CN104356914A - Solar back panel transparent polyurethane paint and preparation method thereof - Google Patents
Solar back panel transparent polyurethane paint and preparation method thereof Download PDFInfo
- Publication number
- CN104356914A CN104356914A CN201410702129.7A CN201410702129A CN104356914A CN 104356914 A CN104356914 A CN 104356914A CN 201410702129 A CN201410702129 A CN 201410702129A CN 104356914 A CN104356914 A CN 104356914A
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- China
- Prior art keywords
- transparent polyurethane
- polyurethane coating
- resin
- acrylic resin
- component
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- Granted
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003973 paint Substances 0.000 title abstract 5
- 239000004814 polyurethane Substances 0.000 title abstract 5
- 229920002635 polyurethane Polymers 0.000 title abstract 5
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 67
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 67
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 41
- 239000003960 organic solvent Substances 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims abstract description 16
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 10
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 230000002745 absorbent Effects 0.000 claims abstract description 5
- 239000002250 absorbent Substances 0.000 claims abstract description 5
- 239000011527 polyurethane coating Substances 0.000 claims description 62
- 239000011347 resin Substances 0.000 claims description 50
- 229920005989 resin Polymers 0.000 claims description 50
- 239000012948 isocyanate Substances 0.000 claims description 39
- 150000002513 isocyanates Chemical class 0.000 claims description 39
- 239000006096 absorbing agent Substances 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 35
- 239000013530 defoamer Substances 0.000 claims description 32
- 239000007787 solid Substances 0.000 claims description 18
- 125000002524 organometallic group Chemical group 0.000 claims description 16
- 239000012970 tertiary amine catalyst Substances 0.000 claims description 16
- 239000013638 trimer Substances 0.000 claims description 16
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002033 PVDF binder Substances 0.000 claims description 9
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims description 9
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 8
- -1 acryl Chemical group 0.000 claims description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 7
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 7
- 229960004418 trolamine Drugs 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- 239000012964 benzotriazole Substances 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229940043232 butyl acetate Drugs 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000005056 polyisocyanate Substances 0.000 abstract 2
- 229920001228 polyisocyanate Polymers 0.000 abstract 2
- 230000006750 UV protection Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 31
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- 230000003628 erosive effect Effects 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 150000003852 triazoles Chemical class 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to the technical field of solar cell back panels, particularly a solar back panel transparent polyurethane paint and a preparation method thereof. The transparent polyurethane paint is a double-component system. The component A is prepared from the following raw materials in parts by weight: 5-50 parts of acrylic resin, 30-70 parts of fluororesin, 10-20 parts of organic solvent, 1-3 parts of catalyst, 1-3 parts of ultraviolet absorbent and 1-2 parts of defoaming agent. The component B is an aliphatic polyisocyanate curing agent, and the aliphatic polyisocyanate curing agent comprises at least one of hexamethylene diisocyanate biuret, hexamethylene diisocyanate tripolymer and isophorone diisocyanate tripolymer. The components A and B are mixed according to the NCO/OH ratio of 0.9-1.2 to obtain the transparent polyurethane paint. The transparent polyurethane paint has the advantages of lower cost, accessible raw materials, excellent weather resistance, excellent corrosion resistance, excellent adhesive force, excellent ultraviolet resistance and excellent hydrolysis resistance.
Description
Technical field
The present invention relates to solar cell backboard technical field, be specifically related to a kind of sun power backboard transparent polyurethane coating and preparation method thereof.
Background technology
Solar cell backboard is positioned at the back side of solar panel, plays protection and supporting role, need have reliable insulativity, water preventing ability, ageing-resistant performance to cell piece.In recent years with the rise of photovoltaic industry, each company proposes various structure to solar photovoltaic cell backplane.The TPT type fabric backplanes that current domestic the most generally Du Pont produces, it is composited by upper and lower two-layer fluorine film (PVF or PVDF) and middle polyester layer (PET).Existing fluorine film dependence on import for a long time, expensive, be difficult to obtain.
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, the object of the present invention is to provide a kind of sun power backboard transparent polyurethane coating, this transparent polyurethane coating relative inexpensiveness, raw material is easy to get, degree domestic is high, has excellent weathering resistance, erosion resistance, sticking power, UV resistant and hydrolytic resistance.
Another object of the present invention is to the preparation method providing a kind of sun power backboard transparent polyurethane coating, this preparation method's technique is simple, and convenient operation and control, steady quality, production efficiency is high, can large-scale industrial production.
Object of the present invention is achieved through the following technical solutions: a kind of sun power backboard transparent polyurethane coating, and described transparent polyurethane coating is two Component Systems:
Wherein, component A comprises the raw material of following weight part:
Acrylic resin 5-50 part
Fluoro-resin 30-70 part
Organic solvent 10-20 part
Catalyzer 1-3 part
UV light absorber 1-3 part
Defoamer 1-2 part;
Component B is aliphatic polymeric isocyanate solidifying agent, and described aliphatic polymeric isocyanate solidifying agent comprises at least one in hexamethylene diisocyanate biruet, hexamethylene diisocyanate trimer and isophorone diisocyanate trimer;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Preferably, the mixture that is made up of with weight ratio 1:1.5-2.5 hexamethylene diisocyanate biruet and isophorone diisocyanate trimer of described aliphatic polymeric isocyanate solidifying agent; Or, the mixture that described aliphatic polymeric isocyanate solidifying agent is made up of with weight ratio 0.8-1.2:1 hexamethylene diisocyanate trimer and isophorone diisocyanate trimer; Or, the mixture that described aliphatic polymeric isocyanate solidifying agent is made up of with weight ratio 1:1.4-2.2:2-3 hexamethylene diisocyanate biruet, hexamethylene diisocyanate trimer and isophorone diisocyanate trimer.
Preferably, described component A comprises the raw material of following weight part:
Acrylic resin 10-40 part
Fluororesin 40-60 parts
Organic solvent 12-18 part
Catalyzer 1.5-2.5 part
UV light absorber 1.5-2.5 part
Defoamer 1.2-1.8 part.
More preferred, described component A comprises the raw material of following weight part:
Acrylic resin 25 parts
Fluoro-resin 50 parts
Organic solvent 15 parts
Catalyzer 2 parts
UV light absorber 2 parts
Defoamer 1.5 parts.
Transparent polyurethane coating of the present invention adopts fluoro-resin, fluoro-resin has good weathering resistance, resistance to ultraviolet, color inhibition and erosion resistance can improve the overall performance of backboard, but it is low to there is surface energy, surface hydrophobic, binding agent is not easy on fluoroplastics surface to launch, and is not easy the shortcoming with other plastic bonding.
Transparent polyurethane coating of the present invention by adopt acrylic resin, acrylic resin has the advantages such as good sticking power, ageing resistance, water tolerance, drying property, with fluoro-resin with the use of, fluorine coating sticking power can be solved low, the problem of not easily adhesion.And low price, convenient construction, greatly reduces backboard cost.
The present invention is by acrylic resin and the composite use of fluoro-resin, obtained transparent polyurethane coating had both had the good weathering resistance of fluoro-resin, resistance to ultraviolet, erosion resistance, hydrolytic resistance, while there is higher sticking power, the advantage such as the hardness also with urethane is high, good corrosion resistance, resistance to abrasive property are good, has widened the Application Areas of acrylic coating in photovoltaic back greatly.
Preferably, described acrylic resin is the acrylic resin of hydroxy functional groups.Described hydroxy functional groups does not comprise the aromatic functional groups of easy xanthochromia.The present invention is by adopting the acrylic resin of hydroxy functional groups, and obtained transparent polyurethane coating has the advantages such as good sticking power, ageing resistance, water tolerance, drying property.
Preferably, the solid content of described acrylic resin is 60%-70%.More preferred, described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of Macrynal SM510N, and its solidification amount is 60%; Or described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of CYTEC Macrynal SM515, and its solid content is 70%; Or described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of Macrynal SM2810, and its solidification amount is 75%; Or described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1215, and its solidification amount is 67%; Or described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1252, and its solidification amount is 65%; Or described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1753, and its solidification amount is 70%.The present invention is by adopting solid content to be the acrylic resin of 60%-70%, and obtained transparent polyurethane coating has good sticking power, ageing resistance, water tolerance and drying property.
Preferably, described fluoro-resin comprises FEVE resin and/or PVDF resin.More preferred, the mixture that described fluoro-resin is made up of with weight ratio 1:1.5-2.5 FEVE resin and PVDF resin.The present invention is by adopting FEVE resin and/or PVDF resin, and obtained transparent polyurethane coating has good weathering resistance, and resistance to ultraviolet, color inhibition and erosion resistance can improve the overall performance of backboard.
Preferably, described organic solvent comprises at least one in benzene,toluene,xylene, ethyl acetate, butylacetate, No. 100 solvent oils, No. 150 solvent oils, No. 200 solvent oils, acetone, butanone and pimelinketone.
Preferably, described catalyzer comprises tertiary amine catalyst and/or organometallic catalysts, tertiary amine catalyst comprises at least one in triethylenediamine, triethylamine and trolamine, and organometallic catalysts comprises stannous octoate and/or dibutyl tin laurate.More preferred, the mixture that described catalyzer is made up of with weight ratio 1:1.4-2.2 tertiary amine catalyst and organometallic catalysts; The mixture that described tertiary amine catalyst is made up of with weight ratio 0.8-1.2:1 triethylenediamine and trolamine; The mixture that described organometallic catalysts is made up of with weight ratio 1:2-3 stannous octoate and dibutyl tin laurate.The present invention is by adopting above-mentioned catalyzer, excellent catalytic effect, obtained transparent polyurethane coating good weatherability, superior performance.
Preferably, described UV light absorber comprises benzotriazole ultraviolet absorbent and/or phentriazine class UV light absorber.More preferred, the mixture that described UV light absorber is made up of with weight ratio 1.8-2.6:1 triazole class UV light absorber and phentriazine class UV light absorber.The present invention is by adopting benzotriazole ultraviolet absorbent and/or phentriazine class UV light absorber, and obtained transparent polyurethane coating ultraviolet radiation absorption is effective.
Preferably, described defoamer comprises organic silicon defoamer and/or acryl-based antifoaming agent.More preferred, the mixture that described defoamer is made up of with weight ratio 1:0.8-1.2 silicone based defoamer and acryl-based antifoaming agent.The present invention is by adopting silicone based defoamer and/or acryl-based antifoaming agent, obtained transparent polyurethane coating good weatherability.
Preferably, the solid content of described aliphatic polymeric isocyanate solidifying agent is 70%-90%.More preferred, described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N75, its solid content 75%; Or described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N 3390 BA/SN, its solid content 90%; Or described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur Z 4470 MPA/X, its solid content 70%.The present invention is the aliphatic polymeric isocyanate solidifying agent of 70%-90% by solid content, and solidification effect is good, obtained transparent polyurethane coating good weatherability, superior performance.
Another object of the present invention is achieved through the following technical solutions: a kind of preparation method of sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1000-2000r/min, dispersed with stirring 1-3h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 1-20min, stirring velocity 800-1500r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Beneficial effect of the present invention is: transparent polyurethane coating of the present invention adopts fluoro-resin, fluoro-resin has good weathering resistance, resistance to ultraviolet, color inhibition and erosion resistance can improve the overall performance of backboard, but it is low to there is surface energy, surface hydrophobic, binding agent is not easy on fluoroplastics surface to launch, and is not easy the shortcoming with other plastic bonding.
Transparent polyurethane coating of the present invention by adopt acrylic resin, acrylic resin has the advantages such as good sticking power, ageing resistance, water tolerance, drying property, with fluoro-resin with the use of, fluorine coating sticking power can be solved low, the problem of not easily adhesion.And low price, convenient construction, greatly reduces backboard cost.
The present invention is by acrylic resin and the composite use of fluoro-resin, obtained transparent polyurethane coating had both had the good weathering resistance of fluoro-resin, resistance to ultraviolet, erosion resistance, hydrolytic resistance, while there is higher sticking power, the advantage such as the hardness also with urethane is high, good corrosion resistance, resistance to abrasive property are good, has widened the Application Areas of acrylic coating in photovoltaic back greatly.Preparation method's technique of the present invention is simple, and convenient operation and control, steady quality, production efficiency is high, can large-scale industrial production.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment 1
A kind of sun power backboard transparent polyurethane coating, described transparent polyurethane coating is two Component Systems:
Wherein, component A is the raw material of following weight part:
Acrylic resin 5 parts
Fluoro-resin 30 parts
Organic solvent 10 parts
Catalyzer 1 part
UV light absorber 1 part
Defoamer 1 part;
Component B is aliphatic polymeric isocyanate solidifying agent, and described aliphatic polymeric isocyanate solidifying agent is hexamethylene diisocyanate biruet;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Described acrylic resin is the acrylic resin of hydroxy functional groups.
Described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of Macrynal SM510N, and its solidification amount is 60%.
Described fluoro-resin is FEVE resin.
Described organic solvent is toluene.
Described catalyzer is tertiary amine catalyst, the mixture that described tertiary amine catalyst is made up of with weight ratio 1:1 triethylenediamine and trolamine;
Described UV light absorber is benzotriazole ultraviolet absorbent.
Described defoamer is silicone based defoamer.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N75, its solid content 75%.
A preparation method for sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1000r/min, dispersed with stirring 1h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 1min, stirring velocity 800r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Embodiment 2
A kind of sun power backboard transparent polyurethane coating, described transparent polyurethane coating is two Component Systems:
Wherein, component A is the raw material of following weight part:
Acrylic resin 10 parts
Fluororesin 40 part
Organic solvent 12 parts
Catalyzer 1.5 parts
UV light absorber 1.5 parts
Defoamer 1.2 parts;
Component B is aliphatic polymeric isocyanate solidifying agent, and described aliphatic polymeric isocyanate solidifying agent is hexamethylene diisocyanate trimer;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Described acrylic resin is the acrylic resin of hydroxy functional groups.
Described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of CYTEC Macrynal SM515, and its solid content is 70%.
Described fluoro-resin is PVDF resin.
Described organic solvent is ethyl acetate.
Described catalyzer is organometallic catalysts, the mixture that described organometallic catalysts is made up of with weight ratio 1:2 stannous octoate and dibutyl tin laurate.
Described UV light absorber is phentriazine class UV light absorber.
Described defoamer is acryl-based antifoaming agent.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N 3390 BA/SN, its solid content 90%.
A preparation method for sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1200r/min, dispersed with stirring 1.5h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 5min, stirring velocity 1000r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Embodiment 3
A kind of sun power backboard transparent polyurethane coating, described transparent polyurethane coating is two Component Systems:
Wherein, component A is the raw material of following weight part:
Acrylic resin 25 parts
Fluoro-resin 50 parts
Organic solvent 15 parts
Catalyzer 2 parts
UV light absorber 2 parts
Defoamer 1.5 parts;
Component B is aliphatic polymeric isocyanate solidifying agent, and described aliphatic polymeric isocyanate solidifying agent is isophorone diisocyanate trimer;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Described acrylic resin is the acrylic resin of hydroxy functional groups.
Described acrylic resin is the model that Qing Te company of the U.S. produces is the acrylic resin of Macrynal SM2810, and its solidification amount is 70%.
The mixture that described fluoro-resin is made up of with weight ratio 1:1.5 FEVE resin and PVDF resin.
Described organic solvent is No. 100 solvent oils.
The mixture that described catalyzer is made up of with weight ratio 1:1.4 tertiary amine catalyst and organometallic catalysts; The mixture that described tertiary amine catalyst is made up of with weight ratio 1:1 triethylenediamine and trolamine; The mixture that described organometallic catalysts is made up of with weight ratio 1:2.5 stannous octoate and dibutyl tin laurate.
The mixture that described UV light absorber is made up of with weight ratio 1.8:1 triazole class UV light absorber and phentriazine class UV light absorber.
The mixture that described defoamer is made up of with weight ratio 1:0.8 silicone based defoamer and acryl-based antifoaming agent.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur Z 4470 MPA/X, its solid content 70%.
A preparation method for sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1500r/min, dispersed with stirring 2h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 10min, stirring velocity 1200r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Embodiment 4
A kind of sun power backboard transparent polyurethane coating, described transparent polyurethane coating is two Component Systems:
Wherein, component A is the raw material of following weight part:
Acrylic resin 40 parts
Fluoro-resin 60 parts
Organic solvent 18 parts
Catalyzer 2.5 parts
UV light absorber 2.5 parts
Defoamer 1.8 parts;
Component B is aliphatic polymeric isocyanate solidifying agent, the mixture that described aliphatic polymeric isocyanate solidifying agent is made up of with weight ratio 1:2 hexamethylene diisocyanate biruet and isophorone diisocyanate trimer;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Described acrylic resin is the acrylic resin of hydroxy functional groups.
The solid content of described acrylic resin is 60%-70%.Described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1215, and its solidification amount is 67%.
The mixture that described fluoro-resin is made up of with weight ratio 1:2 FEVE resin and PVDF resin.
Described organic solvent is acetone.
The mixture that described catalyzer is made up of with weight ratio 1:1.8 tertiary amine catalyst and organometallic catalysts; The mixture that described tertiary amine catalyst is made up of with weight ratio 1.2:1 triethylenediamine and trolamine; The mixture that described organometallic catalysts is made up of with weight ratio 1:3 stannous octoate and dibutyl tin laurate.
The mixture that described UV light absorber is made up of with weight ratio 2.2:1 triazole class UV light absorber and phentriazine class UV light absorber.
The mixture that described defoamer is made up of with weight ratio 1:1 silicone based defoamer and acryl-based antifoaming agent.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N75, its solid content 75%.
A preparation method for sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1800r/min, dispersed with stirring 2.5h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 15min, stirring velocity 1400r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Embodiment 5
A kind of sun power backboard transparent polyurethane coating, described transparent polyurethane coating is two Component Systems:
Wherein, component A is the raw material of following weight part:
Acrylic resin 50 parts
Fluoro-resin 70 parts
Organic solvent 20 parts
Catalyzer 3 parts
UV light absorber 3 parts
Defoamer 2 parts;
Component B is aliphatic polymeric isocyanate solidifying agent, the mixture that described aliphatic polymeric isocyanate solidifying agent is made up of with weight ratio 1:1 hexamethylene diisocyanate trimer and isophorone diisocyanate trimer.
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
Described acrylic resin is the acrylic resin of hydroxy functional groups.
Described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1252, and its solidification amount is 65%.
The mixture that described fluoro-resin is made up of with weight ratio 1:2.5 FEVE resin and PVDF resin.
Described organic solvent is pimelinketone.
The mixture that described catalyzer is made up of with weight ratio 1:2.2 tertiary amine catalyst and organometallic catalysts; Tertiary amine catalyst is triethylenediamine, and organometallic catalysts is stannous octoate.
The mixture that described UV light absorber is made up of with weight ratio 2.6:1 triazole class UV light absorber and phentriazine class UV light absorber.
The mixture that described defoamer is made up of with weight ratio 1:1.2 silicone based defoamer and acryl-based antifoaming agent.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur N 3390 BA/SN, its solid content 90%.
A preparation method for sun power backboard transparent polyurethane coating, comprises the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 2000r/min, dispersed with stirring 3h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 20min, stirring velocity 1500r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
Embodiment 6
The difference of the present embodiment and above-described embodiment 1 is: the mixture that described aliphatic polymeric isocyanate solidifying agent is made up of with weight ratio 1:1.8:2.5 hexamethylene diisocyanate biruet, hexamethylene diisocyanate trimer and isophorone diisocyanate trimer;
Described acrylic resin is the model that Niu Peisi company produces is the acrylic resin of Setalux 1753, and its solidification amount is 70%.
The mixture that described catalyzer is made up of with weight ratio 1:1.8 tertiary amine catalyst and organometallic catalysts; Tertiary amine catalyst is trolamine, and organometallic catalysts is dibutyl tin laurate.
Described aliphatic polymeric isocyanate solidifying agent is the model that Bayer company produces is the aliphatic polymeric isocyanate solidifying agent of Desmodur Z 4470 MPA/X, its solid content 70%.
The present invention is by acrylic resin and the composite use of fluoro-resin, obtained transparent polyurethane coating had both had the good weathering resistance of fluoro-resin, resistance to ultraviolet, erosion resistance, hydrolytic resistance, while there is higher sticking power, the advantage such as the hardness also with urethane is high, good corrosion resistance, resistance to abrasive property are good, has widened the Application Areas of acrylic coating in photovoltaic back greatly.Preparation method's technique of the present invention is simple, and convenient operation and control, steady quality, production efficiency is high, can large-scale industrial production.
Above-described embodiment is the present invention's preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.
Claims (10)
1. a sun power backboard transparent polyurethane coating, is characterized in that: described transparent polyurethane coating is two Component System:
Wherein, component A comprises the raw material of following weight part:
Acrylic resin 5-50 part
Fluoro-resin 30-70 part
Organic solvent 10-20 part
Catalyzer 1-3 part
UV light absorber 1-3 part
Defoamer 1-2 part;
Component B is aliphatic polymeric isocyanate solidifying agent, and described aliphatic polymeric isocyanate solidifying agent comprises at least one in hexamethylene diisocyanate biruet, hexamethylene diisocyanate trimer and isophorone diisocyanate trimer;
According to the ratio of NCO/OH=0.9-1.2, obtained transparent polyurethane coating.
2. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: described acrylic resin is the acrylic resin of hydroxy functional groups.
3. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: the solid content of described acrylic resin is 60%-70%.
4. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: described fluoro-resin comprises FEVE resin and/or PVDF resin.
5. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: described organic solvent comprises at least one in benzene,toluene,xylene, ethyl acetate, butylacetate, No. 100 solvent oils, No. 150 solvent oils, No. 200 solvent oils, acetone, butanone and pimelinketone.
6. a kind of sun power backboard transparent polyurethane coating according to claim 1, it is characterized in that: described catalyzer comprises tertiary amine catalyst and/or organometallic catalysts, tertiary amine catalyst comprises at least one in triethylenediamine, triethylamine and trolamine, and organometallic catalysts comprises stannous octoate and/or dibutyl tin laurate.
7. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: described UV light absorber comprises benzotriazole ultraviolet absorbent and/or phentriazine class UV light absorber.
8. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: described defoamer comprises organic silicon defoamer and/or acryl-based antifoaming agent.
9. a kind of sun power backboard transparent polyurethane coating according to claim 1, is characterized in that: the solid content of described aliphatic polymeric isocyanate solidifying agent is 70%-90%.
10. the preparation method of a kind of sun power backboard transparent polyurethane coating as described in any one of claim 1-9, is characterized in that: comprise the steps:
(1) fluoro-resin and organic solvent are added, add acrylic resin, catalyzer, UV light absorber and defoamer in stirring, stirring velocity is 1000-2000r/min, dispersed with stirring 1-3h, obtained component A;
(2) component B is slowly added in the obtained component A of step (1), stir 1-20min, stirring velocity 800-1500r/min;
(3) product after step (2) being stirred leaves standstill, filters, obtained transparent polyurethane coating.
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