CN102391736A - Self-cleaning coating used for building curtain wall aluminum veneer and preparation method thereof - Google Patents
Self-cleaning coating used for building curtain wall aluminum veneer and preparation method thereof Download PDFInfo
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Abstract
The invention relates to self-cleaning coating used for a building curtain wall aluminum veneer and a preparation method thereof. The coating is divided into a first component, a second component and a third component, wherein the first component is coated on the surface of the aluminum veneer for forming a bottom coating; the second component is coated on the surface of the bottom coating to form a middle coating; the third component is coated on the surface of the middle coating to form a top coating; in the first component, polyester resin and amino resin serve as film forming substance, and silicon-titanium or silicon-zirconium coupling agent is used for greatly improving adhesive force on the aluminum veneer by the bottom coating; in the second component, fluoralkene alkyl vinyl ether or ester copolymer (FEVE) fluorocarbon resin serves as the film forming substance, and therefore the coating shows excellent durability, weather fastness and corrosion resistance; and in the third component, the FEVE fluorocarbon resin and organic silicon resin serve as the film forming substance, the coating surface tension is lowered by a fluorine and silicone interpenetrating network, the hydrophobicity and the contamination resistance of the coating surface are improved, and dirt on the coating surface is easy to clean. In addition, the preparation and construction processes of a coating system disclosed by the invention are simple, and the self-cleaning coating is especially suitable for protecting an aluminum sheet curtain wall.
Description
Technical field
The present invention relates to paint field, be specifically related to a kind of building curtain wall aluminum veneer with chalking paint and preparation method thereof
Background technology
As time goes on; The phenomenon that the top coat of building curtain wall loss of gloss, variable color, efflorescence can occur and come off under atmospheric environment; Cause the curtain wall base material exposed, curtain wall base material generation chemistry or electrochemical reaction and by corrosion, performance is degenerated when corrosive medium in the environment contacts; Even destroy, so the aseptic technic of curtain wall base material plays a part very important for the safety performance and the weather resistance of curtain wall base material.In addition, acid rain, various dust dirts etc. stick to the curtain wall surface easily in the atmospheric environment, and acid rain is corrosive to the curtain wall top coat; The dust dirt forms ugly stain at the curtain wall outside surface; Need manual regular to clean, if dirt be penetrated into film in, then can not stain be removed clean; Piebald appears in film coated surface, has a strong impact on sight.Change this present situation, can take following measure: the one, the corrosion-resistant and strong coating of weather resistance in the curtain wall surface-coated is isolated base material and corrosive medium; The 2nd, at curtain wall surface-coated self-cleaning coat (refer to the hydrophobic or hydrophilic physical property that relies on coating itself to be had, play the coating of antifouling and easy clean effect), this kind method cost is lower, and effect is better, applied range.
There are problems in traditional building curtain wall aluminum veneer with chalking paint, as: contain strontium yellow usually in (1) coating, cause heavy metal contamination; (2) coating is to the poor adhesive force of aluminum veneer; (3) weather resistance of coating is limited, generally in 5 years; (4) resistant acidity and contamination resistance are not high, need strong clean-out system frequent cleaning (often working aloft has certain danger); (5) cost of conventional PVDF (pvdf) the fluorine carbon self-cleaning coating that uses is high, the difficulty of changing colour, and palpus hot setting, and troublesome poeration expends the energy again
Summary of the invention
technical problem to be solved by this invention is the deficiency that overcomes prior art, provides a kind of temperature tolerance, erosion resistance, good and with low cost, the normal temperature solidified building curtain wall aluminum veneer of contamination resistance to use chalking paint.
the present invention also will provide the preparation method of a kind of above-mentioned building curtain wall aluminum veneer with chalking paint simultaneously.
For solving above technical problem, the present invention takes following technical scheme:
A kind of building curtain wall aluminum veneer is used chalking paint, comprises first component, second component and the 3rd component of independent packaging; Wherein, First component is used to be coated in the aluminum veneer surface to form undercoat; Second component is used to be coated in said undercoat surface to form inter coat; The 3rd component is used to be coated in said inter coat surface to form finishing coat, and according to the present invention, second component comprises the A component of independent packaging and the B component of independent packaging:
said A component is mixed by following component: the mixed solvent of FEVE fluorocarbon resin 45% ~ 55%, white titanium pigment 15% ~ 25%, cobalt black 2% ~ 5%, 7/10 formula ratio, dispersion agent 0.2% ~ 0.5%, vinylformic acid levelling agent 0.05% ~ 0.15%, anti-settling agent 0.1% ~ 0.6%, organotin catalysts 0.1% ~ 0.3%; Said B component is mixed by following component: the mixed solvent of aliphatic isocyanates solidifying agent 7% ~ 10%, residue formula ratio; Said mixed solvent is mixed by toluene 5% ~ 10%, YLENE 2% ~ 5%, N-BUTYL ACETATE 8% ~ 10%; More than the percentage composition of each component with the weight of A component and B component be 100% to calculate; Wherein, said dispersion agent is acid dispersion agent; Said anti-settling agent is a wilkinite.
Above-mentioned building curtain wall aluminum veneer is to prepare first component, second component and the 3rd component respectively with the preparation method of chalking paint, and wherein the preparation of second component comprises the preparation of A component and the preparation of B component;
The preparation method of A component is following:
(1), gets the FEVE fluorocarbon resin of 40% formula ratio; Under 500 ~ 700 rev/mins of stirrings, add the mixed solvent of 7/10 formula ratio, the dispersion agent of formula ratio, the anti-settling agent of formula ratio, the white titanium pigment of formula ratio and the cobalt black pigment of formula ratio successively, get premix;
(2), the premix of step (1) gained is transferred in the shredder, this premix is ground, to the mixed solution that obtains solid particulate fineness≤20 micron;
(3), stir with 600 rev/mins rotating speed mixed solution step (2) gained; And in this mixed solution, add remaining FEVE fluorocarbon resin, the vinylformic acid levelling agent of formula ratio, the organotin catalysts of formula ratio successively; With remaining mixed solvent adjustment viscosity of mixed liquid to 70 ± 25 ℃/stormer viscosity of 5KU/ meter, and under 300 ~ 400 rev/mins rotating speed, continue to stir 8 ~ 12 minutes;
(4), to use the aperture be that 50 microns filter bag filters the mixed solution through step (3), filtrating is said building curtain wall aluminum veneer with the A component in chalking paint second component;
The preparation method of B component is following:
Aliphatic isocyanates solidifying agent and remaining mixed solvent that formula ratio is got in
mix; Gained mixed solution use aperture is that 10 microns filter bag filters, and filtrating is said building curtain wall aluminum veneer with the B component in chalking paint second component.
Because the enforcement of above technical scheme, the present invention compared with prior art has following advantage:
Adopting the FEVE fluorocarbon resin of hydroxyl in second component of
building curtain wall aluminum veneer use of the present invention chalking paint is basic filmogen; Each C-C key in the fluorocarbon resin molecular linkage is all tightly surrounded by the fluorine atom of screw type three-dimensional arrangement; This molecular structure can be resisted ultraviolet Degradation or the infringement of other medium; Make coating demonstrate good weather resistance and weathering resistance, simultaneously, the oxygen permeability coefficient of fluorocarbon resin is extremely low; Can prevent the corrosion of ground, thereby also improve the erosion resistance of coating; In addition, adopt the FEVE fluorocarbon resin as main film forming substance, coating can be cured at normal temperatures, energy-conservation saving of labor has reduced the execution of coating cost.Chalking paint prescription of the present invention is reasonable, and the preparation method is simple, can play good protective effect to aluminum veneer.
Embodiment
Second component of below selecting to be used to form in specific first component (being priming paint) and specific the 3rd component (being finish paint) and the chalking paint of the present invention inter coat is carried out supporting, and the application with chalking paint is elaborated to building curtain wall aluminum veneer of the present invention:
It is (by weight percentage) that building curtain wall aluminum veneer of the present invention uses the prescription of first component of chalking paint:
Saturated polyester resin 45% ~ 55%
Aminoresin 4% ~ 6%
Epoxy phosphate ester 1% ~ 1.5%
Calcium ion-exchanged type rust-stabilising pigment 5% ~ 10%
White titanium pigment 10% ~ 15%
Kaolin 5% ~ 10%
Dispersion agent 0.5% ~ 1%
Silicon titanium or silicon zirconium coupling agent 0.5% ~ 2%
Anti-settling agent 0.1% ~ 0.3%
S-150 aromatic hydrocarbon solvent 5% ~ 10%
butyl glycol ether 5% ~ 10%.
In the above-mentioned prescription, saturated polyester resin is optional uses that sea wind is marked vibrin that the trade mark of chemical Science and Technology Ltd. production and selling is FB8131 or the trade mark of Shanghai, Shanghai clean worker raw material ltd production and selling is the vibrin of K668A; Aminoresin can be selected the CYMEL 303 of U.S. cyanogen secret service industry ltd production and selling for use; Said calcium ion-exchanged type rust-stabilising pigment can be selected the SHIELDEX C 303 of W. R. Grace & Co's production and selling for use; Said white titanium pigment can be selected the R-960 Rutile type Titanium Dioxide of E.I.Du Pont Company's production and selling for use; Said dispersion agent can be selected the ANTI-TERRA U of German BYK company production and selling for use; Its chemical constitution is the mixed solution of unsaturated polyamine-acyl-amine salt and lower molecular weight acid esters; Can improve the wettability of pigment, reduce the process of lapping required time and colo(u)rant dispersion is got more stable; The Tyzor AA or the Tyzor NPZ of the optional MOAP 1306 of said coupling agent, E.I.Du Pont Company's production and selling with Shanghai More's chemical industry ltd production and selling; It is the aerosil of Aerosil 200 that said anti-settling agent can be selected the trade mark of German Degussa Corporation production and selling for use; Said epoxy phosphate ester can be selected the ETERKYD 490P-B-72 or the homemade epoxy phosphate ester of Taiwan Changxing Chemical Industry Co Ltd production and selling for use;
The method of self-control epoxy phosphate ester is following:
take by weighing epoxy resin, propyl carbinol and massfraction respectively by weight 1:0.84:0.41 is 85% phosphoric acid; Earlier epoxy resin, propyl carbinol are added and have in the reactor drum of whipping appts and temperature control unit, cause epoxy resin under stirring and dissolve fully; Under 300 ~ 400 rev/mins agitation condition, phosphoric acid is slowly added in the above-mentioned reaction system, and the temperature of control reaction system is 40 ℃ ~ 50 ℃; Stir after 1 hour, mixing speed is risen to 700 ~ 800 rev/mins, continue to stir 20 minutes; Then, make reaction system be cooled to normal temperature naturally, obtain solid content and be about 60% self-control epoxy phosphate ester.
Building curtain wall aluminum veneer of the present invention prepares with first component of chalking paint as follows:
(1), gets the saturated polyester resin of 40% formula ratio; Under 500 ~ 700 rev/mins of stirrings, add the S-150 aromatic hydrocarbon solvent of 30% formula ratio, the butyl glycol ether of formula ratio, the dispersion agent of formula ratio, the anti-settling agent of formula ratio, the white titanium pigment of formula ratio, the kaolin of formula ratio and the calcium ion-exchanged type rust-stabilising pigment of formula ratio successively; High-speed stirring 20 ~ 30 minutes under 1800 ~ 2200 rev/mins condition then, premix;
(2), step (1) gained premix is transferred in the shredder, this premix is ground, to the mixed solution that obtains solid particulate fineness≤20 micron;
(3), stir with 600 rev/mins rotating speed mixed solution step (2) gained; And in this mixed solution, add remaining saturated polyester resin, the aminoresin of formula ratio, the epoxy phosphate ester of formula ratio, the silicon titanium or the silicon zirconium coupling agent of formula ratio successively; With remaining S-150 aromatic hydrocarbon solvent adjustment viscosity of mixed liquid to 120 second/25 ℃/FORD#4 cup, and under 300 ~ 400 rev/mins rotating speed, continue stirring 8 ~ 12 minutes;
(4), to use the aperture be that 50 microns filter bag filters the mixed solution through step (3), filtrating is first component of said building curtain wall aluminum veneer with chalking paint;
Building curtain wall aluminum veneer of the present invention constitutes (by weight percentage) with second component of chalking paint by following component:
FEVE fluorocarbon resin 45% ~ 55%
White titanium pigment 15% ~ 25%
Cobalt black 2% ~ 5%
Anti-settling agent 0.1% ~ 0.6%
Dispersion agent 0.2% ~ 0.5%
Toluene 5% ~ 10%
YLENE 2% ~ 5%
N-BUTYL ACETATE 8% ~ 10%
Vinylformic acid levelling agent 0.05% ~ 0.15%
Organotin catalysts 0.1% ~ 0.3%
Aliphatic isocyanates solidifying agent 7% ~ 10%
wherein; Toluene, YLENE and N-BUTYL ACETATE constitute mixed solvent; This mixed solvent of aliphatic isocyanates solidifying agent and 3/10 formula ratio constitutes the B component of independent packaging, and the mixed solvent of other materials and remaining 7/10 formula ratio constitutes the A component of independent packaging, A component and the supporting use of B component; Both deposit separately, both are mixed before the construction again.
In
above-mentioned prescription; The FEVE fluorocarbon resin be a kind of in aromatic hydrocarbons, ester class or ketones solvent the copolymer resins of soluble fluoroolefin and vinyl ether; Greater than 15% for well, specifically can select the Lumiflon series fluorocarbon resin (like LF-552 or LF-600X) of Japan AGC company production and selling, the ZEFFLE GK-570 of Daikin company production and selling or the JF-3X of Shanghai Sanaifu New Material Co., Ltd's production and selling with the mass content of fluorine for use; It is the wilkinite of SD-2 that said anti-settling agent can be selected the trade mark of U.S. Ying Geerhade company (Engelhard) production and selling for use; Said dispersion agent is the acid dispersion agent that contains acetic acid or carboxylate radical etc., specifically can select for use the BYK-110 of German BYK company production and selling or Japanese nanmu to change into the DISPARLON 2150 that ltd produces; The agent of said vinylformic acid levelling can be selected the BYK350 or the BYK355 of German BYK company production and selling for use; Said aliphatic isocyanates solidifying agent can be selected the N-3390 solidifying agent of Bayer A.G's production and selling for use.
Building curtain wall aluminum veneer of the present invention is divided into the preparation of A component and preparation two portions of B component with the preparation of second component of chalking paint, and the preparation method of A component is following:
(1), gets the FEVE fluorocarbon resin of 40% formula ratio; Under 500 ~ 700 rev/mins of stirrings, add the mixed solvent of 7/10 formula ratio, the dispersion agent of formula ratio, the anti-settling agent of formula ratio, the white titanium pigment of formula ratio and the cobalt black pigment of formula ratio successively, get premix;
(2), the premix of step (1) gained is transferred in the shredder, this premix is ground, to the mixed solution that obtains solid particulate fineness≤20 micron;
(3), stir with 600 rev/mins rotating speed mixed solution step (2) gained; And in this mixed solution, add remaining FEVE fluorocarbon resin, the vinylformic acid levelling agent of formula ratio, the organotin catalysts of formula ratio successively; With rest parts mixed solvent adjustment viscosity of mixed liquid to 70 ± 25 ℃/stormer viscosity of 5KU/ meter, and under 300 ~ 400 rev/mins rotating speed, continue to stir 8 ~ 12 minutes;
(4), to use the aperture be that 50 microns filter bag filters the mixed solution through step (3), filtrating is said building curtain wall aluminum veneer with the A component in chalking paint second component;
The preparation method of the B component in said second component is following:
get the aliphatic isocyanates solidifying agent of formula ratio and the mixed solvent of about 3/10 formula ratio of remainder mixes; Gained mixed solution use aperture is that 10 microns filter bag filters, and filtrating is said building curtain wall aluminum veneer with the B component in chalking paint second component.
Building curtain wall aluminum veneer of the present invention constitutes (by weight percentage) with the 3rd component of chalking paint by following component:
FEVE fluorocarbon resin 60% ~ 70%
Silicone resin 5% ~ 10%
Vinylformic acid levelling agent 0.05% ~ 0.1%
Organosilicon flow agent 0.1% ~ 0.3%
Benzotriazole category ultraviolet absorbers 0.3% ~ 0.8%
Hindered amine light stabilizer 0.3% ~ 0.8%
Organotin catalysts 0.1% ~ 0.3%
N-BUTYL ACETATE 10% ~ 15%
YLENE 10% ~ 15%
Aliphatic isocyanates solidifying agent 9% ~ 13%;
wherein; N-BUTYL ACETATE and YLENE constitute mixed solvent; This mixed solvent of aliphatic isocyanates solidifying agent and 1/5 formula ratio constitutes the Y component of independent packaging, and the mixed solvent of other materials and remaining 4/5 formula ratio constitutes the X component of independent packaging, X component and the supporting use of Y component; Both deposit separately, both are mixed before the construction again.
In
above-mentioned prescription, silicone resin is selected the Protect 5001 of German Di Gao chemical company (TEGO) production and selling for use; Said organosilicon flow agent can be selected the BYK310 or the BYK306 of German BYK company production and selling for use; Said benzotriazole category ultraviolet absorbers can be selected the Tinuvin 1130 of vapour crust (China) ltd production and selling for use; Said hindered amine light stabilizer can be selected the Tinuvin 292 of vapour crust (China) ltd production and selling for use.The manufacturer that all the other components are specifically selected for use and the trade mark can be referring to the prescription introductions of second component.
Building curtain wall aluminum veneer of the present invention is divided into the preparation of X component and preparation two portions of Y component with the preparation of the 3rd component of chalking paint, and the preparation method of X component is following:
(1), gets the FEVE fluorocarbon resin of formula ratio; Under 500 ~ 700 rev/mins agitation condition, add the silicone resin of formula ratio, the vinylformic acid levelling agent of formula ratio, the organosilicon flow agent of formula ratio, the benzotriazole category ultraviolet absorbers of formula ratio, the hindered amine light stabilizer of formula ratio, the organotin catalysts of formula ratio, the mixed solvent of 4/5 formula ratio successively; Viscosity to 65 ± 25 ℃/stormer viscosity of the 5KU/ meter of adjustment mixed solution, and under 300 ~ 400 rev/mins rotating speed, continue to stir 8 ~ 12 minutes;
(2), to use the aperture be that 10 microns filter bag filters the mixed solution through step (1), filtrating is said building curtain wall aluminum veneer with the X component in chalking paint the 3rd component;
The preparation method of the Y component in said the 3rd component is following:
get the aliphatic isocyanates solidifying agent of formula ratio and the mixed solvent of about 1/5 formula ratio mixes; Gained mixed solution use aperture is that 10 microns filter bag filters, and filtrating is said building curtain wall aluminum veneer with the Y component in chalking paint the 3rd component.
Building curtain wall aluminum veneer of the present invention is coated in the surface of aluminium alloy plate with first component of chalking paint, and the preparation condition of filming is following:
Ground: chromium is handled aluminium alloy plate
Application viscosity: 90 ± 5 seconds/FORD#4 cup/normal temperature
Primary coat bed thickness: 8 ± 2 μ m
Time of repose: 30-50 second/normal temperature
Drying conditions: 234 ℃ * 100 seconds (plate temperature)
Application mode: roller coating application
Thinner: S-150 aromatic hydrocarbon solvent/butyl glycol ether=1:1
The formed undercoat of first component is carried out performance test, and test result is shown in table 1:
The performance of table 1 undercoat
* hardness test standard: GB/T6739-96
* sticking power testing standard: GB/T 9286-98
* Impact Test standard: GB/T 1732-93
* solvent resistance test standard: GB/T 23989-2009
* anti-boiling water testing standard: GB/T 1733-93
* buckling test testing standard: GB/T13448-2006
The preparation condition of filming of second, third component of the present invention is following:
Substrate: the aluminium alloy base plate that has been coated with undercoat
Application viscosity: 20 ± 3 seconds/be coated with #4 cup/normal temperature
Inter coat is thick: 35 ± 5 μ m, finishing coat is thick: 20 ± 5 μ m
Time of repose: 5-10 minute/normal temperature
Drying conditions: 80 ℃ * 30 minutes
Application mode: aerial spraying
Thinner: N-BUTYL ACETATE
The construction pitch time of
finishing coat and inter coat: the inter coat baking is cooled to normal temperature or seasoning sprays the 3rd component coating after 24 hours.
The formed compound coating of three components is carried out performance test, and test result is shown in table 2:
The performance of table 2 compound coating
* chemical resistant properties testing standard: GB/T 1763-1979
* solvent resistance test standard: GB/T 23989-2009
* QUV artificial weathering testing standard: GB/T 1706
building curtain wall aluminum veneer of the present invention is specially adapted to roll up aluminum screen wall field with chalking paint.
are done further detailed explanation below in conjunction with concrete embodiment to the present invention, but are not limited to these embodiment.
Embodiment 1
Using the prescription of first component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
FB8131 vibrin 520
CYMEL 303 aminoresin 44
ETERKYD 490P-B-72 epoxy phosphate ester 12
SHIELDEX C 303 calcium ion-exchanged rust-stabilising pigments 80
White titanium pigment R-960 130
Kaolin ASP170 70
Dispersant B YK ANTI-TERRA U 10
Coupling agent MOAP 1,306 10
Coupling agent TYZOL AA-75 7
AEROSIL 200 aerosils 2
S-150 aromatic hydrocarbon solvent 60
Butyl glycol ether 60
The first component coating is coated in chromium handles on the aluminium alloy plate, step is following:
(1), the chromium of getting 1mm * 200mm * 300mm handles aluminium alloy plate, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the line rod preparing device of filming that the first component coating is coated in through step (1) aluminium alloy treated plate surface, make build and be 5 ~ 10 microns undercoat (drying conditions PMT=234 ℃ * 100 seconds);
Prepared undercoat is carried out performance test, and the result is following:
Pencil hardness: H
Sticking power (GB/T 9286-98): 0 grade
T bends characteristic: 0T;
MEK wiping: 100 times;
Using the prescription of second component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
FEVE fluorocarbon resin (GK-570) 520
White titanium pigment R-960 200
Cobalt black 5
Modified alta-mud SD-2 (Elementies) 3
BYK-110 dispersion agent 11
Vinylformic acid levelling agent BYK-350 1
Organotin catalysts 2
YLENE 30
Toluene 57
N-BUTYL ACETATE 88
Solidifying agent N-3390 83
In proportion second component is prepared into A component and B component respectively, during construction A, the mixing of B two components is stirred;
Using the prescription of the 3rd component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
FEVE fluoro-resin (GK-570) 625
Silicone resin TEGO PROTECT 5,001 60
Vinylformic acid levelling agent BYK-355 0.5
Organosilicon flow agent BYK-310 2
Benzotriazole category ultraviolet absorbers Tinuvin 1,130 5
Hindered amine light stabilizer Tinuvin 292 5
Organotin catalysts (DBTDL) 2
N-BUTYL ACETATE 100
YLENE 100.5
Solidifying agent N-3390 100
are prepared into X component and Y component respectively with the 3rd component in proportion, during construction X, the mixing of Y two components are stirred.
The coating of above-mentioned prepared second component and the 3rd component is coated on the aluminium alloy plate of coating base coat, step is following:
(1), get the aluminium alloy plate of the coating base coat of 1mm * 200mm * 300mm, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the aerial spraying construction, on the surface of step (1) gained aluminium alloy plate, normal temperature was placed 24 hours, made to form the inter coat of build between 25 ~ 35 microns with the paint spay-coating of second component;
(3), adopt the aerial spraying construction, on the surface of step (2) gained aluminium alloy plate, Air drying made to form the finishing coat of build between 15 ~ 30 microns more than 7 days with the paint spay-coating of the 3rd component; So far, aluminum alloy surface has formed trilaminar compound coating.
Prepared compound coating is carried out performance test, and the result is shown in table 3:
The performance of table 3 embodiment 1 gained compound coating
Embodiment 2
Using the prescription of first component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
K668A vibrin 520
CYMEL 303 aminoresin 44
Epoxy phosphate ester 13
SHIELDEX C 303 calcium ion-exchanged type rust-stabilising pigments 80
White titanium pigment R-960 130
Kaolin ASP170 70
Dispersant B YK ANTI-TERRA U 10
Coupling agent MOAP 1,306 10
Coupling agent TYZOL NPZ 8
Aerosil anti-settling agent AEROSIL 200 2
S-150 aromatic hydrocarbon solvent 56
Butyl glycol ether 60
In the present embodiment, epoxy phosphate ester is (units by weight) for self-control epoxy phosphate ester, its prescription:
Propyl carbinol 5.6
E-51 epoxy resin 6.7
Phosphoric acid (massfraction 85%) 2.7
Its preparation method is following:
One 200 liters plastic tank is got in
, adds propyl carbinol, the epoxy resin of formula ratio successively, under 300 ~ 400 rev/mins agitation condition, stirs to dissolve fully to epoxy resin in 20 minutes; Slowly add phosphoric acid; Control interpolation speed, controlled temperature is not higher than 50 ° of C, treats that phosphoric acid adds the continued that finishes and stirred 1 hour; Naturally cool to normal temperature, add a cover placement and spend the night subsequent use.
The prepared first component coating of present embodiment is coated in chromium handles on the aluminium alloy plate, step is following:
(1), the chromium of getting 1mm * 200mm * 300mm handles aluminium alloy plate, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the line rod preparing device of filming that the first component coating is coated in through step (1) aluminium alloy treated plate surface, make build and be 5 ~ 10 microns undercoat (drying conditions PMT=234 ℃ * 100 seconds);
Prepared undercoat is carried out performance test, and the result is following:
Pencil hardness: H
Sticking power (GB/T 9286-98): 0 grade
T bends characteristic: 0T;
MEK wiping: 100 times;
Using the prescription of second component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
FEVE fluorocarbon resin JF-3X 530
White titanium pigment R-960 200
Cobalt black 3
Modified alta-mud SD-2 (Elementies) 3
DISPARLON 2150 dispersion agents 12
Vinylformic acid levelling agent BYK-350 2
YLENE 32
Toluene 55
N-BUTYL ACETATE 80
Organotin catalysts (DBTDL) 3
Solidifying agent N-3390 80
In proportion second component is prepared into A component and B component respectively, during construction A, the mixing of B two components is stirred;
Using the prescription of the 3rd component of chalking paint according to the building curtain wall aluminum veneer of present embodiment is (units by weight):
FEVE fluorocarbon resin (GK-570) 625
Silicone resin TEGO PROTECT 5,001 60
Vinylformic acid levelling agent BYK-355 0.5
Organosilicon flow agent BYK-310 2
Benzotriazole category ultraviolet absorbers Tinuvin 1,130 5
Hindered amine light stabilizer Tinuvin 292 5
Organotin catalysts (DBTDL) 2
N-BUTYL ACETATE 100
YLENE 100.5
Solidifying agent N-3390 100
are prepared into X component and Y component respectively with the 3rd component in proportion, during construction X, the mixing of Y two components are stirred.
The coating of above-mentioned prepared second component and the 3rd component is coated on the aluminium alloy plate of coating base coat, step is following:
(1), get the aluminium alloy plate of the coating base coat of 1mm * 200mm * 300mm, with Virahol (IPA) with its surperficial wiped clean;
(2), adopt the aerial spraying construction, on the surface of step (1) gained aluminium alloy plate, normal temperature was placed 24 hours, made to form the inter coat of build between 25 ~ 35 microns with the paint spay-coating of second component;
(3), adopt the aerial spraying construction, on the surface of step (2) gained aluminium alloy plate, Air drying made to form the finishing coat of build between 15 ~ 30 microns more than 7 days with the paint spay-coating of the 3rd component; So far, aluminum alloy surface has formed trilaminar compound coating.
Prepared compound coating is carried out performance test, and the result is shown in table 4:
The performance of table 4 embodiment 2 gained compound coatings
Among
above embodiment; Because this building curtain wall aluminum veneer adopts vibrin and aminoresin as filmogen with first component of chalking paint, adopts silicon titanium or silicon zirconium type coupling agent that undercoat is greatly improved the sticking power of aluminum veneer; Second component makes coating demonstrate good weather resistance, weathering resistance and erosion resistance because employing FEVE fluorocarbon resin is a filmogen; The 3rd component is utilized fluorine silicon inierpeneirating network structure owing to adopt FEVE fluorocarbon resin and silicone resin as filmogen, reduces film coated surface tension force, has improved the hydrophobicity and the anti-stain characteristic of coatingsurface, and the coatingsurface dirt is cleaned easily.
More than the present invention has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (8)
1. a building curtain wall aluminum veneer is used chalking paint, comprises first component, second component and the 3rd component of independent packaging; Wherein, First component is used to be coated in the aluminum veneer surface to form undercoat; Second component is used to be coated in said undercoat surface to form inter coat; The 3rd component is used to be coated in said inter coat surface to form finishing coat, and it is characterized in that: said second component comprises the A component of independent packaging and the B component of independent packaging:
Said A component is mixed by following component: the mixed solvent of FEVE fluorocarbon resin 45% ~ 55%, white titanium pigment 15% ~ 25%, cobalt black 2% ~ 5%, 7/10 formula ratio, dispersion agent 0.2% ~ 0.5%, vinylformic acid levelling agent 0.05% ~ 0.15%, anti-settling agent 0.1% ~ 0.6%, organotin catalysts 0.1% ~ 0.3%; Said B component is mixed by following component: the mixed solvent of aliphatic isocyanates solidifying agent 7% ~ 10%, residue formula ratio; Said mixed solvent is mixed by toluene 5% ~ 10%, YLENE 2% ~ 5%, N-BUTYL ACETATE 8% ~ 10%; More than the percentage composition of each component with the weight of A component and B component be 100% to calculate; Wherein, said dispersion agent is acid dispersion agent; Said anti-settling agent is a wilkinite.
2. building curtain wall aluminum veneer according to claim 1 is used chalking paint; It is characterized in that: by weight percentage, said first component is mixed by following component: saturated polyester resin 45% ~ 55%, aminoresin 4% ~ 6%, epoxy phosphate ester 1% ~ 1.5%, calcium ion-exchanged type rust-stabilising pigment 5% ~ 10%, white titanium pigment 10% ~ 15%, kaolin 5% ~ 10%, dispersion agent 0.5% ~ 1%, silicon titanium or silicon zirconium type coupling agent 0.5% ~ 2%, anti-settling agent 0.1% ~ 0.3%, S-150 aromatic hydrocarbon solvent 5% ~ 10%, butyl glycol ether 5% ~ 10%; Wherein, said dispersion agent is polyamine-acyl-amine type dispersion agent; Said anti-settling agent is an aerosil.
3. building curtain wall aluminum veneer according to claim 1 is used chalking paint, it is characterized in that: said the 3rd component comprises the X component of independent packaging and the Y component of independent packaging:
Said X component is mixed by following component: the mixed solvent of FEVE fluorocarbon resin 60% ~ 70%, silicone resin 5% ~ 10%, vinylformic acid levelling agent 0.05% ~ 0.1%, organosilicon flow agent 0.1% ~ 0.3%, benzotriazole category ultraviolet absorbers 0.3% ~ 0.8%, hindered amine light stabilizer 0.3% ~ 0.8%, organotin catalysts 0.1% ~ 0.3%, 4/5 formula ratio; Said Y component is mixed by following component: the mixed solvent of aliphatic isocyanates solidifying agent 9% ~ 13%, residue formula ratio; Said mixed solvent is mixed by N-BUTYL ACETATE 10% ~ 15%, YLENE 10% ~ 15%; More than the percentage composition of each component with the weight of X component and Y component be 100% to calculate.
4. use chalking paint according to claim 1 or 3 described building curtain wall aluminum veneers, it is characterized in that: the mass content of fluorine is greater than 15% in the said FEVE fluorocarbon resin.
5. a building curtain wall aluminum veneer as claimed in claim 1 prepares first component, second component and the 3rd component respectively with the preparation method of chalking paint, and it is characterized in that: the preparation of said second component comprises the preparation of A component and the preparation of B component;
The preparation method of said A component is following:
(1), gets the FEVE fluorocarbon resin of 40% formula ratio; Under 500 ~ 700 rev/mins of stirrings, add the mixed solvent of 7/10 formula ratio, the dispersion agent of formula ratio, the anti-settling agent of formula ratio, the white titanium pigment of formula ratio and the cobalt black pigment of formula ratio successively, get premix;
(2), the premix of step (1) gained is transferred in the shredder, this premix is ground, to the mixed solution that obtains solid particulate fineness≤20 micron;
(3), stir with 600 rev/mins rotating speed mixed solution step (2) gained; And in this mixed solution, add remaining FEVE fluorocarbon resin, the vinylformic acid levelling agent of formula ratio, the organotin catalysts of formula ratio successively; With remaining mixed solvent adjustment viscosity of mixed liquid to 70 ± 25 ℃/stormer viscosity of 5KU/ meter, and under 300 ~ 400 rev/mins rotating speed, continue to stir 8 ~ 12 minutes;
(4), to use the aperture be that 50 microns filter bag filters the mixed solution through step (3), filtrating is said building curtain wall aluminum veneer with the A component in chalking paint second component;
The preparation method of said B component is following:
Aliphatic isocyanates solidifying agent and the remaining mixed solvent of getting formula ratio mix, and gained mixed solution use aperture is that 10 microns filter bag filters, and filtrating is said building curtain wall aluminum veneer with the B component in chalking paint second component.
6. preparation method according to claim 5; It is characterized in that: by weight percentage, said first component comprises following component: saturated polyester resin 45% ~ 55%, aminoresin 4% ~ 6%, epoxy phosphate ester 1% ~ 1.5%, calcium ion-exchanged type rust-stabilising pigment 5% ~ 10%, white titanium pigment 10% ~ 15%, kaolin 5% ~ 10%, dispersion agent 0.5% ~ 1%, silicon titanium or silicon zirconium type coupling agent 0.5% ~ 2%, anti-settling agent 0.1% ~ 0.3%, S-150 aromatic hydrocarbon solvent 5% ~ 10%, butyl glycol ether 5% ~ 10%;
The preparation method of described first component is following:
(1), gets the saturated polyester resin of 40% formula ratio; Under 500 ~ 700 rev/mins of stirrings, add the S-150 aromatic hydrocarbon solvent of 30% formula ratio, the butyl glycol ether of formula ratio, the dispersion agent of formula ratio, the anti-settling agent of formula ratio, the white titanium pigment of formula ratio, the kaolin of formula ratio and the calcium ion-exchanged type rust-stabilising pigment of formula ratio successively; High-speed stirring 20 ~ 30 minutes under 1800 ~ 2200 rev/mins condition then, premix;
(2), step (1) gained premix is transferred in the shredder, this premix is ground, to the mixed solution that obtains solid particulate fineness≤20 micron;
(3), stir with 600 rev/mins rotating speed mixed solution step (2) gained; And in this mixed solution, add remaining saturated polyester resin, the aminoresin of formula ratio, the epoxy phosphate ester of formula ratio, the silicon titanium or the silicon zirconium coupling agent of formula ratio successively; With remaining S-150 aromatic hydrocarbon solvent adjustment viscosity of mixed liquid to 120 second/25 ℃/FORD#4 cup, and under 300 ~ 400 rev/mins rotating speed, continue stirring 8 ~ 12 minutes;
(4), to use the aperture be that 50 microns filter bag filters the mixed solution through step (3), filtrating is first component of said building curtain wall aluminum veneer with chalking paint.
7. preparation method according to claim 5 is characterized in that: said the 3rd component comprises the X component of independent packaging and the Y component of independent packaging:
Said X component is mixed by following component: the mixed solvent of FEVE fluorocarbon resin 60% ~ 70%, silicone resin 5% ~ 10%, vinylformic acid levelling agent 0.05% ~ 0.1%, organosilicon flow agent 0.1% ~ 0.3%, benzotriazole category ultraviolet absorbers 0.3% ~ 0.8%, hindered amine light stabilizer 0.3% ~ 0.8%, organotin catalysts 0.1% ~ 0.3%, 4/5 formula ratio; Said Y component is mixed by following component: the mixed solvent of aliphatic isocyanates solidifying agent 9% ~ 13%, residue formula ratio; Said mixed solvent is mixed by N-BUTYL ACETATE 10% ~ 15%, YLENE 10% ~ 15%; More than the percentage composition of each component with the weight of X component and Y component be 100% to calculate;
The preparation of said the 3rd component comprises the preparation of X component and the preparation of Y component;
The preparation method of said X component is following:
(1), gets the FEVE fluorocarbon resin of formula ratio; Under 500 ~ 700 rev/mins agitation condition, add the silicone resin of formula ratio, the vinylformic acid levelling agent of formula ratio, the organosilicon flow agent of formula ratio, the benzotriazole category ultraviolet absorbers of formula ratio, the hindered amine light stabilizer of formula ratio, the organotin catalysts of formula ratio, the mixed solvent of 4/5 formula ratio successively; Viscosity to 65 ± 25 ℃/stormer viscosity of the 5KU/ meter of adjustment mixed solution, and under 300 ~ 400 rev/mins rotating speed, continue to stir 8 ~ 12 minutes;
(2), to use the aperture be that 10 microns filter bag filters the mixed solution through step (1), filtrating is the X component in said the 3rd component;
The preparation method of said Y component is following:
Aliphatic isocyanates solidifying agent and the remaining mixed solvent of getting formula ratio mix, and gained mixed solution use aperture is that 10 microns filter bag filters, and filtrating is the Y component in said the 3rd component.
In the claim 1 to 3 the described building curtain wall aluminum veneer of each claim with the application of chalking paint in volume aluminum screen wall.
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| CN103045065A (en) * | 2013-01-08 | 2013-04-17 | 海洋化工研究院有限公司 | Fluorocarbon paint for cabinet and preparation method |
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| CN107523177A (en) * | 2017-08-22 | 2017-12-29 | 智慧超洋建设工程股份有限公司 | A kind of anticorrosive paint for building curtain wall |
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| CN103847208A (en) * | 2012-11-28 | 2014-06-11 | 辉旭微粉技术（上海）有限公司 | PVDF composite film preparation method |
| CN103045065A (en) * | 2013-01-08 | 2013-04-17 | 海洋化工研究院有限公司 | Fluorocarbon paint for cabinet and preparation method |
| CN106867374A (en) * | 2015-12-10 | 2017-06-20 | 浙江绍兴苏泊尔生活电器有限公司 | Anti-fouling coating and preparation method and application thereof |
| CN106867374B (en) * | 2015-12-10 | 2019-10-11 | 浙江绍兴苏泊尔生活电器有限公司 | Anti-fouling coating and preparation method and application thereof |
| CN107523177A (en) * | 2017-08-22 | 2017-12-29 | 智慧超洋建设工程股份有限公司 | A kind of anticorrosive paint for building curtain wall |
| TWI704195B (en) * | 2018-12-06 | 2020-09-11 | 盟鑫金屬股份有限公司 | Anti-corrosion fluorocarbon composition |
| CN110734691A (en) * | 2019-10-18 | 2020-01-31 | 华北理工大学 | coastal environment wooden ancient building waterproof anticorrosive paint and preparation method thereof |
| CN110922825A (en) * | 2019-12-11 | 2020-03-27 | 天津科瑞达涂料化工有限公司 | Weather-proof anticorrosive PVDF (polyvinylidene fluoride) fluorocarbon coating for special metal substrate |
| CN111703147A (en) * | 2020-06-29 | 2020-09-25 | 安徽福瑞尔铝业科技有限公司 | Heat-insulation aluminum veneer for building outer wall and manufacturing process thereof |
| CN113402916A (en) * | 2021-06-30 | 2021-09-17 | 谢立华 | Method for preparing special coating for gold steel porcelain coating |
| CN114086705A (en) * | 2021-12-22 | 2022-02-25 | 安徽福瑞尔铝业科技有限公司 | High-strength reinforced aluminum veneer for curtain wall and manufacturing process thereof |
| CN115029024A (en) * | 2022-06-25 | 2022-09-09 | 北京首创纳米科技有限公司 | Hydrophobic coating film of non-sticky yogurt, yogurt packaging material and application thereof |
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