CN107641481A - A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane - Google Patents
A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane Download PDFInfo
- Publication number
- CN107641481A CN107641481A CN201710784983.6A CN201710784983A CN107641481A CN 107641481 A CN107641481 A CN 107641481A CN 201710784983 A CN201710784983 A CN 201710784983A CN 107641481 A CN107641481 A CN 107641481A
- Authority
- CN
- China
- Prior art keywords
- eutectic
- glued membrane
- photovoltaics
- eva
- white
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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 present invention relates to photovoltaic glued membrane technical field, especially a kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane, comprises the following steps：Eutectic is referred into ethylene-vinyl acetate copolymer, after antioxidant and crosslinking agent and silane coupler are sufficiently mixed, carry out melting coextrusion, 80~90 DEG C of the temperature in each region of extruder, through three-roller calendaring after extrusion, shaped after chill roll, then embossing process, thickness measuring, finally trimming, winding again, packaging and storage.It is using the beneficial effect of technical scheme：1st, EVA adhesive film hot melt viscosity can be greatly improved by referring to EVA micelles from eutectic, reduced it and heated mobility, reduce its fold and white risk of overflowing in vacuum is laminated.2nd, prepare eutectic from rolling process and refer to EVA tunica albugineas, overcome the shortcomings that the tape casting load is big, and difficulty of processing is big, be not only easily worked, and efficiency greatly improves.
Description
Technical field
The present invention relates to photovoltaic glued membrane technical field, especially a kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane.
Background technology
Solar photovoltaic assembly basic structure is formed by 5 layers from top to bottom：Upper strata high-transparency Guang volt Bo Li ﹑ upper stratas EVA glue
Mo ﹑ electricity Chi Pian ﹑ lower floor's EVA Jiao Mo ﹑ photovoltaic backs or lower floor's photovoltaic glass.Due to this structure, sunshine is incident from glass, warp
Upper strata EVA adhesive film is crossed, cell piece is reached and realizes opto-electronic conversion, interval and cell piece and component side of the sunshine between cell piece
There is greater loss in the blank space of edge, if bottom is photovoltaic glass, then sunshine can be projected directly, if photovoltaic back
Plate, because backboard reflectivity is not high, about 70-80%, the sunshine for thus having 20-30% is lost.Therefore, high reflecting rate
White EVA adhesive film preparation and application just turn into solar energy industry circle research focus.But go deep into research, pleat
Wrinkle and the problem of white of overflowing, gradually display.Because photovoltaic module needs high temperature lamination ability curing molding, and in lamination process
In order to solve the generation of bubble, it is necessary to vacuumize, under the double action of air pressure and internal stress, there is fold in white EVA adhesive film,
And easily overflow in vain on cell piece and busbar, the attractive in appearance of photovoltaic module is so not only have impact on, and reduce power.Institute
To solve the problems, such as fold and overflow white just to turn into the task of top priority.
The solution of internal stress mainly reduces percent thermal shrinkage, and the influence of air pressure mainly reduces the thermal fluidity of glued membrane, mesh
The preceding method for solving this problem mainly has two kinds：1, white EVA adhesive film electron radiation pretreatment；2, eutectic refers to white EVA glue
Film.But due to the limitation of technical merit, electron radiation generator work at present is simultaneously unstable, easily causes the uneven of radiation
Property, i.e., local excess or low amounts can excessively bring the hidden risk split with bubble of cell piece, and low amounts occurs fold and overflows white again
Risk.Simultaneously as hot melt is poor, eutectic refers to EVA adhesive film and carrys out bigger load to equipment belt in hot-melt extruded, is made to processing
Into bigger difficulty, traditional the tape casting is difficult to prepare, but rolling process but possesses performance load reduction, the high spy of throughput rate
Point.
The content of the invention
The purpose of the present invention is：Overcome deficiency of the prior art, there is provided mobility is low and corrugationless and overflows for one kind hot melt
The preparation method of the EVA photovoltaic glued membranes of white risk.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane, comprises the following steps：Eutectic is referred into ethyl vinyl acetate second
After alkene copolymer, antioxidant and crosslinking agent and silane coupler are sufficiently mixed, melting coextrusion, the temperature in each region of extruder are carried out
80~90 DEG C of degree, through three-roller calendaring after extrusion, shaped after chill roll, then embossing process, thickness measuring, finally again trimming, receive
Volume, packaging and storage.
Preferably, the antioxidant includes primary antioxidant and auxiliary anti-oxidant, wherein, the main antioxygen base is β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid octadecanol ester；The auxiliary anti-oxidant is three (4- nonyl phenols) phosphite esters and/or phosphorous
Sour three (2,4- di-tert-butyl-phenyls) esters.
Further, the auxiliary anti-oxidant is three (4- nonyl phenols) phosphite esters and (2, the 4- di-tert-butyls of phosphorous acid three
Base) ester compound.
Further, crosslinking agent includes crosslinking and curing agent and assistant crosslinking agent, wherein, the crosslinking and curing agent includes organic mistake
Oxide and/or azo-compound, the organic peroxide are included for dicumyl peroxide, di-tert-butyl peroxide, mistake
Hydrogen oxide diisopropylbenzene (DIPB), the di-t-butyl hexane peroxide of 2,5- dimethyl -2,5,4,4- bis- (t-amyl peroxy) valeric acid normal-butyl
Ester, the one or more in the peroxidating 2- ethylhexyl carbonates tert-butyl ester, 3,3- bis- (t-butyl peroxy) ethyl butyrate；It is described to help
Crosslinking agent includes Triallyl isocyanurate, TAC, trimethylol-propane trimethacrylate, diformazan
One or more mixing in base acrylic acid binaryglycol ester.
Further, the silane coupler is VTES, vinyltrimethoxy silane, vinyl
In three tert-butyl peroxide silane, vinyltriacetoxy silane, vinyl three ('beta '-methoxy ethyoxyl) silane at least
It is a kind of.
Further, the gross thickness of the white EVA adhesive film is 350~750 μm.
Further, the eutectic refers to ethylene-vinyl acetate copolymer resin, antioxidant, crosslinking agent, silane coupler and
The mass ratio of white filler is 80%~95%：0.05%~5%：0.25%~2%：0.1%~4%：5~20%.
It is using the beneficial effect of technical scheme：
1st, EVA adhesive film hot melt viscosity can be greatly improved by referring to EVA micelles from eutectic, reduced it and heated mobility, reduce
Its fold and white risk of overflowing in vacuum is laminated.
2nd, prepare eutectic from rolling process and refer to EVA tunica albugineas, overcome the shortcomings that the tape casting load is big, and difficulty of processing is big, no
Only it is easily worked, and efficiency greatly improves.
Products application produced by the present invention is in extensive range, and reflecting rate reaches more than 90%, it is possible to increase the light of photovoltaic module
Photoelectric transformation efficiency, and can eliminate simultaneously bubble and it is hidden split, fold and the white phenomenon of overflowing.
Embodiment
With reference to specific embodiment, the present invention will be further described.
The material used is：
Major ingredient：Ethylene-vinyl acetate copolymer (EVA), VA contents be 33%, melt flow rate (MFR) be 1.0g/10min~
10g/10min。
White filler：For the particle of titanium dioxide, white carbon or barium sulfate, surface handles by Coated with Organic Matter, is processed into
Used after the EVA white master batch of 30-70% concentration.
Antioxidant:Main antioxygen base is β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid octadecanol ester；Auxiliary anti-oxidant is
The compound of three (4- nonyl phenols) phosphite esters and phosphorous acid three (2,4- di-tert-butyl-phenyls) ester.
Crosslinking agent:Crosslinking and curing agent is the peroxidating 2- ethylhexyl carbonates tert-butyl ester and 3,3- bis- (t-butyl peroxy) butyric acid
The compound of ethyl ester；Assistant crosslinking agent is Triallyl isocyanurate, TAC and trimethylolpropane tris first
The compound of base acrylate.
Silane coupler：Vinyl three ('beta '-methoxy ethyoxyl) silane.
The technological process of production of this patent is：Batch mixing-double-deck extrusion-curtain coating-thickness measuring-embossing-sizing-trimming-winding-bag
Dress.
Formula such as table 1
Transparent film formulation is according to EVA：Antioxidant：Crosslinking agent：Silane coupler=100:0.5:2:0:0.5, tunica albuginea formula
According to EVA：Titanium dioxide：Antioxidant：Crosslinking agent：Silane coupler=100-X:X:0.5:2:0:0.5, X=5-20, by above-mentioned material
Material is sufficiently mixed uniformly in the ratio of table 1, is added separately to two extruder hoppers, is carried out melting coextrusion, extruder, die head
80~90 DEG C of the temperature humidity in each region, is extruded through co-extrusion die head, is cooled down by way of casting roller, then laggard through thickness measuring, embossing procedure
Row sizing, finally trimming, winding again, packaging and storage.Then transmissivity, ageing-resistant test and cell piece power test are carried out.
Table 1-different embodiments formula and performance
The gross thickness of white EVA adhesive film in the present invention is 350~750 μm.
Although above-described embodiment is described in detail to technical scheme, the technical side of the present invention
Case is not limited to above example, in the case where not departing from the thought and objective of the present invention, to technical scheme institute
Any change done falls within claims of the present invention limited range.
Claims (7)
1. a kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane, it is characterised in that comprises the following steps：Eutectic is referred into second
Alkene-acetate ethylene copolymer, antioxidant and crosslinking agent, silane coupler and white filler；After being sufficiently mixed, melting co-extrusion is carried out
Go out, 80~90 DEG C of the temperature in each region of extruder, through three-roller calendaring after extrusion, carried out after chill roll, then embossing process, thickness measuring
Sizing, finally trimming, winding again, packaging and storage.
2. refer to the preparation method of white EVA photovoltaics glued membrane according to a kind of eutectic described in claim 1, it is characterised in that：It is described
Antioxidant includes primary antioxidant and auxiliary anti-oxidant, wherein, the main antioxygen base is β-(3,5- di-tert-butyl-hydroxy phenyl) third
Sour octadecanol ester；The auxiliary anti-oxidant is three (4- nonyl phenols) phosphite esters and/or (the 2,4- di-tert-butyls of phosphorous acid three
Base) ester.
3. refer to white EVA photovoltaics glued membrane according to the eutectic described in claim 1, it is characterised in that：The auxiliary anti-oxidant is three (4-
Nonyl phenol) phosphite ester and phosphorous acid three (2,4- di-tert-butyl-phenyls) ester compound.
4. refer to white EVA photovoltaics glued membrane according to the eutectic described in claim 1, it is characterised in that：Crosslinking agent includes crosslinking curing
Agent and assistant crosslinking agent, wherein, the crosslinking and curing agent includes organic peroxide and/or azo-compound, the organic peroxy
Compound is included for dicumyl peroxide, di-tert-butyl peroxide, di-isopropylbenzene hydroperoxide, -2,5 two tertiary fourth of 2,5- dimethyl
Base butylperoxyhexane, 4,4- bis- (t-amyl peroxy) valeric acid n-butyl, the peroxidating 2- ethylhexyl carbonates tert-butyl ester, 3,3- bis-
One or more in (t-butyl peroxy) ethyl butyrate；The assistant crosslinking agent includes Triallyl isocyanurate, melamine
One or more in sour triallyl, trimethylol-propane trimethacrylate, diethyleneglycol dimethacrylate are mixed
Close.
5. refer to white EVA photovoltaics glued membrane according to the eutectic described in claim 1, it is characterised in that：The silane coupler is second
Alkenyl triethoxysilane, vinyltrimethoxy silane, the tert-butyl peroxide silane of vinyl three, vinyl triacetoxy
At least one of silane, vinyl three ('beta '-methoxy ethyoxyl) silane.
6. refer to white EVA photovoltaics glued membrane according to the eutectic described in claim 1, it is characterised in that：The white EVA adhesive film it is total
Thickness is 350~750 μm.
7. refer to white EVA photovoltaics glued membrane according to the eutectic described in claim 1, it is characterised in that：The eutectic refers to ethyl vinyl acetate
The mass ratio of ethylene copolymer resin, antioxidant, crosslinking agent, silane coupler and white filler is 80%~95%：0.05%
~5%：0.25%~2%：0.1%~4%：5~20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784983.6A CN107641481A (en) | 2017-09-04 | 2017-09-04 | A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784983.6A CN107641481A (en) | 2017-09-04 | 2017-09-04 | A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107641481A true CN107641481A (en) | 2018-01-30 |
Family
ID=61111069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710784983.6A Pending CN107641481A (en) | 2017-09-04 | 2017-09-04 | A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107641481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113881131A (en) * | 2021-11-10 | 2022-01-04 | 常州斯威克光伏新材料有限公司 | Photovoltaic module packaging adhesive film filled with glass beads and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937418A (en) * | 2014-05-18 | 2014-07-23 | 常州斯威克光伏新材料有限公司 | High-reflectivity white EVA (ethylene-vinyl acetate) adhesive film and preparation technique thereof |
| CN106590471A (en) * | 2016-11-01 | 2017-04-26 | 常州斯威克光伏新材料有限公司 | Infrared shielded EVA photovoltaic film |
| CN106634649A (en) * | 2016-11-01 | 2017-05-10 | 常州斯威克光伏新材料有限公司 | Preparation method of infrared shielding type EVA (Ethylene Vinyl Acetate) photovoltaic adhesive film |
| CN106753056A (en) * | 2016-12-29 | 2017-05-31 | 苏州度辰新材料有限公司 | White polyolefin packaging adhesive film for solar cell module and preparation method thereof |
-
2017
- 2017-09-04 CN CN201710784983.6A patent/CN107641481A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937418A (en) * | 2014-05-18 | 2014-07-23 | 常州斯威克光伏新材料有限公司 | High-reflectivity white EVA (ethylene-vinyl acetate) adhesive film and preparation technique thereof |
| CN106590471A (en) * | 2016-11-01 | 2017-04-26 | 常州斯威克光伏新材料有限公司 | Infrared shielded EVA photovoltaic film |
| CN106634649A (en) * | 2016-11-01 | 2017-05-10 | 常州斯威克光伏新材料有限公司 | Preparation method of infrared shielding type EVA (Ethylene Vinyl Acetate) photovoltaic adhesive film |
| CN106753056A (en) * | 2016-12-29 | 2017-05-31 | 苏州度辰新材料有限公司 | White polyolefin packaging adhesive film for solar cell module and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113881131A (en) * | 2021-11-10 | 2022-01-04 | 常州斯威克光伏新材料有限公司 | Photovoltaic module packaging adhesive film filled with glass beads and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107556930A (en) | Eutectic refers to the compound white photovoltaic glued membranes of tri- layers of EVA | |
| CN107556931A (en) | Eutectic refers to the compound white photovoltaic glued membranes of EVA | |
| US20200354611A1 (en) | Encapsulation adhesive film for solar cell and preparation method and use therefor | |
| CN110003805A (en) | One kind three layers of highly reliable high-gain EVA and PO composite photo voltaic glue film and preparation method thereof | |
| WO2022021770A1 (en) | Multifunctional packaging adhesive film and preparation method therefor | |
| US9040165B2 (en) | Solar cell sealing film and solar cell | |
| CN103937418B (en) | A kind of high reflecting rate white EVA adhesive film and preparation technology thereof | |
| JP6306714B2 (en) | Adhesive sealing film for solar cell module | |
| TW201444104A (en) | Thin film solar cell panel and preparation method of same | |
| CN107722437A (en) | Eutectic refers to the preparation method of the compound white photovoltaic glued membranes of tri- layers of EVA | |
| CN107718487A (en) | Eutectic refers to the preparation method of the compound white photovoltaic glued membranes of EVA | |
| EP2511958A1 (en) | Sealing film for solar cell | |
| US20140116499A1 (en) | Process for manufacturing solar cell modules | |
| CN110079221A (en) | A kind of highly reliable high-gain white EVA photovoltaic glue film of two-layer compound and preparation method thereof | |
| CN102217083A (en) | Solar cell sealing film and solar cell using same | |
| CN106244032A (en) | A kind of EVA adhesive film used for solar batteries and preparation method thereof | |
| CN103850372A (en) | Solar battery curtain wall | |
| CN113956822A (en) | High-reflectivity EVA adhesive film without adhesive overflow and preparation method thereof | |
| CN107858123A (en) | A kind of photovoltaic module white EVA adhesive film and its preparation technology | |
| CN111732908A (en) | Integrated photovoltaic module packaging adhesive film | |
| CN111253876A (en) | Packaging adhesive film for photovoltaic module and preparation method thereof | |
| CN107641481A (en) | A kind of eutectic refers to the preparation method of white EVA photovoltaics glued membrane | |
| CN113943537A (en) | Black high-repeated-combination packaging adhesive film and preparation method thereof | |
| CN110003801A (en) | Three layers of compound highly reliable efficient gain EVA photovoltaic glue film of one kind and preparation method thereof | |
| CN106566435B (en) | A kind of up-conversion luminescence type EVA photovoltaic glued membranes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180130 |