CN110484104A - A kind of super hydrophobic coating and its preparation, application - Google Patents
A kind of super hydrophobic coating and its preparation, application Download PDFInfo
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- CN110484104A CN110484104A CN201910817317.7A CN201910817317A CN110484104A CN 110484104 A CN110484104 A CN 110484104A CN 201910817317 A CN201910817317 A CN 201910817317A CN 110484104 A CN110484104 A CN 110484104A
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- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 66
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 15
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000002105 nanoparticle Substances 0.000 claims abstract description 14
- 239000000049 pigment Substances 0.000 claims abstract description 14
- 229920001225 polyester resin Polymers 0.000 claims abstract description 13
- 239000004645 polyester resin Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 18
- 239000004814 polyurethane Substances 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 230000037452 priming Effects 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000007590 electrostatic spraying Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000009849 deactivation Effects 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000011538 cleaning material Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000011246 composite particle Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920005573 silicon-containing polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000218231 Moraceae Species 0.000 description 1
- 235000008708 Morus alba Nutrition 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical group OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- -1 pipeline Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of super hydrophobic coating and its preparations, application, are related to super hydrophobic coating technical field.Super hydrophobic coating of the present invention includes activity Al2O3Nano particle and component A；Component A includes perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent；Wherein, the weight ratio of perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent are as follows: 7.5:0.8:0.6:0.5:0.6.The present invention is by by active Al2O3Nano particle, perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent carry out being mixed and made into super-hydrophobic mixture according to a certain percentage, and super hydrophobic coating is made by preparation process, and it is applied to the surface of object, to reach the self-cleaning effect of object surface；The super hydrophobic surface performance of super hydrophobic coating is effectively raised, and production process is simple, brings convenience to the daily cleaning use of people.
Description
Technical field
The invention belongs to super hydrophobic coating technical fields, more particularly to a kind of super hydrophobic coating and its preparation, application.
Background technique
The pollutant or dust that self-cleaning surface refers to surface are in natural external forces such as gravity, rainwater, wind-force or solar energy
Effect is lower being capable of Automatic-falling or a kind of functional surface for being degraded.It can be divided into according to the difference of wetability super-hydrophobic from clear
Clean surface and superhydrophilic self-cleaning surface.Wetability can be characterized by water droplet contact angle, and being known as 150 ° of general contact angle > is super thin
Water surface, contact angle close to 0 ° be known as ultra-hydrophilic surface.Self-cleaning material can maintain the clear of surface under field conditions (factors)
It is clean, without deliberately cleaning, save labour；Exterior wall glass, ceramic tile, curtain wall contour level building surface are as can using automatically cleaning skill
Art, it will be able to keep surface-brightening for example new, greatly reduce cleaning cost, reduce high altitude operation to the prestige of cleaning worker life security
The side of body.
And the application of the more self-cleaning material of recent researches is related to coatings industry, building materials, pipeline, vehicle
The industries such as traffic, electronic equipment, textile, show great application prospect；But existing super hydrophobic coating self-cleaning property
Can be poor, and production is cumbersome, brings inconvenience to people's later period use, therefore a kind of super hydrophobic coating of requiring study improves object
Superhydrophobic surface behavior and self-cleaning performance.
Summary of the invention
The purpose of the present invention is to provide a kind of super hydrophobic coating and its preparations, application, by active Al2O3It is nano particle, complete
Perfluoroalkyl polyether modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent carry out being mixed according to a certain percentage super-hydrophobic
Mixture, and super hydrophobic coating is made by preparation process, and be applied to the surface of object, to reach the automatically cleaning of object surface
Effect；It is poor to solve existing super hydrophobic coating self-cleaning performance, and production is cumbersome, is used to people's later period and bring inconvenient ask
Topic.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of super hydrophobic coating and its preparation, application, and the super hydrophobic coating includes activity Al2O3Nanometer
Grain and component A；The component A includes perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent；
Wherein, the weight ratio of the perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent are as follows:
7.5:0.8:0.6:0.5:0.6。
Further, the activity Al2O3The additive amount of nano particle is the 10% of super hydrophobic coating weight.
A kind of preparation of super hydrophobic coating, comprising the following steps:
Step 1, by active Al2O3Nano particle, perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and solid
Agent is added in high-speed mixer and stirs evenly, and mixture is made；
Mixture is put into Double-screw and carries out melting extrusion by step 2；
Automatically cleaning powder super hydrophobic coating is prepared by the mixture of melting through tabletting, broken and screening in step 3；
Step 4 is painted on object substrate using electrostatic spraying device, is heating and curing through 200 DEG C, and super-hydrophobic painting is formed
Layer.
Further, the super hydrophobic coating is applied in clad steel plate.
Further, the clad steel plate be followed successively by from top to bottom PE layers, it is adhesive phase, super-hydrophobic finishing coat, super-hydrophobic
Priming coat, UV layers, PET, aluminium coated, polyurethane adhesive layer, black pad pasting top coat layer, white polyurethane prime coat, Chrome-free it is blunt
Change layer and zinc-plated substrate.
The invention has the following advantages:
The present invention is by by active Al2O3Nano particle, perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent
It carries out being mixed and made into super-hydrophobic mixture according to a certain percentage with curing agent, and super hydrophobic coating is made by preparation process,
And it is applied to the surface of object, to reach the self-cleaning effect of object surface；Effectively raise the super-hydrophobic of super hydrophobic coating
Surface property, and production process is simple, brings convenience to the daily cleaning use of people, saves the economic cost of enterprise.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structural schematic diagram of clad steel plate of the invention；
In attached drawing, parts list represented by the reference numerals are as follows:
1-PE layers, 2- adhesive phase, the super-hydrophobic finishing coat of 3-, the super-hydrophobic priming coat of 4-, 5-UV layers, 6-PET, 7- aluminizes
Layer, 8- polyurethane adhesive layer, 9- black pad pasting top coat layer, 10- white polyurethane prime coat, 11- chromium-free deactivation layer, 12- plating
Zinc-base plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, the indicating positions such as term "lower", "upper" or positional relationship are only
For the convenience of describing the present invention and simplifying the description, rather than the component or element of indication or suggestion meaning must have specific side
Position, is constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
If the surface of super hydrophobic surface can be lower than pollutant, pollutant is difficult to be stably adhered to its surface,
Self-cleaning realization needs water droplet to contact with contaminant particle, takes away pollutant with the rolling of water droplet, obtains super hydrophobic surface
Means are usually to drop low-surface-energy or have both in the micro-nano coarse structure of surface structure or the two.
As shown in Figure 1, the present invention is a kind of super hydrophobic coating and its preparation, application, super hydrophobic coating includes activity Al2O3
Nano particle and component A；Component A includes perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent；
Wherein, the weight ratio of perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent are as follows: 7.5:
0.8:0.6:0.5:0.6。
Wherein, active Al2O3The additive amount of nano particle is the 10% of super hydrophobic coating weight；As nanometer Al2O3Particle
When additive amount is 10%, the water droplet contact angle of coating can reach 165 °.
Utilize CaCO3/ SiO2 prepares mulberries shape composite particles, then with dimethyl silicone polymer be surface modified with
Super hydrophobic surface is successfully prepared in self assembly；After tested, the surface water contact angle and roll angle be respectively (164 ± 2.5) ° and
5°.Its outstanding super-hydrophobicity can be attributed to the roughness (based on composite particles) and low-surface-energy (base of micro-or nano size
In dimethyl silicone polymer) synergistic effect.Coating Surface Roughness can also be constructed by other reactive nanoparticles, by adding
Add active Al2O3The super-hydrophobicity of powder coating surface may be implemented in nano particle；
A kind of preparation of super hydrophobic coating, comprising the following steps:
Step 1, by active Al2O3Nano particle, perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and solid
Agent is added in high-speed mixer and stirs evenly, and mixture is made；
Mixture is put into Double-screw and carries out melting extrusion by step 2；
Automatically cleaning powder super hydrophobic coating is prepared by the mixture of melting through tabletting, broken and screening in step 3；
Rapid four, it is painted on object substrate using electrostatic spraying device, is heating and curing through 200 DEG C, form super-hydrophobic coat.
Wherein, super hydrophobic coating is applied in clad steel plate.
Wherein, clad steel plate is followed successively by PE layer 1, adhesive phase 2, super-hydrophobic finishing coat 3, super-hydrophobic priming coat from top to bottom
4, UV layer 5, PET6, aluminium coated 7, polyurethane adhesive layer 8, black pad pasting top coat layer 9, white polyurethane prime coat 10, Chrome-free
Passivation layer 11 and zinc-plated substrate 12.
What super-hydrophobic finishing coat 3 and super-hydrophobic priming coat 4 used is super hydrophobic coating, and the sequencing only sprayed is not
Together；Adhesive phase 2 is to resist super thin specific adhesion agent；
In addition, addition Nano-meter SiO_22Particle can also realize super-hydrophobicity, such as use mechanical blending method, to PRTV (for electricity
The abbreviation of the long-acting and anti-fouling flashing coating of Force system) hydrophobic nano SiO is added in Silicone Rubber Based Coatings2Particle successfully prepares excess of export
Hydrophobic composite coating makes the water contact angle of its coating be increased to 150 ° from original 106 °.
Experimental study shows Nano-meter SiO_22The loading of particle influences the micro-structure of film coated surface, in a certain range, two
Additive amount of the silica in composite coating is bigger, and the nanometer or micrometer structure of film coated surface are more uniform, and hydrophobic properties of the surface are got over
It is good.However super-hydrophobic coating preparation process is cumbersome, harsh condition is also to limit its widely applied factor.Spraying or rolling
The modes such as painting, which prepare automatic cleaning coating, will be applied to certain power-assisted.By the second of the alcohol dispersion liquid of polyphenylene sulfide and SiO2
Alcohol dispersion liquid is mixed in a certain proportion uniformly, and mixed liquor is then sprayed into slide or ceramic tile surface with spray gun, and 160~
Super hydrophobic composite coating is successfully prepared after being heat-treated 1.5h at a temperature of 300 DEG C.The study found that when the two mass ratio is 1:
1, and heat treatment temperature be 280 DEG C when, coating maximum water droplet contact angle be 158 °, roll angle is about 4 °.It is modified with perfluoro caprylic acid
TiO2It is sufficiently mixed with the tetrahydrofuran solution of polystyrene, is then sprayed on copper billet by a certain percentage, in different temperature
Lower maintenance film forming.The study found that modified TiO2It is 1: 1 with the mass ratio of polystyrene, and when curing temperature is 180 DEG C, coating
Maximum Contact angle is 166 °.With nano-TiO2With through organic-silicon-modified polyurethane be raw material, ethyl acetate is dispersing agent, utilize
Mixed liquor is sprayed on slide surface by spray coating method, is heated in 50 DEG C of baking ovens, is solidified at 90 DEG C, be successfully prepared TiO2/PU
The super-hydrophobic coat of micron and nanometer composite structure.
Therefore the present invention can utilize with upper type the super hydrophobic surface surface energy and/or surface structure for changing super-hydrophobic coat
Make micro-nano coarse structure.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of super hydrophobic coating, it is characterised in that:
The super hydrophobic coating includes activity Al2O3Nano particle and component A；The component A includes perfluoropolyether-modified polyester tree
Rouge, pigments and fillers, levelling agent, auxiliary agent and curing agent；
Wherein, the weight ratio of the perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent are as follows: 7.5:
0.8:0.6:0.5:0.6。
2. a kind of super hydrophobic coating according to claim 1, which is characterized in that the activity Al2O3The addition of nano particle
Amount is the 10% of super hydrophobic coating weight.
3. such as a kind of described in any item preparations of super hydrophobic coating of claim 1-2, which comprises the following steps:
Step 1, by active Al2O3Nano particle, perfluoropolyether-modified polyester resin, pigments and fillers, levelling agent, auxiliary agent and curing agent
It is added in high-speed mixer and stirs evenly, and mixture is made；
Mixture is put into Double-screw and carries out melting extrusion by step 2；
Automatically cleaning powder super hydrophobic coating is prepared by the mixture of melting through tabletting, broken and screening in step 3；
Rapid four, it is painted on object substrate using electrostatic spraying device, is heating and curing through 200 DEG C, form super-hydrophobic coat.
4. such as a kind of described in any item applications of super hydrophobic coating of claim 1-2, which is characterized in that the super hydrophobic coating
Applied in clad steel plate.
5. a kind of application of super hydrophobic coating according to claim 4, which is characterized in that the clad steel plate is from top to bottom
Be followed successively by PE layers, adhesive phase, super-hydrophobic finishing coat, super-hydrophobic priming coat, UV layers, PET, aluminium coated, polyurethane adhesive layer,
Black pad pasting top coat layer, white polyurethane prime coat, chromium-free deactivation layer and zinc-plated substrate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116445068A (en) * | 2023-05-31 | 2023-07-18 | 江苏大学 | Al (aluminum) alloy 2 O 3 /SiO 2 Polyurethane super-hydrophobic coating, preparation method and application thereof |
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Application publication date: 20191122 |