CN201417776Y - Radiation modified fluororesin thin film and solar flexible battery - Google Patents
Radiation modified fluororesin thin film and solar flexible battery Download PDFInfo
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- CN201417776Y CN201417776Y CN 200920144610 CN200920144610U CN201417776Y CN 201417776 Y CN201417776 Y CN 201417776Y CN 200920144610 CN200920144610 CN 200920144610 CN 200920144610 U CN200920144610 U CN 200920144610U CN 201417776 Y CN201417776 Y CN 201417776Y
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- resin film
- fluorine resin
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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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Abstract
The utility model relates to a radiation modified fluororesin thin film, including a base layer made from exhaustive fluorinated ethylene propylene with dual-mode molecular weight distribution and a radiation graft modified graft layer formed on the surface of the base layer. According to the utility model, exhaustive fluorinated ethylene propylene with dual-mode molecular weight distribution is used to produce the base layer; the base layer is subject to the radiation graft modification treatment to form a graft layer, which has relatively high viscosity with the EVA layer; and using the thinfilm as the panel, the panel has relatively high corrosion resistance, high weather resistance, high flame retardance, the outer surface of the thin film has high scratching resistance, the inner surface has increased viscosity with the EVA layer, as the entire film has relatively high transparency.
Description
Technical field:
The utility model relates to a kind of solar flexible battery, more relates to a kind of film that is applicable to flexible solar battery.
Background technology:
Solar panel is a laminated construction normally, mainly comprises surface layer of glass, EVA sealant, solar battery sheet, EVA sealant and solar battery back film, and wherein solar battery sheet is by two-layer EVA sealant sealed envelope.The main effect of solar battery panel is that the high good overall mechanical strength of sunlight transmitance is arranged, and can prevent that in addition water vapor permeable from sealant, influencing the useful life of battery sheet.Therefore, the facial mask of solar cell of the prior art adopts face glass usually, and the light transmission of this face glass is relatively good, and intensity is also high, and water resistance might as well.But this face glass does not have flexibility, can not be crooked, frangible.For example, Chinese patent application number is the application for a patent for invention of CN200710164692.3, and open day is on September 3rd, 2008, discloses to make to have the method and apparatus that strengthens the solar panel that light catches, and the substrate that comprises front and back wherein is provided; Draw together the film of one or more layers crosslinked fluoropolymer at least in the stacked package of positive upper strata, wherein fluoropolymer layer or multilayer have the thickness between 75 to 150nm, and fluoropolymer layer or multilayer are positioned on the carrier that comprises ethylene copolymer so that carrier contacts with substrate.Such scheme mainly is to film on the surface of glass, makes glass surface have the fluorine material layer.But the shortcoming that this scheme has face glass equally to be had.
The utility model content:
Technical problem to be solved in the utility model overcomes the deficiency of above-mentioned prior art, and a kind of fluorine resin film with radiation modification of medium surface energy, high-adhesion, high scratch resistance is provided.
Another technical problem to be solved in the utility model provides a kind of solar flexible battery that adopts fluorine resin film as panel, makes that solar cell has high-weatherability, high scratch resistance and good electric property, long service life.
The fluorine resin film of a kind of radiation modification that provides according to the utility model comprises basic unit that exhaustive fluorinated ethylene propylene with bimodulus molecular weight distribution is made and the grafting layer through the irradiation grafting modification that is formed on described substrate surface.
The fluorine resin film of a kind of radiation modification that provides according to the utility model also has following attached technical characterictic:
Described exhaustive fluorinated ethylene propylene is formed by high molecular weight component exhaustive fluorinated ethylene propylene and the mixing of lower-molecular-weight component exhaustive fluorinated ethylene propylene.
The thickness of described basic unit is 0.02mm-0.35mm.
The thickness of described basic unit is 0.15mm-0.3mm.
The thickness of described grafting layer is 0.01 micron to 5 microns.
The thickness of described grafting layer is 0.1 micron to 2 microns.
Described grafting layer is that basic unit makes through irradiation activation interpolation modifier.
A kind of solar flexible battery that provides according to the utility model, comprise flexible battery main body and EVA glue-line, the fluorine resin film of the surface adhesion radiation modification of described EVA glue-line, described fluorine resin film comprise exhaustive fluorinated ethylene propylene basic unit of making and the grafting layer through the irradiation grafting modification that is formed on described substrate surface with bimodulus molecular weight distribution.
The fluorine resin film of a kind of radiation modification that provides according to the utility model has following advantage: at first, the utility model adopts the exhaustive fluorinated ethylene propylene of bimodulus molecular weight distribution to make basic unit, and basic unit is carried out the irradiation grafting modification handle, form the grafting layer, make itself and EVA layer have higher caking property, and adopt above-mentioned film as panel, have higher corrosion resistance, high weatherability, high flame retardant, make the film outer surface have high scratch resistance simultaneously, inner surface increases the caking property with the EVA layer, has higher transparency; Secondly, owing to form the grafting layer, make that rete of the present utility model is closely knit, improved barrier property, especially further improve the obstruct to steam, humidity resistance is good, and electric property and weather resistance are better.
A kind of solar flexible battery that provides according to the utility model has following advantage: with the panel of film of the present utility model as solar cell, have highly corrosion resistant, weatherability, high transmission rate, can satisfy the needs of solar flexible battery fully, prolong the useful life of solar flexible battery.
Description of drawings:
Fig. 1 is the structural representation of a kind of embodiment of the present utility model.
Embodiment:
Referring to Fig. 1, the embodiment of the fluorine resin film of a kind of radiation modification that provides at the utility model comprises basic unit 1 that exhaustive fluorinated ethylene propylene with bimodulus molecular weight distribution is made and the grafting layer 2 through the irradiation grafting modification that is formed on described basic unit 1 surface.Basic unit 1 of the present utility model is that the exhaustive fluorinated ethylene propylene with bimodulus molecular weight is made, and wherein exhaustive fluorinated ethylene propylene is also referred to as F46, and the film of making is called fep film.This material has higher protection against the tide, anti-permeability, and electric property and weather resistance are also very high, and it is in light weight.And light transmittance reaches 97%, and light transmission might as well.Adopt the panel of above-mentioned film, be processed into other shapes easily as flexible battery, and light transmission might as well, can fully satisfy the demand of solar cell mask.The utility model is provided with the grafting layer of making through the irradiation grafting modification 2 on film, thereby the surface energy of film is promoted, and hydrophiling makes its easy bonding.Promptly under the prerequisite that guarantees the advantage that this material had, overcome the shortcoming that itself characteristic has.Therefore, the barrier of film of the present utility model is better, and whole humidity resistance, electric property and weather resistance are better.Make film have higher caking property, be more prone to bond with EVA.
In the foregoing description that the utility model provides, described exhaustive fluorinated ethylene propylene is mixed the exhaustive fluorinated ethylene propylene of the bimodulus molecular weight distribution that forms by high molecular weight component exhaustive fluorinated ethylene propylene and lower-molecular-weight component exhaustive fluorinated ethylene propylene.The content of described high molecular weight component exhaustive fluorinated ethylene propylene is 30%-50%, specifically can elect 30%, 35%, 40%, 45% and 50% as.The content of described lower-molecular-weight component exhaustive fluorinated ethylene propylene is 70%-50%, and concrete correspondence elects 70%, 65% as, 60%, 55% and 50%.Adopt the exhaustive fluorinated ethylene propylene of bimodulus molecular weight distribution can improve overall performance, better satisfy demand of the present utility model.
In the foregoing description that the utility model provides, the thickness of described basic unit 1 is the 0.02mm-0.35mm micron, and preferred scheme is 0.15mm-0.3mm, concrete numerical value can be elected 0.02mm, 0.02mm, 0.05mm as, 0.10mm, 0.15mm, 0.20mm, 0.25mm, 0.30mm 0.35mm selects the basic unit 1 of above-mentioned thickness can make panel have higher intensity, and have higher light transmittance, be beneficial to the daylighting of solar cell.And the selection of above-mentioned concrete one-tenth-value thickness 1/10, the better relation between balance light transmission and the intensity.Make and satisfying under the requirement of strength to have higher light transmission.
In the foregoing description that the utility model provides, the thickness of described grafting layer 2 is 0.01 micron to 5 microns, preferred scheme is between 0.1 micron to 2 microns, and concrete numerical value can be elected 0.01 micron, 0.05 micron, 0.1 micron, 0.2 micron, 0.5 micron, 0.8 micron, 1 micron, 1.5 microns, 2 microns as.The thickness of grafting layer 2 is limited in the above-mentioned size range can better meets close-burning demand, and select above-mentioned concrete one-tenth-value thickness 1/10, can better meet technological requirement, be beneficial to the processing of grafting layer.
In the foregoing description that the utility model provides, described grafting layer 2 is made for basic unit 1 activates interpolation modifier through irradiation.Described modifier is selected from one or more in siloxanes, fluorosilicone or the fluorinated acrylate.Modifier specifically can be elected vinyltriethoxysilane, trifluoro propyl triethoxysilane, fluorinated acrylate and acrylate as.Described grafting layer 2 improves the quantity of film active function groups through the high-energy irradiation modification, forms dendritic structure, strengthened adhesion strength with EVA, guarantee the sealing of flexible battery assembly, weatherability, whole reliability, the useful life that makes flexible battery was greater than 25 years.
The preparation technology of the fluorine resin film of a kind of radiation modification of preparation the foregoing description that the utility model provides mainly may further comprise the steps:
(1), the exhaustive fluorinated ethylene propylene of high molecular weight component and the exhaustive fluorinated ethylene propylene of lower-molecular-weight component are mixed and made into the exhaustive fluorinated ethylene propylene particle with bimodulus molecular weight distribution;
(2), above-mentioned particle is prepared wide cut basic unit through Langaloy spiral type extruder head, described basic unit has the exhaustive fluorinated ethylene propylene of bimodulus molecular weight distribution; The extruder head here has high temperature resistant, corrosion-resistant characteristic, can satisfy processing needs of the present utility model.
(3), substrate surface is carried out high-energy irradiation handles the activation substrate surface; The high-energy irradiation treatment technology here can adopt in the prior art irradiation apparatus of comparative maturity to handle.
(4), basic unit's spraying or roller coating or showering or dipping modifier to activating, through 20-70 degree centigrade of heating, make substrate surface form the grafting layer.Add modifier at this, make basic unit 1 surface form needed grafting layer 2, produce the film that meets above-mentioned requirements.Above-mentioned technology of the present utility model is fairly simple, can realize serialization production, has improved production efficiency, has reduced the manufacturing cost of this facial mask, is beneficial to marketing.
In step (4), heating-up temperature is 20-70 degree centigrade, is preferably 40-50 degree centigrade, and concrete numerical value can be selected from 20 degrees centigrade, 30 degrees centigrade, 40 degrees centigrade, 45 degrees centigrade, 50 degrees centigrade, 60 degrees centigrade, 70 degrees centigrade.Said temperature is handled, and can fully satisfy the shaping needs of grafting layer 2.
The modifier that adopts in preparation technology of the present utility model is selected from one or more in siloxanes, fluorosilicone or the fluorinated acrylate.These modifier all can buy finished product in market.
According to a kind of solar flexible battery that the utility model provides, comprise flexible battery main body and EVA glue-line, the fluorine resin film of the surface adhesion radiation modification of described EVA glue-line, described fluorine resin film are the described fluorine resin film of the foregoing description.Adopt the panel of above-mentioned film, can fully satisfy flexible battery in shape requirement as solar flexible battery, and, have highly corrosive, high-weatherability and electric property preferably, satisfy the requirement that the flexible battery requirement was used 25 years.
Claims (6)
1, a kind of fluorine resin film of radiation modification is characterized in that: comprise exhaustive fluorinated ethylene propylene basic unit of making and the grafting layer through the irradiation grafting modification that is formed on described substrate surface with bimodulus molecular weight distribution.
2, the fluorine resin film of a kind of radiation modification as claimed in claim 1 is characterized in that: the thickness of described basic unit is 0.02mm-0.35mm.
3, the fluorine resin film of a kind of radiation modification as claimed in claim 2 is characterized in that: the thickness of described basic unit is 0.15mm-0.3mm.
4, the fluorine resin film of a kind of radiation modification as claimed in claim 1 is characterized in that: the thickness of described grafting layer is 0.01 micron to 5 microns.
5, the fluorine resin film of a kind of radiation modification as claimed in claim 4 is characterized in that: the thickness of described grafting layer is 0.1 micron to 2 microns.
6, a kind of solar flexible battery comprises flexible battery main body and EVA glue-line, it is characterized in that: the fluorine resin film of the surface adhesion radiation modification of described EVA glue-line, described fluorine resin film are the described fluorine resin film of above-mentioned arbitrary claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920144610 CN201417776Y (en) | 2009-02-24 | 2009-02-24 | Radiation modified fluororesin thin film and solar flexible battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920144610 CN201417776Y (en) | 2009-02-24 | 2009-02-24 | Radiation modified fluororesin thin film and solar flexible battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417776Y true CN201417776Y (en) | 2010-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920144610 Expired - Lifetime CN201417776Y (en) | 2009-02-24 | 2009-02-24 | Radiation modified fluororesin thin film and solar flexible battery |
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| Country | Link |
|---|---|
| CN (1) | CN201417776Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814534B (en) * | 2009-02-24 | 2012-02-29 | 苏州中来光伏新材股份有限公司 | Radiation modification fluorine resin film, preparation process and solar flexible battery |
-
2009
- 2009-02-24 CN CN 200920144610 patent/CN201417776Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814534B (en) * | 2009-02-24 | 2012-02-29 | 苏州中来光伏新材股份有限公司 | Radiation modification fluorine resin film, preparation process and solar flexible battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU JOLYWOOD SUNWATT CO., LTD. Free format text: FORMER NAME: JOLYWOOD (SUZHOU) SOLAR MATERIAL TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 215542 Chang Kun Industrial Park, 32, Sha Bang Town, Jiangsu, Qingnian Road, Changshou City Patentee after: Jolywood (Suzhou ) Sunwatt Co., Ltd. Address before: 215500 Jiangsu province Changshou City Yushan High-tech Industrial Park Jianye Road No. 3 Patentee before: Jolywood (Suzhou) Solar Material Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |