CN104403240B - High light-shading solar battery back membrane material and preparation method thereof - Google Patents

High light-shading solar battery back membrane material and preparation method thereof Download PDF

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CN104403240B
CN104403240B CN201410639625.2A CN201410639625A CN104403240B CN 104403240 B CN104403240 B CN 104403240B CN 201410639625 A CN201410639625 A CN 201410639625A CN 104403240 B CN104403240 B CN 104403240B
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黄新东
刘天人
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SUNSHORE SOLAR ENERGY CO Ltd
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Wuxi Zhongjie Energy Technology Co Ltd
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Abstract

The invention discloses a high light-shading solar battery back membrane material and a preparation method thereof; the high light-shading solar battery back membrane material comprises the following component by mass: 40-60 parts of polyvinylidene fluoride, 10-20 parts of polymethyl methacrylate, 10-20 parts of acrylic acid, 2-6 parts of polyvinyl butyral, 2-8 parts of a coupling agent, 3-6 parts of salicylic acid, 2-4 parts of chitosan, 5-8 parts of titanium dioxide, 1-3 parts of polyoxy glycol oleate, and 0.1-0.53 part of bromohexane polyvinyl pyridine. The high light-shading solar battery back membrane material has good mechanical properties, can be well bonded with a substrate, is not easy to peel, strong in light shading property, and has the advantages of simple preparation process and chemical corrosion resistance.

Description

High light-proofness solar battery back film material and preparation method thereof
Technical field
The invention belongs to solar battery back film field of material technology, be specifically related to a kind of high light-proofness solar battery back Membrane material and preparation method thereof.
Background technology
In today of society's high speed development, non-renewable resources constantly reduce, and find for this and tap a new source of energy into pendulum and exist In the process of human development.It is well known that the use of non-renewable energy resources is often along with the pollution of ecological environment, this is also It is mankind's difficult problems of having to go solve.Solar energy does not has any nonstaining property as a kind of green energy resource to environment, and Its source is simple, it can be said that in the existence time limit of the mankind, it is inexhaustible.Solar energy is not only one Secondary performance source, or clean energy resource, its aboundresources, generally exist, right without transporting, also can freely use, the most important thing is Environment does not has any pollution.Solaode also because of the particularity of solar energy have not available for other generation modes many excellent Point: without geographical restrictions, do not consume fuel, scale is changeable, motility is big, pollution-free, noiselessness, safe and reliable, build Cycle is short, safeguard simply, have most the probability of large-scale application.So a lot of experts using solar energy as alternatively The energy goes exploitation, it is desirable to the sun can be brought benefit to the mankind.Nowadays it is by sun electricity greatly that the solar energy used has Pond conversion gets.Because solaode has sensing to light, it is possible to the luminous energy being radiated at its surface is converted to electric energy.Mesh Before, under the effort of relevant expert, solaode is own through having moved towards commercialization and industrialization.
The coating process of solar battery back film is to make the EVA by binding agent rank TPT under hot pressing condition now (the trilamellar membrane structure of PVF and PET) bonds on solar panel, and then plays the effect of protection inside battery.Product The solar battery back film TPT changed occurs in that peeling, and tracing it to its cause is caused by the cementitiousness difference of TPT film surface.So Developing and a kind of both had good chemical resistance, ultraviolet resistance line, have good mechanical property, also wanting can be with The new solar battery back film that what base material was intact be bonded together.Research finds the chemical-resistance that PVDF resin is outstanding, pressure Electrical property is also fine, and weatherability is also extraordinary, and its processing is also relatively easy to.But the strongest C-of PVDF itself F key causes its surface hydrophilicity poor, wants to use PVDF to replace TPT will improve it as the notacoria of solaode Surface hydrophilicity.The transparency of pvdf membrane is relatively good simultaneously, it is impossible to meeting the shading requirement of solar battery back film, it is right to need It is studied further.
Summary of the invention
It is an object of the invention to provide a kind of high light-proofness solar battery back film material and preparation method thereof, this solar energy Battery back film material has good mechanical property, it is possible to intact with base material is bonded together, and light-proofness is strong, is provided simultaneously with resistance to Chemical corrosivity, and preparation technology is simple.
To achieve these goals, the technological means that the present invention uses is:
A kind of high light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 40 ~ 60 parts, polymethyl methacrylate 10 ~ 20 parts, 10 ~ 20 parts of acrylic acid, polyvinyl butyral resin 2 ~ 6 parts, coupling agent 2 ~ 8 Part, salicylic acid 3 ~ 6 parts, chitosan 2 ~ 4 parts, titanium dioxide 5 ~ 8 parts, polyoxyethylene glycol oleate 1 ~ 3 part.
Also include bromohexane polyvinylpyridine 0.1 ~ 0.53 part.
Described coupling agent is Silane coupling agent KH550.
High light-proofness solar battery back film material, component and each constituent mass mark are preferably as follows: Kynoar 45 ~ 55 parts, polymethyl methacrylate 13 ~ 18 parts, 12 ~ 15 parts of acrylic acid, polyvinyl butyral resin 3 ~ 5 parts, coupling agent 4 ~ 6 Part, salicylic acid 4.5 parts, chitosan 3.8 parts, titanium dioxide 6 ~ 7 parts, polyoxyethylene glycol oleate 2 parts, bromohexane polyethylene Yl pyridines 0.1 ~ 0.53 part.
High light-proofness solar battery back film material, component and each constituent mass mark are preferably as follows: Kynoar 50 Part, polymethyl methacrylate 16 parts, 13 parts of acrylic acid, polyvinyl butyral resin 4 parts, coupling agent 5 parts, salicylic acid 4.5 Part, chitosan 3.8 parts, titanium dioxide 6.8 parts, polyoxyethylene glycol oleate 2 parts, bromohexane polyvinylpyridine 0.29 Part.
The preparation method of high light-proofness solar battery back film material, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 130 ~ 150 DEG C, and drying time is 1 ~ 3h, standby With；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 600 ~ 900W, and open-assembly time is 5 ~ 8h, obtains modification Kynoar.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
In step 1), oven temperature is 140 DEG C, and drying time is 2h.
Step 2) medium ultraviolet luminous power is 800W, open-assembly time is 6h.
In step 3), extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, mouth Film temperature is 180 ~ 200 DEG C.
In step 3), blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, mouth Film temperature is 190 ~ 210 DEG C.
Beneficial effect: one high light-proofness solar battery back film material that the present invention provides and preparation method thereof, this is too Sun can have good mechanical property by battery back film material, it is possible to intact with base material is bonded together, and is not easily stripped, light-proofness By force, it is provided simultaneously with chemical resistance, and preparation technology is simple.
Detailed description of the invention
Embodiment 1
A kind of high light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 40 Part, polymethyl methacrylate 10 parts, 10 parts of acrylic acid, polyvinyl butyral resin 2 parts, Silane coupling agent KH550 2 parts, Salicylic acid 3 parts, chitosan 2 parts, titanium dioxide 5 parts, polyoxyethylene glycol oleate 1 part.
Preparation method, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 140 DEG C, and drying time is 2h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 800W, and open-assembly time is 6h, obtains modified polyvinilidene fluorine Ethylene.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
Extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, and membrana oralis temperature is 200℃。
Blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, and membrana oralis temperature is 210℃。
Embodiment 2
A kind of high light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 60 Part, polymethyl methacrylate 20 parts, 20 parts of acrylic acid, polyvinyl butyral resin 6 parts, Silane coupling agent KH550 8 parts, Salicylic acid 6 parts, chitosan 4 parts, titanium dioxide 8 parts, polyoxyethylene glycol oleate 3 parts.
Preparation method, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 140 DEG C, and drying time is 2h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 800W, and open-assembly time is 6h, obtains modified polyvinilidene fluorine Ethylene.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
Extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, and membrana oralis temperature is 200℃。
Blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, and membrana oralis temperature is 210℃。
Embodiment 3
High light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 45 parts, Polymethyl methacrylate 13 parts, 12 parts of acrylic acid, polyvinyl butyral resin 3 parts, coupling agent Silane coupling agent KH550 46 parts, salicylic acid 4.5 parts, chitosan 3.8 parts, titanium dioxide 6 parts, polyoxyethylene glycol oleate 2 parts, bromohexane polyethylene Yl pyridines 0.1 part.
Preparation method, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 140 DEG C, and drying time is 2h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 800W, and open-assembly time is 6h, obtains modified polyvinilidene fluorine Ethylene.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
Extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, and membrana oralis temperature is 200℃。
Blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, and membrana oralis temperature is 210℃。
Embodiment 4
High light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 55 parts, Polymethyl methacrylate 18 parts, 15 parts of acrylic acid, polyvinyl butyral resin 5 parts, coupling agent 6 parts, salicylic acid 4.5 parts, Chitosan 3.8 parts, titanium dioxide 7 parts, polyoxyethylene glycol oleate 2 parts, bromohexane polyvinylpyridine 0.53 part.
Preparation method, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 140 DEG C, and drying time is 2h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 800W, and open-assembly time is 6h, obtains modified polyvinilidene fluorine Ethylene.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
Extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, and membrana oralis temperature is 200℃。
Blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, and membrana oralis temperature is 210℃。
Embodiment 5
High light-proofness solar battery back film material, component and each constituent mass mark are as follows: Kynoar 50 parts, Polymethyl methacrylate 16 parts, 13 parts of acrylic acid, polyvinyl butyral resin 4 parts, coupling agent 5 parts, salicylic acid 4.5 parts, Chitosan 3.8 parts, titanium dioxide 6.8 parts, polyoxyethylene glycol oleate 2 parts, bromohexane polyvinylpyridine 0.29 part.
Preparation method, comprises the steps:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 140 DEG C, and drying time is 2h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, so Rear addition Kynoar, is exposed under ultraviolet light, and uv power is 800W, and open-assembly time is 6h, obtains modified polyvinilidene fluorine Ethylene.
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) modified polyvinilidene that obtains In fluorothene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod Blowfilm shaping.
Extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, and membrana oralis temperature is 200℃。
Blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, and membrana oralis temperature is 210℃。
The high light-proofness solar battery back film material obtaining embodiment 1 ~ 5 carries out performance test, and method of testing is:
Mechanics property analysis: model: wDW3O20 micro-control electronic universal tester;Maximum test force: 20KN;Accuracy Level: 0.5%, Kexin Experimental Instrument Co., Ltd., Changchun City.Composite material film blade is cut into certain length and width, thick rectangle, uses WDW3O20 type electronic universal tester carries out mechanical stretch, sets just test force value 0.5N, crossbeam speed 2mm/min.
Peel strength: method of testing sees ASTMD-1876；
Shelf depreciation: method of testing sees IEC60664-1；
Yellowness index: method of testing sees ASTME-313-05；Test result is shown in Table 1.
Table 1:
Hot strength/MPa Extension at break degree/% Peel strength/(N/cm) Shelf depreciation/VDC Yellowness index
Embodiment 1 30.56 15.7 52.4 1800 1.1
Embodiment 2 31.24 16.3 53.1 1800 1.3
Embodiment 3 40.12 32.5 66.8 2600 0.6
Embodiment 4 41.23 34.1 64.2 2600 0.6
Embodiment 5 48.67 40.6 73.9 3100 0.5

Claims (10)

1. one kind high light-proofness solar battery back film material, it is characterised in that component and each constituent mass number are as follows:
Kynoar 40 ~ 60 parts, polymethyl methacrylate 10 ~ 20 parts, 10 ~ 20 parts of acrylic acid, polyvinyl butyral resin 2 ~ 6 parts, coupling agent 2 ~ 8 parts, salicylic acid 3 ~ 6 parts, chitosan 2 ~ 4 parts, titanium dioxide 5 ~ 8 parts, polyoxyethylene glycol oleate 1 ~ 3 part.
The highest light-proofness solar battery back film material, it is characterised in that: also include the poly-second of bromohexane Thiazolinyl pyridine 0.1 ~ 0.53 part.
The highest light-proofness solar battery back film material, it is characterised in that: described coupling agent is silane Coupling agent KH550.
The highest light-proofness solar battery back film material, it is characterised in that component and each constituent mass Number is as follows: Kynoar 45 ~ 55 parts, polymethyl methacrylate 13 ~ 18 parts, 12 ~ 15 parts of acrylic acid, polyvinyl alcohol Butyral 3 ~ 5 parts, coupling agent 4 ~ 6 parts, salicylic acid 4.5 parts, chitosan 3.8 parts, titanium dioxide 6 ~ 7 parts, polyoxyethylene glycol Oleate 2 parts, bromohexane polyvinylpyridine 0.1 ~ 0.53 part.
The highest light-proofness solar battery back film material, it is characterised in that component and each constituent mass Number is as follows: Kynoar 50 parts, polymethyl methacrylate 16 parts, 13 parts of acrylic acid, polyvinyl butyral resin 4 Part, coupling agent 5 parts, salicylic acid 4.5 parts, chitosan 3.8 parts, titanium dioxide 6.8 parts, polyoxyethylene glycol oleate 2 parts, Bromohexane polyvinylpyridine 0.29 part.
6. the preparation method of high light-proofness solar battery back film material described in claim 1, it is characterised in that include walking as follows Rapid:
1) putting in baking oven by polymethyl methacrylate, oven temperature is 130 ~ 150 DEG C, and drying time is 1 ~ 3h, standby；
2) by acrylic acid, polyvinyl butyral resin, salicylic acid, chitosan and polyoxyethylene glycol oleate mix homogeneously, then add Entering Kynoar, be exposed under ultraviolet light, uv power is 600 ~ 900W, and open-assembly time is 5 ~ 8h, obtains modified polyvinilidene Fluorothene；
3) polymethyl methacrylate and titanium dioxide step 1) dried joins step 2) the modified polyvinilidene fluorine second that obtains In alkene, stirring, add coupling agent, through Single screw extrusion pelletize after mix homogeneously, then by the pellet made by single screw rod blown film Molding.
The preparation method of the highest light-proofness solar battery back film material, it is characterised in that: step 1) Middle oven temperature is 140 DEG C, and drying time is 2h.
The preparation method of the highest light-proofness solar battery back film material, it is characterised in that: step 2) Medium ultraviolet luminous power is 800W, and open-assembly time is 6h.
The preparation method of the highest light-proofness solar battery back film material, it is characterised in that: step 3) Middle extruding pelletization condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 190 DEG C, four sections 220 DEG C, die temperature is 180 ~ 200℃。
The preparation method of the highest light-proofness solar battery back film material, it is characterised in that: step 3) in, blowfilm shaping condition is: one section 150 DEG C, two-stage nitration 165 DEG C, three sections 200 DEG C, four sections 210 DEG C, die temperature is 190 ~ 210℃。
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CN104893188B (en) * 2015-04-22 2018-10-19 杭州福膜新材料科技股份有限公司 A kind of low surface gloss degree polyvinylidene difluoride film and preparation method thereof
CN106009024A (en) * 2016-06-15 2016-10-12 傅兴琴 Back film for silicon solar panel
CN107325459A (en) * 2017-05-12 2017-11-07 江苏东昇光伏科技有限公司 A kind of preparation method of PVDF notacorias used for solar batteries
CN109912907A (en) * 2018-10-26 2019-06-21 辽宁旭日新能源科技有限公司 A kind of solar cell backboard polyvinylidene fluoride film and preparation method thereof

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US20040202866A1 (en) * 2003-04-11 2004-10-14 Kernander Carl P. Bright white protective laminates
JP5763548B2 (en) * 2009-11-30 2015-08-12 電気化学工業株式会社 Polyvinylidene fluoride resin composition, film, back sheet and solar cell module
JP5695965B2 (en) * 2011-04-28 2015-04-08 電気化学工業株式会社 Vinylidene fluoride resin film, solar cell backsheet and solar cell module
CN102432963A (en) * 2011-08-17 2012-05-02 常州荣晟新材料科技有限公司 Fluorinated weather-resistant film for solar photovoltaic battery back plate and preparation method of fluorinated weather-resistant film
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