical on emulsion particle surface: with hydrogen bonded, part hydrogen bonded or exist with unbound state separately, finally obtain super-hydrophobic, hydrophobic, hydrophilic or approaching super hydrophilic polymer photon crystal film with controllable immersing.
Method of the present invention can just can obtain super-hydrophobic, hydrophobic, hydrophilic by the pH value of adjusting latex suspension under same temperature or approaching super hydrophilic polymer photon crystal film with controllable immersing.
Single dispersion index of described monodisperse polymer emulsion particle is less than or equal to 0.005, and particle size range is 100～160nm.Reduce the photon band gap generation blue shift of gained crystal film with photon from 160 to 100nm with latex particle size.
Described mineral alkali is ammoniacal liquor, sodium hydroxid, potassium hydroxide or their mixture etc.
The preparation that the present invention has the monodisperse polymer emulsion particle of nucleocapsid structure is to adopt one step of batch method letex polymerization to realize that the typical preparation method who is adopted is:
With the monomer 1 that wetting ability increases successively, monomer 2, monomer 3 blending dispersion are in the aqueous solution that contains pH buffer reagent and emulsifying agent; Is 300～800rpm with resulting emulsion polymerization systems at rotating speed, be preferably under the rotating speed of 500rpm and mix, and be heated to 65～85 ℃ (preferred temperature are 78 ℃), the initiator that adds initiator total amount 1/2 makes reaction begin to carry out, react the initiator that adds initiator total amount 1/4 after 2～4.5 hours again, remaining initiator is continuing reaction adding after 2～4.5 hours, and the 0.2wt%～1wt% of the suitable total monomer weight of the total consumption of described initiator is preferably 0.3wt%.Reaction continues end in 1～3 hour subsequently, obtains single dispersion index and is less than or equal to 0.005, and particle size range is the monodisperse polymer emulsion particle with hard core-soft core structure of 100～160nm.
Wherein, the total consumption of monomer is that (consumption of monomer 1 is 88～94wt% of total monomer weight in the emulsion polymerization systems for 11～17wt% of emulsion polymerization systems gross weight, monomer 2 is 3～6wt%, monomer 3 is 3～6wt%), the concentration of pH buffer reagent in emulsion polymerization systems is 0.02～0.99wt%, the concentration of emulsifying agent in emulsion polymerization systems is that (weight ratio 0.04～0.5wt%) of monomer total amount in emulsifying agent consumption and the polymerization system, the concentration of initiator in emulsion polymerization systems is 0.02～0.99wt% to 0.0068～0.067wt%.
The realization of the nucleocapsid structure of monodisperse polymer emulsion particle does not need special technological process, just according to reaction monomers in the polymerization system and the hydrophilic difference of phase emergencing copolymer, hydrophilic radical progressively moves to the top layer in polymerization process, and lipophilic group partly moves to stratum nucleare, finally realizes hard core-soft core structure.
The reaction times of system is 5～12 hours, and the preferred reaction time is 10～11 hours.
Described reaction monomers is the compound that contains at least one ethylene linkage in the molecule, and its wetting ability increases successively, and monomer 1 is the relatively poor reaction monomers of wetting ability, as vinylbenzene, vinyl toluene or their mixture; And monomer 2 is a wetting ability monomer relatively preferably, as esters of acrylic acid, vinyl acetate or their mixture etc., described esters of acrylic acid is selected from methyl methacrylate, Jia Jibingxisuanyizhi, butyl methacrylate, isobutyl acrylate or their any mixture; Monomer 3 is the very strong water-soluble reaction monomer of wetting ability, as vinylformic acid, methacrylic acid, acrylamide, propylene cyanogen or their any mixture etc.The introducing of minor amount of water dissolubility reaction monomers 3 is in order to increase the stability of system.And selecting for use of the different successively reaction monomers of wetting ability is for spontaneous formation nucleocapsid structure in polymerization process.
Described initiator is selected from alkali metal sulfates, ammonium persulphate or their mixture.Wherein initiator is that form with the aqueous solution is incorporated in the polymerization system, and its strength of solution is 2～5wt%.
Described basic metal is selected from potassium or sodium.
The emulsifying agent of the size of the final gained emulsion particle of described adjusting is selected from one or more the mixture etc. in sodium laurylsulfonate, sodium lauryl sulphate, the Sodium dodecylbenzene sulfonate.
Described pH buffer reagent is selected from one or more the mixture etc. in bicarbonate of ammonia, sodium bicarbonate, the sodium hydrogen phosphate.
For guaranteeing effective realization of emulsion particle monodispersity, strict control stir speed (S.S.) is fed in raw material and heating schedule, to avoid the appearance of secondary nucleation in the polymerization process.
Emulsifying agent consumption difference in the polymerization system of the present invention, the particle diameter difference of gained emulsion particle causes final colloid photonic crystal film photon band gap position difference; Emulsifying agent is in the mode introducing system by solution among the present invention.The weight ratio of monomer total amount is respectively 0.238%, 0.214% in emulsifying agent consumption and polymerization system, and 0.19%, 0.119%, 0.095%, 0.071%, 0.048% o'clock, preparation-obtained latex particle size was followed successively by 100,115,120,125,130,150,160nm, the photon band gap position of corresponding colloid photonic crystal film is respectively: 253,281,300,319,327,345,380nm.。
Become the difference of film base material according to colloidal photon crystal, resulting coating can be used on the different substrate materials.Described base material comprises glass, silicon chip, paper or stainless steel plate etc.
Photon crystal membrane of polymer colloid with normal temperature controllable immersing of the present invention can be used as the pre-antiultraviolet coated material with fire resistance characteristic.
The photon crystal membrane of polymer colloid with normal temperature controllable immersing of the resulting photon band gap of the present invention in the ultraviolet region can be used as the ultraviolet material of prevention or can be used as the material that prevents in the ultraviolet makeup, or with UV light absorber or the membrane-forming agent of latex crystal film with photon as pre-antiultraviolet coating; Or be applied in the association area of other pre-antiultraviolet product.
It is simple that the present invention preparation has the method for photon crystal membrane of polymer colloid of normal temperature controllable immersing, required equipment is simple, regulate and control the pH value of latex suspension at normal temperatures, just can prepare super-hydrophobic, hydrophobic, hydrophilic or approaching super hydrophilic polymer photon crystal film with controllable immersing.This method helps realizing having the mass preparation of the photon crystal membrane of polymer colloid of normal temperature controllable immersing.The photon crystal membrane of polymer colloid that gained of the present invention has the normal temperature controllable immersing can be used as the ultraviolet coating of prevention.
The single dispersed latex grain shell in self assembling process with hard core-soft core structure that aforementioned one step of employing emulsion polymerization prepared obtains deforms, and forms fine and close honeycomb structure, helps improving the mechanical stability of film.
The photon crystal membrane of polymer colloid with normal temperature controllable immersing that this method prepares is owing to being polymeric film, and is when being applied in the ultraviolet coating of prevention, nontoxic to human body.
Because the used material of photon crystal membrane of polymer colloid with normal temperature controllable immersing is functional adjustable polymkeric substance, has good agglutinating value(of coal) between the feasible like this and various base materials.
The invention will be further described below in conjunction with accompanying drawing and by embodiment.
Description of drawings
The scanning electron microscope picture of Fig. 1 embodiment of the invention 1 polymer photon crystal film, a) upper surface, b) section.Illustration is the transmission electron microscope photo that the embodiment of the invention 1 has the emulsion particle of nucleocapsid structure.
Fig. 2 .a) and b) be respectively water droplet in the embodiment of the invention 1 and be respectively photo on the 6 and 14 resulting films at pH.C) and d) be respectively pH in the embodiment of the invention 1 and be respectively the pattern of emulsion particle on 6 and 14 the film, just under two kinds of situations emulsifying agent have a transition.Wherein the arrow indication is the hydrophilic radical SO of emulsifying agent Sodium dodecylbenzene sulfonate
3 -And form the configuration synoptic diagram of hydrogen bond between the carboxyl of emulsion particle surface hydrophilicity.
Fig. 3. pH is respectively the reflective infrared spectrogram of 6 and 14 gained films in the embodiment of the invention 1.
Embodiment
Under 25 ℃ of room temperatures, with concentration is the employing number of patent application of 5wt%: (particle diameter is 160nm to poly-(vinylbenzene-methyl methacrylate-vinylformic acid) emulsion particle of monodisperse polymer of 200510012021.6 method preparation, has tangible nucleocapsid structure, see the vignette among Fig. 1 a), add ammoniacal liquor and adjust latex suspension pH, to adjust the hydrophilic radical SO of emulsion particle surfactant emulsion agent Sodium dodecylbenzene sulfonate from 6～14 variations
3 -And the combination between the hydrophilic radical carboxyl on emulsion particle surface evenly covers resulting monodisperse polymer emulsion particle emulsion on the flat substrates then, and wherein the concentration of monodisperse polymer emulsion particle emulsion is 5～30wt%.The latex suspension of gained is evenly covered on glass, silicon chip or the stainless steel plate base material of cleaning, the base material of filming is put in room temperature, treat that wherein dispersion liquid moisture evaporation is done after, just form the orderly three-D photon crystal film of periodic arrangement.From 6～12 differences, the wetting property result of prepared film such as table 1 (having listed the variation of different assembling pH values to the contact angle of film in the table) can be known by data in the table according to the pH of monodisperse polymer emulsion, pH raising during with assembling, and the contact angle of film reduces gradually.
It is the emulsion particle of 160nm is assembled the light epitaxial that obtains when pH=6 stereoscan photograph that Fig. 1 a, Fig. 1 b have listed particle diameter.As can be seen from the figure, the face-centered cubic that emulsion particle still keeps closely piling up is piled up, and this has determined the photon band gap invariant position of the light epitaxial that its different assembling pH values obtain.
The chemical structure on emulsion particle surface changed when photon crystal membrane of polymer colloid was assembled at different pH, the hydrophilic radical that mainly shows as emulsifying agent is different with the combination of the hydrophilic radical carboxyl of emulsion particle surface enrichment proton: form hydrogen bond, or part hydrogen bond, or exist with free form separately, see Fig. 1 c, Fig. 1 d.(Fig. 1 c) exists with the hydrogen bond form between the sulfonate radical of emulsifying agent and the carboxyl when pH is 6, and the hydrogen bond configuration is seen the arrow indication place of Fig. 1 c.Firm hydrogen bond is lured into and finally caused emulsifying agent to exist with the configuration of a kind of " back suction is attached ": hydrophilic radical is attached on the emulsion particle, and hydrophobic grouping is free in the air.This pattern just makes the film that finally obtains present as shown in Figure 1a super-hydrophobic.When in latex suspension, introducing ammoniacal liquor, pH=12, shown in Fig. 1 d: carboxyl wherein takes off proton under the ammoniacal liquor effect, form the carboxylic radical ion, can not form hydrogen bond between carboxylic radical ion and the sulfonate radical like this, hydrophilic carboxyl and sulfonate ion exist with unbound state, cause the formation of final super hydrophilic film shown in Fig. 1 b like this.When pH between 6～12, just have the part hydrogen bond, the part take off proton situation, the wetting property that can cause film is from super-hydrophobic to hydrophobic, and is hydrophilic, super hydrophilic conversion.
Emulsifying agent (Sodium dodecylbenzene sulfonate) is confirmed by reflection absorption ftir spectroscopy with the different combinations of surperficial carboxyl under different pH situations: when pH is 6, very wide one of 1099 positions discovery, very strong wavestrip, show that sulfonate radical exists with the hydrogen bond form, and when pH is 12, the roomy wavestrip in 1099 places was divided into two small peaks in the past, found a very big peak simultaneously in 1193 positions.It is 12 o'clock that this statement of facts is introduced ammoniacal liquor pH, and the hydrogen bond peak disappears, and the free sulfonate ion increases, and this result is consistent with the infiltrating observation of above-mentioned film.In addition, during pH=12, the emerging COO in 1543 places
-The peak has also illustrated the proton that takes off of carboxyl.
The different pH of table 1 latex suspension are to the infiltrating influence of telolemma
| pH |
| 6 | 9 | 10 | 12 | |
| The contact angle of film (°) | 151 | 120 | 80 | 8 |
Embodiment 2:(is applied to the water-proof coating of ultraviolet region)
Embodiment 3:(waterproof is prevented ultraviolet material)
At room temperature be the photon crystal membrane of polymer colloid that poly-(vinylbenzene-methyl methacrylate-vinylformic acid) emulsion particle of monodisperse polymer of 5wt% prepares by embodiment 1 method, when the particle diameter of monodisperse polymer emulsion particle is respectively 100,115 with the controlled infiltration of normal temperature with concentration, 120,125,130,150 or 160 nanometers, the photon band gap position of corresponding preparation-obtained colloid photonic crystal film is respectively 253,281,300,319,327,345,380nm.Resulting coating can be directly used in pre-antiultraviolet, and according to base materials employed difference, used coating can be used in automobile adhesive film, on the facilities such as glass.
Claims (11)
1. photon crystal membrane of polymer colloid with normal temperature controllable immersing, it is characterized in that: this film is a monodisperse polymer emulsion particle with hard core-soft core structure at latex suspension pH is to pile up with face-centred cubic structure under 6～14 situations to form, and the hydrophilic radical on the hydrophilic radical of the emulsifying agent on emulsion particle surface and emulsion particle surface is with hydrogen bonded, part hydrogen bonded or exist with unbound state separately; Thick 20～the 50nm of the shell of monodisperse polymer emulsion particle, the latex particle size scope is 100～160nm, polydispersity index is less than or equal to 0.005.
2. photon crystal membrane of polymer colloid according to claim 1 is characterized in that: described film obtains super-hydrophobic, hydrophobic, hydrophilic by the pH value of adjusting latex suspension under same temperature or approaching super hydrophilic photon crystal membrane of polymer colloid with normal temperature controllable immersing.
3. photon crystal membrane of polymer colloid according to claim 1 is characterized in that: described monodisperse polymer emulsion particle prepares by following method:
With the monomer 1 that wetting ability increases successively, monomer 2, monomer 3 blending dispersion are in the aqueous solution that contains pH buffer reagent and emulsifying agent; Be to mix under the rotating speed of 300～800rpm resulting emulsion polymerization systems at rotating speed, and be heated to 65～85 ℃, the initiator that adds initiator total amount 1/2 makes reaction begin to carry out, react the initiator that adds initiator total amount 1/4 after 2～4.5 hours again, remaining initiator is continuing reaction adding after 2～4.5 hours, 0.2～1wt% of the suitable total monomer weight of the total consumption of described initiator; Obtain single dispersion index after reaction finishes and be less than or equal to 0.005, particle size range is the monodisperse polymer emulsion particle with hard core-soft core structure of 100～160nm;
11～17wt% that described monomeric total consumption is the emulsion polymerization systems gross weight; The consumption of monomer 1 is 88～94wt% of total monomer weight in the emulsion polymerization systems, and monomer 2 is 3～6wt%, and monomer 3 is 3～6wt%; The concentration of pH buffer reagent in emulsion polymerization systems is 0.02～0.99wt%, and the concentration of emulsifying agent in emulsion polymerization systems is 0.0068～0.067wt%;
Described monomer 1 is selected from vinylbenzene, vinyl toluene or their mixture;
Described monomer 2 is selected from acrylate, vinyl acetate or their mixture;
Described monomer 3 is selected from vinylformic acid, methacrylic acid, acrylamide, propylene cyanogen or their any mixture.
4. photon crystal membrane of polymer colloid according to claim 3 is characterized in that: described acrylate is selected from methyl methacrylate, Jia Jibingxisuanyizhi, butyl methacrylate, isobutyl acrylate or their any mixture.
5. photon crystal membrane of polymer colloid according to claim 3 is characterized in that: described initiator is that the form with the aqueous solution is incorporated in the polymerization system, and its strength of solution is 2～5wt%; Initiator is selected from alkali metal sulfates, ammonium persulphate or their mixture.
6. photon crystal membrane of polymer colloid according to claim 3 is characterized in that: described emulsifying agent is selected from one or more the mixture in sodium laurylsulfonate, sodium lauryl sulphate, the Sodium dodecylbenzene sulfonate.
7. photon crystal membrane of polymer colloid according to claim 3 is characterized in that: described pH buffer reagent is selected from one or more the mixture in bicarbonate of ammonia, sodium bicarbonate, the sodium hydrogen phosphate.
8. photon crystal membrane of polymer colloid according to claim 1, it is characterized in that: the photon band gap of described photon crystal membrane of polymer colloid is in the ultraviolet region, along with the descending variation of latex particle size, the peak generation blue shift of the reflection spectrum of resulting colloid photonic crystal film.
9. preparation method according to each described photon crystal membrane of polymer colloid of claim 1～8, it is characterized in that: this method may further comprise the steps:
(1) under the room temperature with monodisperse polymer emulsion particle emulsion dispersion in water, add inorganic alkali solution and adjust latex suspension pH from 6～14 variations, with the hydrophilic radical on the hydrophilic radical of adjusting the agent of emulsion particle surfactant emulsion and emulsion particle surface with hydrogen bonded, part hydrogen bonded or exist with unbound state separately, then resulting monodisperse polymer emulsion particle latex suspension is evenly covered on the flat substrates, wherein the concentration of monodisperse polymer emulsion particle emulsion is 5～30wt%;
(2) volatilization of the monodisperse polymer emulsion particle aqueous solvent that obtains of set-up procedure (1) at room temperature, the monodisperse polymer emulsion particle is piled up with face-centered cubic on base material, behind dried coating film, film is peeled off from base material, obtain having the colloid photonic crystal film of photon band gap in the ultraviolet region.
10. method according to claim 9 is characterized in that: described film obtains super-hydrophobic, hydrophobic, hydrophilic by the pH value of adjusting latex suspension under same temperature or approaching super hydrophilic photon crystal membrane of polymer colloid with normal temperature controllable immersing.
11. purposes according to each described photon crystal membrane of polymer colloid of claim 1～8, it is characterized in that: described photon crystal membrane of polymer colloid is as the ultraviolet material of prevention or as the material of prevention in the ultraviolet makeup, or with the latex crystal film with photon as the UV light absorber or the membrane-forming agent of antiultraviolet coating in advance.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015027880A1 (en) * | 2013-08-26 | 2015-03-05 | Institute Of Chemistry, Chinese Academy Of Sciences | Photonic crystal microsphere |
| 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 |
| CN107116855A (en) * | 2017-05-12 | 2017-09-01 | 京东方科技集团股份有限公司 | The adjusting method of optical module, optics and optics |
| CN108359341A (en) * | 2018-02-07 | 2018-08-03 | 浙江理工大学上虞工业技术研究院有限公司 | A kind of preparation method of nano-porous structure anti-reflection coatings |
| CN115011278A (en) * | 2022-05-14 | 2022-09-06 | 复旦大学 | 3D colloidal photonic crystal pressure-sensitive adhesive with bright structural color and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9921048D0 (en) * | 1999-09-07 | 1999-11-10 | Secr Defence | Colloidal photonic crystals |
| WO2001076871A1 (en) * | 2000-04-07 | 2001-10-18 | Eric Baer | Polymer 1d photonic crystals |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015027880A1 (en) * | 2013-08-26 | 2015-03-05 | Institute Of Chemistry, Chinese Academy Of Sciences | Photonic crystal microsphere |
| 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 |
| CN105525343B (en) * | 2015-12-18 | 2018-03-16 | 中国科学院理化技术研究所 | A kind of preparation method and application of opal structural or counter opal structure carbon point photonic crystal |
| CN107116855A (en) * | 2017-05-12 | 2017-09-01 | 京东方科技集团股份有限公司 | The adjusting method of optical module, optics and optics |
| CN107116855B (en) * | 2017-05-12 | 2019-05-24 | 京东方科技集团股份有限公司 | The adjusting method of optical module, optical device and optical device |
| US11644601B2 (en) | 2017-05-12 | 2023-05-09 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Anti-fogging film, anti-fogging component, adjustment method therefor, and vehicle-mounted device |
| CN108359341A (en) * | 2018-02-07 | 2018-08-03 | 浙江理工大学上虞工业技术研究院有限公司 | A kind of preparation method of nano-porous structure anti-reflection coatings |
| CN108359341B (en) * | 2018-02-07 | 2021-06-29 | 浙江理工大学上虞工业技术研究院有限公司 | Preparation method of nano porous structure antireflection coating |
| CN115011278A (en) * | 2022-05-14 | 2022-09-06 | 复旦大学 | 3D colloidal photonic crystal pressure-sensitive adhesive with bright structural color and preparation method thereof |
| CN115011278B (en) * | 2022-05-14 | 2024-03-08 | 复旦大学 | 3D colloid photon crystal pressure-sensitive adhesive with bright structural color and preparation method thereof |
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| CN100556937C (en) | 2009-11-04 |
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