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CN106277839B - Composite film with super-amphiphobic self-cleaning, anti-reflection and permeability-increasing performances and preparation method thereof - Google Patents

Composite film with super-amphiphobic self-cleaning, anti-reflection and permeability-increasing performances and preparation method thereof Download PDF

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Publication number
CN106277839B
CN106277839B CN201510249599.7A CN201510249599A CN106277839B CN 106277839 B CN106277839 B CN 106277839B CN 201510249599 A CN201510249599 A CN 201510249599A CN 106277839 B CN106277839 B CN 106277839B
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laminated film
super
silicon dioxide
amphiphobic
silica
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CN106277839A (en
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贺军辉
耿志
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Technical Institute of Physics and Chemistry of CAS
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Technical Institute of Physics and Chemistry of CAS
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Abstract

The invention discloses a composite film with super-amphiphobic self-cleaning, anti-reflection and permeability-increasing performances and a preparation method thereof. The composite film comprises a silicon dioxide solid nano-sphere layer, a silicon dioxide hollow nano-sphere layer paved on the silicon dioxide solid nano-sphere layer and a silicon dioxide nano-sheet layer paved on the silicon dioxide hollow nano-sphere layer; the particle size of the solid silicon dioxide nanospheres is 20-50 nanometers; the particle size of the silicon dioxide hollow nanospheres is 40-100 nanometers; the thickness of the composite film is 0.5-1.5 micrometers; the surface of the composite film is modified with fluorosilane groups. The composite film which is constructed on the glass substrate and has the advantages of simple preparation method, good mechanical property, super-amphiphobic self-cleaning property, anti-reflection property and permeability-increasing property is prepared by taking the glass substrate as a substrate and then adopting a pulling method and a spraying method. The composite film has the advantages of simple preparation process, low cost, good light transmittance, excellent mechanical strength, good durability, wide application range and the like.

Description

A kind of laminated film and its preparation with super-amphiphobic automatically cleaning and anti-reflection performance Method
Technical field
The present invention relates to technical field of nanometer material preparation.There is super-amphiphobic automatically cleaning more particularly, to one kind and subtract The laminated film and preparation method thereof of anti-anti-reflection performance.
Background technology
Growing with population in the world, fossil resources are petered out, and finding emerging resource becomes today's society The most important thing.Solar energy has obtained the extensive concern of society as a kind of inexhaustible resource.Solar-electricity Therefore pond industry has also obtained significant progress.Although solar energy power generating is the generation technology of a cleanliness without any pollution, Due to higher cost and lower photoelectric conversion efficiency, can not also be competed now with thermal power generation.If the sun can be improved The light utilization efficiency of energy battery, then can improve the generated energy of solar cell module and can reduce cost.It is covered in solar energy The cover-plate glass of battery component upper surface typically uses the ultra-clear glasses of tempering, in crystal silicon solar energy battery spectral response Wave-length coverage in the average transmittance of (380 nanometers~1100 nanometers) be about 90%~92%, still there is about 8%~9% to carry High spatial.Thus, a kind of method that can improve light utilization efficiency as effective low cost using antireflection film.
Simultaneously as sun-drenched desert area is more suitable for solar panel power generation, the sand on solar panel is cleaned Dirt needs to expend a large amount of manpower and materials, therefore structure automatic cleaning coating becomes focus of people's attention on solar panel.It is super The one kind of hydrophobic coating as automatic cleaning coating, can well solve this problem.Super-hydrophobic coat has larger surface Roughness and low surface energy result in contact angle of the water on its surface and are more than 150 degree, and roll angle is less than 10 degree.
In practical applications, super-hydrophobic coat inevitably touches low-surface-energy organic reagent, to pollute coating Surface makes it lose super-hydrophobic performance.It can be well solved with not only super-hydrophobic but also superoleophobic super-double-hydrophobic surface coating This problem.Super-amphiphobic coating needs the surface roughness of bigger, it will usually prodigious light scattering is generated, to reduce coating Light transmission.In addition, the micron-nanometer double-layer structure that super-amphiphobic coating has is easy to be destroyed by external force, lost so as to cause it The performance of super-amphiphobic is gone.Accordingly, it is desirable to provide a kind of not only with super-amphiphobic self-cleaning performance but also with anti-reflection performance Laminated film.
Invention content
It is an object of the present invention to provide a kind of laminated films with super-amphiphobic automatically cleaning and anti-reflection performance.
The THIN COMPOSITE with super-amphiphobic automatically cleaning and anti-reflection performance that it is another object of the present invention to provide a kind of The preparation method of film.
The present invention uses three kinds of different Nano particles of silicon dioxide solution, is the titanium dioxide of 20~50 nanometers of grain size respectively Silicon solid nanospheres colloidal sol, grain size be 40~100 nanometers silicon dioxide hollow nanosphere colloidal sol and with a certain amount of tetraethoxy The silica nanometer piece solution of silane and mixed in hydrochloric acid, then prepares film using czochralski method and spray coating method.System of the present invention Preparation Method is simple, of low cost, the laminated film good strength prepared, performance and super-amphiphobic automatically cleaning with anti-reflection Performance, be well suited for outdoor large-scale application.
To reach above-mentioned first purpose, the present invention uses following technical proposals:
A kind of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance, the laminated film includes silica Solid nanospheres layer, the silicon dioxide hollow nanometer layers of balls being laid on silica solid nanospheres layer and it is laid in dioxy Silica nanometer lamella in SiClx hollow Nano layers of balls;The grain size of the silica solid nanospheres is received for 20~50 Rice;The grain size of the silicon dioxide hollow nanosphere is 40~100 nanometers;The thickness of the laminated film is 0.5~1.5 micro- Rice;The surface modification of the laminated film has silicon fluoride group.
To reach above-mentioned second purpose, the present invention uses following technical proposals:
A kind of preparation method of the laminated film with super-amphiphobic automatically cleaning and anti-reflection performance, which is characterized in that packet Include following steps:
1) silica solid nanospheres colloidal sol is prepared;
2) silicon dioxide hollow nanosphere colloidal sol is prepared;
3) silica nanometer piece is prepared;
4) the silica nanometer piece obtained by step 3) is scattered in ethyl alcohol, tetraethoxysilane (99 is then added + %) and concentrated hydrochloric acid (36~38wt%), ultrasound is carried out, silica nanometer piece solution is obtained;
5) glass substrate cleaned is immersed in the silica solid nanospheres colloidal sol that step 1) obtains, is lifted out Glass substrate spontaneously dries in air, this step of repetition is multiple, obtains silica solid nanospheres coating;Followed by Spray coating method by the silicon dioxide hollow nanosphere colloidal sol that step 2) obtains and silica nanometer piece solution that step 4) obtains according to It is secondary to spray to silica solid nanospheres coating surface, obtain composite coating;Then obtained composite coating is placed on horse Not calcined in stove;Finally utilizing Simplified chemical vapor deposition method, (hydrophobization is repaiied to composite coating surface modification silicon fluoride group Decorations), you can obtain laminated film of the final products with super-amphiphobic automatically cleaning and anti-reflection performance.
Preferably, real using stober legal systems prepared silicon dioxide using tetraethoxysilane and ammonium hydroxide as raw material in step 1) Heart nanosphere colloidal sol.
Preferably, in step 2), the method for preparing silicon dioxide hollow nanosphere colloidal sol is:By 0.3~0.9 gram of polypropylene Acid is dissolved in 3~6 milliliters of ammonium hydroxide, ultrasonic disperse 5~20 minutes;Then it is added dropwise in 50~150 milliliters of absolute ethyl alcohols, Stirring obtains mixed liquor in 10~50 minutes;1~4 milliliter of tetraethoxysilane is added dropwise with 20~70 microlitres of speed per minute Into mixed liquor;After completion of dropwise addition, acquired solution is stirred at room temperature 5~15 hours, and it is molten to obtain silicon dioxide hollow nanosphere Glue.
Preferably, in step 3), the method for preparing silica nanometer piece is:The method for preparing silica nanometer piece For:0.2~0.8 gram of cetyl trimethylammonium bromide is dissolved in 50~100 milliliters of water, 0.6~1 milliliter of ammonium hydroxide and 10~30 millis In the mixed solution for rising ether, after stirring 10~50 minutes, 1~5 milliliter of tetraethoxysilane is rapidly joined, is stirred at room temperature 2~6 After hour, white precipitate is obtained;Through detaching, washing, dry, white precipitate is calcined 4~6 hours under 500~600 degree, you can Silica nanometer piece is made.
Preferably, in step 4), it is scattered in a concentration of 0.5~1.5 grams per liter of the silica nanometer piece in ethyl alcohol;Institute The ratio of the addition and silica nanometer piece overall solution volume of stating tetraethoxysilane is 0~1:10;The concentrated hydrochloric acid adds The ratio for entering amount and silica nanometer piece overall solution volume is 0~1:75;The time of the ultrasound is 5~15 minutes.
Preferably, in step 5), the glass substrate cleaned, cleaning method is that glass substrate is first carried out ultrasound Washing 10~30 minutes, is then dried up with inert gas, then is cleaned 5~10 minutes by oxygen plasma, and cleaning is with voltage 600 volts, the flow of oxygen is 800~1000 ml/mins.
Preferably, in step 5), the time that glass substrate immerses in silica solid nanospheres colloidal sol is 10~50 seconds; The speed of the lifting is 100~200 mm/mins;The time that the glass substrate lifted out spontaneously dries in air be 1~ 3 minutes;Preferably, lifting drying steps are repeated 3 times.
Preferably, in step 5), the composite coating is calcined 2~4 hours in 500~600 degrees Celsius of Muffle furnace.
Preferably, in step 5), the method for the Simplified chemical vapor deposition is that the composite coating after calcining is placed in appearance In device, 30~70 microlitres of perfluoro capryl trichlorosilane is added dropwise in container bottom, sealing heats 2~6 under 100~150 degree Hour;Then container is opened, 1~3 hour is heated under 100~200 degree.
The present invention constructs simple, satisfactory mechanical property, super-amphiphobic automatically cleaning with preparation method and subtracts on the glass substrate Anti- antireflective laminated film.Surface coats the glass substrate of laminated film of the present invention in a length of 300~2500 nanometers of the area of light wave The highest light transmittance in domain is increased to 96.3% by the 91.4% of blank glass substrate, wherein in 400~800 nanometers of visible light wave The average transmittance in long region is increased to 95.4% by the 90.8% of blank glass substrate, visible close at 400~2500 nanometers The average transmittance of infrared wavelength region is increased to 93.4% by the 90.2% of blank glass substrate.
Contact angle (WCA) of the water on the glass substrate that there is laminated film of the present invention on surface is 169~171 degree, ethylene glycol Contact angle (OCA) on laminated film of the present invention is 150~152 degree.
Surface has the glass substrate of laminated film of the present invention being subjected to 2H, 3H, 4H, and 5H Pencil scratch test rear film is not There is breakage, only particle therein deformation, it is possible thereby to illustrate that the film has good adhesion property.
Surface has the glass substrate of the laminated film of the present invention coating after being subjected to the test of ASTM D3359-93 tape methods not have Damage, coating adhesion are 5A ranks.
There is the glass substrate of laminated film of the present invention on surface primary with 3M scotch tape adhesions, ten times, 20 times, and 30 Secondary, the contact angle of water is 169 degree, 161 degree, 155 degree, 155 degree and 155 degree after 40 times, all has super-hydrophobic performance.
Surface has the glass substrate of laminated film of the present invention being subjected to 30 grams of sea sands from water after one meter of eminence impact test Contact angle is 157 degree, is still super-hydrophobic coat.Surface has the glass substrate of laminated film of the present invention to be subjected in two minutes 4500 contact angles for dripping and (often dripping about 22 microlitres) after 50 centimetres of eminence impact experiments water are 160 degree, are still super thin Water coating.
Surface has the glass substrate of laminated film of the present invention being subjected to one week, two weeks, one month, two months and four months families The contact angle of water after outer test, respectively 167 degree, 166 degree, 164 degree, 163 degree and 163 degree, be still super-hydrophobic coat.
Simple, satisfactory mechanical property, super-amphiphobic automatically cleaning are constructed with preparation method on the above test specification glass substrate And the laminated film of the present invention of anti-reflection has good mechanical strength, is suitable for outdoor application.
Beneficial effects of the present invention are as follows:
The present invention prepares the tool constructed on glass substrate using glass substrate as substrate, then by czochralski method and spray coating method Have that preparation method is simple, laminated film of satisfactory mechanical property, super-amphiphobic automatically cleaning and anti-reflection performance.On the glass substrate The laminated film of simple, satisfactory mechanical property, super-amphiphobic automatically cleaning and anti-reflection with preparation method constructed is with system The advantages that standby simple for process, at low cost, light transmission is good, mechanical strength is superior, durability is good, applied widely.
Description of the drawings
Specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the transmission electron microscope picture of the silicon dioxide hollow nanosphere colloidal sol prepared in the embodiment of the present invention 1.
Fig. 2 shows the transmission electron microscope pictures of the silica nanometer piece solution prepared in the embodiment of the present invention 1.
Fig. 3 shows the laminated film with super-amphiphobic automatically cleaning and anti-reflection performance prepared in the embodiment of the present invention 1 Scanning electron microscope (SEM) photograph under low power number (a) and high magnification numbe (b).
Glass substrate coated with laminated film that Fig. 4 shows to prepare in the embodiment of the present invention 1 and blank glass substrate Integrating sphere penetrates spectrogram.
Fig. 5 shows the water contact angle (a) and second of the glass substrate coated with laminated film prepared in the embodiment of the present invention 3 The digital pictures of glycol contact angle (b).
Fig. 6 shows that prepared laminated film is being subjected to 2H, 3H, 4H in the embodiment of the present invention 4, after the test of 5H Pencil scratch Scanning electron microscope (SEM) photograph under low power number (a) and high magnification numbe (b).
Fig. 7 shows that laminated film prepared in the embodiment of the present invention 5 is low after being subjected to tape adhesion test Scanning electron microscope (SEM) photograph under multiple (a) and high magnification numbe (b).
Fig. 8 shows that prepared laminated film is being subjected to 1 time (a) in the embodiment of the present invention 6,10 times (b), 20 times (c), 30 times (d) the contact angle digital photograph of the water and after 40 (e) viscose glue tests.
Fig. 9 shows the contact of prepared laminated film (a) and rear (b) before being subjected to sand surfing test in the embodiment of the present invention 7 Angle digital photograph.
Figure 10 shows (a) and the contact of (b) afterwards before the test that is subjected to dripping of prepared laminated film in the embodiment of the present invention 8 Angle digital photograph.
Figure 11 shows that prepared laminated film is before through tested person (a) in the embodiment of the present invention 9, is subjected to one week (b), two All (c), one month (d), the contact corner brace photo of two month (e) and water after four months (f) outdoor test.
Specific implementation mode
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
1) silica solid nanospheres colloidal sol is prepared;
2) silicon dioxide hollow nanosphere colloidal sol is prepared;
3) silica nanometer piece is prepared;
Embodiment 1
1) silica solid nanospheres colloidal sol is prepared:
5 milliliters of ammonium hydroxide is placed in 100 milliliters of ethanol solutions, 3 milliliters of four ethoxies are added to after 60 degree in heating water bath Base silane keeps isothermal reaction 10 hours.The grain size of prepared silica solid nanospheres is 20~50 nanometers.
2) silicon dioxide hollow nanosphere colloidal sol is prepared:
The polyacrylic acid of certain mass is dissolved in 4.5 milliliters of ammonium hydroxide respectively, ultrasonic disperse 10 minutes;Then add dropwise Enter to being mounted in the container of 90 milliliters of absolute ethyl alcohols, stirring obtains mixed liquor in 15 minutes;By the four of 1.5 milliliters~2.5 milliliters Ethoxysilane is added drop-wise to 45 microlitres of speed per minute in the mixed liquor;After completion of dropwise addition, acquired solution at room temperature (25 DEG C) be stirred 10 hours, obtain the sol solutions containing hollow silica ball nano-particle.
When the quality of polyacrylic acid is respectively 0.3 gram, 0.6 gram and 0.9 gram, prepared hollow silica ball nanometer The average grain diameter of hollow silica ball nano-particle in the sol solutions of particle is respectively 42 nanometers, 60 nanometers and 93 nanometers.
Fig. 1 is the transmission electron microscope picture of the silicon dioxide hollow nanosphere colloidal sol prepared by the present invention.
3) silica nanometer piece is prepared:
0.2~0.8 gram of cetyl trimethylammonium bromide (CTAB) is dissolved in 70 milliliters of water, 0.8 milliliter of ammonium hydroxide and 20 millis In the mixed solution for rising ether.After solution stirs 30 minutes, 1~5 milliliter of tetraethoxysilane is rapidly joined.Solution is stirred at room temperature After 4 hours, white precipitate is obtained.By detaching, washing, dry, white precipitate calcined under 550 degree 5 hours it is extra to remove Cetyl trimethylammonium bromide, you can silica nanometer piece is made.
4) silica nanometer piece solution is prepared:
Nanometer sheet obtained by step 3) is scattered in ethyl alcohol, a concentration of 1g/L then will be total with silica nanometer piece Liquor capacity ratio is 0~1:10 tetraethoxysilane (99+%) and 0~1:75 concentrated hydrochloric acid (36~38wt%), ultrasound are molten Liquid 10 minutes.
Fig. 2 is the transmission electron microscope picture of the silica nanometer piece solution containing crosslinking agent prepared by the present invention.
5) the functional laminated film with super-amphiphobic automatically cleaning and anti-reflection performance of processing machinery:
Multi-function membrane is prepared using czochralski method and spray coating method:The sheet glass cleaned is immersed in silica is solid to be received In rice ball sol solutions, (time being generally immersed in is 30 seconds or so), lifting out glass substrate, (speed of lifting is 100 millis m/min The mm/min of clock~200), it spontaneously dries in air (generally the dry time is 2 minutes or so).Repeat this step 3 time; Followed by spray coating method by the silicon dioxide hollow nanosphere colloidal sol that step 2) obtains and the silica nanometer that step 4) obtains The solution that piece solution obtains, which is sprayed onto, have been obtained on coating.Then it is small obtained coating to be placed on 550 DEG C of calcinings 3 in Muffle furnace When.Coating is finally subjected to hydrophobization modification using Simplified chemical vapor deposition method.
The glass substrate cleaned up, the method for cleaning can be carries out ultrasonic washing (generally by glass substrate The time of ultrasound washing is 10~30 minutes), then inert gas (such as nitrogen) is used to dry up, then cleaned by oxygen plasma (time of the oxygen gas plasma cleaning is generally 5~10 minutes, and the voltage of cleaning is 600V or so, the stream of oxygen Amount is 800~1000mL/min).
It is 150 mm/mins that Fig. 3, which is pull rate, and tetraethoxysilane volume ratio is 1 in solution:20, concentrated hydrochloric acid volume Than being 1:The scanning electron microscope (SEM) photograph of the glass substrate of laminated film prepared by 150.
Fig. 4 is coated with the glass substrate of laminated film and the integrating sphere of blank glass substrate through spectrogram prepared by being.
Fig. 5 is that pull rate is 150 mm/mins, the water contact angle (a) and second of the glass substrate of prepared laminated film The digital pictures of glycol contact angle (b).The contact angle (WCA) of THIN COMPOSITE film water is 173.2 degree, the contact angle (OCA) of ethylene glycol It it is 150.7 degree, film has the performance of super-amphiphobic.
Embodiment 2
Pencil scratch test is carried out to the laminated film prepared by embodiment 1.Fig. 6 is that tetraethoxysilane volume ratio is 1/ 20 laminated film is being subjected to 2H, 3H, 4H, the low power number (a) after the test of 5H Pencil scratch and the scanning electron microscope under high magnification numbe (b) Figure.By observation it can be found that after Pencil scratch, film is not damaged, only particle therein deformation, It is possible thereby to illustrate that film has good adhesion property.
Embodiment 3
Tape adhesion test (standard is ASTM D3359-93) is carried out to the laminated film prepared by embodiment 1.Fig. 7 For the scanning electron microscope (SEM) photograph under the low power number (a) of test end rear film and high magnification numbe (b).It can be seen that by testing rear film There is no any damage in cut both sides, 5A test grades can be reached, film adhesion force is very strong.
Embodiment 4
Viscose glue test is carried out to the laminated film prepared by embodiment 1, is pasted using 3M adhesive tapes.Fig. 8 is prepared Film is being subjected to 1 time (a), 10 times (b), 20 times (c), and the contact angle number of the water after 30 times (d) and 40 (e) viscose glue tests shines Piece, it can be found that film still has super-hydrophobic performance.Thus prove that film has good adhesion strength and mechanical performance.
Embodiment 5
Sand surfing test is carried out to the laminated film prepared by embodiment 1.The sea sand for being 100~300 microns by 40 gram particle diameters It is placed on apart from 1 meter of eminence of film, sand is impacted in two minutes on film.Fig. 9 is that prepared film is being subjected to rushing The contact angle of (a) and rear (b) variation before sand test.It can be found that be 157 degree by the contact angle of the water of sand surfing test rear film, Still there is super-hydrophobic performance.Thus prove that film has good mechanical performance.
Embodiment 6
Test of dripping is carried out to the silica laminated film prepared by embodiment 1.It drips in test, by 100 milliliters of water 60 centimetres of eminences of scrapping off film are placed in, are impacted on film with fast speed.All tests are dripped off with water in two minutes.Figure 10 The contact angle of (a) and rear (b) variation before the test that is subjected to dripping for prepared film.It can be found that thin after test of dripping The contact angle of the water of film is 160 degree, still has super-hydrophobic performance.Thus prove that film has good mechanical performance.
Embodiment 7
Outdoor test is carried out to the silica laminated film prepared by embodiment 1.Figure 11 is that prepared film is passing through Before tested person (a), through tested person one week (b), two weeks (c), one month (d), two month (e) and four months (f) outdoor test The contact angle of water afterwards, respectively 174 degree, 167 degree, 166 degree, 164 degree, 163 degree and 163 degree, be still super-hydrophobic coat.Explanation Coating has preferable application prospect outdoors.
Embodiment 8
1) silica solid nanospheres colloidal sol is prepared:
4 milliliters of ammonium hydroxide is placed in 50 milliliters of ethanol solutions, 2 milliliters of four ethoxies are added to after 50 degree in heating water bath Base silane keeps isothermal reaction 6 hours.The grain size of prepared silica solid nanospheres is 20~50 nanometers.
2) silicon dioxide hollow nanosphere colloidal sol is prepared:
The method for preparing silicon dioxide hollow nanosphere colloidal sol is:0.3 gram of polyacrylic acid is dissolved in 3 milliliters of ammonium hydroxide, Ultrasonic disperse 5 minutes;Then it is added dropwise in 50 milliliters of absolute ethyl alcohols, stirring obtains mixed liquor in 10 minutes;By the four of 1 milliliter Ethoxysilane is added drop-wise to 20 microlitres of speed per minute in mixed liquor;After completion of dropwise addition, acquired solution is stirred at room temperature 5 Hour, obtain silicon dioxide hollow nanosphere colloidal sol.
3) silica nanometer piece is prepared:
The method for preparing silica nanometer piece is:0.2 gram of cetyl trimethylammonium bromide is dissolved in 50 milliliters of water, In the mixed solution of 0.6 milliliter of ammonium hydroxide and 10 milliliters of ether, stirring after ten minutes, rapidly joins 1 milliliter of tetraethoxysilane, room After temperature stirring 2 hours, white precipitate is obtained;Through detaching, washing, dry, white precipitate is calcined 4 hours under 500 degree, you can system Obtain silica nanometer piece.
4) silica nanometer piece solution is prepared:
Nanometer sheet obtained by step 3) is scattered in ethyl alcohol, a concentration of 0.5g/L then will be with silica nanometer piece Total solution volume ratio is 0~1:10 tetraethoxysilane (99+%) and 0~1:75 concentrated hydrochloric acid (36~38wt%), ultrasound Solution 5 minutes.
5) the functional laminated film with super-amphiphobic automatically cleaning and anti-reflection performance of processing machinery:
Multi-function membrane is prepared using czochralski method and spray coating method:The sheet glass cleaned is immersed in silica is solid to be received In rice ball sol solutions, (time being generally immersed in is 30 seconds or so), lifting out glass substrate, (speed of lifting is 100 millis m/min The mm/min of clock~200), it spontaneously dries in air (generally the dry time is 2 minutes or so).Repeat this step 2 time; Followed by spray coating method by the silicon dioxide hollow nanosphere colloidal sol that step 2) obtains and the silica nanometer that step 4) obtains The solution that piece solution obtains, which is sprayed onto, have been obtained on coating.Then obtained coating is placed on 500 calcining 2 hours in Muffle furnace. Coating is finally subjected to hydrophobization modification using Simplified chemical vapor deposition method.
The glass substrate cleaned up, the method for cleaning can be carries out ultrasonic washing (generally by glass substrate The time of ultrasound washing is 10~30 minutes), then inert gas (such as nitrogen) is used to dry up, then cleaned by oxygen plasma (time of the oxygen gas plasma cleaning is generally 5~10 minutes, and the voltage of cleaning is 600V or so, the stream of oxygen Amount is 800~1000mL/min).
The various performance test effects of gained laminated film of the invention are similar to Example 1.
Embodiment 9
1) silica solid nanospheres colloidal sol is prepared:
6 milliliters of ammonium hydroxide is placed in 150 milliliters of ethanol solutions, 4 milliliters of four ethoxies are added to after 70 degree in heating water bath Base silane keeps isothermal reaction 18 hours.The grain size of prepared silica solid nanospheres is 20~50 nanometers.
2) silicon dioxide hollow nanosphere colloidal sol is prepared:
The method for preparing silicon dioxide hollow nanosphere colloidal sol is:0.9 gram of polyacrylic acid is dissolved in 6 milliliters of ammonium hydroxide, Ultrasonic disperse 20 minutes;Then it is added dropwise in 150 milliliters of absolute ethyl alcohols, stirring obtains mixed liquor in 50 minutes;By 4 milliliters Tetraethoxysilane is added drop-wise to 70 microlitres of speed per minute in mixed liquor;After completion of dropwise addition, acquired solution is stirred at room temperature It mixes 15 hours, obtains silicon dioxide hollow nanosphere colloidal sol.
3) silica nanometer piece is prepared:
The method for preparing silica nanometer piece is:0.8 gram of cetyl trimethylammonium bromide is dissolved in 100 milliliters of water, 1 In the mixed solution of milliliter ammonium hydroxide and 30 milliliters of ether, after stirring 50 minutes, 5 milliliters of tetraethoxysilanes, room temperature are rapidly joined After stirring 6 hours, white precipitate is obtained;Through detaching, washing, dry, white precipitate is calcined 6 hours under 600 degree, you can is made Silica nanometer piece.
4) silica nanometer piece solution is prepared:
Nanometer sheet obtained by step 3) is scattered in ethyl alcohol, a concentration of 1.5g/L then will be with silica nanometer piece Total solution volume ratio is 0~1:10 tetraethoxysilane (99+%) and 0~1:75 concentrated hydrochloric acid (36~38wt%), ultrasound Solution 15 minutes.
5) the functional laminated film with super-amphiphobic automatically cleaning and anti-reflection performance of processing machinery:
Multi-function membrane is prepared using czochralski method and spray coating method:The sheet glass cleaned is immersed in silica is solid to be received In rice ball sol solutions, (time being generally immersed in is 30 seconds or so), lifting out glass substrate, (speed of lifting is 100 millis m/min The mm/min of clock~200), it spontaneously dries in air (generally the dry time is 2 minutes or so).Repeat this step 4 time; Followed by spray coating method by the silicon dioxide hollow nanosphere colloidal sol that step 2) obtains and the silica nanometer that step 4) obtains The solution that piece solution obtains, which is sprayed onto, have been obtained on coating.Then obtained coating is placed on 600 calcining 4 hours in Muffle furnace. Coating is finally subjected to hydrophobization modification using Simplified chemical vapor deposition method.
The glass substrate cleaned up, the method for cleaning can be carries out ultrasonic washing (generally by glass substrate The time of ultrasound washing is 10~30 minutes), then inert gas (such as nitrogen) is used to dry up, then cleaned by oxygen plasma (time of the oxygen gas plasma cleaning is generally 5~10 minutes, and the voltage of cleaning is 600V or so, the stream of oxygen Amount is 800~1000mL/min).
The various performance test effects of gained laminated film of the invention are similar to Example 1.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair Row of the obvious changes or variations that bright technical solution is extended out still in protection scope of the present invention.

Claims (10)

1. a kind of preparation method of the laminated film with super-amphiphobic automatically cleaning and anti-reflection performance, it is characterised in that:It is described The silicon dioxide hollow that laminated film includes silica solid nanospheres layer, is laid on silica solid nanospheres layer is received Rice layers of balls and the silica nanometer lamella being laid in silicon dioxide hollow nanometer layers of balls;The solid nanometer of silica The grain size of ball is 20~50 nanometers;The grain size of the silicon dioxide hollow nanosphere is 40~100 nanometers;The laminated film Thickness is 0.5~1.5 micron;The surface modification of the laminated film has silicon fluoride group;
The preparation of the laminated film includes the following steps:
1)Prepare silica solid nanospheres colloidal sol;
2)Prepare silicon dioxide hollow nanosphere colloidal sol;
3)Prepare silica nanometer piece;
4)By step 3)The silica nanometer piece of gained is scattered in ethyl alcohol, and tetraethoxysilane and concentrated hydrochloric acid is then added, Ultrasound is carried out, silica nanometer piece solution is obtained;
5)The glass substrate cleaned is immersed in step 1)In obtained silica solid nanospheres colloidal sol, glass is lifted out Substrate spontaneously dries in air, this step of repetition is multiple, obtains silica solid nanospheres coating;Followed by spraying Method is by step 2)Obtained silicon dioxide hollow nanosphere colloidal sol and step 4)Obtained silica nanometer piece solution sprays successively It is coated onto silica solid nanospheres coating surface, obtains composite coating;Then obtained composite coating is placed on Muffle furnace Middle calcining;Finally utilize Simplified chemical vapor deposition method to composite coating surface modification silicon fluoride group, you can to obtain final Product has super-amphiphobic automatically cleaning and the laminated film of anti-reflection performance.
2. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, it is characterised in that:Step 1)In, it is real using stober legal systems prepared silicon dioxide using tetraethoxysilane and ammonium hydroxide as raw material Heart nanosphere colloidal sol.
3. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 2)In, the method for preparing silicon dioxide hollow nanosphere colloidal sol is:By 0.3 ~ 0.9 gram of polyacrylic acid It is dissolved in 3~6 milliliters of ammonium hydroxide, ultrasonic disperse 5~20 minutes;Then it is added dropwise in 50~150 milliliters of absolute ethyl alcohols, stirs It mixes 10~50 minutes and obtains mixed liquor;1 ~ 4 milliliter of tetraethoxysilane is added drop-wise to 20~70 microlitres of speed per minute In mixed liquor;After completion of dropwise addition, acquired solution is stirred at room temperature 5~15 hours, obtains silicon dioxide hollow nanosphere colloidal sol.
4. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 3)In, the method for preparing silica nanometer piece is:By 0.2~0.8 gram of cetyl trimethyl Ammonium bromide is dissolved in 50~100 milliliters of water, in the mixed solution of 0.6~1 milliliter of ammonium hydroxide and 10~30 milliliters of ether, stirring 10~50 After minute, rapidly joins 1~5 milliliter of tetraethoxysilane and obtain white precipitate after being stirred at room temperature 2~6 hours;Through detaching, washing It washs, dry, white precipitate is calcined 4~6 hours under 500~600 degrees Celsius, you can silica nanometer piece is made.
5. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 4)In, it is scattered in a concentration of 0.5~1.5 grams per liter of the silica nanometer piece in ethyl alcohol;It is described The addition of tetraethoxysilane and the ratio of silica nanometer piece overall solution volume are 0 ~ 1:10;The addition of the concentrated hydrochloric acid And the ratio of silica nanometer piece overall solution volume is 0 ~ 1:75;The time of the ultrasound is 5~15 minutes.
6. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 5)In, the glass substrate cleaned, cleaning method is that glass substrate is first carried out ultrasound Washing 10 ~ 30 minutes, is then dried up with inert gas, then is cleaned 5 ~ 10 minutes by oxygen plasma, and cleaning voltage is 600 The flow of volt, oxygen is 800 ~ 1000 ml/mins.
7. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 5)In, the time that glass substrate immerses in silica solid nanospheres colloidal sol is 10~50 seconds; The speed of the lifting is 100 ~ 200 mm/mins;The time that the glass substrate lifted out spontaneously dries in air is 1~3 Minute.
8. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 7 Method, which is characterized in that step 5)In, it repeats to lift drying steps 3 times.
9. a kind of preparation side of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 5)In, the composite coating is calcined 2~4 hours in 500~600 degrees Celsius of Muffle furnace.
10. a kind of preparation of laminated film with super-amphiphobic automatically cleaning and anti-reflection performance according to claim 1 Method, which is characterized in that step 5)In, the method for the Simplified chemical vapor deposition is that the composite coating after calcining is placed in appearance In device, 30 ~ 70 microlitres of perfluoro capryl trichlorosilane is added dropwise in container bottom, sealing heats 2 ~ 6 under 100 ~ 150 degrees Celsius A hour;Then container is opened, 1 ~ 3 hour is heated under 100 ~ 200 degrees Celsius.
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