CN102432965A - Solar cell back panel and preparation method thereof - Google Patents
Solar cell back panel and preparation method thereof Download PDFInfo
- Publication number
- CN102432965A CN102432965A CN2011104424470A CN201110442447A CN102432965A CN 102432965 A CN102432965 A CN 102432965A CN 2011104424470 A CN2011104424470 A CN 2011104424470A CN 201110442447 A CN201110442447 A CN 201110442447A CN 102432965 A CN102432965 A CN 102432965A
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- solar cell
- modified
- cell backboard
- drying
- back panel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a solar cell back panel and a preparation method thereof. The solar cell back panel comprises the following raw materials in parts by weight: 8-12 parts of polyvinylidene fluoride, 8-12 parts of modified PE (polyethylene), 40-60 parts of modified EVA (ethylene-vinyl acetate) and 0.5-2 parts of titanium white. The preparation method comprises the following steps: raw material mixing, classified drying and microlayer co-extrusion. The raw materials required by the solar cell back panel do not need to be imported; a running compounding technique is utilized to manufacture the solar cell back panel; and thus, the invention has the advantages of simple manufacturing technique, favorable product performance and low manufacturing cost. The cohesive strength for solar cell back panel, and the peel strength, water vapor permeability, breakdown voltage and other technical indexes for silica gel are superior to those of the solar cell back panel produced by the traditional coating compounding technique.
Description
Technical field
The present invention relates to solar cell backboard, specifically, relate to a kind of solar cell backboard and preparation method thereof.
Background technology
At present, in the development that science and technology is maked rapid progress, in short supply along with the energy; New forms of energy are constantly developed in countries in the world; Sun power obtains various countries and pays close attention to widely with sufficient, inexhaustible, the nexhaustible advantage of its reserves, and wherein solar electrical energy generation is as the topmost application form of sun power; Used, and receive popularization energetically by most countries.The used carrier of solar electrical energy generation is called solar module, mainly is made up of through encapsulation sheet glass, solar battery sheet, packaging adhesive film, solar cell backboard.Along with the development of solar module technology and the reduction of cost; Development as its raw-material solar cell backboard technology seems particularly important; Preparation technology's mode of traditional solar cell backboard is divided into compound and applies two kinds of technologies; Required raw-material major portion dependence on import in the technology, manufacturing cost is high.
Summary of the invention
The objective of the invention is to the problems referred to above of existing to existing solar cell backboard, provide that a kind of performance is good, low cost of manufacture, the simple solar cell backboard of ME and preparation method thereof.
Technical scheme of the present invention is: a kind of solar cell backboard, and its raw material composition is by weight ratio:
PVDF 8-12 part,
Modified PE 8-12 part,
Modified EVA 40-60 part,
White titanium pigment 0.5-2 part;
Preferably, PVDF employing density is 1.77g/cm
3Particle;
Preferably, modified PE employing melt flow rate is the modified PE material of 80-100g/10min;
Preferably, modified EVA employing melt flow rate is the modified EVA material of 400-600g/10min;
Preferably, white titanium pigment employing property is that 4.2-5, specific refractory power are the titanium oxide of 2.7-3 to density.
Another object of the present invention is to provide a kind of preparation method of above-mentioned solar cell backboard, its preparation process is:
(1) white titanium pigment and modified EVA are put into mixer regularly fully mixed in 5 minutes;
(2) mixture of mixed white titanium pigment and modified EVA is inserted carry out drying in the drying machine;
(3) modified PE is inserted separately carried out drying in the drying machine;
(4) PVDF, modified PE, modified EVA and three kinds of materials of white titanium pigment mixture are added three respectively and independently extrude the unit, carry out the microbedding coextrusion, can obtain the solar cell backboard product.
Preferably, in the step (2), the drying temperature of drying machine is 40 ℃, and be 120 minutes time of drying.
Preferably, in the step (3), the drying temperature of drying machine is 45 ℃, and be 120 minutes time of drying.
Beneficial effect of the present invention is: the required starting material of solar cell backboard of the present invention need not import, and adopt the curtain coating recombining process to carry out the making of solar cell backboard, and manufacture craft is simple, and not only performance of products is good, and low cost of manufacture.Technical indicators such as the cohesive strength of solar cell backboard of the present invention and EVA, the stripping strength with silica gel, WVTR water vapor trausmission rate, voltage breakdown are superior to the solar cell backboard that tradition coating recombining process is produced.
Embodiment
Below the present invention is described further.
Embodiment one: a kind of solar cell backboard, its raw material composition is by weight ratio:
8 parts of PVDF,
8 parts of modified PE,
40 parts of modified EVAs,
0.5 part of white titanium pigment
Wherein, PVDF employing density is 1.77g/cm
3Particle; It is the modified PE material of 80g/10min that modified PE adopts melt flow rate; It is the modified EVA material of 400g/10min that modified EVA adopts melt flow rate; White titanium pigment adopt property to density be 4.2, specific refractory power is 2.7 titanium oxide.
Its preparation process is:
(1) white titanium pigment and modified EVA are put into mixer regularly fully mixed in 5 minutes.
(2) mixture of mixed white titanium pigment and modified EVA is inserted carry out drying in the drying machine, the drying temperature of drying machine is 40 ℃, and be 120 minutes time of drying.
(3) modified PE is inserted separately carried out drying in the drying machine, the drying temperature of drying machine is 45 ℃, and be 120 minutes time of drying.
(4) PVDF, modified PE, modified EVA and three kinds of materials of white titanium pigment mixture are added three respectively and independently extrude the unit, carry out the microbedding coextrusion, can obtain the solar cell backboard product.
Embodiment two: a kind of solar cell backboard, its raw material composition is by weight ratio:
10 parts of PVDF,
10 parts of modified PE,
50 parts of modified EVAs,
1.2 parts of white titanium pigments
Wherein, PVDF employing density is 1.77g/cm
3Particle; It is the modified PE material of 90g/10min that modified PE adopts melt flow rate; It is the modified EVA material of 500g/10min that modified EVA adopts melt flow rate; White titanium pigment adopt property to density be 4.7, specific refractory power is 2.85 titanium oxide.
Its preparation process is:
(1) white titanium pigment and modified EVA are put into mixer regularly fully mixed in 5 minutes.
(2) mixture of mixed white titanium pigment and modified EVA is inserted carry out drying in the drying machine, the drying temperature of drying machine is 40 ℃, and be 120 minutes time of drying.
(3) modified PE is inserted separately carried out drying in the drying machine, the drying temperature of drying machine is 45 ℃, and be 120 minutes time of drying.
(4) PVDF, modified PE, modified EVA and three kinds of materials of white titanium pigment mixture are added three respectively and independently extrude the unit, carry out the microbedding coextrusion, can obtain the solar cell backboard product.
Embodiment three: a kind of solar cell backboard, its raw material composition is by weight ratio:
12 parts of PVDF,
12 parts of modified PE,
60 parts of modified EVAs,
2 parts of white titanium pigments
Wherein, PVDF employing density is 1.77g/cm
3Particle; It is the modified PE material of 100g/10min that modified PE adopts melt flow rate; It is the modified EVA material of 600g/10min that modified EVA adopts melt flow rate; White titanium pigment adopt property to density be 5, specific refractory power is 3 titanium oxide.
Its preparation process is:
(1) white titanium pigment and modified EVA are put into mixer regularly fully mixed in 5 minutes.
(2) mixture of mixed white titanium pigment and modified EVA is inserted carry out drying in the drying machine, the drying temperature of drying machine is 40 ℃, and be 120 minutes time of drying.
(3) modified PE is inserted separately carried out drying in the drying machine, the drying temperature of drying machine is 45 ℃, and be 120 minutes time of drying.
(4) PVDF, modified PE, modified EVA and three kinds of materials of white titanium pigment mixture are added three respectively and independently extrude the unit, carry out the microbedding coextrusion, can obtain the solar cell backboard product.
Claims (8)
1. solar cell backboard is characterized in that: its raw material is formed and is by weight ratio:
PVDF 8-12 part,
Modified PE 8-12 part,
Modified EVA 40-60 part,
White titanium pigment 0.5-2 part.
2. solar cell backboard according to claim 1 is characterized in that: it is the particle of 1.77g/em3 that PVDF adopts density.
3. solar cell backboard according to claim 1 is characterized in that: it is the modified PE material of 80-100g/10min that modified PE adopts melt flow rate.
4. solar cell backboard according to claim 1 is characterized in that: it is the modified EVA material of 400-600g/10min that modified EVA adopts melt flow rate.
5. solar cell backboard according to claim 1 is characterized in that: white titanium pigment employing property is that 4.2-5, specific refractory power are the titanium oxide of 2.7-3 to density.
6. the preparation method of a solar cell backboard as claimed in claim 1, it is characterized in that: its preparation process is:
(1) white titanium pigment and modified EVA are put into mixer regularly fully mixed in 5 minutes;
(2) mixture of mixed white titanium pigment and modified EVA is inserted carry out drying in the drying machine;
(3) modified PE is inserted separately carried out drying in the drying machine;
(4) PVDF, modified PE, modified EVA and three kinds of materials of white titanium pigment mixture are added three respectively and independently extrude the unit, carry out the microbedding coextrusion, can obtain the solar cell backboard product.
7. the preparation method of solar cell backboard according to claim 6, it is characterized in that: in the step (2), the drying temperature of drying machine is 40 ℃, and be 120 minutes time of drying.
8. the preparation method of solar cell backboard according to claim 6, it is characterized in that: in the step (3), the drying temperature of drying machine is 45 ℃, and be 120 minutes time of drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104424470A CN102432965A (en) | 2011-12-27 | 2011-12-27 | Solar cell back panel and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104424470A CN102432965A (en) | 2011-12-27 | 2011-12-27 | Solar cell back panel and preparation method thereof |
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| CN102432965A true CN102432965A (en) | 2012-05-02 |
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| CN2011104424470A Pending CN102432965A (en) | 2011-12-27 | 2011-12-27 | Solar cell back panel and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778372A (en) * | 2012-07-10 | 2012-11-14 | 天威新能源控股有限公司 | Device for stripping sample strip into EVA (Ethylene Vinyl Acetate) strip and rear veneer strip in detection of crosslinking degree |
| CN104409543A (en) * | 2014-11-13 | 2015-03-11 | 无锡中洁能源技术有限公司 | Anti-aging solar cell back plate and preparation method thereof |
| CN106221187A (en) * | 2016-08-22 | 2016-12-14 | 广西南宁荣威德新能源科技有限公司 | A kind of battery back-sheet composite |
| CN112695260A (en) * | 2020-12-23 | 2021-04-23 | 潍坊学院 | Amorphous nanocrystalline iron-based composite soft magnetic alloy and preparation method thereof |
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| WO2005108063A1 (en) * | 2004-05-03 | 2005-11-17 | Süd-Chemie AG | Multi-layer material, especially for packaging oxygen-sensitive products |
| US20070215195A1 (en) * | 2006-03-18 | 2007-09-20 | Benyamin Buller | Elongated photovoltaic cells in tubular casings |
| CN101097967A (en) * | 2007-06-29 | 2008-01-02 | 周均华 | Solar battery rear panel compound film and method for making same |
| CN101697358A (en) * | 2009-10-13 | 2010-04-21 | 常熟市冠日新材料有限公司 | Compound film of solar photovoltaic cell backplane |
-
2011
- 2011-12-27 CN CN2011104424470A patent/CN102432965A/en active Pending
Patent Citations (4)
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| WO2005108063A1 (en) * | 2004-05-03 | 2005-11-17 | Süd-Chemie AG | Multi-layer material, especially for packaging oxygen-sensitive products |
| US20070215195A1 (en) * | 2006-03-18 | 2007-09-20 | Benyamin Buller | Elongated photovoltaic cells in tubular casings |
| CN101097967A (en) * | 2007-06-29 | 2008-01-02 | 周均华 | Solar battery rear panel compound film and method for making same |
| CN101697358A (en) * | 2009-10-13 | 2010-04-21 | 常熟市冠日新材料有限公司 | Compound film of solar photovoltaic cell backplane |
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|---|
| 周祥兴: "《工程塑料牌号及生产配方》", 30 June 2008, article "二、聚偏二氟乙烯", pages: 089-093 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778372A (en) * | 2012-07-10 | 2012-11-14 | 天威新能源控股有限公司 | Device for stripping sample strip into EVA (Ethylene Vinyl Acetate) strip and rear veneer strip in detection of crosslinking degree |
| CN104409543A (en) * | 2014-11-13 | 2015-03-11 | 无锡中洁能源技术有限公司 | Anti-aging solar cell back plate and preparation method thereof |
| CN106221187A (en) * | 2016-08-22 | 2016-12-14 | 广西南宁荣威德新能源科技有限公司 | A kind of battery back-sheet composite |
| CN112695260A (en) * | 2020-12-23 | 2021-04-23 | 潍坊学院 | Amorphous nanocrystalline iron-based composite soft magnetic alloy and preparation method thereof |
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Application publication date: 20120502 |