CN108410340A - A kind of black weather-resistant coating and preparation method and application - Google Patents
A kind of black weather-resistant coating and preparation method and application Download PDFInfo
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- CN108410340A CN108410340A CN201810263343.5A CN201810263343A CN108410340A CN 108410340 A CN108410340 A CN 108410340A CN 201810263343 A CN201810263343 A CN 201810263343A CN 108410340 A CN108410340 A CN 108410340A
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- 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
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- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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Abstract
The invention discloses a kind of black weather-resistant coating and preparation method and application, which is grouped as two groups by A, B, and the component A includes：100 parts of matrix resin, 0.1~20 part of black dyes, 0~40 part of silane coupler modified filler, 5~10 parts of auxiliary agent, 0.5~2 part of curing agent accelerating agent, 50~150 parts of solvent；The B component includes：5~25 parts of curing agent, 5~50 parts of solvent.In use, being 1 according to the molar ratio of isocyanate groups contained by component A institute's hydroxyl and B component:The ratio between 0.5~2 is mixed, and coats.The present invention has 30% or more reflectivity in infrared region, and with good insulating properties, ageing-resistant and uv-resistance energy.Weather-resistant coating of the present invention, can be applied to photovoltaic back, reduce the heat absorption and temperature of black box, improve the battery conversion efficiency of black component, it can be achieved that power gain.
Description
Technical field
The present invention relates to photovoltaic apparatus preparing technical field more particularly to a kind of black weather-resistant coatings.
Background technology
As the green solution of traditional energy, photovoltaic cell component is straight by photoelectric effect or photochemical effect
Connect the device for luminous energy being converted to electric energy.Wherein solar energy backboard is in outermost position as the encapsulating material of photovoltaic module
It sets.
The energy of solar irradiation focuses primarily upon ultra-violet (UV) band, visible region and infrared region.Wherein, ultraviolet region 7%,
Visible light region occupies 50% energy, and infrared part accounts for about 43% or so.Photovoltaic cell is mainly absorbed and utilized 400~
The visible light of 700nm.Infrared light of the wavelength more than 1100nm will not be utilized by cell piece and be converted into electric energy, but be converted into
Thermal energy leads to photovoltaic module internal temperature rapid increase.There are document announcement, crystal silicon solar batteries operating temperature often to increase 1 DEG C,
The transformation efficiency of battery reduces by 0.4%~0.5%.Therefore, reinforce heat dissipation, reduce solar cell working temperature, be to improve too
The effective way of positive energy battery working efficiency.
Traditional radiating mode includes mainly heat transfer, convection current and heat radiation.But since photovoltaic module is by space, material
The limitation for expecting environment and cost, is radiated often and is not suitable for by the way of convection current and heat transfer.And heat radiation is then not present
These limiting factors can reduce the temperature of body surface, the root of fever is cut off from source if material can reflect infrared,
With good cooling-down effect.
Solar energy backboard is black compared with white backboard can reflect 70~80% infrared light since design for aesthetic is at black
Color backboard can only reflect 4% infrared light due to addition carbon black etc. in infrared region, absorb most of infrared light, lead to black
Back board module temperature is promoted.Traditional infrared reflection coating, as patent CN201210436521.2, CN201210052510.4,
It is infrared that CN201210169272.5, CN201210052925.1, CN201520087727.8 etc. are added to graphene, nanometer respectively
The fillers such as ceramic powder, carbon fiber, carbon nanotube, carbon nanomaterial, tin indium oxide, tin-antiomony oxide, such filler price general charged compared with
For costliness, theoretically it is not appropriate for using on a large scale.
Invention content
The purpose of the present invention is places in view of the shortcomings of the prior art, provide a kind of black weather-resistant coating and preparation side
Method and application, the coating which obtains has 50% or more reflectivity in infrared region, can be applied to coating type, compound
Photovoltaic back reduces the heat absorption and temperature of black box, improves the battery conversion efficiency of black component.The present invention is prepared into
To backboard can be applied to architecture-integral, while with dark color building tone consistent increases beauty, can gain power, and have
Good insulating properties (CTI grades can reach 600v), ageing-resistant and uv-resistance energy.
The purpose of the present invention is achieved through the following technical solutions：A kind of black weather-resistant coating, it is by A, two groups of B
It is grouped as, in terms of mass fraction, the component A includes：100 parts of matrix resin, 0.1~20 part of black dyes, silane coupling agent
0~40 part of modified filler, 5~10 parts of auxiliary agent, 0.5~2 part of curing agent accelerating agent, 50~150 parts of solvent；The auxiliary agent is by 0
~5 mass parts dispersants, 0.5~5 part of levelling agent and 0~5 part of light stabilizer composition.The B component includes：Curing agent 5
~25 parts, 5~50 parts of solvent.In use, being according to component A institute's hydroxyl and the molar ratio of isocyanate groups contained by B component
1:The ratio between 0.5~2 is mixed, and coats.
Further, described matrix resin is selected from polyurethane, acrylic resin, fluorine resin.The fluorine resin is selected from
Vinylidene (PVDF), trifluoro-ethylene-vinyl ether co-polymer, trifluoro-ethylene-vinyl ester copolymer, tetrafluoroethylene-Ethylene
Base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer.
Further, the curing agent be selected from isocyanates, amino resins, blocked isocyanate, blocked isocyanate,
Melamine.
Further, the dispersant is selected from block copolymerization species dispersant, the acrylic acid block of the affinity groups containing pigment
Copolymer analog dispersant, the dispersant of copolymer analog containing acidic-group, the levelling agent are selected from polyether siloxane copolymer class levelling
Agent, reactive polyether modified fluoro-silicone oxygen alkanes levelling agent, polyether-modified poly organo siloxane levelling agent, polyacrylate stream
Flat agent, the light stabilizer are selected from 3,5- di-t-butyl -4- hydroxy-benzoic acids cetyl ester, three (1,2,2,6,6- five first
Base -4- piperidyls) phosphite ester, decanedioic acid double -2,2,6,6- tetramethyl piperidine alcohol esters, double -1- decane oxygroups -2,2,6,6- tetra-
Methyl piperidine -4- alcohol sebacate, succinic acid and 4- hydroxyls -2,2, the polymer of 6,6- tetramethyl -1- piperidine alcohols, the solidification
Accelerating agent is dibutyl tin laurate, tin dilaurate dioctyl tin, monobutyltin oxide or stannous octoate, and the solvent is selected from
Toluene, dimethylbenzene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, butanone.
Further, the black dyes is selected from direct fast dye, direct diazo dye, the dyestuff that directly interlinks, contains
The azo dyes of complexing metal；The filler is selected from glass microballoon, ceramic microsphere, siderochrome Mn oxide, calcium titanium Mn oxide, oxygen
Change sub- cobalt, the average grain diameter of filler is 1~20 μm, and the silane coupling agent is selected from gamma-aminopropyl-triethoxy-silane, γ-
Glycidol ether aminopropyl trimethoxysilane, γ-methacryloyloxy-propyl trimethoxy silane, three ethoxy of vinyl
Base silane, vinyltrimethoxysilane, N- β-(aminoethyl)-γ-aminopropyltriethoxies dimethoxysilane, N- β-(ammonia second
Base)-γ-aminopropyltriethoxy trimethoxy silanes；The titanate coupling agent is selected from (the dioctylphyrophosphoric acid acyl-oxygen of isopropyl three
Base) titanate esters, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, isopropyl two oleic acid acyloxy (dioctyl phosphoric acid acyl-oxygen
Base) titanate esters, monoalkoxy unsaturated fatty acid titanate esters, Di(dioctylpyrophosphato) ethylene titanate.
The present invention also provides a kind of preparation methods of above-mentioned black weather-resistant coating, and this approach includes the following steps：
(5.1) 100 parts of filler is added in high speed dispersor, keeps in kettle under nitrogen atmosphere, in 3000-8000r/
0.5~5 part of silane coupling agent is added under min rotating speeds while stirring, improves rotating speed to 10000-30000r/ after addition
Min, temperature in the kettle are maintained at 110-140 DEG C, continue cooled to room temperature after 1~2h of stirring, obtain coupling agent modified fill out
Material, is sealed spare；(5.2) by 100 parts of matrix resin, 0~5 part of dispersant and 50~150 parts of solvent are in container
5min is ground with sand mill after middle stirring is pre-dispersed, 0~40 part is afterwards added and coupling agent modified is filled out by what (5.1) were prepared
Material is ground to grain fineness≤5 micron, then warming while stirring to 50~80 DEG C, and the black dyes of 0.1~20 part of addition waits for
Temperature is down to 40 DEG C, subsequently adds 0.5~5 part of levelling agent, 0~5 part of light stabilizer and 0.5~2 part of curing agent and promotes
Agent is obtained by filtration component A after the stirring of 1000~3000rpm high speed dispersions, deposits in spare in dry sealing container；
(5.3) 5~25 parts of curing agent and 0~50 part of solvent are uniformly mixed by mechanical agitation, are filtered, B is made
Component is deposited in spare in dry sealing container；
(5.4) in use, being 1 according to the molar ratio of isocyanate groups contained by component A institute's hydroxyl and B component:0.5~
The ratio between 2 are mixed, and are coated.
The present invention also provides a kind of application of above-mentioned black weather-resistant coating, which is specially：In nontransparent base material
Side coats black weather-resistant coating, as black high reflection adhesive layer；The weather-proof painting of black is coated in the other side of nontransparent base material
The infrared high reflection backboard of black is prepared as black weathering layer in material, and the base material is selected from polyethylene terephthalate
The biaxial stretching films such as ester, polybutylene terephthalate (PBT), polyethylene naphthalate, polybutylene naphthalate.Institute
The thickness for stating black high reflection adhesive layer is 3 μm~40 μm, and the thickness of the black weathering resistance coatings is 10 μm~40 μm, the base
Material thickness is 50 μm~300 μm.
Further, the construction technology of the photovoltaic back is described below：Choose the nontransparent base material of 50 μm~300 μ m-thicks
Film, using corona equipment corona to 50~60dyne/cm.It is weather-proof first one layer of black to be coated on the surface layer of nontransparent base film
The weathering layer of about 10~40 μ m-thicks is made in 120 DEG C -150 DEG C of heated-air drying 2~5min film forming as weathering layer in coating,
The other side of basement membrane is made about 3 by one layer of black weather-resistant coating of coating in 120 DEG C -150 DEG C of heated-air drying 2~5min film forming
The infrared high reflection backboard of black is prepared in the adhesive layer of~40 μ m-thicks.
Beneficial effects of the present invention：
1. the present invention has good infrared high reflectance and good insulating properties (CTI grades can reach 600v), excellent
Different ageing-resistant, uv-resistance energy, preparation method is simple for process, easily operated
2. the present invention does weathering layer using fluorine-containing coat, there is excellent weather resistance.Polyurethane painting can be used in adhesive layer
One kind in layer, acrylate coatings, fluorine coating can effectively control backboard cost.
3. the adhesive layer and EVA of the present invention, PVB etc. has good adhesive property.
Description of the drawings
Fig. 1 is the reflectivity data figure of 4 embodiments of the invention.
Specific implementation mode
The present invention is further described in detail below in conjunction with example, but not limited to this.
In embodiments of the present invention, thickness is used to make for 250 μm of ethylene glycol terephthalates (PET) in following embodiment
For basal layer.
Embodiment 1：
The coating formula of weathering layer and adhesive layer is following (mass fraction)：
Component A：
1) it is black (U.S. Xue Te) that 100 parts of siderochrome are added in high speed dispersor, keep in kettle under nitrogen atmosphere, in 8000r/
5 parts of coupling agent gamma-aminopropyl-triethoxy-silanes (Aladdin reagent) are slowly added under min rotating speeds while stirring, addition finishes
Rotating speed is increased to 30000r/min afterwards, temperature in the kettle is maintained to 140 DEG C, is continued cooled to room temperature after stirring 1h, is obtained
It is black to coupling agent modified siderochrome, it is sealed, for use；
By 100 parts of fluorine resin GK570 (Daikin coating), 5 parts of dispersant B YK108 (German Bi Ke chemistry), with
And 150 parts of solvent xylene stir in a reservoir it is pre-dispersed after with sand mill be ground 5min, add 30 parts of coupling agents
Modified siderochrome is black, until grain fineness≤5 micron, warming while stirring adds 0.1 part of organic dyestuff directly black 144 to 80 DEG C
(Switzerland's vapour bar) waits for that temperature is down to 40 DEG C, and follow-up 5 parts of levelling agent BYK355 of addition (German Bi Ke chemistry), 2 parts of curing agent promote
Agent dibutyl tin laurate (Aladdin reagent) is obtained by filtration component A after the stirring of 3000rpm high speed dispersions, deposits in drying
It is for use in sealing container；
B component：
By 25 parts of curing agent N3390 (German Baeyer) and 50 parts of solvent xylenes, mechanical agitation is uniformly mixed, and is filtered, system
B component, deposit in dry sealing container for use；
Make backboard process：
The PET film for choosing 250 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First in the table of PET basement membranes
Layer is coated by the coating formula of weathering layer, and in 120 DEG C of heated-air drying 5min film forming, the weathering layer of about 40 μ m-thicks is made,
Using same technique, coated by the coating formula of adhesive layer in the other side of basement membrane, in 120 DEG C of heated-air drying 5min
Film forming, is made the adhesive layer of about 40 μ m-thicks.Backboard A can be obtained by the above formula.
Embodiment 2：
The coating formula of weathering layer and adhesive layer is following (mass fraction)：
Component A：
1) 100 parts of calcium titanium Mn oxides (Shanghai face titanium) are added in high speed dispersor, keep in kettle under nitrogen atmosphere,
0.5 part of vinyltrimethoxysilane (Aladdin reagent) is slowly added under 3000r/min rotating speeds while stirring, after addition
Rotating speed is increased to 10000r/min, temperature in the kettle is maintained to 110 DEG C, is continued cooled to room temperature after stirring 2h, is obtained
Coupling agent modified calcium titanium Mn oxide, is sealed, for use；
By 100 parts of fluorine resin GK570 (Daikin coating), 3 parts of dispersant B YK161 (German Bi Ke chemistry), with
And 100 parts of solvent acetic acid butyl ester stir in a reservoir it is pre-dispersed after with sand mill be ground 5min, add 30 parts of couplings
The calcium titanium Mn oxide that agent is modified, until grain fineness≤5 micron, to 50 DEG C, 5 parts of organic dyestuff of addition are direct for warming while stirring
Black 144 (Switzerland's vapour bar), wait for that temperature is down to 40 DEG C, follow-up 3 parts of levelling agent BYK355 of addition (German Bi Ke chemistry), 1 part of solidification
Agent accelerating agent dibutyl tin laurate (Aladdin reagent) is obtained by filtration component A after the stirring of 1000 high speed dispersions, deposits in dry
It is for use in dry sealing container；
B component：
By 20 parts of curing agent N3390 (German Baeyer) and 20 parts of solvent acetic acid butyl esters, mechanical agitation is uniformly mixed, filtering,
The B component of system is deposited in for use in dry sealing container；
Make backboard process：
The PET film for choosing 250 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First in the table of PET basement membranes
Layer is coated by the coating formula of weathering layer, and in 150 DEG C of heated-air drying 3min film forming, the weathering layer of about 20 μ m-thicks is made,
Using same technique, coated by the coating formula of adhesive layer in the other side of basement membrane, in 150 DEG C of heated-air drying 3min
Film forming, is made the adhesive layer of about 10 μ m-thicks.Backboard B can be obtained by the above formula.
Embodiment 3：
The coating formula of weathering layer and adhesive layer is following (mass fraction)：
Component A：
By 100 parts of fluorine resin GK570 (Daikin coating), 50 parts of solvent propylene glycol methyl ether acetate is in a reservoir
Stir it is pre-dispersed after, while heating while stir to 60 DEG C, add 20 parts of premetallized dye X55 (German BASF).Follow-up addition
0.5 part of curing agent accelerating agent dibutyl tin laurate (Aladdin reagent), 5 parts of light stabilizers 292 (Taiwan double bond),
Component A is obtained by filtration after the stirring of 1000rpm high speed dispersions, deposits in for use in dry sealing container；
B component：
By 5 parts of curing agent Desmodur Z4470 (Bayer Bitterfeld GmbH) and 5 parts of solvent propylene glycol methyl ether acetates, mechanical agitation
It is uniformly mixed, filtering, the B component of system, deposits in for use in dry sealing container；
Make backboard process：
The PET film for choosing 250 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First in the table of PET basement membranes
Layer is coated by the coating formula of weathering layer, and in 150 DEG C of heated-air drying 2min film forming, the weathering layer of about 10 μ m-thicks is made,
Using same technique, coated by the coating formula of adhesive layer in the other side of basement membrane, in 150 DEG C of heated-air drying 2min
Film forming, is made the adhesive layer of about 3 μ m-thicks.Backboard C can be obtained by the above formula.
Embodiment 4：
Weathering layer coating formula is following (mass fraction)：
Component A：
100 parts of cobalt protoxides (U.S. Xue Te) are added in high speed dispersor, keep in kettle under nitrogen atmosphere, in 5000r/
Being slowly added to 3 parts of coupling agent propyl three (dioctylphyrophosphoric acid acyloxy) titanate esters under min rotating speeds while stirring, (Aladdin tries
Agent), rotating speed is increased to 30000r/min after addition, temperature in the kettle is maintained to 120 DEG C, continue stir 1h after it is naturally cold
But to room temperature, it is black to obtain coupling agent modified siderochrome, is sealed, for use；
By 100 parts of fluorine resin WF-J313 (Wuxi Huambo coating), 3 parts of dispersant B YK161 (German Bi Ke chemistry),
And 50 parts of solvent acetic acid butyl ester stir in a reservoir it is pre-dispersed after with sand mill be ground 5min, add 20 parts of couplings
The cobalt protoxide that agent is modified, until grain fineness≤5 micron, warming while stirring adds 5 parts of premetallized dye X55 to 60 DEG C
(German BASF) waits for that temperature is down to 40 DEG C, follow-up 1 part of BYK355 of addition (German Bi Ke chemistry), 1 part of curing agent accelerating agent two
Dibutyl tin laurate (Aladdin reagent) is obtained by filtration component A after the stirring of 3000rpm high speed dispersions, deposits in dry sealing
It is for use in container；
B component：
By 20 parts of curing agent Desmodur Z4470 (German Baeyer) and 20 parts of solvent acetic acid butyl esters, mechanical agitation mixing is equal
Even, filtering, the B component of system is deposited in for use in dry sealing container；
Adhesive layer coating formula is following (mass fraction)：
Component A：
100 parts of cobalt protoxides (U.S. Xue Te) are added in high speed dispersor, keep in kettle under nitrogen atmosphere, in 5000r/
Being slowly added to 3 parts of coupling agent propyl three (dioctylphyrophosphoric acid acyloxy) titanate esters under min rotating speeds while stirring, (Aladdin tries
Agent), rotating speed is increased to 30000r/min after addition, temperature in the kettle is maintained to 120 DEG C, continue stir 1h after it is naturally cold
But to room temperature, it is black to obtain coupling agent modified siderochrome, is sealed, for use；
By 100 parts of acrylic resin LR7765 (Mitsubishi), 5 parts of dispersant B YK161 (German Bi Ke chemistry), with
And 50 parts of solvent acetic acid butyl ester stir in a reservoir it is pre-dispersed after with sand mill be ground 5min, add 20 parts of coupling agents
20min is sanded in modified cobalt protoxide, 20 parts of glass microspheres (U.S. 3M), and warming while stirring adds 5 parts of metals to 60 DEG C
Complex dyestuff X55 (German BASF), waits for that temperature is down to 40 DEG C, subsequently adds 1BYK355 (German Bi Ke chemistry), 1 part of solidification
Agent accelerating agent dibutyl tin laurate (Aladdin reagent) is obtained by filtration component A after the stirring of 3000rpm high speed dispersions, stores
It is for use in dry sealing container；
B component：
By 20 parts of curing agent Desmodur Z4470 (German Baeyer) and 20 parts of solvent acetic acid butyl esters, mechanical agitation mixing is equal
Even, filtering, the B component of system is deposited in for use in dry sealing container；
The PET film for choosing 250 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First in the table of PET basement membranes
Layer is coated by the coating formula of weathering layer, and in 120 DEG C of heated-air drying 5min film forming, the weathering layer of about 20 μ m-thicks is made,
Using same technique, coated by the coating formula of adhesive layer in the other side of basement membrane, in 120 DEG C of heated-air drying 5min
Film forming, is made the adhesive layer of about 10 μ m-thicks.Backboard D can be obtained in the above formula.
Comparative example 1：
In comparative example 1, use thickness for 250 μm of PET basement membranes.Convention pigment carbon black is used in coating formula；
The coating formula of weathering layer and coat is following (mass fraction)：
By 100 parts of fluorine resin GK570 (Daikin coating), 5 parts of dispersant B YK108 (German Bi Ke chemistry), with
And 50 parts of solvent xylene stir in a reservoir it is pre-dispersed after with sand mill be ground 5min, add 5 parts of carbon black M11
(Mitsubishi), until grain fineness≤5 micron, (Aladdin tries follow-up 1 part of curing agent accelerating agent dibutyl tin laurate of addition
Agent), component A is obtained by filtration, deposits in for use in dry sealing container；
B component：
By 20 parts of curing agent N3390 (German Baeyer) and 20 parts of solvent xylenes, mechanical agitation is uniformly mixed, and is filtered, system
B component, deposit in dry sealing container for use；
Make backboard process：
The PET film for choosing 250 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First in the table of PET basement membranes
Layer is coated by the coating formula of weathering layer, and in 120 DEG C of heated-air drying 5min film forming, the weathering layer of about 40 μ m-thicks is made,
Using same technique, coated by the coating formula of adhesive layer in the other side of basement membrane, in 120 DEG C of heated-air drying 5min
Film forming, is made the adhesive layer of about 40 μ m-thicks.Backboard E can be obtained by the above formula.
Comparative example 2:The black backboard F of other producers.
Performance test：
Reflectance test：It is marked according to GB/T13452.3-92, GB/T9270-88, GB/T5211.17-88, ISO3906-80
The Albedometer of quasi- design is tested.
CTI is tested：It is tested by GB/T4207-2012 standards.It is tested using Dielectric Tester.
Yellowness index：It is detected by GB2409-80.
With the peel strength of EVA：Peel strength test is carried out by GB/T2790.
Damp and hot experiment：It is carried out by the regulation of IEC 61215-2005, at 85 DEG C ± 2 DEG C, humidity (85 ± 5) %RH's is warm and humid
Accelerated ageing is carried out in degree case.Record yellowness index (△ YI) and peel strength of the sample after aging 1000h.
Reflectivity：It is detected by CNCA/CTS0014-2013.
Power：By IEC61215-2 2016:4.2 being detected.
The infrared anti-backboard of height of black obtained by above-described embodiment, is evaluated through above-mentioned test method, evaluation knot
Shown in fruit following table：
Table 1
From test data table 1 as can be seen that the infrared anti-backboard of height of black provided by the invention infrared region have it is good instead
Penetrate performance and good CTI performances and excellent ageing-resistant performance, flame retardant property.The above, it is only of the invention compared with
Good embodiment is not intended to now determine protection scope of the present invention.Every equivalent change done according to the content of present invention and modification,
It is encompassed by the scope of the claims of the present invention.
Claims (8)
1. a kind of black weather-resistant coating, which is characterized in that, by A, two groups of B are grouped as it, in terms of mass fraction, the component A
Including：100 parts of matrix resin, 0.1~20 part of black dyes, 0~40 part of silane coupler modified filler, 5~10 parts of auxiliary agent,
0.5~2 part of curing agent accelerating agent, 50~150 parts of solvent etc.；The auxiliary agent is by 0~5 mass parts dispersant, 0.5~5 part of stream
Flat agent and 0~5 part of light stabilizer composition.The B component includes：5~25 parts of curing agent, 5~50 parts of solvent.In use, pressing
Molar ratio according to isocyanate groups contained by component A institute's hydroxyl and B component is 1:The ratio between 0.5~2 is mixed, and coats.
2. black weather-resistant coating according to claim 1, which is characterized in that described matrix resin is selected from polyurethane, propylene
Acid resin, fluorine resin.The fluorine resin is selected from vinylidene (PVDF), trifluoro-ethylene-vinyl ether co-polymer, trifluoro second
Alkene-vinyl ester copolymer, tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer.
3. black weather-resistant coating according to claim 1, which is characterized in that the curing agent is selected from isocyanates, amino
Resin, blocked isocyanate, blocked isocyanate, melamine.
4. black weather-resistant coating according to claim 1, which is characterized in that the dispersant is selected from affinity groups containing pigment
Block copolymerization species dispersant, acrylic block copolymers class dispersant, the dispersant of copolymer analog containing acidic-group, the stream
Flat agent is selected from polyether siloxane copolymer class levelling agent, reactive polyether modified fluoro-silicone oxygen alkanes levelling agent, polyether-modified poly- has
Organic siloxane class levelling agent, polyacrylate levelling agent, the light stabilizer are selected from 3,5- di-t-butyls -4- hydroxyls-benzene first
Double -2,2,6, the 6- tetramethyl piperazines of sour cetyl ester, three (1,2,2,6,6- pentamethyl -4- piperidyls) phosphite esters, decanedioic acid
Pyridine alcohol ester, double -1- decane oxygroups -2,2,6,6- tetramethyl piperidine -4- alcohol sebacates, succinic acid and 4- hydroxyls -2,2,6,6-
The polymer of tetramethyl -1- piperidine alcohols, the curing accelerator are dibutyl tin laurate, tin dilaurate dioctyl tin, oxygen
Change Monobutyltin or stannous octoate, the solvent is selected from toluene, dimethylbenzene, ethyl acetate, butyl acetate, propylene glycol monomethyl ether acetic acid
Ester, butanone.
5. black weather-resistant coating according to claim 1, which is characterized in that the black dyes is selected from direct sun-proof dye
Material, direct diazo dye, directly interlink dyestuff, the azo dyes containing complexing metal；The filler is selected from glass microballoon, ceramics
The average grain diameter of microballon, siderochrome Mn oxide, calcium titanium Mn oxide, cobalt protoxide, filler is 1~20 μm, and the silane is even
Join agent and is selected from gamma-aminopropyl-triethoxy-silane, γ-glycidol ether aminopropyl trimethoxysilane, γ-methacryloxypropyl
Base-propyl trimethoxy silicane, vinyltriethoxysilane, vinyltrimethoxysilane, N- β-(aminoethyl)-γ-ammonia
Hydroxypropyl methyl dimethoxysilane, N- β-(aminoethyl)-γ-aminopropyltriethoxy trimethoxy silanes；The titanate esters coupling
Agent is selected from isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, different
Two oleic acid acyloxy of propyl (dioctyl phosphoric acid acyloxy) titanate esters, monoalkoxy unsaturated fatty acid titanate esters, bis- (two pungent oxygen
Base pyrophosphoric acid ester group) ethylene titanate esters.
6. a kind of preparation method of black weather-resistant coating described in claim 1, which is characterized in that this method includes following step
Suddenly：
(5.1) 100 parts of filler is added in high speed dispersor, keeps in kettle under nitrogen atmosphere, turns in 3000-8000r/min
0.5~5 part of silane coupling agent is added under speed while stirring, improves rotating speed to 10000-30000r/min, kettle after addition
Interior temperature is maintained at 110-140 DEG C, continues cooled to room temperature after 1~2h of stirring, obtains coupling agent modified filler, sealing
It saves backup.
(5.2) by 100 parts of matrix resin, 0~5 part of dispersant and 50~150 parts of solvent stir pre-dispersed in a reservoir
5min is ground with sand mill afterwards, 0~40 part of the coupling agent modified filler being prepared by (5.1) is added afterwards, is ground to particle
Fineness≤5 micron, then warming while stirring, to 50~80 DEG C, the black dyes of 0.1~20 part of addition waits for that temperature is down to 40 DEG C,
Subsequently 0.5~5 part of levelling agent of addition, 0~5 part of light stabilizer and 0.5~2 part of curing agent accelerating agent, through 1000~
Component A is obtained by filtration after the stirring of 3000rpm high speed dispersions, deposits in spare in dry sealing container.
(5.3) 5~25 parts of curing agent and 0~50 part of solvent are uniformly mixed by mechanical agitation, are filtered, B component is made,
It deposits in spare in dry sealing container.
(5.4) in use, being 1 according to the molar ratio of isocyanate groups contained by component A institute's hydroxyl and B component:0.5~2 it
Than being mixed, and coated.
7. a kind of application of black weather-resistant coating described in claim 1, which is characterized in that the application is specially：Nontransparent
The side of base material coats black weather-resistant coating, as black high reflection adhesive layer；Black is coated in the other side of nontransparent base material
The infrared high reflection backboard of black is prepared as black weathering layer in weather-resistant coating, and the base material is selected from poly terephthalic acid
The biaxial tensiones such as glycol ester, polybutylene terephthalate (PBT), polyethylene naphthalate, polybutylene naphthalate
Film.The thickness of the black high reflection adhesive layer is 3 μm~40 μm, and the thickness of the black weathering resistance coatings is 10 μm~40 μm,
The base material thickness is 50 μm~300 μm.
8. requiring the application of the 7 black weather-resistant coatings according to economic rights, which is characterized in that the construction technology of the photovoltaic back is chatted
It states as follows：The nontransparent base film for choosing 50 μm~300 μ m-thicks, using corona equipment corona to 50~60dyne/cm.First exist
The surface layer of nontransparent base film coats one layer of black weather-resistant coating as weathering layer, 120 DEG C -150 DEG C of heated-air dryings 2~
5min forms a film, and the weathering layer of about 10~40 μ m-thicks is made, in the other side of basement membrane by one layer of black weather-resistant coating of coating, 120
DEG C -150 DEG C of heated-air drying 2~5min film forming, is made the adhesive layer of about 3~40 μ m-thicks, the infrared high reflection of black is prepared
Backboard.
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| CN109713069A (en) * | 2018-12-21 | 2019-05-03 | 苏州赛伍应用技术股份有限公司 | A kind of black high reflection solar cell backboard and preparation method thereof |
| CN111732847A (en) * | 2020-06-10 | 2020-10-02 | 苏州福斯特光伏材料有限公司 | Black high-reflection composition, coating, pellet and solar cell back sheet |
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| CN115926548A (en) * | 2022-12-30 | 2023-04-07 | 常州回天新材料有限公司 | Coating composition for black solar cell back panel and preparation method and application thereof |
| CN116082777A (en) * | 2022-02-10 | 2023-05-09 | 隆基乐叶光伏科技有限公司 | Black weather-resistant layer, photovoltaic module and color photovoltaic module |
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