CN106082692A - Self-cleaning surface structure of Nanometer dustproof and preparation method thereof - Google Patents

Self-cleaning surface structure of Nanometer dustproof and preparation method thereof Download PDF

Info

Publication number
CN106082692A
CN106082692A CN201610425153.XA CN201610425153A CN106082692A CN 106082692 A CN106082692 A CN 106082692A CN 201610425153 A CN201610425153 A CN 201610425153A CN 106082692 A CN106082692 A CN 106082692A
Authority
CN
China
Prior art keywords
self
dust
nanometer
proof
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610425153.XA
Other languages
Chinese (zh)
Inventor
杨得全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shang Meng Technology Wuxi Co Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610425153.XA priority Critical patent/CN106082692A/en
Publication of CN106082692A publication Critical patent/CN106082692A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • C03C17/30Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00Surface treatment of glass, not in the form of fibres or filaments, by etching
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/06Surface treatment of glass, not in the form of fibres or filaments, by coating with metals
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23Oxides
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/22Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23Oxides
    • C03C17/245Oxides by deposition from the vapour phase

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

The invention discloses the self-cleaning surface structure of Nanometer dustproof, be the design structure utilizing surface topography in nanometer or submicron-scale, produce and produce nanostructured porous layer, reach: dust-proof, anti-reflection, self-cleaning purpose.Utilize nano-sized hydrophobic or hydrophilic particle so that it is become colloid emulsion, it is possible to compare and be uniformly dispersed in glass surface, constitute more uniform nanostructured.Masterplate method photoetching or energy particle bundle (photon beam, electron beam or ion beam) etching can also be utilized to construct the cutting-edge structure surface of nanoscale, the surface being constructed such that has good surface tip so that the contact area of the big granule and surface that are deposited on surface is obviously reduced.The reduction of contact area, it is possible to reduce the active force of contactant and surface, reach the purpose of dust protection.Especially because sand and dust etc. are in the deposition on its surface, cause the decline of glass surface light transmittance, and then cause the reduction of solar energy power generating plate generating capacity.

Description

Self-cleaning surface structure of Nanometer dustproof and preparation method thereof
Technical field
The invention belongs to the dust-proof and self-cleaning technical field of glass surface, more particularly to the self-cleaning surface structure of Nanometer dustproof and Preparation method.
Background technology
Surface is dust-proof and self-cleaning is building, cladding glass, automobile and solar energy photovoltaic glass and optical lens and electronics The applications such as display very one of concern.It is presently mainly to be processed by photocatalyst and surface hydrophobicity and is derived from Clean purpose (lotus leaf effect).For photovoltaic glass, most of water short of rain or area without rainwater, a week The generating capacity loss of uncleanly PV glass panel can reach 10%, and the dust of month pollutes the generating capacity caused Loss reaches 20%.Therefore, photovoltaic glass dust-proof and self-cleaning be in the generating operation of photovoltaic solar later stage the most concern it One.
The present invention is mainly photovoltaic solar power generation plate and the dust-proof self-cleaning offer technology of cladding glass and method for designing.Also May be used for the dust-proof self-cleaning of photovoltaic heat energy transfer surface.
Chinese patent CN 201020547731(utility model) report and a kind of surpass in solar energy photovoltaic glass surface-coated Hydrophilic silicas and the coating of interpolation nano-titanium oxide.The photic decomposition (photocatalysis) mainly utilizing titanium oxide reaches to decompose absorption In glass surface Organic substance.Document [Nakajima, Akira, Kazuhito Hashimoto, Toshiya Watanabe, Kennichi Takai, Goro Yamauchi, and Akira Fujishima. "Transparent superhydrophobic thin films with self-cleaning properties." Langmuir 16, no. 17 (2000): 7044-7047] function utilizing the photocatalysis of nano-titanium oxide to cause clean surfaces is reported.Chinese patent CN103617847A then reports one and utilizes evaporating deposition technique by glass fibre element, silicon element polymer and fluorine element polymer peace Dress and glass insulation sub-surface, have good insulating properties, simultaneously at wind and rain weather, it is possible to there is certain self-cleaning ability, rises To dustproof effect.The dust-proof and self-cleaning of cladding glass may all suffer from same problem.Vacuum moulding machine TiO2Though membrane process has one Fixed effect, but cost is the highest, is difficult to use.
Glass is self-cleaning at present, including being used in photovoltaic and the multiplex vacuum of cladding glass or sol-gal process deposition one Layer titanium deoxid film, utilizes the organic adsorption on its light-catalysed action breaks surface, utilizes its hydrophilicity to reach self-cleaning Purpose.Additionally, also utilize water-repelling agent (such as perfluor silane or 16 alkyl 3 methyl TMOSs etc.) modification of surfaces, pass through water Drip the purpose that the effect that can differ from surface contact properties reaches self-cleaning.
For there being the region of substantial amounts of rainwater, or by washing with water, these surfaces truly have good self-cleaning action, but For small rain droplets, self-cleaning action is the most weak, or surface adsorption thing can be pooled to local, it appears dirtier.And these process base Originally there is no dust-proof effect.
It is reported, NORTHWEST CHINA most area and Middle East thereof, although solar radiation is extremely strong, but hydropenia, dust storm Greatly, the deposition of solar energy photovoltaic panel glass surface dust, cause solar panels power generation loss to be up to 10-50%.Cause greatly Energy waste.To this end, dust-proof and self-cleaning effect is extremely important.It addition, photovoltaic glass surface causes greatly due to accumulated snow, frosting etc. The loss of the generated energy of amount.
Nanometer microlithography includes that nano imprint lithography, ion beam etching are applied primarily to electron trade.
Ion beam etching reaches to etch the technology of purpose with ion beam for etch tool, and its resolution is limited to particle and enters Substrate and ion energy exhaust the path domain of process.Ion beam minimum diameter about 10nm, the structure of ion beam etching is minimum May will not be less than 10nm.The beam spot of focused-ion-beam lithography is up to below 100nm at present, and minimum reaches 10nm, it is thus achieved that The processing result of little live width 12nm.Comparing electronics and solid to interact, ion scattering effect in solids is less, and can be with Direct write speed carries out the etching less than 50nm faster, so focused-ion-beam lithography is a kind of Perfected process of nanometer processing. In addition another advantage of focused ion beam technology be under the control of the computer without mask inject, even Nonvisualization etching, directly Manufacture various nanodevice structural.
Glass material has good micro Process performance, utilizes the Fluohydric acid. corrosiveness to glass, to glass accurate, complicated Glass component surface carries out the processing such as chemical etching, chemical polishing, and the most not only precision is high, also can avoid producing manufacturing deficiency, with Time, processing is not limited by device surface configuration, working (machining) efficiency is higher.
Along with Nano-technology Development, people can make chemically to prepare porous nano coating, nanoparticle paint, energy Control its surface microstructure relatively accurately, produce porous nano super hydrophobic coating and the super hydrophilic coating of porous nano.
Summary of the invention
It is an object of the invention to as solving drought area, dust storm is big, sinking of solar energy photovoltaic panel glass surface dust Long-pending, the problem causing solar panels power generation loss, and a kind of self-cleaning surface structure of Nanometer dustproof and processing method thereof are provided.
The self-cleaning surface structure of Nanometer dustproof, its top layer is porous nanometer structure layer, and thickness is less than 200 nanometers, described hole Granule for arranging by spacing d is constituted, and dust particle diameter is set to D, and meets following condition:
Or substrate is s with the contact area of granule:
Here p is pi constant, can define effective contact surface and be, apparent contact area is, it has anti- The primary condition of dirt is:
Described spacing d is 5-100 nanometer;
Described granule is spheroid, column, bullet or latticed;
The thickness of the self-cleaning surface structure of described Nanometer dustproof is less than 100 nanometers;
The self-cleaning surface structure of described Nanometer dustproof is super hydrophobic surface, and its static contact angle is more than 150 degree, and roll angle is less than 10 Degree or ultra-hydrophilic surface, its static contact angle is less than 10 degree;
The self-cleaning surface structure of described Nanometer dustproof, the coefficient of friction in the case of the existence ignoring surface liquid, between them For m, the then dust particle of landingiIt must is fulfilled for condition:
Wherein, m is the quality of particle, and g is acceleration of gravity.Because the effect of granule and contact surface is direct with effective contact area Relevant, or
Here it is proportionality coefficient, so under given inclination angle, minimum dust-proof contact surface:
Due to generally, coefficient of friction m is less than 1, so minimum effectively contact area is proportional to for given material The weight (quality) of grain, inclination angle.
Dust-proof efficiency h can be write as:
Wherein, N0It is the total number of deposited granule,It it is the number of particles resting on surface.
Preparation method based on the organic silicon nano porous dust-proof super-hydrophobic coat self-cleaning surface structure of Nanometer dustproof, its bag Include:
(A) colloid of nanoporous coating is prepared: water intaking 4-6 part, ammonia 5-7 part, oxalic acid solution 8-12 part of 1 mole, ethanol Or methanol 80-120 part stirs mixing, and it is heated to 40-70 degree Celsius, adds 6-10 part methyl trimethoxy base epoxide silicon Alkane and tetraethyl orthosilicate 1-3 part, stir, and keep 40-70 degree Celsius stand 3-5 days, after naturally cool to room temperature;
(B) dispersion colloid: take out above-mentioned product 1 part, adds 3-6 part methanol, ethanol or isopropanol, and ultrasonic disperser disperses 10-40 minute;
(C) application: by scattered nanometer colloid, spraying or dip-coating after glass surface, natural drying in 100-300 degree temperature Degree lower solidification 0.2-2 hour, takes out after cooling.
The preparation method of the nanoporous dust-proof super-hydrophobic coat self-cleaning surface structure of Nanometer dustproof with resin as bonding agent, It includes:
(A) take 30 parts of ethanol, methanol or isopropanol, add 20 parts of butyl acetates, after stirring, be separately added into 6-10 part methyl Trimethyl TMOS and 3-5 part tetraethyl orthosilicate, add ammonia 2-3 part of 1 mol/L, stir and keep 3-5 hour, Add 2-7 part fluorocarbon resin and ammonia 10-15 part stirs, standing and reacting 2-7 days under 50 degree Celsius, obtain faint yellow Gel;
(B) remove gel, add the ethanol dilution of 5-11 times, obtain super-hydrophobic colloid;
(C) application: can be sprayed by colloid, dip-coating or czochralski method form thin film at glass surface;At room temperature solidification 48 hours or Person, 100-250 degree internal heating curing 30 minutes, obtains the porous super hydrophobic dust-proof coating self-cleaning surface structure of Nanometer dustproof.
The preparation method of the dust-proof super-hydrophilic coating self-cleaning surface structure of Nanometer dustproof based on nanoparticle, it includes:
(A) by 5-20 nano-titanium oxide 1 part and 5-20 nano tin dioxide 2 parts, ultrasonic disperser is utilized, according to 0.2-0.8wt% Concentration be dispersed in methanol or ethanol, formed colloid solution;
(B) utilize brush or dip-coating, or spraying method by nanometer colloid even application in its surface.
(C) drying at room temperature 1-2 processes 10 to 30 minutes under individual hour or 100 degrees Celsius.
The preparation method of the self-cleaning surface structure of columnar nanometer porous surface structure Nanometer dustproof, it includes:
(1) select containing soda-lime glass;
(2) surface organic solvent cleans;
(3) on its surface with the SiO2 layer of meteorological chemical reaction method one layer of 0.5-2 micron of deposition;
(4) then pass to CF4 gas, under the operating pressure of 1-3x10-4 torr, add 500 to the back bias voltage of 600 volts to substrate, enter Row vacuum glow discharge, after reactive ion etching 10-60 minute, surface forms nanostructured;
(5) surface etched hydrolyzes in water vapour removes the fluoride that surface is formed, and obtains super hydrophilic nanometer column Structure, or modify by low-surface energy substance, it is thus achieved that super hydrophobic surface.
The preparation method of the dust-proof self-cleaning surface structure of the dust-proof self-cleaning surface of cone-shaped nano structure glass, it includes:
(1) select suitable glass and clean clean;
(2) vacuum evaporation deposition Ni, Cr or Cu metal 40-70 nano thickness;
(3) 200-400 degree Celsius of sample of heating 10-30 minute in a vacuum;
(4) CF4 plasma etching is utilized: at 1-5x10-2Under the vacuum of torr, under the back bias voltage of 400-500 volt, discharge 5-40 Minute;
(5) acid (nitric acid, sulphuric acid, hydrochloric acid etc.) is utilized to erode the metal fluoride on surface;
(6) obtain taper ultra-hydrophilic surface, or its surface is carried out low-surface energy substance modify obtain super hydrophobic surface.
The preparation method of the super hydrophilic dust-proof self-cleaning surface structure of nanometer paper-like porous surface on glass, it includes:
(1) cleaning surface, removes oil stain and spot;
(2) glass being positioned over alkaline aqueous solution, the concentration of its alkali liquor controls in 0.5-4.0 mol/L, and temperature is taken the photograph at 70-110 Family name's degree, the time is standing in 0.5-4 hour;
(3) naturally cool to room temperature, take out glass, wash with water;
(4) it is dried surface.
The invention provides the design structure utilizing surface topography in nanometer or submicron-scale, produce and produce nanometer Structural porous layer, reaches: 1) dust-proof;2) anti-reflection (antireflective);3) self-cleaning purpose.Such as utilize nano-sized hydrophobic or hydrophilic Particle so that it is become colloid emulsion, it is possible to compare and be uniformly dispersed in glass surface, constitutes more uniform nanostructured. and permissible It is spraying, brushes or be immersed in.Masterplate method photoetching or energy particle bundle (photon beam, electron beam or ion can also be utilized Bundle) etch the cutting-edge structure surface constructing nanoscale, the surface being constructed such that has good surface tip so that deposition It is obviously reduced with the contact area on surface at the big granule on surface.The reduction of contact area, it is possible to reduce contactant and surface Active force (usually van der Waals interaction power), reach the purpose of dust protection.Especially because sand and dust etc. are on its surface Deposition, causes the decline of glass surface light transmittance, and then causes the reduction of solar energy power generating plate generating capacity.
Based on considerations above, applicant devises at least four face coat as shown in Figure 1,2,3, 4 or modification Structure;Wherein the ratio of void pitch and granule (dust) size is extremely important: as long as the particle diameter of granule is more much larger than spacing, Just can be effectively accomplished dust-proof purpose.As fruit granule has certain size distribution, it is necessary for considering to reduce to go to space as far as possible Spacing.And prevent granule embedding between space.If the average diameter of fruit granule is D (or mean size), substrate surface The spacing of granule is d (or substrate is column, intercolumniation), and the most dust-proof primary condition is:
Or substrate is s with the contact area of granule:
Here p is pi constant (3.14156 ...). can define effective contact surface is, apparent contact area is It has dust-proof primary condition:
Wherein, the size of ratio a determines the ratio of effective contact area and apparent contact area.If plus contact surface with The contact of grain is smooth, and the active force between contact is van der Waals interaction power (mechanics analysis is shown in Fig. 5), is ignoring table The existence (now without capillary force) of face liquid, the coefficient of friction between them is m, then the particle of landingiIt must is fulfilled for bar Part:
Wherein, m is the quality of particle, and g is acceleration of gravity.Because the effect of granule and contact surface is direct with effective contact area Relevant, or
Here it is proportionality coefficient, so under given inclination angle, minimum dust-proof contact surface
Due to generally, coefficient of friction m is less than 1, so minimum effectively contact area is proportional to for given material The weight (quality) of grain, inclination angle.
Dust-proof efficiency h can be write as:
Wherein, N0It is the total number of deposited granule,It it is the number of particles resting on surface.It will be apparent that dust-proof efficiency h Relevant with the inclination angle (q) of effective contact area and plate face.Under given inclination angle (q), reduce effective contact area and connect with apparent The ratio that contacting surface is amassed is maximally effective dust-control method.This purpose can be reached by structured surface structure.
Under given inclination angle, dust-proof maximum effectively contact area SmDetermine landing or deposit in its surface The number of dust.Obviously, the shapes and sizes of dust particle directly determine dust-proof effect.If antifouling (liquid or Semi liquid state shape), then require that surface is super-hydrophobic best.Because hydrophilic meeting causes the appearance of capillary force, a resistance can be increased The active force of sliding stop, causes dust-proof inefficacy or weakens.
If it is considered that the optical transmittance of its glass surface, then to consider antireflective simultaneously.Its antireflecting condition is: thin The thickness of layerWherein,n l It it is the effective refractive index (air is 1.0, and glass is 1.5) of structure sheaf.It is exactly it in simple terms Within 100 nanometers of THICKNESS CONTROL.The effective refractive index of its porous layer is progressively transitioned into 1.5. so slowly by the 1.0 of air Optimal antireflecting purpose can be reached.For Zong He, Fig. 4 is optimum selection, and it is comprehensive that other structure to see that its concrete emphasis is come Consider, but the production cost reaching Fig. 4 is also the highest.
Wherein Fig. 1 can be by by dispersed for nanoparticle (single dispersing), and Fig. 2 is column or bar-shaped, permissible Photoetching or oriented growth (seed) obtain, and Fig. 3 is thin porous layer, can use accomplished in many ways, including resin-nanoparticle Monodisperse colloid is immersed in or spin coating or brushing etc., it is also possible to prepare with phase detachment technique scale;Fig. 4 is taper, permissible Obtain with photoetching or ion beam etching.
Fig. 6-10 respectively monodisperse colloid granule acquisition nano coating, photoetching column-shaped porous coating, nano-particle are many Hole coating, taper (ion beam etching) loose structure and paper-like nano-porous structure.These nanostructureds all can effectively subtract Little reflection reaches 1-5%,
If reaching self-cleaning usefulness, its surface must be that super-hydrophobic (static contact angle is more than 150 degree, and roll angle is less than 10 degree. Note: after roll angle is more than 10 degree, its self-cleaning effect can reduce) or super hydrophilic (static contact angle is less than 10 degree).
Accompanying drawing explanation
Fig. 1 graininess Nanometer dustproof coating surface structure schematic diagram;
Fig. 2 columnar nanometer dust-proof surface texture schematic diagram;
Fig. 3 paper-like Nanometer dustproof surface texture schematic diagram;
Fig. 4 taper Nanometer dustproof surface texture schematic diagram;
Fig. 5 nano-porous surface and dust effect schematic diagram;
Fig. 6 nano-porous surface electron micrograph, the upper left corner is water contact photo (5 microlitre);
The electromicroscopic photograph on Fig. 7 columnar nano-structure surface;
Fig. 8 taper Nanometer dustproof surface electromicroscopic photograph;
Fig. 9 paper-like nano-porous surface electromicroscopic photograph;
Figure 10 tests the electromicroscopic photograph of sand and dust used;
The laser particle size analysis result figure of Figure 11 sandy environment;
Figure 12 Nanometer dustproof self-cleaning surface structure light transmittance figure;
The schematic diagram of fabrication technology of a kind of dust-proof super-hydrophobic coating material based on organosilicon of Figure 13;
The micro structure electromicroscopic photograph of the super-hydrophobic dust-proof self-cleaning coat of Figure 14 organic silicon nano;
The schematic diagram of fabrication technology of a kind of Nanometer dustproof super-hydrophilic coating material based on fluorocarbon resin of Figure 15;
The Figure 16 super-hydrophobic dust-proof self-cleaning coat electromicroscopic photograph with fluorocarbon resin as bonding agent;
The manufacture method of the super hydrophilic dust-proof nano-coating material of Figure 17;
The direct bonding nanoparticle of Figure 18 forms the nanometer particle film with dust-proof effect at glass surface, and surface is super hydrophilic State (Static water contact angles is less than 3 degree, sees that the water droplet in the figure upper left corner is entirely flat).
Detailed description of the invention
Embodiment 1: nanoporous coating and technique thereof
Referring to accompanying drawing 1-6,13,14,15, the self-cleaning top layer of Nanometer dustproof, its surface has micropore, and micropore size is 5-50nm; Hole wall is 10-50nm;
The thickness on this top layer is 100-200nm;Total cross section of porousFor the average diameter in space, apparent Space number under area) and apparent cross section (=) ratio between 0.05-0.9.Concrete preparation method:
(1) a kind of based on the dust-proof super-hydrophobic coat of organic silicon nano porous
(A) colloid of nanoporous coating is prepared: water intaking 4-6 part, ammonia 5-7 part (bright limited public affairs of chemical reagent as red in Jiangsu Department), oxalic acid solution 8-12 part of 1 mole, ethanol (or methanol) 80-120 part stirs mixing, and is heated to 40-70 and takes the photograph Family name's degree, then by 6-10 part methyl trimethoxy silane (such as Nanjing Luo En silicon materials company limited) and tetraethyl orthosilicate 1-3 part Add above-mentioned mixed liquor, stir, and keep under 40-70 degree celsius temperature stand 3-5 days, after naturally cool to room temperature.Tool Body construction technique is as shown in Figure 13.
(B) dispersion colloid: take out above-mentioned product 1 part, adds 3-6 part methanol (ethanol or isopropanol), uses ultrasonic wavelength-division Dissipate device (such as Shanghai Sheng Xi ultrasonic instrument company limited FS-450, power 500-1200 watt) 10-40 minute (2-3 liter).
(C) application: by scattered nanometer colloid, spraying (non-atomized) or dip-coating in its surface, after natural drying 0.2-2 hour is solidified at a temperature of 100-300 degree.Take out after cooling.(Electronic Speculum is shone to obtain micro-structure diagram as shown in figure 14 Sheet, Hitachi S4800).
(D) performance: the surface after application will be nanoporous, the super-hydrophobic dust-proof antireflective of about 100-200 nanometer thickness Coating.Specific targets are: static contact angle is more than 150 degree, and roll angle is less than 10 degree;Visible ray light (400-800 nanometer) passes through Rate increases by 0.5 to 2.0%.The concrete data of anti-dust performance are shown in Tables 1 and 2.
A kind of dust-proof super-hydrophobic coat of the nanoporous with resin as bonding agent:
(A) take 30 parts of ethanol (or methanol, or isopropanol), add 20 parts of butyl acetates, after stirring, be separately added into 6- 10 parts of methyl trimethoxy silanes (such as Nanjing Luo En silicon materials company limited) and 3-5 part tetraethyl orthosilicate, add 1 and rub You/liter ammonia 2-3 part, stir and keep 3-5 hour, be eventually adding 2-7 part fluorocarbon resin (such as: CC1=4, east, Shanghai fluorination Work company limited, or F534 Guangzhou Fu Yuangui Science and Technology Ltd.) and ammonia 10-15 part stir, at 50 degree Celsius Lower standing and reacting 2-7 days, obtains flaxen gel.Concrete synthesis technique is as shown in figure 15.
(B) remove gel, add the ethanol dilution of 5-11 times, obtain its super-hydrophobic colloid.
(C) application: colloid can be sprayed, or be immersed in, czochralski method its surface formed thin film.At room temperature solidification 48 is little Time or 100-250 degree internal heating curing 30 minutes, obtain the dust-proof coating of porous super hydrophobic.The electromicroscopic photograph of micro structure such as figure Shown in 15.
(D) dust-proof and hydrophobic performance: coating surface is to the static contact angle of water more than 150 degree, and roll angle is less than 10 degree;Can See that light transmission rate increases by 0.5 to 2.0%.The results are shown in Table shown in one of its anti-dust performance.
A kind of dust-proof super-hydrophilic coating based on nanoparticle
(A) by nano-titanium oxide (5-20 nanometer) 1 part and nano tin dioxide (5-20 nanometer) 2 parts, utilize ultrasonic disperser (on Hai Shengxi ultrasonic instrument company limited FS-450), it is dispersed in methanol or ethanol according to the concentration of 0.2-0.8wt%, forms glue Liquid solution.
(B) surface cleaning the holding that will construct are dried.
(C) utilize brush or dip-coating, or spraying method by nanometer colloid even application in its surface.
(D) drying at room temperature 1-2 processes 10 to 30 minutes under individual hour or 100 degrees Celsius.Obtain the electromicroscopic photograph of Figure 15. Explanation is to have preferable scattered nanoparticle.
(E) coating key property: water static contact angle is less than 5 degree.Visible light transmittance rate (visible ray increases by more than 0.5%).
(F) anti-dust performance: be shown in Table shown in.
Embodiment 2 columnar nanometer porous surface structure dustproof glass
The self-cleaning top layer of Nanometer dustproof, its surface has micropore, and micropore size is 5-50nm, and described micropore is column (Fig. 7) Or the gap that bullet (Fig. 8) arrangement is formed, or latticed hole (Fig. 9), the top of described column, bullet or grid is Yardstick (diameter) is 5-30nm.The height of column or taper or platy layer is 80-11 nanometer.
Described top layer is the transparent material such as glass, lucite.Surface and its dust contact surface due to these structures Amass and be obviously reduced, cause good dust-proof effect.
If the surface of these structures is modified through polymer or low-surface energy substance, such as CF3-CF2-CF2-..-R or Person CH3-CH2-..R(R is functional group siloxanes Si-O-CH3 ,-OH or silane or COOH), then its surface is the most super-hydrophobic, There is self-cleaning function.
Due to the porous of surface layer, the effective refractive index of its this layer, between 1. 2-1.3, has antireflecting function. The specific practice of this structure is:
(1) select suitably containing soda-lime glass.
(2) surface organic solvent cleaner oil stain.
(3) the SiO2 layer at its surface one layer of 0.5-2 micron of deposition (deposits, as at 1-3x10 with meteorological chemical reaction method-5 Under the vacuum of torr, it is passed through N2O and SiH4 mixed gas and (is specifically shown in: Landheer, D. et al. Formation of high-quality nitrided silicon dioxide films using electron-cyclotron resonance chemical vapor deposition with nitrous oxide and silane. J. Electrochem. Soc. 143, 1681–1684 (1996)。
(4) then pass to CF4 gas, under the operating pressure of 1-3x10-4 torr, add 500 to the negative bias of 600 volts to substrate Pressure, carries out vacuum glow discharge, and reactive ion etching 10-60 minute rear surface forms nanostructured.
(5) surface etched hydrolyzes in water vapour removes the fluoride that surface is formed, and obtains super hydrophilic nanometer Column structure, as shown in Figure 7.If modified (such as vacuum radio frequency magnetron sputtering deposition 50-200 nanometer thickness by low-surface energy substance The politef of degree), super hydrophobic surface will be obtained.
(6) characterize: Static water contact angles: 156 degree, roll angle, 4 degree, it is seen that light transmission rate is increase by 1.5%.
(7) anti-dust performance: as shown in table 1.
The preparation of the dust-proof self-cleaning surface of embodiment 3 cone-shaped nano structure glass and performance thereof
(1) select suitable glass and clean clean.
(2) vacuum evaporation deposition Ni, Cr or Cu metal 40-70 nano thickness.
(3) 200-400 degree Celsius of sample of heating 10-30 minute in a vacuum.
(4) CF4 plasma etching is utilized: at 1-5x10-2Under the vacuum of torr, under the back bias voltage of 400-500 volt, discharge 5- 40 minutes.
(5) acid (nitric acid, sulphuric acid, hydrochloric acid etc.) is utilized to erode the metal fluoride on surface.
(6) obtain taper ultra-hydrophilic surface as shown in Figure 8, if its surface is carried out low-surface energy substance modification (as The polytetrafluoroethylene film of vacuum radio frequency magnetron sputtering 20-70 nano thickness, or in the perfluor silane liquid of 1%, soak 10- 50 minutes) obtain super hydrophobic surface.The Static water contact angles on surface 155 degree, roll angle 3 degree;Visible light transmissivity increases by 1.2% (averagely).
(7) anti-dust performance, is shown in Table 1.
Super hydrophilic nanometer paper-like porous surface and anti-dust performance thereof on example 4 glass
(1) cleaning surface, removes oil stain and spot, if by atmospheric plasma processes (such as: the SF-P-of generation peak, Nanjing science and technology 60L) better.
(2) glass being positioned over alkaline aqueous solution (NaOH, NH4OH, KOH), the concentration of its alkali liquor controls at 0.5-4.0 Mol/L, temperature is at 70-110 degree Celsius, and the time stood in 0.5 to 4 hours.
(3) naturally cool to room temperature, take out glass, wash with water.
(4) it is dried (room temperature or baking) surface, obtains the porous surface of flaky nanometer structure as shown in Figure 9, wherein, The thickness of paper about 10-30 nanometer, empty size 5-70 nanometer.
(5) performance: it is average that the transmitance of the light of glass surface increases 4.0-7.0%(, two-sided corrosion);Water static contact angle: 0 degree.
(6) anti-dust performance: be shown in Table 1.
Note: the surface angle amount of dust that dust quality is initial dispenser when zero degree.The weighing precision of it chessboard is 0.01 Gram.The non-particle mean size of dust 16 microns (D50) used, the Electronic Speculum pattern photo of concrete granule is shown in Figure 10, its granular size Laser particle size analysis figure is shown in Figure 11.

Claims (12)

1. the self-cleaning surface structure of Nanometer dustproof, its top layer is porous nanometer structure layer, and thickness is less than 200 nanometers, and described hole is Constituting by the granule of spacing d arrangement, dust particle diameter is set to D, and meets following condition:
Or substrate is s with the contact area of granule:
Here (being pi constant, can define effective contact surface is, apparent contact area isIt has dust-proof Primary condition be:
(3).
The self-cleaning surface structure of Nanometer dustproof the most according to claim 1, it is characterised in that: described spacing d is that 5-100 receives Rice.
The self-cleaning surface structure of Nanometer dustproof the most according to claim 1 and 2, it is characterised in that: described granule is spherical Body, column, bullet or latticed.
The self-cleaning surface structure of Nanometer dustproof the most according to claim 3, it is characterised in that: the self-cleaning table of described Nanometer dustproof The thickness of Rotating fields is less than 100 nanometers.
The self-cleaning surface structure of Nanometer dustproof the most according to claim 4, it is characterised in that: the self-cleaning table of described Nanometer dustproof Rotating fields is super hydrophobic surface, and its static contact angle is more than 150 degree, and roll angle is less than 10 degree or ultra-hydrophilic surface, and it is static Contact angle is less than 10 degree.
The self-cleaning surface structure of Nanometer dustproof the most according to claim 1 or 5, it is characterised in that: described Nanometer dustproof is certainly Clean surface structure, in the case of the existence ignoring surface liquid, the coefficient of friction between them is m, then the dust particle of landingi It must is fulfilled for condition:
Wherein, m is the quality of particle, and g is acceleration of gravity;
Because the effect of granule and contact surface is directly related with effective contact area, or
Here it is proportionality coefficient, so under given inclination angle, minimum dust-proof contact surface:
Due to generally, coefficient of friction m is less than 1, so minimum effectively contact area is proportional to for given material The quality of grain, inclination angle;
Dust-proof efficiency h can be write as:
Wherein, N0It is the total number of deposited granule,It it is the number of particles resting on surface.
7. preparation method based on the organic silicon nano porous dust-proof super-hydrophobic coat self-cleaning surface structure of Nanometer dustproof, it includes:
(A) colloid of nanoporous coating is prepared: water intaking 4-6 part, ammonia 5-7 part, oxalic acid solution 8-12 part of 1 mole, ethanol Or methanol 80-120 part stirs mixing, and it is heated to 40-70 degree Celsius, adds 6-10 part methyl trimethoxy base epoxide silicon Alkane and tetraethyl orthosilicate 1-3 part, stir, and keep 40-70 degree Celsius stand 3-5 days, after naturally cool to room temperature;
(B) dispersion colloid: take out above-mentioned product 1 part, adds 3-6 part methanol, ethanol or isopropanol, and ultrasonic disperser disperses 10-40 minute;
(C) application: by scattered nanometer colloid, spraying or dip-coating after glass surface, natural drying in 100-300 degree temperature Degree lower solidification 0.2-2 hour, takes out after cooling.
8. the preparation method of the nanoporous dust-proof super-hydrophobic coat self-cleaning surface structure of Nanometer dustproof with resin as bonding agent, it Including:
(A) take 30 parts of ethanol, methanol or isopropanol, add 20 parts of butyl acetates, after stirring, be separately added into 6-10 part methyl Trimethyl TMOS and 3-5 part tetraethyl orthosilicate, add ammonia 2-3 part of 1 mol/L, stir and keep 3-5 hour, Add 2-7 part fluorocarbon resin and ammonia 10-15 part stirs, standing and reacting 2-7 days under 50 degree Celsius, obtain faint yellow Gel;
(B) remove gel, add the ethanol dilution of 5-11 times, obtain super-hydrophobic colloid;
(C) application: can be sprayed by colloid, dip-coating or czochralski method form thin film at glass surface;At room temperature solidification 48 hours or Person, 100-250 degree internal heating curing 30 minutes, obtains the porous super hydrophobic dust-proof coating self-cleaning surface structure of Nanometer dustproof.
9. the preparation method of the dust-proof super-hydrophilic coating self-cleaning surface structure of Nanometer dustproof based on nanoparticle, it includes:
(A) by 5-20 nano-titanium oxide 1 part and 5-20 nano tin dioxide 2 parts, ultrasonic disperser is utilized, according to 0.2-0.8wt% Concentration be dispersed in methanol or ethanol, formed colloid solution;
(B) utilize brush or dip-coating, or spraying method by nanometer colloid even application in its surface;
(C) drying at room temperature 1-2 processes 10 to 30 minutes under individual hour or 100 degrees Celsius.
10. the preparation method of the self-cleaning surface structure of columnar nanometer porous surface structure Nanometer dustproof, it includes:
(1) select containing soda-lime glass;
(2) surface organic solvent cleans;
(3) on its surface with the SiO2 layer of meteorological chemical reaction method one layer of 0.5-2 micron of deposition;
(4) then pass to CF4 gas, under the operating pressure of 1-3x10-4 torr, add 500 to the back bias voltage of 600 volts to substrate, enter Row vacuum glow discharge, after reactive ion etching 10-60 minute, surface forms nanostructured;
(5) surface etched hydrolyzes in water vapour removes the fluoride that surface is formed, and obtains super hydrophilic nanometer column Structure, or modify by low-surface energy substance, it is thus achieved that super hydrophobic surface.
The preparation method of the 11. dust-proof self-cleaning surface structures of the dust-proof self-cleaning surface of cone-shaped nano structure glass, it includes:
(1) select suitable glass and clean clean;
(2) vacuum evaporation deposition Ni, Cr or Cu metal 40-70 nano thickness;
(3) 200-400 degree Celsius of sample of heating 10-30 minute in a vacuum;
(4) CF4 plasma etching is utilized: at 1-5x10-2Under the vacuum of torr, under the back bias voltage of 400-500 volt, electric discharge 5-40 divides Clock;
(5) acid (nitric acid, sulphuric acid, hydrochloric acid etc.) is utilized to erode the metal fluoride on surface;
(6) obtain taper ultra-hydrophilic surface, or its surface is carried out low-surface energy substance modify obtain super hydrophobic surface.
The preparation method of the super hydrophilic dust-proof self-cleaning surface structure of nanometer paper-like porous surface on 12. glass, it includes:
(1) cleaning surface, removes oil stain and spot;
(2) glass being positioned over alkaline aqueous solution, the concentration of its alkali liquor controls in 0.5-4.0 mol/L, and temperature is taken the photograph at 70-110 Family name's degree, the time is standing in 0.5-4 hour;
(3) naturally cool to room temperature, take out glass, wash with water;
(4) it is dried surface.
CN201610425153.XA 2016-06-16 2016-06-16 Self-cleaning surface structure of Nanometer dustproof and preparation method thereof Pending CN106082692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610425153.XA CN106082692A (en) 2016-06-16 2016-06-16 Self-cleaning surface structure of Nanometer dustproof and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610425153.XA CN106082692A (en) 2016-06-16 2016-06-16 Self-cleaning surface structure of Nanometer dustproof and preparation method thereof

Publications (1)

Publication Number Publication Date
CN106082692A true CN106082692A (en) 2016-11-09

Family

ID=57235168

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610425153.XA Pending CN106082692A (en) 2016-06-16 2016-06-16 Self-cleaning surface structure of Nanometer dustproof and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106082692A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108947265A (en) * 2018-06-28 2018-12-07 广东南亮艺术玻璃科技股份有限公司 A kind of self-cleaning liquid of glass and glass with clean and preparation method thereof
CN109574510A (en) * 2018-12-27 2019-04-05 河南豫科玻璃技术股份有限公司 A kind of anti-dazzle (AG glass) nanoscale frosting powder particles etch process
CN110131202A (en) * 2018-08-22 2019-08-16 广东美的制冷设备有限公司 Wind wheel and air conditioner
WO2019205551A1 (en) * 2018-04-23 2019-10-31 Liu Feng Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof
CN113572417A (en) * 2021-06-24 2021-10-29 东南大学 Self-cleaning anti-icing composite surface device
CN114075042A (en) * 2021-10-28 2022-02-22 中国民用航空飞行学院 Method for constructing density-controllable bactericidal nano blade on glass surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102603051A (en) * 2011-01-20 2012-07-25 唐世茂 Method for photocatalysis of water by adopting nanometer porous titanium oxide film
CN103059617A (en) * 2013-01-05 2013-04-24 江西安源光伏玻璃有限责任公司 Preparation method for nanometer anti-reflection self-cleaning coating solution
CN104467648A (en) * 2014-12-19 2015-03-25 江苏宇昊新能源科技有限公司 Self-cleaning device of photovoltaic module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102603051A (en) * 2011-01-20 2012-07-25 唐世茂 Method for photocatalysis of water by adopting nanometer porous titanium oxide film
CN103059617A (en) * 2013-01-05 2013-04-24 江西安源光伏玻璃有限责任公司 Preparation method for nanometer anti-reflection self-cleaning coating solution
CN104467648A (en) * 2014-12-19 2015-03-25 江苏宇昊新能源科技有限公司 Self-cleaning device of photovoltaic module

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019205551A1 (en) * 2018-04-23 2019-10-31 Liu Feng Self-cleaning coating, self-cleaning fiber, self-cleaning carpet and uses thereof
CN108947265A (en) * 2018-06-28 2018-12-07 广东南亮艺术玻璃科技股份有限公司 A kind of self-cleaning liquid of glass and glass with clean and preparation method thereof
CN108947265B (en) * 2018-06-28 2021-06-01 广东南亮艺术玻璃科技股份有限公司 Glass self-cleaning liquid, self-cleaning glass and preparation method thereof
CN110131202A (en) * 2018-08-22 2019-08-16 广东美的制冷设备有限公司 Wind wheel and air conditioner
CN109574510A (en) * 2018-12-27 2019-04-05 河南豫科玻璃技术股份有限公司 A kind of anti-dazzle (AG glass) nanoscale frosting powder particles etch process
CN113572417A (en) * 2021-06-24 2021-10-29 东南大学 Self-cleaning anti-icing composite surface device
CN114075042A (en) * 2021-10-28 2022-02-22 中国民用航空飞行学院 Method for constructing density-controllable bactericidal nano blade on glass surface

Similar Documents

Publication Publication Date Title
CN106082692A (en) Self-cleaning surface structure of Nanometer dustproof and preparation method thereof
Mishra et al. Nanostructured superhydrophobic coatings for solar panel applications
Wang et al. Self-healing superhydrophobic A-SiO2/N-TiO2@ HDTMS coating with self-cleaning property
CN102464901B (en) Anti-reflection super-hydrophilic self-cleaning SiO2Antifogging coating and preparation method thereof
CN102795786B (en) super-hydrophobic self-cleaning coating and preparation method thereof
Wang et al. Anti-Reflective superhydrophobic coatings with excellent durable and Self-cleaning properties for solar cells
Ke et al. Highly transparent and robust superhydrophobic coatings fabricated via a facile sol-gel process
CN108003710B (en) A kind of super-hydrophobic visible light photocatalysis automatic cleaning coating and preparation method thereof
Wu et al. Nonfluorinated, transparent, and antireflective hydrophobic coating with self-cleaning function
CN108299869A (en) High-strength super-hydrophobic self-cleaning coating, high-strength anti-reflection super-hydrophobic self-cleaning coating and preparation methods thereof
CN109054627A (en) Automatic cleaning coating material and preparation method thereof with lasting super-hydrophobicity
CN102702806A (en) Preparation and application of self-cleaning synergistic solar paint
Qu et al. Bioinspired durable superhydrophobic materials with antiwear property fabricated from quartz sands and organosilane
CN105565678A (en) Anti-reflection super-hydrophobic self-cleaning SiO2 nano coating
Tan et al. Bulk superhydrophobility of wood via in-situ deposition of ZnO rods in wood structure
CN107128937A (en) A kind of application in graphene oxide/silicic acid copper composite powder and preparation method thereof and super-hydrophobic coat
CN110520484A (en) Coating and formulation for coating material
CN106517821A (en) Transparent super-hydrophobic coating and preparation method thereof
Syafiq et al. Study on self-cleaning performance and hydrophobicity of TiO2/silane coatings
Nomeir et al. Recent progress on transparent and self-cleaning surfaces by superhydrophobic coatings deposition to optimize the cleaning process of solar panels
CN109468874A (en) A kind of super-hydrophobic transparent conductive paper and preparation method thereof
Zhang et al. Hydrophobic and optical properties of silica antireflective coating prepared via sol-gel method
CN113462207B (en) Photocatalytic self-cleaning composite coating and preparation method thereof
Zhou et al. Fabrication of superhydrophobic PDMS/TiO2 composite coatings with corrosion resistance
Liu et al. Hydrophobic anti-reflective silica hybrid film with tunable refractive index

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20181214

Address after: Tian'an Wisdom City A1-602, 228 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province

Applicant after: Shang Meng Technology Wuxi Co., Ltd.

Address before: Room 213 402, Phase II, Vanke City Garden, Wanshun Road, Binhu District, Wuxi City, Jiangsu Province

Applicant before: Yang Dequan

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20161109