CN109912907A - A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof - Google Patents
A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof Download PDFInfo
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- CN109912907A CN109912907A CN201811260785.0A CN201811260785A CN109912907A CN 109912907 A CN109912907 A CN 109912907A CN 201811260785 A CN201811260785 A CN 201811260785A CN 109912907 A CN109912907 A CN 109912907A
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Abstract
The invention discloses a kind of solar cell backboard polyvinylidene fluoride films and preparation method thereof, are made of raw material from the following weight: 40-60 parts of Kynoar, 10-20 parts of polymethyl methacrylate, 10-20 parts of acrylic acid, 2-8 parts of ethylene-vinyl acetate copolymer, 2-12 parts of silane coupling agent, 3-10 parts of salicylic acid, 2-10 parts of chitosan, 5-15 parts of sodium carboxymethylcellulose, 3-10 parts of silica, 4-15 parts of diatomite, 1-10 parts of zinc oxide, 1-5 parts of polyoxyethylene glycol oleate.Solar cell backboard of the present invention is cheap with Kynoar film raw material, and fine and smooth, stretch-proof is not easy to break, and at high temperature, shrinking percentage is low, is highly suitable as the material of solar energy backboard.
Description
Technical field
The present invention relates to technical field of solar batteries, and in particular to a kind of solar cell backboard polyvinylidene fluoride film
And preparation method thereof.
Background technique
Solar battery is also known as " solar chip " or " photocell ", is a kind of photoelectricity using the sunlight direct generation of electricity
Wafer.As long as the illumination that it is satisfied certain illumination conditions is arrived, moment output voltage and can have the case where circuit
Lower generation electric current.Physically it is being known as photovoltaic (Photovoltaic is abbreviated as PV), abbreviation photovoltaic.
Solar battery is the device that solar energy is directly translated into electric energy, is that solution ecology, environmental pollution and the energy are short
One of scarce effective way.Solar battery is made of glass, hot melt adhesive film, cell silicon chip and backboard, and dorsulum is located at
Rear surface of solar cell outermost layer, effect are to guarantee that solar battery is run under conditions of closed, reduce the work that environment influences
With extending the service life of solar battery, be the very important component part of solar battery.
Battery back-sheet is located at module backside outermost, protects solar battery group not invaded by steam in outdoor environment
Erosion, blocking oxygen prevents from aoxidizing, it is desirable that high temperature resistant is low temperature resistant, good insulating, ageing-resistant, corrosion-resistant.
Summary of the invention
To solve problem of the prior art, the present invention provides a kind of solar cell backboard polyvinylidene fluoride film and its system
Preparation Method extends the service life of battery back-sheet, reduces costs.
The purpose of the present invention is achieved through the following technical solutions: a kind of solar cell backboard polyvinylidene fluoride film,
It is made of raw material from the following weight:
40-60 parts of Kynoar, 10-20 parts of polymethyl methacrylate, 10-20 parts of acrylic acid, ethene-vinyl acetate
2-8 parts of copolymer, 2-12 parts of silane coupling agent, 3-10 parts of salicylic acid, 2-10 parts of chitosan, 5-15 parts of sodium carboxymethylcellulose,
3-10 parts of silica, 4-15 parts of diatomite, 1-10 parts of zinc oxide, 1-5 parts of polyoxyethylene glycol oleate.
According to technical solution above, in preferred situation, the solar cell backboard polyvinylidene fluoride film, by with
The raw material of lower parts by weight is made:
45-55 parts of Kynoar, 12-18 parts of polymethyl methacrylate, 12-18 parts of acrylic acid, ethene-vinyl acetate
2-5 parts of copolymer, 2-8 parts of silane coupling agent, 3-5 parts of salicylic acid, 2-4 parts of chitosan, 5-10 parts of sodium carboxymethylcellulose, dioxy
4-8 parts of SiClx, 7-10 parts of diatomite, 2-7 parts of zinc oxide, 2-4 parts of polyoxyethylene glycol oleate.
The present invention also provides a kind of preparation methods of solar cell backboard polyvinylidene fluoride film, include the following steps:
(1) polymethyl methacrylate is put into baking oven and is dried；
(2) by acrylic acid, ethylene-vinyl acetate copolymer, salicylic acid, chitosan, sodium carboxymethylcellulose and polyoxy second
Glycol oleate is uniformly mixed, and Kynoar is then added, and is exposed under ultraviolet light, is obtained modified Kynoar；
(3) polymethyl methacrylate of step (1) drying, diatomite, silica, zinc oxide are added to step
(2) in the Kynoar obtained, silane coupling agent is added in stirring, is squeezed out, is granulated through single screw rod after being uniformly mixed, then by list
Screw rod blowfilm shaping.
According to technical solution above, in preferred situation, in step (1), the drying condition are as follows: 130-150 DEG C, 1-
3h。
According to technical solution above, in preferred situation, in step (2), uv power 500-800W, exposure duration
For 6-10h.
According to technical solution above, in preferred situation, in step (3), the film blowing machine head temperature are as follows: 190-210
℃。
According to technical solution above, in preferred situation, the thickness of the solar cell backboard polyvinylidene fluoride film
It is 20-35 μm.
Beneficial effects of the present invention:
Solar cell backboard of the present invention is cheap with Kynoar film raw material, and fine and smooth, stretch-proof is not easy to break, and
At high temperature, shrinking percentage is low, is highly suitable as the material of solar energy backboard.With good weatherability, water vapor rejection effect
And hydrophobicity, preferable adhesive property.The requirement of solar battery back film items main performance is reached.
Specific embodiment
Following nonlimiting examples can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Embodiment 1
A kind of solar cell backboard polyvinylidene fluoride film, is made of raw material from the following weight:
45 parts of Kynoar, 18 parts of polymethyl methacrylate, 14 parts of acrylic acid, ethylene-vinyl acetate copolymer 3
Part, 5 parts of silane coupling agent, 4 parts of salicylic acid, 3 parts of chitosan, 7 parts of sodium carboxymethylcellulose, 6 parts of silica, 8 parts of diatomite,
4 parts of zinc oxide, 3 parts of polyoxyethylene glycol oleate.
The preparation method of above-mentioned solar cell backboard polyvinylidene fluoride film, includes the following steps:
(1) polymethyl methacrylate is put into baking oven and is dried；Drying condition are as follows: 140,2h；
(2) by acrylic acid, ethylene-vinyl acetate copolymer, salicylic acid, chitosan, sodium carboxymethylcellulose and polyoxy second
Glycol oleate is uniformly mixed, and Kynoar is then added, and is exposed under ultraviolet light, uv power 650W, exposure duration
For 8h, modified Kynoar is obtained；
(3) polymethyl methacrylate of step (1) drying, diatomite, silica, zinc oxide are added to step
(2) in the Kynoar obtained, silane coupling agent is added in stirring, is squeezed out, is granulated through single screw rod after being uniformly mixed, then by list
Screw rod blowfilm shaping obtains the film with a thickness of 25 μm；The film blowing machine head temperature are as follows: 200 DEG C.
Embodiment 2
A kind of solar cell backboard polyvinylidene fluoride film, is made of raw material from the following weight:
50 parts of Kynoar, 12 parts of polymethyl methacrylate, 12 parts of acrylic acid, ethylene-vinyl acetate copolymer 4
Part, 76 parts silane coupled, 4 parts of salicylic acid, 3 parts of chitosan, 8 parts of sodium carboxymethylcellulose, 7 parts of silica, 8 parts of diatomite,
4 parts of zinc oxide, 4 parts of polyoxyethylene glycol oleate.
The preparation method of above-mentioned solar cell backboard polyvinylidene fluoride film, includes the following steps:
(1) polymethyl methacrylate is put into baking oven and is dried；Drying condition are as follows: 130,3h；
(2) by acrylic acid, ethylene-vinyl acetate copolymer, salicylic acid, chitosan, sodium carboxymethylcellulose and polyoxy second
Glycol oleate is uniformly mixed, and Kynoar is then added, and is exposed under ultraviolet light, uv power 700W, exposure duration
For 7h, modified Kynoar is obtained；
(3) polymethyl methacrylate of step (1) drying, diatomite, silica, zinc oxide are added to step
(2) in the Kynoar obtained, silane coupling agent is added in stirring, is squeezed out, is granulated through single screw rod after being uniformly mixed, then by list
Screw rod blowfilm shaping obtains the film with a thickness of 35 μm；The film blowing machine head temperature are as follows: 190 DEG C.
Embodiment 3
A kind of solar cell backboard polyvinylidene fluoride film, is made of raw material from the following weight:
55 parts of Kynoar, 12 parts of polymethyl methacrylate, 12 parts of acrylic acid, ethylene-vinyl acetate copolymer 4
Part, 76 parts silane coupled, 4 parts of salicylic acid, 3 parts of chitosan, 8 parts of sodium carboxymethylcellulose, 7 parts of silica, 8 parts of diatomite,
4 parts of zinc oxide, 4 parts of polyoxyethylene glycol oleate.
The preparation method of above-mentioned solar cell backboard polyvinylidene fluoride film, includes the following steps:
(1) polymethyl methacrylate is put into baking oven and is dried；Drying condition are as follows: 150,1h；
(2) by acrylic acid, ethylene-vinyl acetate copolymer, salicylic acid, chitosan, sodium carboxymethylcellulose and polyoxy second
Glycol oleate is uniformly mixed, and Kynoar is then added, and is exposed under ultraviolet light, uv power 600W, exposure duration
For 6h, modified Kynoar is obtained；
(3) polymethyl methacrylate of step (1) drying, diatomite, silica, zinc oxide are added to step
(2) in the Kynoar obtained, silane coupling agent is added in stirring, is squeezed out, is granulated through single screw rod after being uniformly mixed, then by list
Screw rod blowfilm shaping obtains the film with a thickness of 30 μm；The film blowing machine head temperature are as follows: 200 DEG C.
The present invention has good tensile strength, and stretch-proof, and at high temperature, shrinking percentage is low, is suitble to application.With good
Good weatherability, water vapor rejection effect and hydrophobicity, preferable adhesive property.The every main property of solar battery back film is reached
The requirement of energy.
For any person skilled in the art, without departing from the scope of the technical proposal of the invention, all
Many possible changes and modifications are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as equivalent
The equivalent embodiment of variation.Therefore, anything that does not depart from the technical scheme of the invention, according to the technical essence of the invention to
Any simple modifications, equivalents, and modifications that upper embodiment is done should all still fall within the range of technical solution of the present invention protection
It is interior.
Claims (7)
1. a kind of solar cell backboard polyvinylidene fluoride film, which is characterized in that be made of raw material from the following weight:
40-60 parts of Kynoar, 10-20 parts of polymethyl methacrylate, 10-20 parts of acrylic acid, ethene-vinyl acetate copolymerization
2-8 parts of object, 2-12 parts of silane coupling agent, 3-10 parts of salicylic acid, 2-10 parts of chitosan, 5-15 parts of sodium carboxymethylcellulose, dioxy
3-10 parts of SiClx, 4-15 parts of diatomite, 1-10 parts of zinc oxide, 1-5 parts of polyoxyethylene glycol oleate.
2. solar cell backboard polyvinylidene fluoride film according to claim 1, which is characterized in that by following parts by weight
Raw material be made:
45-55 parts of Kynoar, 12-18 parts of polymethyl methacrylate, 12-18 parts of acrylic acid, ethene-vinyl acetate copolymerization
2-5 parts of object, 2-8 parts of silane coupling agent, 3-5 parts of salicylic acid, 2-4 parts of chitosan, 5-10 parts of sodium carboxymethylcellulose, silica
4-8 parts, 7-10 parts of diatomite, 2-7 parts of zinc oxide, 2-4 parts of polyoxyethylene glycol oleate.
3. the preparation method of solar cell backboard polyvinylidene fluoride film as described in claim 1, which is characterized in that including
Following steps:
(1) polymethyl methacrylate is put into baking oven and is dried；
(2) by acrylic acid, ethylene-vinyl acetate copolymer, salicylic acid, chitosan, sodium carboxymethylcellulose and polyoxyethylene glycol
Oleate is uniformly mixed, and Kynoar is then added, and is exposed under ultraviolet light, is obtained modified Kynoar；
(3) polymethyl methacrylate of step (1) drying, diatomite, silica, zinc oxide step (2) are added to obtain
To Kynoar in, silane coupling agent is added in stirring, squeezes out, is granulated through single screw rod after being uniformly mixed, then is blown by single screw rod
Film molding.
4. the preparation method of solar cell backboard polyvinylidene fluoride film according to claim 3, which is characterized in that step
Suddenly in (1), the drying condition are as follows: 130-150 DEG C, 1-3h.
5. the preparation method of solar cell backboard polyvinylidene fluoride film according to claim 3, which is characterized in that step
Suddenly in (2), uv power 500-800W, exposure duration 6-10h.
6. the preparation method of solar cell backboard polyvinylidene fluoride film according to claim 3, which is characterized in that step
Suddenly in (3), the film blowing machine head temperature are as follows: 190-210 DEG C.
7. the preparation method of solar cell backboard polyvinylidene fluoride film according to claim 3, which is characterized in that institute
State solar cell backboard polyvinylidene fluoride film with a thickness of 20-35 μm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811260785.0A CN109912907A (en) | 2018-10-26 | 2018-10-26 | A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811260785.0A CN109912907A (en) | 2018-10-26 | 2018-10-26 | A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof |
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| CN201811260785.0A Pending CN109912907A (en) | 2018-10-26 | 2018-10-26 | A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120286627A1 (en) * | 2011-05-12 | 2012-11-15 | Korea Institute Of Science And Technology | Polymer blend composition and actuators using the same |
| CN103928649A (en) * | 2014-04-10 | 2014-07-16 | 佛山市金辉高科光电材料有限公司 | Novel modified non-woven fabric lithium-ion battery diaphragm and preparation method thereof |
| CN104403240A (en) * | 2014-11-13 | 2015-03-11 | 无锡中洁能源技术有限公司 | High light-shading solar battery back membrane material and preparation method thereof |
| CN107256902A (en) * | 2016-09-08 | 2017-10-17 | 合肥智慧殿投资管理有限公司 | A kind of solar cell backboard film and preparation method thereof |
-
2018
- 2018-10-26 CN CN201811260785.0A patent/CN109912907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120286627A1 (en) * | 2011-05-12 | 2012-11-15 | Korea Institute Of Science And Technology | Polymer blend composition and actuators using the same |
| CN103928649A (en) * | 2014-04-10 | 2014-07-16 | 佛山市金辉高科光电材料有限公司 | Novel modified non-woven fabric lithium-ion battery diaphragm and preparation method thereof |
| CN104403240A (en) * | 2014-11-13 | 2015-03-11 | 无锡中洁能源技术有限公司 | High light-shading solar battery back membrane material and preparation method thereof |
| CN107256902A (en) * | 2016-09-08 | 2017-10-17 | 合肥智慧殿投资管理有限公司 | A kind of solar cell backboard film and preparation method thereof |
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Application publication date: 20190621 |