CN203617306U - Solar energy backboard, packaging structure and solar module - Google Patents
Solar energy backboard, packaging structure and solar module Download PDFInfo
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- CN203617306U CN203617306U CN201320554526.5U CN201320554526U CN203617306U CN 203617306 U CN203617306 U CN 203617306U CN 201320554526 U CN201320554526 U CN 201320554526U CN 203617306 U CN203617306 U CN 203617306U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a solar energy backboard, a packaging structure and a solar module, wherein the solar energy backboard comprises an adhesion layer, a main body layer and a UV-resistant layer; the main body layer is set between the adhesion layer and the UV-resistant layer; the adhesion layer is of sea-lake-island cladding structure; the sea-lake-island cladding structure comprises several island units made of main body material of the main body layer, several lake units made of compatibilizer material and sea units made of adhesion material, wherein, the sea units clad the lake units; and the lake units clad the island units. By the utility model, excellent adhesion performance between the solar energy backboard and stuffed resin can be effectively guaranteed, therefore, the utility model is especially suitable for application in solar energy backboards that have bad adhesion performance with the stuffed resin.
Description
Technical field
The utility model belongs to photovoltaic and manufactures field, has been specifically related to a kind of solar energy backboard, encapsulating structure and solar module, is especially applicable to being applied to the solar energy backboard poor with potting resin adhesion property.
Background technology
Along with the development of modern industry, global energy crisis and atmosphere polluting problem become increasingly conspicuous, and therefore people replace traditional energy gradually in the urgent need to finding regenerative resource.And solar energy is as the regenerative resource of core, therefore in recent years, photovoltaic field more and more comes into one's own, and has obtained and develop rapidly.Wherein, solar module is as the core texture that the energy of sunlight is directly changed into electric energy; its process structure mainly comprises: first multiple solar battery sheets are carried out to series and parallel connection, then the solar battery sheet that completes series and parallel connection is carried out to packaging protection.Encapsulating structure mainly comprises: transparency carrier; the general glass that adopts is made; for covering the sensitive surface of solar battery sheet; employing backboard is protected, the back side of support solar cell piece, adopts potting resin (being generally EVA plastics) that the gap between transparency carrier, backboard and solar battery sheet is filled simultaneously.Because solar energy backboard needs long term exposure in outdoor environment, (business is 25 years with the instructions for use of solar module at present), therefore its should possess high mechanical properties, good dimensional stability, anti-flammability, high-insulation and with the basic function of the high tack of potting resin outside, also should there is very excellent, permanent comprising as the weather resistance of heat-resisting, hydrolysis and resistance to ultraviolet etc., could meet the test in useful life that solar module reaches 25 years.
In prior art, conventional solar energy backboard mainly comprises three kinds: TPT type solar energy backboard, TPE type solar energy backboard and PPP type solar energy backboard.Wherein, after TPT type solar energy backboard is the biaxial tension PET film double spread adhesive for polyurethane by one deck 250 μ m; at the two sides of the PET film PVF film of compound 30 μ m respectively; PVF film has superior outdoor environment weatherability (can reach more than 40 years); effectively protected the PET as backboard main material, but the material cost of PVF is high.Wherein, after TPE type solar energy backboard is the biaxial tension PET film double spread adhesive for polyurethane by one deck 250 μ m, at the PVF film of the compound 30 μ m of lower surface of PET film, and PE or the eva film of surface recombination 50 μ m thereon, TPE type solar energy backboard has good weatherability, and with respect to TPT type solar energy backboard, its cost of manufacture is lower, is also in existing market, to use more type; Wherein, after PPP solar energy backboard is the biaxial tension PET film double spread adhesive for polyurethane by one deck 250 μ m, at the hydrolysis PET film of the compound 50 μ m of lower surface of PET film, and the PE film of surface recombination 50 μ m thereon, PPP type solar energy backboard cost is minimum, but its weatherability, not as TPT type solar energy backboard and TPE type solar energy backboard, therefore makes land used less in existing market.
From finding out above, the material of main part that solar energy backboard adopts is at present PET, in order to guarantee that solar energy backboard possesses high mechanical properties, good dimensional stability, anti-flammability and high-insulation, but owing to containing a large amount of ester groups in PET molecular backbone, there is good compatibility with glassware for drinking water, easily produce water plasticising, even if the moisture of trace also can cause the degraded of PET molecular backbone, thereby cause the mechanical performance of PET to be damaged, temperature can make above-mentioned degradation process obviously accelerate while rising, therefore water and heat are the main causes that causes PET mechanical strength sharply to decline.In addition, ultra-violet radiation also can make the molecular weight of PET, strength and elongation significantly decline, and degree of crystallinity increases, thereby the mechanical performance of PET material is damaged.And generally only have 30 μ m owing to being positioned at the protective layer thickness of pet layer lower surface in solar energy backboard; in long outdoor overall situation is used; aqueous vapor and oxygen still can penetrate into the pet layer in the middle of being positioned at by lower surface protective layer; cause pet layer degraded, deteriorated; final and potting resin departs from; its protection and support function to solar battery sheet was lost efficacy, and then cause the generating efficiency of solar module to reduce and even solar module global failure.
Therefore be necessary existing solar energy backboard to propose to improve, guarantee it possess high mechanical properties, good dimensional stability, anti-flammability, high-insulation and with the prerequisite of the high tack of potting resin under, also possess excellence, permanent comprising as the weather resistance of heat-resisting, hydrolysis and resistance to ultraviolet etc. simultaneously.
Prior art at present, the Chinese utility model patent that is CN102414838A as publication number discloses and has adopted PPE material to replace the PET material of prior art as the material of main part of solar energy backboard, the technical problem that although this patented technology has avoided that existing conventional solar energy backboard exists is heat-resisting, anti-hydrolytic performance is poor, but PET material is except existing the poor technical problem of ultra-violet resistance energy, also have the poor technical problem of itself and potting resin tack, this makes PPE material be subject to larger restriction as the material of main part of solar energy backboard.
Therefore comprehensive above content, still solves above technical problem in the urgent need to seeking optimisation technique scheme.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of solar energy backboard, encapsulating structure and solar module, effectively guarantee to possess excellent adhesion property between solar energy backboard and potting resin, therefore the utility model is especially applicable to being applied to the solar energy backboard poor with potting resin adhesion property.
To achieve these goals, the technical scheme that the utility model provides is as follows:
A kind of solar energy backboard, described solar energy backboard comprises adhesion layer, body layer and the layer of resistance to ultraviolet, described body layer is between described adhesion layer and the described layer of resistance to ultraviolet, described adhesion layer Wei Haihu island clad structure, described Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer, some unit, lake being formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated described lake, described extra large unit, unit, coated described island, unit, described lake.
Preferably, the described layer of resistance to ultraviolet/and described adhesion layer in contain some microballons, the particle size range of described microballon is 0.5-10 μ m.
Preferably, the thickness of described adhesion layer is 0.01-0.1mm, and the thickness of described body layer is 0.1-0.3mm, and the outer field thickness of described resistance to purple is 0.01-0.075mm.
Preferably, described solar energy backboard is coextrusion mold structure.
Preferably, the material of main part of described body layer is PPE resin; Described body layer specifically comprises:
The PPE resin of 40-95wt%;
The ASA resin of 5-40wt%.
Preferably, the described layer of resistance to ultraviolet comprises the resin of resistance to ultraviolet of 40-90wt% and the uvioresistant additive of 5-40wt%, the described resin of resistance to ultraviolet is selected from any one in fluorine resin, PA resin and PET resin, and described uvioresistant additive is selected from any one or a few the mixing in ASA resin, Chinese white, black pigment and microballon.
Preferably, an encapsulating structure for solar module, comprises glass, potting resin and solar energy backboard, wherein, described solar energy backboard adopts solar energy backboard as above, and the body layer of described solar energy backboard is attached on described potting resin by described adhesion layer.
Preferably, described adhesion layer comprises the polyolefin resin of 20-70wt%, the PPE resin of 20-50wt%, the bulking agent of 10-40wt%.
Preferably, described adhesion layer further comprises the uvioresistant additive of 5-30wt% and/or the anti-deformation additive of 5-30wt%, described uvioresistant additive is selected from any one or a few the mixing in ASA resin, Chinese white, black pigment and microballon, and described anti-deformation additive is the rubber resin with nucleocapsid structure.
Preferably, a kind of solar module, comprise some solar battery sheets that mutual series and parallel connects, and for encapsulating the encapsulating structure of described solar battery sheet, wherein, described encapsulating structure adopts encapsulating structure as above.
The utility model proposes solar energy backboard and be set to comprise adhesion layer, body layer and the outer field three-decker of resistance to purple, body layer is between adhesion layer and the layer of resistance to ultraviolet, adhesion layer Wei Haihu island clad structure, Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer, some unit, lake that formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated lake, unit, sea, unit, coated island, unit, lake, because the extra large unit being formed mutually by attachment material in adhesion layer and potting resin have very good tack, the unit, island being formed mutually by the material of main part of body layer in adhesion layer has very good tack with body layer again, the unit, lake simultaneously being formed mutually by bulking agent material in adhesion layer makes again to carry out very well between the extra large unit being formed mutually by attachment material and the unit, island being formed mutually by the material of main part of body layer compatible, final solar energy backboard and potting resin are realized very good adhering to, effectively guarantee between solar energy backboard and potting resin, to possess excellent adhesion property.
The utility model further optimally, because PPE resin is except possessing high mechanical properties, good dimensional stability, outside anti-flammability and high-insulation, also possess the heat-resisting of excellence, anti-hydrolytic performance, but during as solar energy back veneer material except existing the poor defect of mutual capacitive between itself and potting resin (being generally EVA resin), also there is the poor technical problem of ultra-violet resistance, the utility model also further proposes the blend of employing PPE resin and ASA resin as the core constituent of body layer in solar energy backboard, this is because the applicant finds through lot of experiments with after analyzing, ASA resin has extremely superior uvioresistant performance, when it and PPE resin carry out after blend, can increase substantially the ultraviolet aging resistance performance of PPE in solar energy back plate main body layer, thereby overcome smoothly and when PPE material is applied in solar energy backboard, had the poor technical barrier of ultra-violet resistance, effectively promote the application of PPE material in solar energy backboard.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the cross section structure schematic diagram of the solar energy backboard under the utility model embodiment;
Fig. 2 is the part-structure enlarged drawing of adhesion layer 110 in Fig. 1;
Fig. 3 is the cross section structure schematic diagram of the solar module under the utility model embodiment.
Embodiment
The utility model embodiment discloses a kind of solar energy backboard, solar energy backboard comprises adhesion layer, body layer and the layer of resistance to ultraviolet, body layer is between adhesion layer and the layer of resistance to ultraviolet, adhesion layer Wei Haihu island clad structure, Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer, some unit, lake being formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated lake, extra large unit, unit, coated island, unit, lake.
The utility model embodiment also discloses a kind of encapsulating structure of solar module, comprise glass, potting resin and solar energy backboard, wherein, solar energy backboard adopts solar energy backboard as above, and the body layer of solar energy backboard is attached on potting resin by adhesion layer.
The utility model embodiment also discloses a kind of solar module, comprise some solar battery sheets that mutual series and parallel connects, and for encapsulating the encapsulating structure of solar battery sheet, wherein, encapsulating structure adopts encapsulating structure as above.
The utility model embodiment proposes solar energy backboard and is set to comprise adhesion layer, body layer and the outer field three-decker of resistance to purple, body layer is between adhesion layer and the layer of resistance to ultraviolet, adhesion layer Wei Haihu island clad structure, Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer, some unit, lake that formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated lake, unit, sea, unit, coated island, unit, lake, because the extra large unit being formed mutually by attachment material in adhesion layer and potting resin have very good tack, the unit, island being formed mutually by the material of main part of body layer in adhesion layer has very good tack with body layer again, the unit, lake simultaneously being formed mutually by bulking agent material in adhesion layer makes again to carry out very well between the extra large unit being formed mutually by attachment material and the unit, island being formed mutually by the material of main part of body layer compatible, final solar energy backboard and potting resin are realized very good adhering to, effectively guarantee between solar energy backboard and potting resin, to possess excellent adhesion property.
In order to make those skilled in the art person understand better the technical scheme in the utility model, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the utility model protection.
Shown in Figure 1, a kind of solar energy backboard of solar module, solar energy backboard 100 comprises adhesion layer 110, body layer 120 and the layer of resistance to ultraviolet 130, body layer 120 is between adhesion layer 110 and the layer of resistance to ultraviolet 130, and adhesion layer 110 is attached to the potting resin 200 of solar module 10 for body layer 120; Particularly, potting resin 200 is EVA resin.Specifically preferably, the thickness of body layer 120 is 0.1-0.3mm, and the thickness of adhesion layer 110 is 0.01-0.1mm, and the thickness of the layer of resistance to ultraviolet 130 is 0.01-0.075mm.
In order to ensure solar energy backboard in the utility model embodiment not only possess high mechanical properties, good dimensional stability, anti-flammability, high-insulation and with the prerequisite of the high tack of potting resin under, also possess excellence, permanent comprising as the weather resistance of heat-resisting, hydrolysis and resistance to ultraviolet etc. simultaneously, further particularly, in the present embodiment, body layer 120 comprises: the PPE resin of 40-95wt%; The ASA resin of 5-40wt%.
Because being body layer, technological core of the present utility model adopts the blend of PPE resin and ASA resin, and a kind of adhesion layer with superior adhesion effect proposed, and the technological know-how level of those skilled in the art based on self, not needing to pay creative work just can know, in order further to improve the required various performances of solar energy backboard, do not affecting under the prerequisite of the utility model technique effect, can be on the basis of the disclosed technology contents of the utility model select other to add material according to self actual demand, therefore specifically do not launch one by one herein to repeat, and suitably to quote publication number be that the Chinese utility model patent of CN102414838A exemplifies explanation.
In order to improve resistance to impact and the processing characteristics of solar energy backboard 100, so that comprising of adopting when following process extruded, the thermoplastic manufacturing procedures such as injection moulding, preferably, in the present embodiment, body layer 120 further comprises the interpolation resin of 0-20wt%, add resin and be selected from PS resin, PP resin, PA resin, HIPS resin, the mixing of any one or a few in PE resin and EVA resin, these add resin can provide enough toughness for solar energy backboard 100 raw material, so that carry out following process as above, additive can be also the resin that [0105] linkage section between 10 pages of publication number Chinese utility model patent Instructions Page 9-that is CN102414838A is recorded, therefore no longer specifically repeat.
Particularly, in the present embodiment, the technology contents of recording in Chinese utility model patent Instructions Page 9 that the concrete material of PPE resin can be CN102414838A referring to publication number [0099] Duan Zhi [0101] section, can certainly adopt other any one known PPE resin.Wherein, preferably, the PPE resin in the utility model execution mode is grafted with the copolymer of styrene compound, can further effectively guarantee the good blend of PPE resin and ASA resin in the utility model embodiment; Further particularly, styrene compound can be styrene, AMS, vinyltoluene, chlorostyrene etc., natch, in other embodiments, the copolymer of styrene compound can be also the copolymer that adopts other concrete styrene compound copolymerization to form.
Further specifically preferably, in the present embodiment, can also add other functional additive at body layer 120: for example, in order further to improve the anti-flammability of solar energy backboard 100, can in body layer 120, add the fire retardant that is applicable to mass parts, the technology contents of recording in Chinese utility model patent Instructions Page 10 that the concrete material of fire retardant and mass parts can be CN102414838A referring to publication number equally [0106] Duan Zhi [0109] section, can certainly adopt other any one known fire retardant; For example, in order further to improve the antioxidant effect of solar energy backboard 100 in the course of processing and long-term use, can in body layer 120, add the antioxidant that is applicable to mass parts, the technology contents of recording in the 40th page of [0444] Duan Zhi [0448] section of Chinese utility model patent specification that the concrete material of antioxidant and mass parts can be CN102414838A referring to publication number equally; For example, in order further to improve the thermal stability of solar energy backboard 100 in the course of processing and long-term use, can in body layer 120, add the heat stabilizer that is applicable to mass parts, the related content of recording in the Chinese utility model patent specification that its concrete material and mass parts can be CN102414838A referring to publication number equally; For example, the thermoplastic manufacturing procedures such as comprising of adopting during for the ease of solar energy backboard 100 following process extruded, injection moulding, can in body layer 120, add the plasticizer that is applicable to mass parts, plasticizer can be oil, low molecular weight polyethylene, epoxidised soybean oil, polyethylene glycol, fatty acid ester etc.For example, in order further to improve the resistance to ultraviolet effect of solar energy backboard 100, can in body layer 120, add the ultraviolet absorber that is applicable to mass parts or/and UV stabilizer, the technology contents of recording in 29 pages [0323] section of the 25th page of [0283] Duan Zhi of Chinese utility model patent specification that its concrete material and mass parts can be CN102414838A referring to publication number equally, can certainly in body layer 120, add the Chinese white or the black pigment that are applicable to mass parts, more preferably, Chinese white adopts titanium dioxide, black pigment adopts carbon black, can certainly be referring to the technology contents of recording in the 14th page of [0146] Duan Zhi [0147] section of CN102414838A patent specification.
Can also be as described in the 10th page [0110] section of CN102414838A patent specification, as long as under the prerequisite of impact core technology effect of the present utility model, can also add according to actual needs the additive of other composition: for example, for further improving the inorganic filling material such as carbon filler, glass filler, talcum, mica of thermal endurance and mechanical strength.
In order to there is the not good defect of mutual capacitive in the PPE material and the EVA resin 200 that overcome in body layer 120, preferably, the utility model embodiment also provides a kind of better superior adhesion layer 110 structures of adhesion effect that make between body layer 120 and EVA resin 200, particularly, please further shown in Figure 2, adhesion layer 110Wei Haihu island clad structure, Hai Hu island clad structure comprises some unit, island 111 that formed mutually by the material of main part of body layer 120, some unit, lake 112 that formed mutually by bulking agent material and the extra large unit 113 being formed mutually by attachment material, wherein, 113 unit, coated lake 112, unit, sea, 112 unit, coated island 111, unit, lake, further particularly, adhesion layer 110 comprises the polyolefin resin of 20-70wt%, the PPE resin of 20-50wt%, the bulking agent of 10-40wt%, wherein, polyolefin resin is attachment material, PPE resin is the material of main part of body layer 120, because the extra large unit 113 being formed mutually by polyolefin resin in adhesion layer 110 has very good tack with EVA resin 200, the unit, island 111 being formed by PPE resin-phase in adhesion layer 110 has very good tack with body layer 120 again, the unit, lake 112 simultaneously being formed mutually by bulking agent material in adhesion layer 110 makes again to carry out very well between the extra large unit 113 being formed mutually by polyolefin resin and the unit, island 111 being formed by PPE resin-phase compatible, final solar energy backboard 100 is realized very good adhering to EVA resin 200.Particularly, the concrete composition of polyolefin resin can be referring to the technology contents of recording in the 11st page [0117] section of CN102414838A patent specification.
Related bulking agent can claim again compatibilizing agent in the present embodiment, refers to by means of intermolecular bonding force, impels the not good polyolefin resin of compatibility and PPE resin to be combined in well one, and then obtains the auxiliary agent of stable blend.Particularly, in the present embodiment, bulking agent can be block or the graft copolymer identical with the chemical composition of polyolefin resin and PPE resin, can be also different from the chemical composition of polyolefin resin and PPE resin but can distinguish compatible with it block or graft copolymer.
Further particularly, bulking agent can adopt cyclic acid anhydride type, carboxylic acid type, epoxy type, oxazoline type, imide-type and isocyanate-based polymer bulking agents, can also adopt low molecule-type bulking agent, can certainly adopt existing any one to be beneficial to polyolefin resin and PPE resin and carry out the bulking agent holding mutually, these believe that those skilled in the art carrys out specifically to select the composition of bulking agent according to the actual requirements.
More preferably, adhesion layer 110 further comprises the uvioresistant additive of 5-30wt% and/or the anti-deformation additive of 5-30wt%, uvioresistant additive is selected from any one or a few the mixing in ASA resin, Chinese white, black pigment and microballon, and anti-deformation additive is the rubber resin with nucleocapsid structure.More preferably, in the present embodiment, Chinese white adopts titanium dioxide, and black pigment adopts carbon black, can certainly be referring to the technology contents of recording in the 14th page of [0146] Duan Zhi [0147] section of CN102414838A patent specification.Further particularly, the rubber resin that has a nucleocapsid structure can be styrene, acrylic acid, organosilicon, butadiene be monomer monobasic or multiple copolymer.
Specifically preferably, the layer of resistance to ultraviolet 130 comprises the resin of resistance to ultraviolet, the uvioresistant additive of 5-40wt% and the PPE resin of 5-40wt% of 40-90wt%, the resin of resistance to ultraviolet is selected from any one in fluorine resin, PA resin and PET resin, more preferably, the resin of resistance to ultraviolet is PA resin or PET resin, is beneficial to the subsequent recovery utilization of solar energy backboard 100 materials.Uvioresistant additive is selected from any one or a few the mixing in ASA resin, Chinese white, black pigment and microballon.More preferably, in the present embodiment, Chinese white adopts titanium dioxide, and black pigment adopts carbon black, can certainly be referring to the technology contents of recording in the 14th page of [0146] Duan Zhi [0147] section of CN102414838A patent specification.
In order further to improve the ultra-violet resistance of the layer of resistance to ultraviolet 130 and adhesion layer 110, preferably, in the present embodiment, in the layer of resistance to ultraviolet 130 and adhesion layer 110, contain some microballons (figure does not specifically illustrate), the particle size range of microballon is 0.5-10 μ m, microballon can play very good reflecting effect to ultraviolet ray, thereby can further improve the ultra-violet resistance of the layer of resistance to ultraviolet 130 and adhesion layer 110 in the present embodiment.
Preferably, solar energy backboard 100 adopts coextruding method or rolling process or cladding process to prepare moulding.Particularly, coextruding method, rolling process and cladding process all can adopt existing any one known method to prepare moulding, natch, and also can be referring to the correlation technique content of recording in CN102414838A patent specification.More preferably, in the present embodiment, solar energy backboard 100 adopts coextruding method to prepare moulding, obtain coextrusion mold structure, avoid the bonding agent adopting in rolling process, therefore the recovery that is beneficial to solar energy backboard 100 materials is used, and the solar energy backboard 100 of current existing routine is owing to being mostly fluorine material, and adopt bonding agent to carry out calendering formation, therefore solar module reached after useful life (being generally 25 years), multiplex landfill disposal, recycles not only bad for raw-material, also has a strong impact on environment.
Further, because PPE resin has high rigidity, and toughness is poor, thereby be conventionally difficult to carry out coextruding heat and prepare processing and forming, and the ASA resin that the utility model embodiment provides is owing to possessing high tenacity (being elongation at break), the fluidity of molten that adds man-hour at thermoplastic is very excellent, therefore the body layer being formed by PPE resin and ASA mixed with resin that the utility model embodiment provides can be particularly suitable for carrying out coextruding heat and prepare processing and forming, this is that publication number is the good characteristic that the Chinese utility model patent of CN102414838A does not possess equally, the technical scheme of the utility model embodiment is simple, and effectively promote the good commercial application of the utility model embodiment, and follow-up recycling.
In order to save word length herein, the chemical substance that this patent adopts it has mainly adopted simplification title to indicate, and concrete corresponding namelist is asked for an interview following table 1:
The corresponding namelist of table 1
| Simplify title | Full name (English and/or Chinese) |
| EVA | Ethylene/vinyl acetate, ethylene-vinyl acetate copolymer |
| PET | Polyethylene terephthalate, poly terephthalic acid class plastics |
| PVF | Polyvinyl fluoride, polyvinyl fluoride |
| PE | Polyethylene, polyethylene |
| PPE | Polyphenylene oxide |
| ASA | Acrylonitrile-styrene-acrylate, acrylonitrile/styrene |
| PS | Polystyrene, polystyrene |
| PP | Polypropylene, polypropylene |
| PA | Polyamide, polyamide (claiming again nylon nylon) |
| HIPS | High Impact Polystyrence, high impact polystyrene |
For the weatherability of further checking the utility model solar energy backboard 100 with and with the technique effect (specifically referring to following table 2) of the tack of EVA resin 200, the utility model exemplifies following specific embodiment:
Embodiment 1:
Shown in Figure 1, a kind of solar energy backboard 100 of solar module, solar energy backboard 100 comprises adhesion layer 110, body layer 120 and the layer of resistance to ultraviolet 130, body layer 120 is between adhesion layer 110 and the layer of resistance to ultraviolet 130, adhesion layer 110 is attached to the EVA resin 200 of solar module for body layer 120, the thickness of body layer 120 is 0.2mm, and the thickness of adhesion layer 110 is 0.06mm, and the thickness of the layer of resistance to ultraviolet 130 is 0.04mm.
Wherein, adhesion layer 110Wei Haihu island clad structure, Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer 120, some unit, lake being formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated lake, unit, sea, unit, coated island, unit, lake.
The layer of resistance to ultraviolet 130 comprises: carbon black, the microballon of 12wt% and the PPE resin of 5wt% of the PET resin of 60wt%, the ASA resin of 15wt%, 8wt%, wherein, the particle size range of microballon is 0.5-10 μ m.
In the present embodiment, solar energy backboard 100 adopts the coextruding method that belongs to known technology to prepare moulding, therefore obtains three layers of compound coextrusion mold structure, is conducive to follow-up MAT'L recycling.
Embodiment 2:
All the other are identical with above-described embodiment 1, distinguish and be only, the body layer 120 in the present embodiment 2 comprises: antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of the interpolation resin being formed by PS resin, PP resin and EVA mixed with resin of the PPE resin of 70wt%, the ASA resin of 15wt%, 5wt%, the titanium dioxide of 2.5wt%, 2.5wt%.
Embodiment 3:
All the other are identical with above-described embodiment 1, distinguish and be only, the body layer 120 in the present embodiment 3 comprises: antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of the interpolation resin being formed by PS resin, PP resin and PE mixed with resin of the PPE resin of 80wt%, the ASA resin of 5wt%, 5wt%, the titanium dioxide of 2.5wt%, 2.5wt%.
Embodiment 4:
All the other are identical with above-described embodiment 1, distinguish and are only, the body layer 120 in the present embodiment 4 comprises: the interpolation resin being formed by HIPS resin, PP resin and PA mixed with resin of the PPE resin of 90wt%, the ASA resin of 7wt%, 3wt%.
Embodiment 5:
All the other are identical with above-described embodiment 1, distinguish and are only, the body layer 120 in the present embodiment 5 comprises: the PPE resin of 95wt%, the ASA resin of 5wt%.
Embodiment 6:
All the other are identical with above-described embodiment 1, distinguish and be only, the body layer 120 in the present embodiment 6 comprises: antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of the interpolation resin being formed by PS resin, PP resin, PA resin and PE mixed with resin of the PPE resin of 60wt%, the ASA resin of 25wt%, 5wt%, the titanium dioxide of 2.5wt%, 2.5wt%.
Embodiment 7:
All the other are identical with above-described embodiment 1, distinguish and be only, the body layer 120 in the present embodiment 7 comprises: antioxidant, the heat stabilizer of 5wt% and the plasticizer of 5wt% of the interpolation resin being formed by HIPS resin, PP resin and PA mixed with resin of the PPE resin of 50wt%, the ASA resin of 25wt%, 5wt%, the titanium dioxide of 5wt%, 5wt%.
Embodiment 8:
All the other are identical with above-described embodiment 1, distinguish and be only, the body layer 120 in the present embodiment 8 comprises: antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of the interpolation resin being formed by PS resin, PP resin, PA resin, PE resin and EVA mixed with resin of the PPE resin of 40wt%, the ASA resin of 40wt%, 10wt%, the titanium dioxide of 2.5wt%, 2.5wt%.
Embodiment 9:
All the other are identical with above-described embodiment 1, and difference is only: the body layer 120 in the present embodiment 9 comprises: the titanium dioxide of the PPE resin of 75wt%, the interpolation resin being formed by PS resin, PP resin and PA mixed with resin of 15wt%, 2.5wt%, antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of 2.5wt%.
Embodiment 10:
All the other are identical with above-described embodiment 1, and difference is only: the body layer 120 in the present embodiment 10 comprises: the titanium dioxide of the PPE resin of 75wt%, the interpolation resin being formed by PS resin, PP resin and PA mixed with resin of 10wt%, 5wt%, antioxidant, the heat stabilizer of 3wt% and the plasticizer of 2wt% of 5wt%.
Comparative example 1:
Adopt existing business-like TPT type solar energy backboard.
Comparative example 2:
Adopt existing business-like TPE type solar energy backboard.
Comparative example 3:
All the other are identical with the utility model embodiment 1, difference is only: the adhesion layer in this comparative example 3 comprises: titanium dioxide, the microballon of 5wt% and the rubber resin with nucleocapsid structure of 4wt% of the polyolefin resin of 75wt%, the ASA resin of 10wt%, 6wt%, wherein, the particle size range of microballon is 0.5-10 μ m.
Comparative example 4:
All the other are identical with the utility model embodiment 1, and difference is only: the solar energy backboard in this comparative example 4 comprises body layer and the layer of resistance to ultraviolet; The thickness of body layer is 0.2mm, and the outer field thickness of resistance to purple is 0.04mm.
The comparison of table 2 implementation result
Concrete method of testing explanation:
(1), thermal endurance, hydrolytic resistance
It is, under the environment of 85 ℃, to place 3000 hours in the environment that relative humidity is 85% that the solar energy backboard sample that coextrusion mold is obtained is positioned over temperature, observes the variation of solar energy backboard.
(2), ultra-violet resistance
The solar energy backboard sample that coextrusion mold is obtained is positioned in the ultraviolet lighting environment that wave-length coverage is 200-400nm and places 300 hours, observes the variation of solar energy backboard.
(3), with the tack of EVA resin
Adhesion layer in the solar energy backboard sample that coextrusion mold is obtained carries out 180 ° to be peeled off, and records peeling force, wherein:
√: represent that peel strength is more than 40N/15mm;
Δ: represent that peel strength is between 10-40N/15mm;
×: represent that peel strength is below 10N/15mm.
Shown in Figure 3, a kind of encapsulating structure of solar module, comprise glass 300, potting resin 200 and solar energy backboard 100, wherein, solar energy backboard 100 adopts solar energy backboard 100 as above, and the body layer 120 of solar energy backboard 100 is attached on potting resin 200 by adhesion layer 110.
Shown in Figure 3, a kind of solar module 10, comprise some solar battery sheets 400 that mutual series and parallel connects, and for encapsulating the encapsulating structure of solar battery sheet 400, wherein, encapsulating structure adopts encapsulating structure as above.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (6)
1. a solar energy backboard, described solar energy backboard comprises adhesion layer, body layer and the layer of resistance to ultraviolet, described body layer is between described adhesion layer and the described layer of resistance to ultraviolet, it is characterized in that, described adhesion layer Wei Haihu island clad structure, described Hai Hu island clad structure comprises some unit, island that formed mutually by the material of main part of body layer, some unit, lake being formed mutually by bulking agent material and the extra large unit being formed mutually by attachment material, wherein, unit, coated described lake, described extra large unit, unit, coated described island, unit, described lake.
2. solar energy backboard as claimed in claim 1, is characterized in that, the described layer of resistance to ultraviolet/and described adhesion layer in contain some microballons, the particle size range of described microballon is 0.5-10 μ m.
3. solar energy backboard as claimed in claim 1, is characterized in that, the thickness of described adhesion layer is 0.01-0.1mm, and the thickness of described body layer is 0.1-0.3mm, and the outer field thickness of described resistance to purple is 0.01-0.075mm.
4. solar energy backboard as claimed in claim 1, is characterized in that, described solar energy backboard is coextrusion mold structure.
5. the encapsulating structure of a solar module, comprise glass, potting resin and solar energy backboard, it is characterized in that, described solar energy backboard adopts the solar energy backboard as described in any one in claim 1-4, and the body layer of described solar energy backboard is attached on described potting resin by described adhesion layer.
6. a solar module, comprises some solar battery sheets that mutual series and parallel connects, and for encapsulating the encapsulating structure of described solar battery sheet, it is characterized in that, described encapsulating structure adopts encapsulating structure as claimed in claim 5.
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| CN201320554526.5U CN203617306U (en) | 2013-09-06 | 2013-09-06 | Solar energy backboard, packaging structure and solar module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441170A (en) * | 2013-09-06 | 2013-12-11 | 苏州柯莱美高分子材料科技有限公司 | Solar energy backboard, packaging structure and solar energy cell assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441170A (en) * | 2013-09-06 | 2013-12-11 | 苏州柯莱美高分子材料科技有限公司 | Solar energy backboard, packaging structure and solar energy cell assembly |
| CN103441170B (en) * | 2013-09-06 | 2016-04-13 | 苏州柯莱美高分子材料科技有限公司 | Solar energy backboard, encapsulating structure and solar module |
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