CN104672962B - A kind of inorganic matter super hydrophobic coating and application thereof - Google Patents
A kind of inorganic matter super hydrophobic coating and application thereof Download PDFInfo
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Abstract
A kind of inorganic matter super hydrophobic coating and application thereof, this coating is prepared by following methods, will inject in the reactor equipped with Nano microsphere template under Ludox condition of negative pressure, and then reactor is sealed and put in calorstat by submergence template 2h, and 60oC reacts 12h, selects intensification or water soaking to remove removing template, obtains solid block micro-nano and be combined polyhedron, treats that gained bulk micro-nano is combined polyhedron dried, is fully ground to powder；Take powder and pour in another reactor, add dispersion liquid acetone, then 25 ~ 50oAdd low-surface-energy under C silane coupler modified, react 10 ~ 15h, then make micro-nano be combined polyhedron powder account for coating quality percent concentration by volatilization to be 0.5% ~ 20%, be i.e. prepared into super hydrophobic coating.The present invention can be coated on multiple common used material surface, and preparation method for coating is succinct, and the super hydrophobic surface obtained has the stability of excellence.
Description
Technical field
The present invention relates to the technical field of hydrophobic coating material, be specifically related to preparation and the coating application of a kind of super hydrophobic coating.
Background technology
Ultra-hydrophobicity refers to that body surface is more than 150 ° to water contact angle.Self-cleaning performance that Folium Nelumbinis goes out mud and do not contaminates, moth wing
The self-cleaning performance on wing surface, the lower limb of water skipper freely walk on the water surface and do not sink, fish surface is protected in the water of oil pollution
Hold the super-hydrophobic phenomenon in a series of natures such as itself clean and cause the very big concern of many scholars.Barthlott et al. confirms
[W.Barthlott, et al.Planta, 1997,202:1.], the super-hydrophobicity of natural surface is their double mesostructure (micro-nano knot
Structure) cooperative effect and associated materials low surface free energy combination result.It is " the most clear that this special wettability is correlated with
Clean " the super-hydrophobicity coating prepared of ability antifouling [D.Weibel, et al.J.Phys.Chem.C, 2010,114,13219.],
Waterproof, anticorrosion [D.Weibel, et al.J.Phys.Chem.C, 2010,114,13219.], fluid drag-reduction, oil-water separation [R.M.
Jisr, et al.Angew.Chem., Int.Ed., 2005,44:782.], bio-medical [M.T.Khorasani, et al.Appl.Polym.
Sci., 2004,91:2042.] etc. field has broad application prospects, and increasingly gets more and more people's extensive concerning.
Jiang Lei et al. [L.Jiang, et al.Nature, 2004,432:36.] thinks, super hydrophobic surface can come real by two ways
Existing: one is to build coarse structure at hydrophobic surface；One is to modify low-surface energy substance on a rough surface.Along with people couple
In deepening continuously of super hydrophobic surface research, many preparation methoies continue to bring out, and the most common method has: lithographic technique, Zhao
Et al. use complicated photoetching process monocrystalline silicon surface build micro-nano structure [H.Zhao, et al.Langmuir, 2011,27,5927.],
Mould plate technique, Jiang et al. use anodic alumina films be template [L.Jiang, et al.Angew.Chem., Int.Ed., 2003,42:
800.], self-assembling technique [R.M.Jisr, et al.Angew.Chem., Int.Ed., 2005,44:782.], deposition technique [C.P.Ruan,
Et al.Angew.Chem., Int.Ed., 2014,53,5556.] etc., these preparations or production process have strict limit to the selection of substrate
While system, material surface is modified modifying by the low-surface energy substance that the most all have employed costliness, and preparation process is complicated,
Complex process is harsh.
Summary of the invention
The purpose of the present invention is cost intensive present in current techniques, uses the deficiencies such as limited, it is provided that low cost feedstock system
Standby technology, the super hydrophobic coating having wide range of applications.Use inorganic matter to carry out constructing of micro-nano compound structure, and select different
Adhesive is that the micro-nano structure of preparation is bonded in different base by undercoating, is had the multiaspect of micro-nano structure by template preparation
Body super hydrophobic coating is external coating, by the mutual bonding of inside and outside coating, gained coating maximum static contact angle 162.0 °, roll angle
Less than 5 °, reach super-hydrophobic condition.This external coating has microcosmic nanostructured groove and hole, when drop and Studies On Contacts of Rough Surfaces
Time, the air in these grooves and hole and polyhedron have together decided on the wellability of this coating.Due to capillary effect liquid
Drip the inside that cannot penetrate into coarse structure, but frame is on micro-nano structure with air, presents super-hydrophobic phenomenon.For this
Situation, meets the Cassie-Baxter model generally acknowledged now.In the present invention, the preparation manipulation of coating is simple, with low cost, prepares
Without the very complicated process such as photoetching, electrochemical deposition in journey, it is not necessary to expensive device and harsh process conditions.
The technical scheme is that
1) a kind of inorganic matter super hydrophobic coating, this material is prepared by following methods, comprises the following steps:
By Ludox condition of negative pressure, (pressure is subatmospheric 0.1MPa, and following steps and case study on implementation negative pressure and vacuum pressure are same
This condition) under inject in the reactor equipped with Nano microsphere template, submergence template 2h, then reactor sealed and put into constant temperature
In case, 60 DEG C of reaction 12h, select intensification or water soaking to remove removing template, obtain solid block micro-nano and be combined polyhedron, treat institute
Obtain block micro-nano and be combined polyhedron after drying, be fully ground to powder；Take powder and pour in another reactor, add dispersion
Liquid acetone, then at 25～50 DEG C, addition low-surface-energy is silane coupler modified, reacts 10～15h, then makes micro-nano multiple by volatilization
Closing polyhedron powder quality percent concentration is 0.5%～20%, is i.e. prepared into super hydrophobic coating；
Wherein material proportion (mass ratio) is that micro-nano is combined polyhedron powder: dispersion liquid: silane coupler=1:10-100:0.1-10.0；
Described step 1) in template include that polyacrylamide (PAM) Nano microsphere, polymethyl methacrylate (PMMA) are received
Meter Wei Qiu or polystyrene (PS) Nano microsphere, the most each template be prepared as known technology；
Described powder diameter distribution is 100nm-5000nm；
Described step 1) in the preparation method of Ludox, comprise the following steps: by tetraethyl orthosilicate (TEOS), dehydrated alcohol
(EtOH), deionized water (H2O) and concentrated hydrochloric acid (HCl) mixing after at 60 DEG C hydrolysis 2h gained, its material is joined
It it is tetraethyl orthosilicate (TEOS) than (volume ratio): dehydrated alcohol (EtOH): deionized water (H2O): concentrated hydrochloric acid (HCl)
=1:1-5:0.1-0.5:0.05-0.5；Wherein the concentration of concentrated hydrochloric acid is 37% (mass fraction)；
Described step 1) in silane coupler used be octyl group silane, perfluoro capryl trimethoxy silane, perfluoro capryl triethoxy
Silane, perfluoro decyl trimethoxy silane, perfluoro decyl triethoxysilane, trifluoro propane trimethoxy silane, hexamethyl two
Silazane or octamethylcy-clotetrasiloxane；
2) application process of the inorganic matter super hydrophobic coating described in, constructing for super-hydrophobic coat, comprise the following steps:
First, undercoating solution is coated on substrate material surface, after cured, uses made using as external coating of spraying process
Super hydrophobic coating is coated on undercoating, treats the dispersion liquid volatilization of external coating completely, i.e. constitutes super-hydrophobic coat；
The matrix material of described undercoating coating material is timber, metal, cement, fabric, plastics or glass；
Described undercoating is adhesive material, specially epoxy resin (EP), butadiene-styrene rubber (SEBS), Lauxite (UF),
Polyurethane (PU), polyvinyl acetate (PVAc) or polyvinyl alcohol (PVA).
The invention have the benefit that the present invention can be coated on multiple common used material surface, preparation method for coating is succinct, and obtains
Super hydrophobic surface there is the stability of excellence, so the super hydrophobic coating prepared of the present invention has good application in many fields
Prospect:
(1) super hydrophobic coating of the present invention can coat and timber, metal, cement, fabric, plastics, glass surface, has good stream
Body drag reduction capability, superpower " automatically cleaning " water proof anti-soil effect, to the coating glass of super hydrophobic coating, water in example one
Mud surface has carried out antifouling test；
(2) present invention has expanded the range of super hydrophobic coating, this is because this coating can be bonded on different adhesives, as
Epoxy resin, butadiene-styrene rubber, Lauxite, polyurethane, polyvinyl acetate or polyvinyl alcohol, according to using environment choosing
Selecting different base materials, by the various combination of adhesive Yu base material, range is widened, and can be coated on difference
The surface of material, has good fluid drag-reduction ability, superpower " automatically cleaning " water proof anti-soil effect；This rustproof lacquer coats
Excellent bonding effect all can be presented in different undercoating；At present, the method has no domestic and international relevant report at present；
(3) present invention is during bonding, and micro-rough structure has contributed much, and liquid or semisolid adhesive touch nanostructured
When groove and hole, the permeability of nano pore makes micro-nano structure facetted portion subpackage be embedded in adhesive, macroscopically in
Reveal in excellent bonding effect, example one and example two and respectively the coating glass of super hydrophobic coating, cement surface are carried out
Also being tested its recycling while antifouling test, find after mud contamination 10 times, super hydrophobic surface is still
The cleanest, the microscope slide maximum static contact angle of coating super hydrophobic coating reaches 162.0 °, and roll angle is less than 5 °；
(4) present invention is simple to operate, with low cost, and has excellence, stable ultra-hydrophobicity, in preparation process without photoetching,
The complex processes such as electrochemical deposition, it is not necessary to expensive device and harsh process conditions, have good Industry Development Prospect.
Accompanying drawing explanation
1) Fig. 1 is the microstructure SEM photograph of super-hydrophobic coat constructed by embodiment one step (1)；
2) Fig. 2 is the optical photograph of super-hydrophobic coat constructed by embodiment one step (2), and wherein, upper right corner illustration is the quiet of this coating
State contact angle test photo, maximum static contact angle reaches 162.0 °；
3) Fig. 3 is substrate of glass coating super-hydrophobic coat (right) constructed by embodiment one step (2) and uncoated super-hydrophobic coat (left)
Through the contrast photo that mud repeatedly pollutes；
4) super-hydrophobic coat (right) that during Fig. 4 is embodiment one, micro-nano polyhedron is constructed at the bottom of cement based and uncoated super-hydrophobic painting
Layer (left) photo in kind after mud contamination；
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described further；
Wherein, the preparation of template, according to the difference of mould material, take one of following methods:
Method one: average particle size range is in the preparation of polyacrylamide (PAM) Nano microsphere of 300nm-1000nm
According to patent CN102924856A, by dispersion copolymerization method, 75 DEG C of downhill reaction devices are sequentially added into acrylamide (AM),
Polyvinylpyrrolidone (PVP), deionized water (H2O), dehydrated alcohol (EtOH), be stirring evenly and then adding into initiator, control
Invariablenes turning speed processed, course of reaction is carried out all the time under inert gas shielding, and gained emulsion is moved to beaker by stopped reaction after 7h
In, treat that solvent volatilizees completely naturally, i.e. obtain mean diameter micro-in polyacrylamide (PAM) nanometer of 300nm-1000nm
Ball；
Wherein material proportion (mass ratio) is acrylamide (AM): polyvinylpyrrolidone (PVP): deionized water (H2O):
Dehydrated alcohol (EtOH): initiator=1:0.1-1:0.001-0.1:5-10:1-5；
In method one, initiator is azodiisobutyronitrile (AIBN), 2,2'-Azobis(2,4-dimethylvaleronitrile), dibenzoyl peroxide, peroxidating 12
Acyl, di-isopropyl peroxydicarbonate or perbenzoic acid spy's butyl ester, the amount of initiator wherein added is monomer mass
0.1%～10%；
Method two: average particle size range is in the system of polymethyl methacrylate (PMMA) Nano microsphere of 300nm-1000nm
Standby
By emulsion polymerization, 65 DEG C of downhill reaction devices are sequentially added into methyl methacrylate (MMA), sodium bicarbonate
(NaHCO3), dodecyl sodium sulfate (SDS), deionized water (H2O), it is stirring evenly and then adding into initiator potassium persulfate
(KPS), controlling invariablenes turning speed, course of reaction is carried out all the time under inert gas shielding, stopped reaction after 6h, by gained milkiness
Liquid moves in beaker, treats that solvent volatilizees completely naturally, i.e. obtains the mean diameter poly-methyl methacrylate at 300nm-1000nm
Ester (PMMA) Nano microsphere；
Wherein material proportion (mass ratio) is methyl methacrylate (MMA): sodium bicarbonate (NaHCO3): dodecyl
Sodium sulfonate (SDS): deionized water (H2O): potassium peroxydisulfate (KPS)=1:0.001-0.01:0.0005-0.005:1-20:
0.001-0.01；
Method three: average particle size range is in the preparation of 80nm-1000nm polystyrene (PS) Nano microsphere
According to patent CN102643398A, by emulsion polymerization, 70 DEG C of downhill reaction devices are sequentially added into deionized water (H2O)、
Dodecyl sodium sulfate (SDS), sodium bicarbonate (NaHCO3), styrene (St), be stirring evenly and then adding into initiator over cure
Acid potassium (KPS), controls invariablenes turning speed, and course of reaction is carried out all the time under inert gas shielding, stopped reaction after 13h, by institute
Obtaining emulsion removal to stand, under solvent room temperature, volatilization to the greatest extent, obtains mean diameter polyphenyl second in the range of 80nm-1000nm naturally
Alkene (PS) Nano microsphere；
Wherein material proportion (mass ratio) is styrene (St): dodecyl sodium sulfate (SDS): sodium bicarbonate (NaHCO3):
Deionized water (H2O): potassium peroxydisulfate (KPS)=1:0.00025-0.005:0.001-0.01:2.0-10.0:0.0015-0.015；
Embodiment one:
(1) preparation of super hydrophobic coating
The reactor equipped with 80nm polystyrene (PS) Nano microsphere prepared according to method three is injected under Ludox condition of negative pressure
In, submergence template 2h, then reactor sealed and put in calorstat, 60 DEG C of reaction 12h, 570 DEG C of temperature programmings remove
Template obtains solid block micro-nano and is combined polyhedron, the block micro-nano of gained is combined polyhedron and is fully ground to powder, this powder
Particle size distribution range be 100nm-5000nm (Britain's Malvern company nano particle size and potentiometric analyzer Nano-ZS90 test,
Following steps and case study on implementation are same)；Take wherein 0.1g micro-nano to be combined in polyhedron powder addition reactor, be subsequently adding 10.0mL
(7.88g) dispersion liquid acetone, treats that system temperature reaches 50 DEG C and adds 20.6 μ L (0.30g) perfluoro capryl trimethoxy silanes,
Modified-reaction carries out 12h, and it is 2.0% that reaction control micro-nano to be combined polyhedral mass fraction by volatilization after terminating, and is i.e. prepared into
Super hydrophobic coating；
Being prepared as of Ludox adds 8.4mL tetraethyl orthosilicate (TEOS), 10.0mL dehydrated alcohol (EtOH), 2.7mL successively
Deionized water (H2O), 1.5mL concentrated hydrochloric acid (HCl) in reactor, at 60 DEG C, hydrolysis 2h is stand-by；
(2) the constructing of the application of super hydrophobic coating, i.e. super-hydrophobic coat
Constructing of super-hydrophobic coat includes undercoating and external coating: in this example, undercoating solution is the polyurethane binder purchased,
Undercoating uniform application is covered in substrate of glass, after adhesive 100 DEG C solidification 10min by step (1) super hydrophobic coating i.e.
External coating is sprayed at (undercoating, without pro rate, only need to all be coated by inside and outside coating) on undercoating, treats dispersion liquid
Completely, 100 DEG C solidify 5min, build super-hydrophobic coat in volatilization；
Accompanying drawing 1 is the SEM photograph (FEI Co. NanoSEM 450) of this super hydrophobic coating, is prepared by this embodiment
Super hydrophobic coating microstructure, comprises various nano level groove on the bulk material of micrometer structure, is made up of multiple both
Conjunction structure is coated on body surface and reaches super-hydrophobic effect；
Accompanying drawing 2 is the water droplet under room temperature (25 DEG C) (dyeing through methylene blue) optical photograph on this super-hydrophobic coat, water droplet
Still keeping spherical, show that this surface has bigger contact angle and stronger hydrophobic performance, wherein upper right corner illustration is this coating
Static contact angle test photo, used test instrument isThe DSA30 contact angle tester that company produces, in room temperature (25
DEG C) under select pure water (prepared by the UPR-11-10T water purification machine of Chengdu Ultra Pure Science & Technology Co., Ltd) test sample maximum static state connect
Feeler is 162.0 °, and roll angle is less than 5 ° (contact angle test condition described in following steps and embodiment and test instrunment are same)；
The microscope slide (right) of this coating super-hydrophobic coat is carried out mud contamination experiment, and this experiment is at room temperature carried out, coated side
Amass and account for the 4/5 of microscope slide area, about 16cm2, mud influence basin accounts for the 2/3 of microscope slide area, super thin with uncoated
Microscope slide (left) contrast of water coating, repeatedly in circulation experiment, mud is not adhere to have been coated with on the microscope slide of super hydrophobic coating,
Accompanying drawing 3 is its design sketch；
By undercoating polyurethane and external coating constructing super-drainage coating at the bottom of cement based, testing through mud contamination, this experiment exists
Carrying out under room temperature, cement substrate front surface used is about 400cm2(long 20cm, wide 20cm), coated area is about 200cm2(left),
Wash away its " automatically cleaning " ability of test (mud washes away rear effect and sees accompanying drawing 4) by mud, test process finding, mud does not glues
Being attached to have been coated with at the bottom of the cement based of super hydrophobic coating, this coating has excellent " automatically cleaning " ability；
Embodiment two:
(1) preparation of super hydrophobic coating
Inject equipped with in the reactor of 200nm polystyrene (PS) Nano microsphere prepared through method three under Ludox condition of negative pressure,
Submergence template 2h, then seals reactor and puts in calorstat, 60 DEG C of reaction 12h, and 570 DEG C of temperature programmings remove template
Obtain solid block micro-nano and be combined polyhedron, the block micro-nano of gained is combined polyhedron and is fully ground to powder, take wherein 0.1g
Micro-nano is combined polyhedron powder and adds in reactor, is subsequently adding 10.0mL (7.88g) dispersion liquid acetone, treats that system temperature reaches
25 DEG C add 36.9 μ L (0.57g) perfluoro decyl trimethoxy silanes, and modified-reaction carries out 12h, and reaction passes through volatilization after terminating
Control micro-nano being combined polyhedral mass fraction is 2.7%, is i.e. prepared into super hydrophobic coating；
The preparation of Ludox is with embodiment one；
(2) the constructing of the application of super hydrophobic coating, i.e. super-hydrophobic coat
In this example, undercoating is the butadiene-styrene rubber binding agent purchased, by undercoating uniform application in substrate of glass, after coating
After room temperature (25 DEG C) solidification 10min, the spraying of step (1) super hydrophobic coating i.e. external coating is built super-hydrophobic coat on undercoating；
After tested, this sample maximum static contact angle is 155.2 °；
Embodiment three:
(1) preparation of super hydrophobic coating
The reaction equipped with 300nm polyacrylamide (PAM) Nano microsphere prepared through method one is injected under Ludox condition of negative pressure
In device, submergence template 2h, then reactor sealed and put in calorstat, 60 DEG C of reaction 12h, soak in water and remove removing template
Obtain solid block micro-nano and be combined polyhedron, the block micro-nano of gained is combined polyhedron and is fully ground to powder, take wherein 0.1g
Micro-nano is combined polyhedron powder and adds in reactor, is subsequently adding 10.0mL (7.88g) dispersion liquid acetone, treats that system temperature reaches
25 DEG C add 19.1 μ L (0.22g) trifluoro propane trimethoxy silanes, and modified-reaction carries out 12h, and reaction passes through volatilization after terminating
Control micro-nano being combined polyhedral mass fraction is 5.0%, is i.e. prepared into super hydrophobic coating；
The preparation of Ludox is with embodiment one；
(2) the constructing of the application of super hydrophobic coating, i.e. super-hydrophobic coat
In this example, undercoating is the epobond epoxyn purchased, by undercoating uniform application in substrate of glass, after coating
After room temperature (25 DEG C) solidification 10min, the spraying of step (1) super hydrophobic coating i.e. external coating is built super-hydrophobic coat on undercoating；
This sample maximum static contact angle is 156.0 ° after tested；
Mud contamination experiment effect is with embodiment 1；
Embodiment four:
(1) preparation of super hydrophobic coating
400nm polymethyl methacrylate (PMMA) nanometer equipped with preparing is injected through method two micro-under Ludox condition of negative pressure
In the reactor of ball, submergence template 2h, then reactor sealed and put in calorstat, 60 DEG C of reaction 12h, 570 DEG C of journeys
Sequence heats up and goes removing template to obtain solid block micro-nano to be combined polyhedron, the block micro-nano of gained is combined polyhedron and is fully ground to powder
End, takes wherein 0.1g micro-nano and is combined in polyhedron powder addition reactor, be subsequently adding 10.0mL (7.88g) dispersion liquid acetone,
Treating that system temperature reaches 25 DEG C and adds 36.9 μ L (0.57g) perfluoro decyl trimethoxy silanes, modified-reaction carries out 12h, reaction
Control micro-nano being combined polyhedral mass fraction by volatilization after end is 5.0%, is i.e. prepared into super hydrophobic coating；
The preparation of Ludox is with embodiment one；
(2) the constructing of the application of super hydrophobic coating, i.e. super-hydrophobic coat
In this example, undercoating is the epobond epoxyn purchased, and by undercoating uniform application in substrate of glass, treats its room temperature
After (25 DEG C) solidification 10min, the spraying of step (1) super hydrophobic coating i.e. external coating is built super-hydrophobic coat on undercoating；
This sample maximum static contact angle is 154.7 ° after tested；
Mud contamination experiment effect is with embodiment 1；
Embodiment five:
(1) preparation of super hydrophobic coating
Inject equipped with in the reactor of 80nm polystyrene (PS) Nano microsphere prepared through method three under Ludox condition of negative pressure,
Submergence template 2h, then seals reactor and puts in calorstat, 60 DEG C of reaction 12h, and 570 DEG C of temperature programmings remove template
Obtain solid block micro-nano and be combined polyhedron, the block micro-nano of gained is combined polyhedron and is fully ground to powder, take wherein 0.1g
Micro-nano is combined polyhedron powder and adds in reactor, is subsequently adding 10.0mL (7.88g) dispersion liquid acetone, treats that system temperature reaches
50 DEG C add 31.0 μ L (0.30g) octamethylcy-clotetrasiloxanes, and modified-reaction carries out 12h, and reaction is controlled by volatilization after terminating
It is 2.0% that micro-nano is combined polyhedral mass fraction, is i.e. prepared into super hydrophobic coating；
The preparation of Ludox is with embodiment one；
(2) the constructing of the application of super hydrophobic coating, i.e. super-hydrophobic coat
In this example, undercoating is to be mainly composed of the binding agent of polyvinyl acetate (PVAc), and its formula is: 25.0wt% (wt%
Refer to this material account for the mass percent of total system, following steps and embodiment with) polyvinyl acetate (PVAc), 3.0wt% ten
Dialkyl benzene sulfonic acids sodium (SDBS), 72.0wt% deionized water (H2O), by undercoating uniform application in substrate of glass, treat
After its room temperature (25 DEG C) solidification 10min, the i.e. external coating of step (1) super hydrophobic coating is sprayed on undercoating and builds super-hydrophobic painting
Layer；
After tested, this sample maximum static contact angle is 153.5 °；
Mud contamination experiment effect is with embodiment 1；
Embodiment six:
Enforcement step is with embodiment one, and difference is that undercoating adhesive used is mainly composed of polyvinyl alcohol, and its formula is
25wt% polyvinyl alcohol (PVA), 3wt% dodecylbenzene sodium sulfonate (SDBS), 72wt% deionized water (H2O), by interior painting
The i.e. external coating of step (1) super hydrophobic coating, on plastic plate, is sprayed after its room temperature (25 DEG C) solidification 10min by layer uniform application
Super-hydrophobic coat is built on undercoating；
After tested, this sample maximum static contact angle is 160.7 °；
Mud contamination experiment effect is with embodiment 1；
Embodiment seven:
Enforcement step is with embodiment one, and difference is that undercoating adhesive used is the urea-formaldehyde resin adhesive purchased, by undercoating
Uniform application is on iron plate, after its room temperature (25 DEG C) solidification 15min by step (1) super hydrophobic coating in i.e. external coating is sprayed at
Super-hydrophobic coat is built on coating；
After tested, this sample maximum static contact angle is 160.1 °；
Mud contamination experiment effect is with embodiment 1；
Embodiment eight:
Enforcement step is with embodiment one, and difference is, by undercoating uniform application in wood substrate, treats adhesive 100 DEG C
Being sprayed on undercoating by the i.e. external coating of step (1) super hydrophobic coating after solidification 5min, treat dispersion liquid volatilization completely, 100 DEG C solid
Change 5min, build super-hydrophobic coat；
After tested, this sample maximum static contact angle is 157.6 °；
Mud contamination experiment effect is with embodiment 1；
Embodiment nine:
Enforcement step is with embodiment one, and difference is undercoating uniform application in fabric substrate, treats adhesive 100 DEG C
After solidification 10min, the i.e. external coating of step (1) super hydrophobic coating is sprayed on undercoating, treats dispersion liquid volatilization completely, 100 DEG C
Solidification 5min, builds super-hydrophobic coat；
After tested, this sample maximum static contact angle is 161.4 °；
Mud contamination experiment effect is with embodiment 1；
Embodiment result is added up
Unaccomplished matter of the present invention is known technology.
Claims (6)
1. an inorganic matter super hydrophobic coating, is characterized by that this coating is prepared by following methods, comprises the following steps:
To inject in the reactor equipped with Nano microsphere template under Ludox condition of negative pressure, submergence template 2h, then that reactor is close
Seal and put in calorstat, 60 DEG C of reaction 12h, select intensification or water soaking to remove removing template, obtain solid block micro-nano and be combined
Polyhedron, treats that gained bulk micro-nano is combined polyhedron dried, is fully ground to powder；Take powder and pour another reactor into
In, add dispersion liquid acetone, then addition low-surface-energy is silane coupler modified at 25～50 DEG C, reacts 10～15h, then passes through
Volatilization makes micro-nano be combined polyhedron powder account for coating quality percent concentration to be 0.5%～20%, be i.e. prepared into super hydrophobic coating；
Wherein quality of material is combined polyhedron powder than for micro-nano: dispersion liquid: low-surface-energy silane coupler=1:10-100:
0.1-10.0；
Described template include polyacrylamide (PAM) Nano microsphere, polymethyl methacrylate (PMMA) Nano microsphere or
Polystyrene (PS) Nano microsphere；
Described low-surface-energy silane coupler is perfluoro capryl trimethoxy silane, perfluoro capryl triethoxysilane, perfluoro decyl
Trimethoxy silane, perfluoro decyl triethoxysilane, trifluoro propane trimethoxy silane, hexamethyldisiloxane or prestox
Cyclotetrasiloxane.
2. inorganic matter super hydrophobic coating as claimed in claim 1, is characterized by that described powder diameter distribution is
100nm-5000nm。
3. inorganic matter super hydrophobic coating as claimed in claim 1, is characterized by the preparation method of described Ludox, including following
Step: by tetraethyl orthosilicate (TEOS), dehydrated alcohol, deionized water and concentrated hydrochloric acid mix after at 60 DEG C hydrolysis 2h
Gained, its volume of material is than for tetraethyl orthosilicate (TEOS): dehydrated alcohol: deionized water: concentrated hydrochloric acid=1:1-5:0.1-0.5:
0.05-0.5；Wherein the concentration of concentrated hydrochloric acid is 37% (mass fraction).
4. the application process of inorganic matter super hydrophobic coating as claimed in claim 1, is characterized by constructing for super-hydrophobic coat,
Comprise the following steps:
First, undercoating solution is coated on substrate material surface, after cured, uses made using as external coating of spraying process
Super hydrophobic coating is coated on undercoating, treats the dispersion liquid volatilization of external coating completely, i.e. constitutes super-hydrophobic coat.
5. the application process of inorganic matter super hydrophobic coating as claimed in claim 4, it is characterized by described matrix material be timber,
Metal, cement, fabric, plastics or glass.
6. the application process of inorganic matter super hydrophobic coating as claimed in claim 4, is characterized by that described undercoating is adhesive material
Material, specially epoxy resin (EP), butadiene-styrene rubber, Lauxite (UF), polyurethane (PU), polyvinyl acetate (PVAc)
Or polyvinyl alcohol (PVA).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510126003.4A CN104672962B (en) | 2015-03-22 | 2015-03-22 | A kind of inorganic matter super hydrophobic coating and application thereof |
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| CN105542211A (en) * | 2015-12-02 | 2016-05-04 | 安徽省通达包装材料有限公司 | High temperature-resistant and anti-aging two-side coated polyester aluminized film and production method thereof |
| CN105462423A (en) * | 2015-12-11 | 2016-04-06 | 安徽华中天力铝业有限公司 | Antibacterial deodorization two-side coating polyester aluminized film and production method thereof |
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| CN105567046A (en) * | 2015-12-11 | 2016-05-11 | 安徽华中天力铝业有限公司 | Carbon nanotube doped and modified double-side coated polyester aluminized film and production method for same |
| CN108068182A (en) * | 2017-12-21 | 2018-05-25 | 安徽明豪实木家俱有限公司 | A kind of solid wood furniture surface hydrophobicity method of modifying |
| CN108101385B (en) * | 2017-12-28 | 2021-07-23 | 中科院广州化学有限公司 | Transparent super-hydrophobic coating and preparation method and application thereof |
| CN108165058B (en) * | 2017-12-30 | 2020-05-26 | 浙江工业大学 | Preparation method of silicon-based micro-nano secondary structure super-hydrophobic surface |
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| JP2019172639A (en) * | 2018-03-29 | 2019-10-10 | 日揮触媒化成株式会社 | Pest repellent composition |
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| CN109734325A (en) * | 2019-02-20 | 2019-05-10 | 邹玉 | A kind of preparation method of super-hydrophobic antifog glass |
| CN109836052A (en) * | 2019-03-15 | 2019-06-04 | 长春工业大学 | A kind of construction method of polymer matrix super-hydrophobic coat |
| CN110760916B (en) * | 2019-11-18 | 2022-04-05 | 和县科嘉阀门铸造有限公司 | Method for improving corrosion resistance of magnesium alloy valve |
| CN110981225A (en) * | 2019-12-20 | 2020-04-10 | 苏州浩纳新材料科技有限公司 | Hydrophobic rainproof coating for glass, preparation method and application method |
| CN114276704A (en) * | 2021-12-31 | 2022-04-05 | 武汉理工大学 | Super-amphiphobic coating and preparation method and application thereof |
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| CN1323025C (en) * | 2005-11-22 | 2007-06-27 | 华中科技大学 | Super hydrophobic surface possessing dual microtexture and preparation method |
| WO2009018327A2 (en) * | 2007-07-30 | 2009-02-05 | Soane Labs, Llc | Ultraphobic compositions and methods of use |
| CN101544476A (en) * | 2008-03-28 | 2009-09-30 | 皮尔金顿集团有限公司 | Super-hydrophobic transparent coating and preparation method thereof |
| CN102219391B (en) * | 2011-03-28 | 2013-10-30 | 华南理工大学 | Method for forming super-hydrophobic coating on glass matrix |
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