CN103746023A - Protective sleeve of solar cell - Google Patents
Protective sleeve of solar cell Download PDFInfo
- Publication number
- CN103746023A CN103746023A CN201310730314.2A CN201310730314A CN103746023A CN 103746023 A CN103746023 A CN 103746023A CN 201310730314 A CN201310730314 A CN 201310730314A CN 103746023 A CN103746023 A CN 103746023A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- polyester resin
- tail end
- sealing agent
- end sealing
- 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
- 230000001681 protective effect Effects 0.000 title abstract 3
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000004048 modification Effects 0.000 claims abstract description 5
- 238000012986 modification Methods 0.000 claims abstract description 5
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims abstract description 4
- VPKDCDLSJZCGKE-UHFFFAOYSA-N carbodiimide group Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920006337 unsaturated polyester resin Polymers 0.000 claims abstract description 4
- 229920002799 BoPET Polymers 0.000 claims description 12
- 239000005041 Mylar™ Substances 0.000 claims description 12
- 239000003085 diluting agent Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 229920006267 polyester film Polymers 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 3
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 229920001225 polyester resin Polymers 0.000 abstract 3
- 239000004645 polyester resin Substances 0.000 abstract 3
- 239000000470 constituent Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000013505 freshwater Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- 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
-
- 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
-
- 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
- B29C2948/92704—Temperature
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention aims to provide a method for generating a polyester film having good hydrolysis-resistant performance while reducing the application amount of a tail end sealing agent and the volatilization amount of constituents in a process, and to use the method to manufacture a protective sleeve of a solar cell. The protective sleeve of the solar cell comprises a film layer and clamping plate, the film layer wraps a battery pack at a sunny side and is fixed by the clamping plate at a backlight side, the film layer includes a polyester resin with an intrinsic viscosity of 0.6 to 0.65 dl/g and a tail end sealing agent which are mixed, the tail end sealing agent accounts for 0.2 to 0.3, and elongation at break is 100 to 115%. The polyester resin is an unsaturated polyester resin. The polyester resin is synthesized by trimethylolpropane and an isophthalic acid, and a diluter is used to perform viscosity modification. The tail end sealing agent is carbodiimide. The moisture content is controlled in the range of 10 to 100 ppm.
Description
Technical field
The present invention relates to a kind of protecting solar cell cover.
Background technology
Polyester has a large amount of carboxyls and hydroxyl conventionally in its surface, easily under the environment that contains moisture, is hydrolyzed, and often produces deterioration.Therefore, wait without under the environment being often exposed among wind and rain, the hydrolysis of the polyester that solar modules is used need to be inhibited.
In order to make polyester produce hydrolytic resistance, there is people to carry out catalytic hydrolysis reaction to it and reduce terminal hydroxyl, in order effectively to reduce terminal hydroxyl, tend to use some effective endcapped agent as additive.
But the mylar that is added with endcapped agent has a lot of drawbacks when melt extruding, during melting mixing, endcapped agent meeting produces the foreign matter such as gel, and the volatile ingredient that part has neither part nor lot in reaction causes engineering to pollute, and operating environment is worsened.And the price of endcapped agent is relatively high, a large amount of use has obstacle aborning.
Also incomplete in order to bring into play to greatest extent the effect of endcapped agent, melt extrude the endcapped agent reaction of adding in technique, thus after melt molding, unreacted sealer can continue to cause that capping effectively suppresses the increase of carboxyl.But just must excessive interpolation sealer in order to obtain this kind of effect.
And, in order to obtain the good polyester film of durability, reduce terminal hydroxyl quantity, namely use the resin raw material that AV value is lower to obtain solid phase particle.But when solid phase particle is used, the very large shear heat of needs when improving inherent viscosity melting promotes the decomposition reaction of sealer.
But, during melting, in order to suppress resin decomposition, often adopt low temperature to extrude, but cannot fully carry out capping under low temperature, simultaneously, in the resin raw material of low temperature, the degree of crystallization of the nuclei of crystallization of molten component on film is not higher, and overtension during extension is difficult to launch completely.
Summary of the invention
The object of the present invention is to provide the method for the polyester film that output anti-hydrolytic performance is good in the component volatilization amount in a kind of use amount and technique reducing endcapped agent, and utilize it to make protecting solar cell cover.
The present invention is achieved by the following technical solutions:
Described protecting solar cell cover; comprise rete and clamping plate; described rete wraps battery pack in day side; and by described clamping plate, fixed in backlight; described rete comprises mylar and the endcapped agent mixing of inherent viscosity at 0.6～0.65dl/g; endcapped agent institute accounting is 0.2～0.3, and elongation at break is 100～115%.
Further, described mylar is unsaturated polyester resin.
Further, described mylar is that trimethylolpropane and M-phthalic acid are synthetic, and has carried out viscosity modification with diluent.
Further, described endcapped agent is carbodiimide.
Further, moisture control is between 10～100ppm.
Beneficial effect of the present invention is to describe in conjunction with relevant data in embodiment part.
Embodiment
Below in conjunction with embodiment, the present invention is further elaborated:
Inherent viscosity is mixed in mylar and the endcapped agent of 0.6～0.65dl/g, endcapped agent institute accounting is for being 0.6～1.2%, the two is adopted to extruder melting mixing, when the fusing point of described polyester film is T, the temperature in described extruder region is T ℃～T+200 ℃, carries out with this understanding the expressing technique of molten resin.
Above-mentioned raw material also can be encapsulated as half-finished premix after making, and reuses when needed.
Described mylar is unsaturated polyester resin.When unsaturated-resin is synthetic, range of viscosities is more easily controlled.
Described mylar is that trimethylolpropane and M-phthalic acid are synthetic, and has carried out viscosity modification with diluent.Diluent can be selected organic alcohols, and as ethanol, or the inorganic powder of inertia also can.
Described endcapped agent is carbodiimide.
Add the moisture control of mylar of described extruder between 10～100ppm.During excess moisture, easily produce vapour pressure, be unfavorable for that product is synthetic.
Described ratio equivalent is 10～15eq/t.Endcapped agent price is high, under the prerequisite that does not have obviously to reduce, reduces and uses as far as possible in effect.
Described extruder is biaxial extruder, and the pressure of extrusion is controlled between 800～1000Pa.This can be adjusted according to actual needs, sees the resin kind of selecting.
The temperature in described extruder region is T ℃～T+150 ℃.
The preferred extrusion way of the present invention is, biaxial extruder screw diameter is L, its screw rod direction longitudinal length is 5L～10L, in this region, heat, wherein resin enters with the temperature of 170 ℃, in the process to outlet motion, be heated to the highest 300 ℃, then the edge heating temperature of outlet of extruder temperature is 70 ℃, according to this technique, because the fusing point half of resin itself is more than 100 degree, treat that curing liquid resin should not export out quenching, thereby outlet need to keep uniform temperature, make the resin can quenching moulding, also can be not overheated and mobility causes excessively being by force difficult to moulding control.
Below provide technological parameter and the properties of product data of the film that the present invention makes.
Brief description about upper table data is as follows:
IV value is inherent viscosity; AV value is acid number, and 7, No. 8 examples are comparative example.
The present invention is when selecting endcapped agent concentration, needn't take the doubly mode of excessive use of 4-5 in the past, can not cause after reaction finishes, also having more than half sealer remnants, the reactivity of sealer is more than 50%, reacting dose was with level was fair in the past, thereby sealing effect does not obviously reduce, simultaneously, in the present invention, can not produce too much volatile component when the high temperature because of the abundant residues of sealer and affect properties of product, the elongation at break of product own can reach that more than 100% (conventional polyester film is about 100%, after modification, can improve), can meet its application requirements.
In comparative example, changed the inherent viscosity of mylar, will produce the doubly excessive situation (No. 8 examples) that just can obtain required product of reacting with endcapped agent of 4-5 in the past, or do not use enough endcapped agent just cannot obtain the situation (No. 9 examples) of qualified products, simultaneously, for this series products, the uniformity that single axle extruding machine is extruded does not have the effective of biaxial extruder.
One of purposes of the present invention is can be used as protecting solar cell cover, and rete wraps battery pack in day side, and by described clamping plate, is fixed in backlight.
Another purposes of the present invention is can be used as the rete of simple and easy solar seawater desalination treatment pond, comprise internal layer seawater pond and outer fresh-water pool, top is attached with transparent film layer and connects and wrap fresh-water pool, in inner seawater pond, moisture evaporates and is condensed on rete and flows into fresh-water pool, and fresh-water pool top is provided with dividing plate and prevents moisture evaporation in fresh-water pool.
The detailed description of this patent being made according to above specification; its object is to be convenient to those skilled in the art better understands application mode and the scope of this patent; can not be interpreted as limitation of the present invention; in conjunction with the general knowledge of above content and this area; under the prerequisite of aim that does not depart from this patent, the alternative that is equal to that those skilled in the art make the technical scheme of recording in this patent document still falls into protection scope of the present invention.
Claims (5)
1. a protecting solar cell cover; comprise rete and clamping plate; described rete wraps battery pack in day side; and by described clamping plate, fixed in backlight; it is characterized in that: described rete comprises mylar and the endcapped agent mixing of inherent viscosity at 0.6～0.65dl/g; endcapped agent institute accounting is 0.2～0.3, and elongation at break is 100～115%.
2. protecting solar cell cover according to claim 1, is characterized in that: described mylar is unsaturated polyester resin.
3. protecting solar cell cover according to claim 1, is characterized in that: described mylar is that trimethylolpropane and M-phthalic acid are synthetic, and has carried out viscosity modification with diluent.
4. protecting solar cell cover according to claim 1, is characterized in that: described endcapped agent is carbodiimide.
5. protecting solar cell cover according to claim 1, is characterized in that: moisture control is between 10～100ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730314.2A CN103746023A (en) | 2013-12-26 | 2013-12-26 | Protective sleeve of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310730314.2A CN103746023A (en) | 2013-12-26 | 2013-12-26 | Protective sleeve of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103746023A true CN103746023A (en) | 2014-04-23 |
Family
ID=50503030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310730314.2A Pending CN103746023A (en) | 2013-12-26 | 2013-12-26 | Protective sleeve of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746023A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013027543A1 (en) * | 2011-08-25 | 2013-02-28 | 富士フイルム株式会社 | Polyester film and method for manufacturing same, solar battery back sheet, and solar battery module |
-
2013
- 2013-12-26 CN CN201310730314.2A patent/CN103746023A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013027543A1 (en) * | 2011-08-25 | 2013-02-28 | 富士フイルム株式会社 | Polyester film and method for manufacturing same, solar battery back sheet, and solar battery module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101602884B (en) | Heat-resistant polylactic acid composite material and preparation method thereof | |
| CN107652540A (en) | A kind of uvioresistant poly acrylic composite and its preparation method and application | |
| CN102837408A (en) | Double screw extruder and method for using same to prepare light-smell polypropylene | |
| CN102532664A (en) | Silane cross-linked polyethylene insulating material and production method thereof | |
| CN101348594A (en) | Glass fiber reinforced unplasticised polyvinyl chloride material and preparation thereof | |
| CN104629281A (en) | Biodegradable polylactic acid thermal conductive composite material and prepration method thereof | |
| CN104356527A (en) | PVC base material with low shrinkage and preparation method and preparation equipment thereof | |
| CN1152914C (en) | Components and producing method of positive-temperature-coefficient conductive polymer composite material | |
| CN104371219A (en) | Medical heat-resistant anti-aging composite plastic and preparation method thereof | |
| CN103571313B (en) | The vibrin of a kind of hydroxyalkyl amide type height levelling powder coating, this coating and preparation method | |
| CN104277433B (en) | A kind of high-performance thermoplastic polyester composite and preparation method thereof | |
| CN105017765A (en) | Basic magnesium sulfate whisker/PA610T composite material and preparation method thereof | |
| CN109666280A (en) | One kind is exempted to spray superelevation weather-resisting transparent polycarbonate material and preparation method thereof | |
| CN103772687A (en) | Preparation method of polyester resin film | |
| CN105802158B (en) | A kind of PET/PBS alloy and preparation method thereof | |
| CN103746023A (en) | Protective sleeve of solar cell | |
| CN103722725A (en) | Manufacturing process of double-shaft extrusion resin film | |
| CN103724608A (en) | Polyester resin film premix | |
| CN103724607A (en) | Polyester resin film | |
| CN103739028A (en) | Simple solar-powered seawater desalination pond | |
| CN101614852A (en) | Environment-friendly optical cable filling material | |
| CN104693800A (en) | Impact-resistant conductive PPS/LCP composite material and preparation method thereof | |
| CN108503976B (en) | Modified polyvinyl chloride material and preparation method thereof | |
| CN113512281B (en) | Modified PGA material, preparation method thereof and modified PGA film | |
| CN108503975A (en) | PVC composite materials and its preparation process for luggage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 523000 Guangdong Province, Dongguan City Zhangmutou town Baiguo cave village Baida Industrial Street Panlong Road No. 8 Applicant after: DONGGUAN GRAND-HI INDUSTRY CO., LTD. Address before: 523000 Guangdong Province, Dongguan City Zhangmutou town Baiguo cave village Baida Industrial Street Panlong Road No. 8 Applicant before: Dongguan Guanghaida Rubber & Plastic Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DONGGUAN GUANGHAIDA RUBBER + PLASTIC CO., LTD. TO: GUANGDONG GUANGHAIDA INDUSTRIAL CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |