CN109904244A - A kind of photovoltaic building materials and preparation method thereof - Google Patents

A kind of photovoltaic building materials and preparation method thereof Download PDF

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Publication number
CN109904244A
CN109904244A CN201910098475.1A CN201910098475A CN109904244A CN 109904244 A CN109904244 A CN 109904244A CN 201910098475 A CN201910098475 A CN 201910098475A CN 109904244 A CN109904244 A CN 109904244A
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China
Prior art keywords
building materials
surface layer
photovoltaic building
layer
light diffusing
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CN201910098475.1A
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CN109904244B (en
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张冷
张伟
李永武
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Guangzhi Science And Technology Development (kunshan) Co Ltd
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Guangzhi Science And Technology Development (kunshan) Co Ltd
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Priority to CN201910098475.1A priority Critical patent/CN109904244B/en
Publication of CN109904244A publication Critical patent/CN109904244A/en
Priority to KR1020217027076A priority patent/KR20210122270A/en
Priority to PCT/CN2019/104876 priority patent/WO2020155628A1/en
Priority to US17/427,514 priority patent/US20220140773A1/en
Priority to CA3131439A priority patent/CA3131439A1/en
Priority to EP19912647.5A priority patent/EP3920241A4/en
Priority to JP2021544514A priority patent/JP7328341B2/en
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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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

Abstract

The invention discloses a kind of photovoltaic building materials and preparation method thereof, the photovoltaic building materials include surface layer and electric layer；It is 30%~85% that the surface layer is weighted and averaged transmitance in 300nm~1300nm wave-length coverage, and mist degree is 10%~95%.The raw material of preparation surface layer contains solidification mother liquor, light diffusing agent and colorant.The method that the present invention prepares photovoltaic building materials, mother liquor, light diffusing agent will be solidified first, in accordance with ratio by mainly comprising the following steps that mixes with colorant, is configured to surface layer mixed raw material；Surface layer is prepared on electric layer again, the surface layer is directly to be made in power generation layer surface covering surface layer mixed raw material solidification.It is beautiful that the surface layer is formed by outer surface quality after hardening, abundant expression forms multiplicity, it can be formed by adjusting the formula of surface layer substance and will not change architectural style and urban landscape with the consistent appearance of construction material, the appearance for being installed on building, have broad application prospects.

Description

A kind of photovoltaic building materials and preparation method thereof
Technical field
The invention belongs to building materials fields, and in particular to a kind of photovoltaic building materials and preparation method thereof.
Background technique
The new energy that can be utilized at present by people includes wind energy, solar energy, ocean energy, geothermal energy etc., and Workplace is equal It is located on suburb meagrely-populated, that energy consumption is few, desert or ocean, and in the city that the density of population is big, energy consumption is concentrated In then fresh see new energy less.This aspect is the distribution of new energy itself intensively not caused by city, such as wind energy, ocean Can, the concentrated area of geothermal energy and it be not suitable for human living；It on the other hand is then incomplete, no by the utilization form of new energy It is enough rationally caused by, it is widely distributed such as solar energy, also have in the big city of the density of population largely using solar energy, But current city and solar energy mainly in combination with mode --- Photovoltaic Building Integration (BIPV), used photovoltaic module one As present navy blue, grey, black, color, texture, skin texture are unsightly, it is difficult to merge with building height, be not achieved build to beauty Requirement, these disadvantages limit the extensive use of photovoltaic module under construction, and then limit solar energy in city It is widely applied.
Based on this, patent application CN200420085961 is using different-thickness and the optics antireflective film of type, so that crystal Different colours are presented in silicon solar cell；Light is added in patent application CN201020272089 between substrate of glass and transparent conductive film Media coating is learned, so that optical medium film layer and clear glass substrate, transparent conductive film, amorphous silicon film is formed one can be to the sun The passive filters system of spectrum progress selective reflecting and absorption.When incident angle changes, the color of cladding glass can be sent out Changing, i.e., the cladding glass color seen from a front surface and a side surface can be different.Patent application Under the premise of not changing cell piece, the color by changing EVA or PVB glue film reaches and building face CN201220200568 The matching of color.
Although it is colored that above-mentioned patent can be such that photovoltaic module presents, the application range of photovoltaic module is widened, this The texture that a little photovoltaic modulies are presented is similar to glass, and texture, skin texture are single, these disadvantages still limit photovoltaic module and building Build the application in field.
Summary of the invention
For various defects existing for photovoltaic cell in the prior art, the object of the present invention is to provide one kind for building neck The photovoltaic building materials in domain, texture, the skin texture of this photovoltaic Building Material House presentation are no longer limited to the texture and skin texture of glass, can show As the appearance that the lithotomes such as marble, the granite routinely seen are presented.By changing this photovoltaic building materials face The formula of layer material can make building materials that the colorful appearance and texture abundant and skin texture that various people want be presented.It is this Photovoltaic building materials can develop and use sufficient solar irradiation, tool while not destroying architectural appearance and style on building Have broad application prospects.
The specific technical solution of the present invention is as follows:
The present invention provides a kind of photovoltaic building materials, and the photovoltaic building materials include surface layer and electric layer.
It is 30%~85% that the surface layer is weighted and averaged transmitance in 300nm~1300nm wave-length coverage, and mist degree is 10%~95%.
Preferably, the face stock contains solidification mother liquor, light diffusing agent and colorant.
Preferably, the solidification mother liquor includes organic silicon emulsion, aqueous silicate solution, polyaminoester emulsion, polypropylene Yogurt liquid contains one of carbon-fluorine bond emulsion polymerization or a variety of.
Preferably, the light diffusing agent includes one of polymethyl methacrylate, polystyrene and organosilicon Or it is a variety of.
Preferably, the light diffusing agent is spherical shape, and size is distributed as 0.8 μm~7 μm.
Preferably, the light diffusing agent is 0.3%~4% solidifying the mass fraction in raw material.
According to Mie theory, when spheroidal particle is dispersed in resin matrix, the scattered light intensity and particle diameter of system with And particle is closely related relative to surrounding medium refractive index.In a certain range, the partial size of particle is bigger, and refractive index difference is got over Greatly, scattered light intensity is bigger.In the present invention, used light diffusing agent is organic light diffusing agent, these light diffusing agent material sheets Body is to most of transmission of photons, and the refractive index of the emulsion media of the refractive index of light diffusing agent and dispersion light diffusing agent is close, Its relative index of refraction is 0.90~0.99 or 1.01~1.10, although have passed through multiple light refraction, the loss of transmitted light compared with It is few, play high saturating effect；Meanwhile because multiple refraction has occurred in light, direction and the incident light of the emergent light of surface layer are penetrated Deviation occurs for direction, visually can't see the subsequent solar cell layer of surface layer, plays the role of blocking to the appearance of solar cell.
Preferably, the colorant includes one of pigment, dyestuff or a variety of.
Preferably, after the dyestuff is mixed with mother liquor, the high grade of transparency, high-strength mixed liquor can be obtained.
Preferably, the refractive index of the pigment be 1.4~2.5, according to pigment refractive index it is too high, can be to saturating Lightness has an adverse effect.
Preferably, the partial size of the pigment is less than or equal to 300nm.Lesser pigment particle size is added into mother liquor, In the case where certain color is presented, be conducive to obtain the higher solidification mixed liquor of transparency.When pigment particle size size is less than incidence Optical wavelength 1/4 when, light can diffraction, pigment particles will not interference light in process wherein, therefore surface layer covering power is lower, And transmitance is higher.
Preferably, the colorant includes pearlescent pigment.
Preferably, the pigment include heat discoloration pigment and or sensitization discoloration pigment.
Preferably, the surface thickness is 0.02~5mm.
Preferably, the surface layer of the photovoltaic building materials prepared by the present invention, surface layer water absorption rate≤8%, 50 time freeze thawing follow Ring is not in burst and crackle, artificial weathering ageing resistance >=600h, stain resistance≤20% are resistant to chemical etching without destruction Property complies with standard, abrasion resistance >=1000 time, adhesive force >=1MPa between surface layer and electric layer, Mohs' hardness >=3 of surface layer, Meet the performance requirement in building field to surface layer.
Preferably, the electric layer is solar module, including crystal silicon solar battery component or film sun electricity One of pond component.The crystal silicon solar battery component is commercial product, including substrate, glue film, solar cell layer, protection Layer；The thin film solar battery module includes substrate, solar cell layer, protective layer.
Preferably, the electric layer is made products, including substrate, solar cell layer and protective layer.
Preferably, the photovoltaic building materials include electrode.
Preferably, the substrate and solar cell layer are well-known in the art.
Preferably, the substrate includes one of glass, metal plate, flexible plastic film or ceramic tile, electric layer Directly deposit on the base layer.
Preferably, thin film solar cell used in the electric layer include CIGS solar cell, GaAs too Positive electricity pond, amorphous silicon solar cell, cadmium-Te solar battery, dye-sensitized solar cells, copper-zinc-tin-sulfur solar cell or calcium titanium Mine solar cell.
Preferably, the photovoltaic building materials protective layer include ceramic membrane, ethylene-vinyl acetate copolymer (EVA), Polyvinyl butyral (PVB), polyethylene-butene copolymer (POE), silica gel, polyethylene (PE), polyethylene-tetrafluoroethene are total Polymers (ETFE), fluorinated ethylene propylene copolymer (FEP), PVDF membrane (PVDF), polyethylene terephthalate (PET), one or more of unorganic glass, organic glass (PMMA) and polycarbonate (PC).
Wherein, the protective layer only has ceramic membrane, and the ceramic membrane that the protective layer uses includes oxide, nitride One or more of with fluoride.The oxide includes one or more of silica, zinc oxide and titanium oxide；It is described Nitride includes aluminium nitride and/or silicon nitride；The fluoride includes polytetrafluoroethylene (PTFE).
Wherein, when the protective layer includes glue film, i.e. one or more of EVA, PVB, POE and silica gel, the guarantor Sheath further includes cephacoria；
Wherein, cephacoria includes glass and/or high molecular material；
Preferably, the high molecular material includes one in PMMA, PC, ETFE, PVDF, FEP, PET and PET/PE Kind is several.
Preferably, the ceramic membrane with a thickness of 0.4~1000 μm.
Preferably, the ceramic membrane can be prepared using sputtering method, chemical vapour deposition technique.
Preferably, the combination of the surface layer, electric layer and the first substrate can be pasted in the second substrate, and second Substrate include glass, metal plate, cement base plate, wood plank, bamboo board, stone plate, concrete slab, plastic plate, ceramic tile or watt One or more of piece.
The present invention provides a kind of preparation method of photovoltaic building materials, comprises the following steps that
1) proportionally solidification mother liquor, light diffusing agent are mixed with colorant, is configured to surface layer mixed liquor；
2) surface layer is prepared on electric layer, the surface layer is directly to be made in power generation layer surface Covering Liguid solidification.
Preferably, the surface layer can be using hand spray, automatic spraying, brushing, spin coating, printing, printing, stream Liquid material is prepared on electric layer by slurry, round brush, blade coating or the method for coating.
Preferably, solidification temperature described in step 2) is -10 DEG C~90 DEG C, and curing time is 0.2s~48h.
Certain methods prepare surface material and need to carry out under the high temperature conditions, and high temperature can generate damage to photovoltaic module. Present invention improves over the formulas of surface material, and surface material can be made to solidify at -10 DEG C~90 DEG C；In addition, passing through control surface layer Thickness and formula can also make surface layer maintain higher transmitance.
Above-mentioned preparation method whole process carries out at a lower temperature, without carrying out high-temperature process, can effectively reduce energy Consumption also can guarantee that battery is injury-free.
Compared with prior art, present invention has an advantage that
1) present invention prepares surface layer on the surface of solar cell, and solar battery surface can be made to show the matter of conventional building materials Sense, while guaranteeing power generation, the transfer efficiency of solar cell hardly declines；
2) the surface layer solidification temperature that the present invention uses will not cause to damage between -10 DEG C~90 DEG C to photovoltaic module, can To form the higher surface layer of hardness on photovoltaic module；
3) surface layer prepared by the present invention can not only be combined firmly with photovoltaic module, but also be had preferable resistance to Grind performance；
4) surface layer prepared by the present invention has preferable weatherability, can be on active service many decades in external wall；
5) there is surface layer prepared by the present invention stronger compactness and corrosion resistance therefore can will be wrapped up in surface layer Solar cell be effectively isolated out with the external world；
6) the power generation building materials performance prepared by the present invention is stablized, bright in luster, decorative good, before wide application Scape.
Detailed description of the invention
Fig. 1 is photovoltaic construction material structure figure of the present invention, and 1 is surface layer；2 be electric layer；
Fig. 2 is the side block diagram of photovoltaic building materials shown in Fig. 1, and 1 is surface layer；2-1 is ceramic membrane；2-2 is solar cell Layer；2-3 is glue film；2-4 is substrate；2*2 is negative electrode face；2*3 is positive electrode face；E1 is to draw negative electrode；E2 is to draw just Electrode.
Specific embodiment
The present invention will be further explained and be illustrated in conjunction with attached drawing as follows, be used only as explanation of the invention and Not limit.
Embodiment 1
Photovoltaic building materials substrate is provided with electric layer for flexible stainless steel foil with a thickness of 0.2mm, and is provided with conducting wire Extraction electrode.Surface layer is provided on electric layer.
Electric layer preparation method is specific as follows:
It is put into magnetron sputter after flexible stainless steel foil substrate is cleaned up.To prevent in stainless steel element to the sun It is spread in battery, first sputters one layer 0.5 μm of the barrier layer WTi.Working gas uses Ar gas, and sputtering pressure 0.7Pa, background is true Sky is 2.0 × 10-3Pa, substrate does not heat when sputtering.Mo film is prepared using Sanya layer process, first layer sputtering pressure is 1.5Pa, Second layer sputtering pressure is 0.6Pa, and third layer sputtering pressure is 1.5Pa.1.2~2 μm are deposited by sputtering method on Mo film CIGS thin film, sputtering pressure 0.7Pa, base vacuum be 1.5 × 10-3Pa then carries out selenized annealing processing.After selenizing Film be placed in cadmium sulfate, in the mixed solution of thiocarbamide and ammonium hydroxide, 30~50nmCdS is deposited at 70 DEG C.Then, again will Film is placed in sputtering chamber, and working gas uses O2+ Ar, sputtering pressure 0.7Pa, base vacuum are 2.0 × 10-3Pa splashes It is 150~200 DEG C that base reservoir temperature is kept when penetrating, respectively deposition intrinsic ZnO film and AZO film.Method of evaporating is finally used again NiAl grid is deposited, thin film solar cell plate flexible is made.Then, depositing a layer thickness by radio frequency sputtering method is 3 μm Aluminium nitride ultimately forms electric layer.
Surface layer is prepared using Method of printing, face stock mixed liquor contains solidification mother liquor, light diffusing agent and colorant.Solidification Mother liquor 90 parts of self-crosslinking silicopropyl emulsion and organosilicon made of 21 parts of the silicone acrylic emulsion of soap-free polymerization, nucleocapsid structure copolymerization 70 parts of grafted acrylate lotion, light diffusing agent is using spherical polymethyl methacrylate, and partial size is 0.8 μm, light diffusing agent Mass fraction in mixed liquor is 0.3%.Colorant includes malachite and ultramarine purple dye, and particle diameter distribution is 30~ 150nm, pigment accounting in mixed liquor is 0.5%, in addition, further including 40 parts of water, 5040 dispersing agents in face stock mixed liquor 1.5 parts, 2.5 parts of M30 fungicide.The surface thickness of preparation is 0.02mm, and solidification temperature is 90 DEG C, curing time 1h.Institute The transmitance of the surface layer of preparation is 85%, mist degree 52%.
Embodiment 2
A kind of photovoltaic building materials, substrate is provided with electric layer for glass with a thickness of 2.0mm, and is provided with conducting wire and draws Electrode out.The preparation process of battery is similar to embodiment 1, except that changing CIGS thin film into Cu2(ZnSn)(SSe)4, The aftertreatment technology of film is changed to selenizing or vulcanization.Matcoveredn is set in battery layers, and protective layer is EVA and glass.
Surface layer is prepared by hand spray method, and face stock mixed liquor contains solidification mother liquor, light diffusing agent With colorant.Solidify mother liquor and use 45 parts of waterglass, be the mixing of potassium water glass and sodium silicate, its ratio be 2:1, light diffusions Agent uses organosilicon light diffusing agent, and partial size is 7 μm, and mass fraction of the light diffusing agent in mixed liquor is 2%.Colorant includes Phthalocyanine is red and zinc white, and pigment accounting in mixed liquor is 0.9%.In addition, further including 20 parts of filler in face stock mixed liquor, adopt It further include 1 part of Silica hydrogel with the mixing of talcum powder, calcium carbonate.
Surface thickness made from the present embodiment is 2mm, and solidification temperature is 20 DEG C, curing time 2h.
For photovoltaic building materials surface layer for the transmittance curve of the visible light of 300~1300nm, weighted average transmitance is 35%, Mist degree is 10%.
The protective layer that also can get the photovoltaic building materials of the application in other manners, such as by liquid mixture to scratch, beat Print, the form of stream paddle are coated to the surface of electric layer.
Embodiment 3
A kind of photovoltaic building materials, substrate is provided with battery layers for ceramic tile with a thickness of 8.0mm, and is provided with conducting wire and draws Electrode out.Battery layers have CdTe solar battery structure, and specific preparation process is as follows: the substrate that will first clean up, which is placed in, splashes It penetrates in instrument, working gas is Ar gas, and sputtering pressure 0.7Pa, base vacuum is 1.5 × 10-3Pa, sputtering sedimentation one in substrate Layer transparent conductive oxide indium tin thin film.CdS slurry is then applied as by film using method for printing screen, at 90~120 DEG C 1~3h is dried, then in N20.5~2h is sintered under atmosphere, sintering temperature is 650~710 DEG C.Then by the slurry containing CdTe powder Liquid is printed to being sintered 1h on CdS.Carbon electrode is finally printed on CdTe and Ag slurry is used as extraction electrode.It is provided in battery layers Protective layer, protective layer is PVB and ETFE, then prepares surface layer on the protection layer, surface thickness 0.1mm, and raw material is as follows.
Face stock mixed liquor contains solidification mother liquor, light diffusing agent and colorant.60 parts of mother liquor of solidification, using fluorocarbon resin The mixing of lotion and polyacrylate emulsion, mixed proportion 3:1, light diffusing agent use polystyrene light diffusing agent, partial size It is 2 μm, mass fraction of the light diffusing agent in mixed liquor is 4%.Colorant includes ultramarine blue, organic green and toluidine red mixed It closes, pigment accounting in mixed liquor is 1.5%.In addition, further including 15 parts of filler in face stock mixed liquor, using wollastonite Powder, silica flour and bentonitic mixing, weight ratio 1:1.5:0.8 further include 0.2 part of dimethyl sulfoxide, polycarboxylate sodium 1.1 Part, 0.3 part of silicone emulsion.
The liquid solution for constituting surface layer is coated to the surface of electric layer, solidification temperature in the form of spraying, printing, flow paddle Degree is 90 DEG C, curing time 0.2s.Transmittance curve of the surface layer for the visible light of 300~1300nm, weighted average transmission Rate is 52%, mist degree 50%.
Embodiment 4
A kind of photovoltaic building materials, substrate are provided with electric layer, battery layers for aluminium nitride ceramics with a thickness of 10.0mm Amorphous silicon battery is selected, and is provided with conducting wire extraction electrode.Matcoveredn is set in battery layers, and the material of protective layer is ceramics Thin film silicon oxide silicon, with a thickness of 15 μm, silica is obtained by reactive sputtering: vacuum chamber is evacuated to 2.0 × 10-3Pa After start to work.It is sputtered using 600W invariable power, 0.6Pa sputtering pressure, sputtering atmosphere Ar+O2, wherein Ar:O2For 3:1, target Material is the monocrystalline silicon of 6N purity, target-substrate distance 60mm.
Surface layer is prepared by printing process, and by weight, face stock mixed liquor contains solidification mother liquor, light Diffusant and colorant.Solidify mother liquor and use 75 parts of waterglass, is the mixing of potassium water glass and sodium silicate, its ratio be 1:1, Light diffusing agent uses polymethyl methacrylate light diffusing agent, and partial size is 1 μm, mass fraction of the light diffusing agent in mixed liquor It is 3%.Colorant includes that phthalocyanine is red and phlogopite, and pigment accounting in mixed liquor is 1.0%.In addition, face stock mixed liquor In further include 20 parts of filler, using wollastonite in powder, alumina silicate, kaolinic mixing, weight ratio 3:2:5 further includes that silicon is solidifying 0.5 part of glue.
For photovoltaic building materials surface layer for the transmittance curve of the visible light of 300~1300nm, weighted average transmitance is 45%, Mist degree is 40%.
In other manners also can get the application photovoltaic building materials protective layer, such as by liquid mixture to spray, silk Print, the form of stream paddle are coated to the surface of electric layer.
Embodiment 5
A kind of photovoltaic building materials select polysilicon members product, and substrate is ceramic tile of the water absorption rate less than 1%, with a thickness of 5mm is provided with conducting wire extraction electrode on electric layer.Matcoveredn is set in battery layers, and protective layer is that SiO 2-ceramic is thin Film.
Surface layer is prepared by the method sprayed automatically, face stock mixed liquor contain solidification mother liquor, light diffusing agent with Colorant.70 parts of mother liquor of solidification, using the mixing of fluorocarbon resin lotion and polyurethane lotion, mixed proportion 1:1, light diffusion Agent uses polystyrene light diffusing agent, and partial size is 2 μm, and mass fraction of the light diffusing agent in mixed liquor is 1%.Colorant is adopted With pearlescent pigment, pigment accounting in mixed liquor is 1.25%.In addition, further including 10 parts of filler in face stock mixed liquor, adopt With the mixing of silica flour and blanc fixe, weight ratio 2:3 further includes 0.4 part of glycerol, 1.0 parts of polycarboxylate sodium.
Surface thickness is 0.3mm, and solidification temperature is 50 DEG C, curing time 1s.For the visible light of 300~1300nm Transmittance curve, weighted average transmitance are 45%, mist degree 95%.Photovoltaic construction material structure schematic diagram is as shown in Figure 1, 2.
Embodiment 6
A kind of photovoltaic building materials select commercially available monocrystalline silicon battery subassembly product.Its substrate is glass, with a thickness of 2mm, electric layer On be provided with conducting wire extraction electrode, and matcoveredn is set, protective layer includes silica gel and cephacoria, and cephacoria selects ETFE.
Surface layer is prepared using spin coating method, face stock mixed liquor contains solidification mother liquor, light diffusing agent and colorant.Solidification Mother liquor 70 parts of self-crosslinking silicopropyl emulsion and organosilicon made of 28 parts of the silicone acrylic emulsion of soap-free polymerization, nucleocapsid structure copolymerization 110 parts of grafted acrylate lotion, light diffusing agent uses spherical polystyrene, and partial size is 2.5 μm, and light diffusing agent is in mixed liquor In mass fraction be 1%.Colorant includes the mixing of Fast Pink lake and acid lake blue color lake, and dyestuff accounts in mixed liquor Than being 0.9%, in addition, further including 2 parts of 250HBR cellulose, 2.5 parts of M30 fungicide in face stock mixed liquor.The face of preparation Layer is with a thickness of 0.05mm.Solidification temperature is -20 DEG C, curing time 30h.
The power generation building materials surface layer that the present embodiment obtains its be for the weighted average transmitance of the light of 300~1300nm 55%, mist degree 70%.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention Scope of the claims in.

Claims (14)

1. a kind of photovoltaic building materials, which is characterized in that the photovoltaic building materials include surface layer and electric layer；The surface layer 300nm~ Weighted average transmitance is 30%~85% in 1300nm wave-length coverage, and mist degree is 10%~99%.
2. photovoltaic building materials according to claim 1, which is characterized in that the surface layer is prepared by liquid curing, former Material contains solidification mother liquor, light diffusing agent and colorant.
3. photovoltaic building materials according to claim 2, which is characterized in that the solidification mother liquor includes organic silicon emulsion, silicic acid Saline solution, polyacrylate emulsion, contains one of carbon-fluorine bond emulsion polymerization or a variety of at polyaminoester emulsion.
4. photovoltaic building materials according to claim 2, which is characterized in that the light diffusing agent includes poly-methyl methacrylate One of ester, polystyrene and organosilicon are a variety of.
5. photovoltaic building materials according to claim 2 or 4, which is characterized in that the size of the light diffusing agent is 0.8 μm~7 μ m。
6. photovoltaic building materials according to claim 2 or 4, which is characterized in that the mass fraction of the light diffusing agent is 0.3% ~4%.
7. according to any photovoltaic building materials of claim 2~4, which is characterized in that the colorant includes pigment and/or dye Material.
8. photovoltaic building materials according to claim 7, which is characterized in that the refractive index of the pigment is 1.4~2.5.
9. photovoltaic building materials according to claim 7, which is characterized in that the partial size of the pigment is less than or equal to 300nm.
10. photovoltaic building materials according to claim 1, which is characterized in that the surface thickness is 0.02~5mm.
11. photovoltaic building materials according to claim 1, which is characterized in that the electric layer includes crystal silicon solar battery component Or one of thin film solar battery module.
12. photovoltaic building materials according to claim 1, which is characterized in that the electric layer include substrate, solar cell layer and Protective layer.
13. a kind of method for preparing photovoltaic building materials, comprises the following steps that
1) proportionally solidification mother liquor, light diffusing agent are mixed with colorant, is configured to surface layer mixed raw material；
2) surface layer is prepared on electric layer, the surface layer is directly to be made in power generation layer surface covering surface layer mixed raw material solidification.
14. according to the method for claim 13, which is characterized in that the solidification temperature of the surface layer is -10 DEG C~90 DEG C, Gu The change time is 0.2s~48h.
CN201910098475.1A 2019-01-31 2019-01-31 Photovoltaic building material and preparation method thereof Active CN109904244B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201910098475.1A CN109904244B (en) 2019-01-31 2019-01-31 Photovoltaic building material and preparation method thereof
KR1020217027076A KR20210122270A (en) 2019-01-31 2019-09-09 Power generation building materials and manufacturing method thereof
PCT/CN2019/104876 WO2020155628A1 (en) 2019-01-31 2019-09-09 Power generation building material and manufacturing method therefor
US17/427,514 US20220140773A1 (en) 2019-01-31 2019-09-09 Power-generating building materials and preparation process thereof
CA3131439A CA3131439A1 (en) 2019-01-31 2019-09-09 Power-generating building materials and preparation process thereof
EP19912647.5A EP3920241A4 (en) 2019-01-31 2019-09-09 Power generation building material and manufacturing method therefor
JP2021544514A JP7328341B2 (en) 2019-01-31 2019-09-09 Power generation building material and its manufacturing method

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CN115602747A (en) * 2022-11-03 2023-01-13 新源劲吾（北京）科技有限公司（Cn） Photovoltaic module with partially covered pattern and application thereof

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WO2020155628A1 (en) * 2019-01-31 2020-08-06 光之科技发展(昆山)有限公司 Power generation building material and manufacturing method therefor
CN115602747A (en) * 2022-11-03 2023-01-13 新源劲吾（北京）科技有限公司（Cn） Photovoltaic module with partially covered pattern and application thereof

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