CN104538473B - Anti-flaming backboard for solar cell module - Google Patents

Anti-flaming backboard for solar cell module Download PDF

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Publication number
CN104538473B
CN104538473B CN201410819528.1A CN201410819528A CN104538473B CN 104538473 B CN104538473 B CN 104538473B CN 201410819528 A CN201410819528 A CN 201410819528A CN 104538473 B CN104538473 B CN 104538473B
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fire
backboard
retardant
solar module
proportioning
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CN104538473A (en
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梅云宵
林维红
李江
王波
周光大
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Hangzhou Forster applied materials Limited by Share Ltd
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Hangzhou First PV Material Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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Abstract

The invention discloses an anti-flaming backboard for a solar cell module. The anti-flaming backboard is composed of a substrate layer, a weather-proof coating and a bonding layer, wherein one surface of the substrate layer is coated with the weather-proof coating, the other surface of the substrate layer is coated with the bonding layer, the thickness of the weather-proof coating ranges from 10 microns to 60 microns, the weather-proof coating is composed of fluorine-containing resin, curing agents, curing accelerators, flame retardants, filler, auxiliaries and solvents, and the bonding layer is composed of matrix resin, curing agents, curing accelerators, flame retardants, filler, auxiliaries and solvents. The manufactured anti-flaming backboard has a high flame retardant property, good insulativity and good ageing-resistant performance, the process of the manufacturing method of the anti-flaming backboard is simple, and operation is easy.

Description

A kind of fire-retardant backboard of solar module
Technical field
The present invention relates to a kind of fire-retardant backboard of solar module.
Background technology
As the green solution of traditional energy, photovoltaic cell component is straight by photoelectric effect or Photochemical effects Connect device luminous energy being changed into electric energy.Photovoltaic module is typically mounted on outdoor locations, such as roof, wall or other support knots On structure.With the continuous enhancing of people's safety consciousness, the photovoltaic module being arranged on the region that building external easily catches fire needs resistance Combustion performance.
Wherein solar energy backboard is in outermost position as the encapsulating material of photovoltaic module, is that photovoltaic module is main again Organic material, the exploitation of therefore flame retardant type backboard is particularly important.
Existing fire-retardant backboard product is based primarily upon flame-retardant modified, the prior art Publication No. of tpt overlay film type backboard Cn201180060771, by modified to base layer, make fire-retardant Crystalline material silicate platelets, reaches flame retardant effect, but It intercepts steam poor-performing, is easily caused assembly and the problems such as Limax stricture of vagina, power reduction during use.
Content of the invention
The purpose of the present invention is part in view of the shortcomings of the prior art, provides a kind of solar module with fire-retardant Backboard, it has preferable anti-flammability, insulating properties and good barrier property, and its preparation method process is simple is it is easy to operate.
A kind of fire-retardant backboard of solar module, the weathering resistance coatings by basal layer, being coated on substrate surface and painting It is overlying on the tack coat composition on another surface of basal layer；The thickness of described basal layer is 120-300 μm, by the substrate of 100 weight portions The fire retardant composition of material and 0 ~ 100 weight portion, described base material is selected from polyethylene terephthalate (pet), poly- right Benzene dicarboxylic acid butanediol ester (pbt), PEN (pen), polyamide (pa)；Described weathering resistance coatings thickness is 10 μm -60 μm, by the fluorine resin of 100 weight portions, the firming agent of 10 ~ 30 weight portions, the curing accelerator of 0.5 ~ 2 weight portion, 10 ~ The fire retardant of 100 weight portions, the filler of 0 ~ 40 weight portion, the auxiliary agent of 1 ~ 8 weight portion, the solvent composition of 50 ~ 150 weight portions；Institute State bondline thickness and be 5 μm -30 μm, by the matrix resin of 100 weight portions, the firming agent of 5 ~ 25 weight portions, 0.5 ~ 2 weight portion Curing accelerator, the fire retardant of 0 ~ 100 weight portion, the filler of 0 ~ 40 weight portion, the auxiliary agent of 1 ~ 8 weight portion, 50 ~ 150 weight portions Solvent composition.
Further, described fluorine resin is by vinylidene (pvdf), trifluoro-ethylene-vinyl ether co-polymer, trifluoro second One of alkene-vinyl ester copolymer, tetrafluoroethylene-Ethylene base ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer or many Plant and mix composition according to any proportioning.
Further, described matrix resin by one or more of polyurethane, acrylic resin, polyester resin according to appoint Meaning proportioning mixing composition.
Further, described firming agent by isocyanates, amino resins, blocked isocyanate, blocked isocyanate, three One or more of poly cyanamid mixes composition according to any proportioning.
Further, described fire retardant by bis-phenol a double (diphenyl phosphate) (bdp), methyl-phosphoric acid dimethyl ester (dmmp), Tricresyl phosphate (2,3- bis- chloropropyl) ester (tdcpp), melamine pyrophosphate (mpp), melamine cyanurate (mca), poly- phosphorus Sour ammonium (app), tetramethylolmethane, tetrabromobisphenol a, TDE and deca-BDE, aluminium hydroxide, magnesium hydroxide, three oxygen Change one or more of two antimony and mix composition according to any proportioning.
Further, described filler is mixed according to any proportioning by one or more of titanium dioxide, white carbon black, flatting silica Composition.
Further, described auxiliary agent is by dispersant, levelling agent, defoamer, UV absorbent, light stabilizer Kind or multiple according to any proportioning mix composition.
Further, described solvent is by toluene, dimethylbenzene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, fourth One or more of ketone mixes composition according to any proportioning.
Further, described curing accelerator is organic tin curing accelerator.
Beneficial effects of the present invention:
1. the fire-retardant backboard that the present invention obtains has preferable anti-flammability, insulating properties and good barrier property, its preparation side Method process is simple is it is easy to operate.
2. present invention employs fluorine-containing coat and do weathering layer, there is excellent weather resistance.Tack coat can adopt polyurethane One of coating, acrylate coatings, fluorine coating, can effective control backboard cost.
3. the tack coat of the present invention and eva, pvb etc. have good adhesive property.
Specific embodiment
Below in conjunction with example, the present invention is further described in detail, it should be noted that for ease of contrast and experiment, Base material in following examples is all using pet.Following examples are only presently preferred embodiments of the present invention, are not intended to existing Ding Benfa Bright protection domain.Every impartial change done according to present invention and modification, are encompassed by the scope of the claims of the present invention Interior.
Embodiment 1:
The coating formula of weathering layer is following (mass fraction):
Fluorine resin gk570(Daikin coating) 100；
Firming agent n3390(Germany Baeyer) 20;
Curing accelerator dibutyl tin laurate 0.5；
Fire retardant bdp (Zhejiang ten thousand is contained) 10;
Titanium dioxide r996(Shanghai jump river titanium white) 35；
Flatting silica c803 (U.S.'s Grace) 5；
Dispersant byk108 (German Bi Ke chemistry) 1；
Solvent ethyl acetate 100；
The coating formula of tack coat is following (mass fraction):
Acrylic resin lr7765(Mitsubishi) 100;
Firming agent n3390(Germany Baeyer) 25;
Curing accelerator dibutyl tin laurate 1;
Titanium dioxide r996 (Shanghai jump river titanium white) 40；
Dispersant byk108 (German Bi Ke chemistry) 1
Solvent ethyl acetate 100.
Making backboard process:
Add the fire retardant that mass fraction is 30%app, mix homogeneously in pet masterbatch, extrude and carry out biaxial tension, Obtain the fire-retardant pet thin film of 120 μ m-thick, and using corona equipment corona to 50 ~ 60dyne/cm.First press on the top layer of pet basement membrane The coating formula of weathering layer is coated, and in 120 DEG C of hot air drying 2 ~ 5min film forming, makes the weathering layer of about 30 μ m-thick, adopts With same technique, it is coated by the coating formula of tack coat in the opposite side of basement membrane, in 120 DEG C of hot air drying 2 ~ 5min Film forming, makes the tack coat of about 5 μ m-thick.Can get white fire-retardant backboard by above formula.
Embodiment 2:
The coating formula of weathering layer is following (mass fraction):
Fluorine resin gk570(Daikin coating) 100；
Firming agent n3390(Germany Baeyer) 10；
Curing accelerator dibutyl tin laurate 0.5；
White carbon black 5；
Aluminium hydroxide/magnesium hydroxide 60/40；
Dispersant efka-4061 (Dutch EFKA) 2.5；
Defoamer byk1790 (German Bi Ke chemistry) 0.5；
Solvent propylene glycol methyl ether acetate 150；
The coating formula of tack coat is following (mass fraction):
Acrylic resin acr6730(brilliant same Dehua work) 100；
Firming agent n3390(Germany Baeyer) 5；
Curing accelerator dibutyl tin laurate 0.5；
White carbon black 5；
Aluminium hydroxide/magnesium hydroxide 60/40；
Dispersant efka-4061 (Dutch EFKA) 2；
Defoamer byk1790 (German Bi Ke chemistry) 0.5；
Solvent acetic acid butyl ester 150.
Making backboard process:
Add the aluminium hydroxide fire retardant that mass fraction is 50%, mix homogeneously in pet masterbatch, extrude and carry out two-way Stretching, obtains the fire-retardant pet thin film of 300 μ m-thick, and using corona equipment corona to 50 ~ 60dyne/cm.First in pet basement membrane Top layer is coated by the coating formula of weathering layer, in 120 DEG C of hot air drying 2 ~ 5min film forming, makes the weather-proof of about 10 μ m-thick Layer, using same technique, is coated by the coating formula of tack coat in the opposite side of basement membrane, in 120 DEG C of hot air drying 2 ~ 5min film forming, makes the tack coat of about 10 μ m-thick.Can get black flame-retardant backboard by above formula.
Embodiment 3:
The coating formula of weathering layer is following (mass fraction):
Fluorine resin wf-j313(Wuxi Huambo coating) 100；
Firming agent n3390(Bayer Bitterfeld GmbH) 10；
Curing accelerator dibutyl tin laurate 1.5；
Fire retardant tetrabromobisphenol a/ antimony oxide 30/20；
Titanium dioxide 20；
Dispersant byk161 (German Bi Ke chemistry) 3；
Solvent xylene/propylene glycol methyl ether acetate 20/100.
The coating formula of tack coat is following (mass fraction):
Unsaturated polyester (UP) wf-p011 (Wuxi Huambo coating) 100；
Firming agent n3390(Bayer Bitterfeld GmbH) 10；
Curing accelerator dibutyl tin laurate 0.5；
Titanium dioxide 20；
Dispersant byk161 (German Bi Ke chemistry) 2.5；
Solvent xylene 80.
Make backboard process
Pet masterbatch is extruded and carries out biaxial tension, obtain the pet thin film of 180 μ m-thick, using corona equipment corona to 50 ~60dyne/cm.First be coated by the coating formula of weathering layer on the top layer of pet basement membrane, 120 DEG C of hot air dryings 2 ~ 5min film forming, makes the weathering layer of about 60 μ m-thick, using same technique, presses the coating formula of tack coat in the opposite side of basement membrane It is coated, in 120 DEG C of hot air drying 2 ~ 5min film forming, make the tack coat of about 15 μ m-thick.Above formula can get white Fire-retardant backboard.
Embodiment 4:
The coating formula of weathering layer is following (mass fraction):
Fluorine resin gk570(Daikin coating) 100；
Firming agent desmodur z4470(Bayer Bitterfeld GmbH) 30；
Curing accelerator dibutyl tin laurate 2；
Fire retardant fr-530 (Chunan auxiliary reagent factory) 40；
Uv absorbent/light stabilizer uv-196/uv-292 4/4；
Solvent propylene glycol methyl ether acetate 50;
The coating formula of tack coat is following (mass fraction):
Acrylic resin lr7765(Mitsubishi) 100；
Firming agent desmodur z4470(Bayer Bitterfeld GmbH) 20；
Curing accelerator dibutyl tin laurate 2；
Fire retardant bdp 30;
Uv absorbent/light stabilizer uv-196/uv-292 4/4；
Solvent propylene glycol ether acetate 50.
Making backboard process:
Pet masterbatch is extruded and carries out biaxial tension, obtain the pet thin film of 180 μ m-thick, and using corona equipment corona extremely 50~60dyne/cm.First be coated by the coating formula of weathering layer on the top layer of pet basement membrane, 120 DEG C of hot air dryings 2 ~ 5min film forming, makes the weathering layer of about 40 μ m-thick, using same technique, presses the coating formula of tack coat in the opposite side of basement membrane It is coated, in 120 DEG C of hot air drying 2 ~ 5min film forming, make the tack coat of about 30 μ m-thick.Above formula can get transparent Fire-retardant backboard.
Comparative example:
Comparative example 1:
The coating formula of weathering layer is following (mass fraction):
Fluorine resin wf-j313(Wuxi Huambo coating) 100；
Firming agent n3390(Bayer Bitterfeld GmbH) 10；
Curing accelerator dibutyl tin laurate 1.5；
Titanium dioxide 20；
Dispersant byk161 (German Bi Ke chemistry) 2；
Solvent xylene/propylene glycol methyl ether acetate 20/100.
The coating formula of tack coat is following (mass fraction):
Unsaturated polyester (UP) wf-p011 (Wuxi Huambo coating) 100；
Firming agent n3390(Bayer Bitterfeld GmbH) 10；
Curing accelerator dibutyl tin laurate 0.5；
Titanium dioxide 20；
Dispersant byk161 (German Bi Ke chemistry) 2.5；
Solvent xylene 80.
Making backboard process:
Pet masterbatch is extruded and carries out biaxial tension, obtain the pet thin film of 180 μ m-thick, using corona equipment corona to 50 ~60dyne/cm.First be coated by the coating formula of weathering layer on the top layer of pet basement membrane, 120 DEG C of hot air dryings 2 ~ 5min film forming, makes the weathering layer of about 60 μ m-thick, using same technique, presses the coating formula of tack coat in the opposite side of basement membrane It is coated, in 120 DEG C of hot air drying 2 ~ 5min film forming, make the tack coat of about 15 μ m-thick.Above formula can get white Fire-retardant backboard.
Comparative example 2: backboard tfb-30 is buied in market.
Performance test:
Vertical combustion: by ansi/ul94-2009 standard, measured using horizontal vertical burning analyzer.Oxygen index (OI): according to Gb/t2406-2009 standard, is measured using oxygen index measurer.
Flame spread index: by astm e162 standard, measured using radiant panel propagation of flame tester.
Yellowness index: detected by gb2409-80.
Peel strength with eva: carry out peel strength test by gb/t2790.
Damp and hot experiment: carry out by the regulation of iec 61215-2005, at 85 DEG C ± 2 DEG C, humidity (85 ± 5) %rh's is warm and humid Carry out accelerated ageing in degree case.Record yellowness index (△ yi) after aging 1000h for the sample and peel strength.
The fire-retardant backboard being obtained by above-described embodiment, is evaluated through above-mentioned method of testing, its evaluation result following table institute Show:
Table 1
From test data table 1 as can be seen that the fire-retardant backboard of solar energy that the present invention provides has preferable fire resistance, real The fire resistance applying example 1 ~ 4 is substantially better than comparative example 1 and 2.And there is good caking property and weatherability.Tack coat and eva, Pvb etc. has good adhesive property.Additionally, embodiment 1 ~ 4 also has excellent weather resistance.

Claims (8)

1. the fire-retardant backboard of a kind of solar module, the weathering resistance coatings by basal layer, being coated on substrate surface and coating Tack coat composition in another surface of basal layer；It is characterized in that, the thickness of described basal layer is 120-300 μm, by substrate material Material composition, described base material is selected from polyethylene terephthalate (pet), polybutylene terephthalate (PBT) (pbt), gathers (ethylene naphthalate) (pen), polyamide (pa)；Described weathering resistance coatings thickness is 10 μm -60 μm, by containing of 100 weight portions Fluororesin, the firming agent of 10 ~ 30 weight portions, the curing accelerator of 0.5 ~ 2 weight portion, the fire retardant of 10 ~ 100 weight portions, 0 ~ 40 The filler of weight portion, the auxiliary agent of 1 ~ 8 weight portion, the solvent composition of 50 ~ 150 weight portions；Described fire retardant be by tetrabromobisphenol a and The mixture that antimony oxide forms according to mass ratio 30:20；Described adhesive layer thickness is 5 μm -30 μm, by 100 weight portions Matrix resin, the firming agent of 5 ~ 25 weight portions, the curing accelerator of 0.5 ~ 2 weight portion, the filler of 0 ~ 40 weight portion, 1 ~ 8 weight The auxiliary agent of part, the solvent composition of 50 ~ 150 weight portions.
2. solar module according to claim 1 with fire-retardant backboard it is characterised in that described fluorine resin is by inclined Fluorothene (pvdf), trifluoro-ethylene-vinyl ether co-polymer, trifluoro-ethylene-vinyl ester copolymer, tetrafluoroethylene-Ethylene base One or more of ether copolymer, tetrafluoroethylene-Ethylene base ester copolymer mix composition according to any proportioning.
3. solar module according to claim 1 with fire-retardant backboard it is characterised in that described matrix resin is by gathering One or more of urethane, acrylic resin, polyester resin mix composition according to any proportioning.
4. solar module according to claim 1 with fire-retardant backboard it is characterised in that described firming agent is by isocyanide One or more of acid esters, amino resins, blocked isocyanate, blocked isocyanate, tripolycyanamide are according to any proportioning Mixing composition.
5. solar module according to claim 1 with fire-retardant backboard it is characterised in that described filler is by titanium white One or more of powder, white carbon black, flatting silica mix composition according to any proportioning.
6. solar module according to claim 1 with fire-retardant backboard it is characterised in that described auxiliary agent is by disperseing One or more of agent, levelling agent, defoamer, UV absorbent, light stabilizer mix composition according to any proportioning.
7. solar module according to claim 1 with fire-retardant backboard it is characterised in that described solvent by toluene, One or more of dimethylbenzene, ethyl acetate, butyl acetate, propylene glycol methyl ether acetate, butanone mix according to any proportioning Composition.
8. solar module according to claim 1 with fire-retardant backboard it is characterised in that described curing accelerator is Organic tin curing accelerator.
CN201410819528.1A 2014-12-25 2014-12-25 Anti-flaming backboard for solar cell module Active CN104538473B (en)

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