CN103897340A - Epoxy resin-base film for flexible or thin-film solar cells and preparation method thereof - Google Patents
Epoxy resin-base film for flexible or thin-film solar cells and preparation method thereof Download PDFInfo
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- CN103897340A CN103897340A CN201210589119.8A CN201210589119A CN103897340A CN 103897340 A CN103897340 A CN 103897340A CN 201210589119 A CN201210589119 A CN 201210589119A CN 103897340 A CN103897340 A CN 103897340A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
Abstract
The invention relates to an epoxy resin-base film for flexible or thin-film solar cells and a preparation method thereof. The film is prepared from the following components in parts by weight: 100 parts of epoxy resin and 0.0001-0.1 part of nano aluminum powder. The preparation method comprises the following steps: blending and extruding the epoxy resin base, nano aluminum powder and the like by a screw blending and extrusion apparatus, filtering, introducing into a running die head, cooling, drawing, coiling and the like to obtain the epoxy resin-base film for solar cells. The product is attached to the photic surface of the thin-film solar cell or used as an upper packaging film of the solar cell to directly enhance the generating efficiency of the flexible or thin-film solar cell.
Description
Technical field
The present invention relates to a kind of flexibility or thin-film solar cells epoxy resin basement membrane and preparation method thereof, by using this film to be encapsulated in the surface of flexibility or thin-film solar cells incidence surface, directly improve the efficiency of flexibility or thin-film solar cells.
Background technology
The macromolecular compound that contains epoxide group in all molecular structures is referred to as epoxy resin.Epoxy resin after solidifying has good physics, chemical property, it has excellent bonding strength to the surface of metal and non-metallic material, dielectric properties are good, set shrinking percentage is little, product size good stability, and hardness is high, snappiness is better, to alkali and most of solvent-stable, thereby be widely used in national defence, each department of national economy, pour into a mould, the purposes such as dipping, lamination material, caking agent, coating.With regard to epoxy resin, its feature is: 1. various informative.Various resins, solidifying agent, modifier system almost can adapt to various application to form requirement, and its scope can be from extremely low viscosity to high melting solid.2. it is convenient to solidify.Select various solidifying agent, epoxy-resin systems almost can solidify in 0～180 ℃ of temperature range.3. adhesive power is strong.In epoxy resin molecular chain, intrinsic polarity hydroxyl and the existence of ehter bond, make it have very high adhesive power to various materials.Shrinkability when epoxy resin cure is low, and the internal stress of generation is little, and this also contributes to improve adhesion strength.4. shrinkability is low.The reaction of epoxy resin and solidifying agent used is to be undertaken by the ring-opening polymerization of epoxy group(ing) in direct addition reaction or molecular resin, does not have water or other volatile byproducts to emit.They are compared with unsaturated polyester resin, resol, demonstrate very low shrinkability (being less than 2%) in solidification process.5. mechanical property.Epoxy-resin systems after solidifying has good mechanical property.6. electrical property.Epoxy-resin systems after solidifying is a kind of superior isolation material with high dielectric property, resistance to surface leakage, resistance to electric arc.7. chemical stability.Conventionally, solidify after epoxy-resin systems there is good alkali resistance, acid resistance and solvent resistance.As other performance of cured epoxy system, chemical stability also depends on selected resin and solidifying agent.Suitably select epoxy resin and solidifying agent, can make it have special chemical stability.8. dimensional stability.Above-mentioned many performances comprehensive, makes epoxy-resin systems have outstanding dimensional stability and weather resistance.9. resistance to mould.The resistance to most of moulds of curing epoxy-resin systems can be used under harsh tropicalization.
Effectively utilizing in the middle of project of sun power: solar photovoltaic utilization is research field with fastest developing speed in the last few years, most active.The making of general solar cell is mainly take semiconductor material as basis, opto-electronic conversion reaction generating occurs after utilizing photoelectric material to absorb luminous energy.According to the difference of material therefor, solar cell can be divided into: 1, silicon solar cell; 2, take inorganic salt if the multi-element compounds such as gallium arsenide III-V compound, Cadmium Sulfide, copper indium diselenide are as the solar cell of material; 3, the solar cell of preparing with functional high molecule material; 4, nano-crystalline solar battery etc.
What prior art working efficiency was the highest is take III-V family semiconductor inorganic materials as raw-material product.For example: the quantum well of the single junction type of gallium arsenide/germanium falls into crystal structure, and its photoelectric transformation efficiency can reach >18 %; For example, and multiple junction quantum well falls into the solar cell of crystal structure: InGaP/gallium arsenide/germanium, its photoelectric transformation efficiency can be up to >30 %.Most widely used at present, take silicon as main: comprise non-crystalline silicon, photoelectric transformation efficiency approximately 9 %; Polysilicon, photoelectric transformation efficiency approximately 14 %; Silicon single crystal, photoelectric transformation efficiency approximately 17 %.Although in price, VI family elements Si is more cheap than III-V family semiconductor GaAs, the price of its manufacture, compared with polymer organic solar batteries, or expensive many; And in application, the light weight again overall plasticization organic solar batteries of the anxiety of crack-free can be realized via the processing of printing, except price reduces, be more suitable for the demand of portable electronic product, and indoor or cloudyly all can normally use (this is that siliceous solar cell is beyond one's reach), its practicality and market application range are promoted more.
Solar cell is a gordian technique, can advance more clean Energy production.But the Cost Problems of solar cell, has reduced the economic competitiveness of heliotechnics.For overcoming this problem, thin-film solar cells is the technology of current widespread use, can reduce in a large number the usage quantity of expensive semiconductor material, but the absorbing amount of thin-film solar cells is lower, and Performance Ratio is not gone up traditional solar cell.
Thin-film solar module is to be made up of glass substrate, metal level, transparency conducting layer, electrical function box, glueing material, semiconductor layer etc.Organic and inorganic composite solar battery is the solar cell based on organic conjugate polymer-inorganic nano-crystal composite system, because of while tool organic polymer material good film-forming property, level structure and band gap are easy to regulate, can prepare low cost, big area, flexible solar battery device and inorganic nano-crystal material high stability by wet method, high mobility, can construct the advantages such as ordered nano-structure, and become the study hotspot of area of solar cell in recent years.Metal nanoparticle can direct light enter solar cell better, prevents light escape.In traditional " thick film " solar cell, nanoparticle does not have any effect, is all by this film because all light absorbs, and this just relies on its thickness.But for film, nanoparticle just can be brought into play great role.Their scattering has increased light and has rested on the time in film, makes the light of overall absorption reach a kind of level, and traditional solar cell can match in excellence or beauty.
Aluminium and Nano silver grain are in the frequency spectrum of visible part, and focused ray enters solar cell well.But optical resonance also can cause nanoparticle absorb light, this efficiency that just means solar cell can be lower.Nano grain of silver sub-resonance is just in time in the crucial absorption spectrum part of solar cell, so the absorption of light is appreciable.Aluminum nanoparticles resonance has exceeded the crucial spectra part of solar cell.Loss to energy is less, and in addition, aluminum particulate is easy to passivation, although can change shape and size, after passivation, nanoparticle attribute change is very little.Nanoparticle has rough surface, and scattered beam can enter wide spectrum wavelength region more.This can bring larger absorption, thereby improves the whole efficiency of battery.
Summary of the invention
The object of this invention is to provide a kind of flexibility or thin-film solar cells epoxy resin basement membrane and preparation method thereof, by using this film to be encapsulated in the surface of flexibility or thin-film solar cells incidence surface, directly improve the efficiency of flexibility or thin-film solar cells.And tool has self-cleaning effect through flexibility or the thin-film solar cells of encapsulation.
For achieving the above object, the technical solution used in the present invention is as follows:
Flexibility of the present invention or thin-film solar cells epoxy resin basement membrane, it is made up of the following component of following weight parts: epoxy resin 100; Nanometer aluminium powder 0.0001-0.1.
Described epoxy resin is one or more the mixing in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin.Epoxy resin used in the present invention all can be purchased from commercially available.
The preparation method of epoxy resin basement membrane for flexibility of the present invention or thin-film solar cells, comprises the steps:
(1) by epoxy resin; Nanometer aluminium powder is even by agitator blended under agitation under-10 ~ 40 ℃ of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 20-290 ℃, extrudate after filtration, metering extrudes, curtain coating, cooling, drawing-off, traction, coiling process, obtains flexibility or thin-film solar cells epoxy resin basement membrane.
We have invented nanometer aluminium powder modified epoxy resin film.This film both can be used in the backlight place of thin-film solar cells, also can be used in the light inlet film surface of thin-film solar cells, also can be used in the middle layer of thin-film solar cells simultaneously, improved the efficiency of light absorption of solar cell.Improve the generating efficiency of solar cell.
Nano metal aluminum particulate is easy to passivation, although can change shape and size, after passivation, nanoparticle attribute change is very little.Nanoparticle has rough surface, and scattered beam can enter wide spectrum wavelength region more.This can bring larger absorption, thereby improves the whole efficiency of battery.The scattering of metallic aluminium nanoparticle has increased light and has rested on the time in film, makes the light of overall absorption reach a kind of level, and traditional solar cell can match in excellence or beauty.Through using the thin-film solar cells of film processing of the present invention to improve 3-15% than the thin-film solar cells performance without the processing of this film.Thin-film solar cells is used after this film, and metallic aluminium nanoparticle can direct light enter solar cell preferably, prevents light escape.Solve in traditional " thick film " solar cell, nanoparticle does not have any effect and all essential problems that relies on thickness solution of light absorption.
Embodiment
Embodiment 1
Glycidyl ether based epoxy resin (the sincere resin of Region of Kaihua County company limited) 100 Kg; Nanometer aluminium powder 0.02 Kg is even by agitator blended under agitation under 10 ℃ of temperature environments; Above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 25 ℃, extrudate through 120 order strainers filter, the operation such as volume pump turnover pressure difference 1MPa metering is extruded, casting machine curtain coating goes out film that 50UM is thick, rate drawing-off is stretched oneself and yawn in 10 ℃ of air coolings, 2 times, draw, batch, obtain a kind of flexibility or thin-film solar cells epoxy resin film.
Through using the thin-film solar cells of this film to improve 5.6% than untapped thin-film solar cells performance.
Embodiment 2
Glycidyl ester based epoxy resin (Long Xiang resin raw material company limited of Foshan City) 100 Kg; Nanometer aluminium powder 0.0001 Kg is even by agitator blended under agitation under-10 ℃ of temperature environments; Above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 20 ℃, extrudate through 120 order strainers filter, the operation such as volume pump turnover pressure difference 1MPa metering is extruded, casting machine curtain coating goes out film that 50UM is thick, rate drawing-off is stretched oneself and yawn in 10 ℃ of air coolings, 2 times, draw, batch, obtain a kind of flexibility or thin-film solar cells epoxy resin film.
Through using the thin-film solar cells of this film to improve 7.2% than untapped thin-film solar cells performance.
Embodiment 3
Racemic glycidol amine epoxy resin (Long Xiang resin raw material company limited of Foshan City) 100 Kg; Nanometer aluminium powder 0.005 Kg is even by agitator blended under agitation under 30 ℃ of temperature environments; Above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 120 ℃, extrudate through 120 order strainers filter, the operation such as volume pump turnover pressure difference 1MPa metering is extruded, casting machine curtain coating goes out film that 50UM is thick, rate drawing-off is stretched oneself and yawn in 10 ℃ of air coolings, 2 times, draw, batch, obtain a kind of flexibility or thin-film solar cells epoxy resin film.
Through using the thin-film solar cells of this film to improve 13.8% than untapped thin-film solar cells performance.
Embodiment 4
Line style aliphatic category epoxy resin (Yongzhou Li great resin raw material company limited) 100 Kg; Nanometer aluminium powder 0.1Kg is even by agitator blended under agitation under 40 ℃ of temperature environments; Above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 290 ℃, extrudate through 120 order strainers filter, the operation such as volume pump turnover pressure difference 1MPa metering is extruded, casting machine curtain coating goes out film that 50UM is thick, rate drawing-off is stretched oneself and yawn in 10 ℃ of air coolings, 2 times, draw, batch, obtain a kind of flexibility or thin-film solar cells epoxy resin film.
Through using the thin-film solar cells of this film to improve 10.6% than untapped thin-film solar cells performance.
Embodiment 5
Alicyclic based epoxy resin (Yongzhou Li great resin raw material company limited) 100 Kg; Nanometer aluminium powder 0.08 Kg is even by agitator blended under agitation under 0 ℃ of temperature environment; Above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 60 ℃, extrudate through 120 order strainers filter, the operation such as volume pump turnover pressure difference 1MPa metering is extruded, casting machine curtain coating goes out the film that 50UM is thick, rate drawing-off is stretched oneself and yawn in the air cooling of 10 ℃ of degree, 2 times, draw, batch, obtain a kind of flexibility or thin-film solar cells epoxy resin film.
Through using the thin-film solar cells of this film to improve 9.2% than untapped thin-film solar cells performance.
Claims (3)
1. a flexibility or thin-film solar cells epoxy resin basement membrane, is characterized in that: it is made up of the following component of following weight parts: epoxy resin 100; Nanometer aluminium powder 0.0001-0.1.
2. flexibility according to claim 1 or thin-film solar cells epoxy resin basement membrane, is characterized in that: described epoxy resin is one or more the mixing in glycidyl ether based epoxy resin, glycidyl ester based epoxy resin, Racemic glycidol amine epoxy resin, line style aliphatic category epoxy resin, alicyclic based epoxy resin.
3. the preparation method of epoxy resin basement membrane for flexibility as claimed in claim 1 or thin-film solar cells, is characterized in that: comprise the steps:
(1) by epoxy resin; Nanometer aluminium powder is even by agitator blended under agitation under-10 ~ 40 ℃ of temperature environments;
(2) above blend is imported to screw mixes forcing machine and carry out blending extrusion, temperature is controlled at 20-290 ℃, extrudate after filtration, metering extrudes, curtain coating, cooling, drawing-off, traction, coiling process, obtains flexibility or thin-film solar cells epoxy resin basement membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589119.8A CN103897340A (en) | 2012-12-31 | 2012-12-31 | Epoxy resin-base film for flexible or thin-film solar cells and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589119.8A CN103897340A (en) | 2012-12-31 | 2012-12-31 | Epoxy resin-base film for flexible or thin-film solar cells and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103897340A true CN103897340A (en) | 2014-07-02 |
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| CN201210589119.8A Pending CN103897340A (en) | 2012-12-31 | 2012-12-31 | Epoxy resin-base film for flexible or thin-film solar cells and preparation method thereof |
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| CN101359695A (en) * | 2008-09-02 | 2009-02-04 | 中国乐凯胶片集团公司 | Back plate of solar cell |
| CN101728439A (en) * | 2009-12-01 | 2010-06-09 | 洛阳神佳电子陶瓷有限公司 | Aluminum pulp composition of crystal silicon solar cell and preparation method thereof |
| CN102054878A (en) * | 2009-10-27 | 2011-05-11 | 苏州中来太阳能材料技术有限公司 | High barrier ultraviolet ray aging resistant solar cell back film and processing technique thereof |
| CN102169739A (en) * | 2011-02-25 | 2011-08-31 | 乐山新天源太阳能电力有限公司 | Nanometer aluminum paste for solar battery and manufacturing method thereof |
| CN102212273A (en) * | 2011-04-29 | 2011-10-12 | 上海安美特铝业有限公司 | Heat-conducting material used for solar photoelectricity-heat conversion equipment and preparation method thereof |
| CN102314956A (en) * | 2010-07-09 | 2012-01-11 | 硕禾电子材料股份有限公司 | Electroconductive alumina gel and manufacturing method thereof, solar cell and module thereof |
| CN102664204A (en) * | 2012-05-10 | 2012-09-12 | 苏州福斯特光伏材料有限公司 | Wear-resistant coated solar cell back plate |
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2012
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| CN101359695A (en) * | 2008-09-02 | 2009-02-04 | 中国乐凯胶片集团公司 | Back plate of solar cell |
| CN102054878A (en) * | 2009-10-27 | 2011-05-11 | 苏州中来太阳能材料技术有限公司 | High barrier ultraviolet ray aging resistant solar cell back film and processing technique thereof |
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| CN102169739A (en) * | 2011-02-25 | 2011-08-31 | 乐山新天源太阳能电力有限公司 | Nanometer aluminum paste for solar battery and manufacturing method thereof |
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