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Super-weather-resistant solar cell protecting film and preparation method thereof

A solar cell and protective film technology, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of inability to prevent ultraviolet rays from penetrating, no significant improvement, failure, etc., and achieve excellent anti-ultraviolet and anti-humidity, excellent moisture The effect of barrier ability and broad market application prospect

Inactive Publication Date: 2019-02-22
绍兴福膜新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PVDF or its copolymer as the skin layer cannot prevent the penetration of ultraviolet rays. As time goes by, ultraviolet rays will inevitably still cause damage to the modified product components in the middle layer, causing the separation of the interface layer and eventually cause hidden dangers
[0007] Patent CN106585010A discloses a double-layer co-extruded PVDF film for photovoltaic backplanes. The film has not been significantly improved, and because the PMMA component itself will change its chemical structure under ultraviolet irradiation, further experience of high temperature and humidity will further accelerate the degradation of the material, eventually leading to the risk of failure

Method used

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  • Super-weather-resistant solar cell protecting film and preparation method thereof

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Embodiment 1

[0050] A super-weather-resistant solar cell protective film, comprising an outer protective layer, an intermediate support layer and an inner adhesive layer from the outside to the inner, the outer protective layer is fixed to the intermediate support layer, the intermediate support layer is fixed to the inner adhesive layer, Wherein each layer component comprises by weight part:

[0051] Outer protective layer: 90 parts of polyvinylidene fluoride, 6 parts of nano-titanium dioxide, 3 parts of polytetrafluoroethylene, 0.5 part of antioxidant system, and 0.5 part of light stabilizer.

[0052] Intermediate support layer: 52 parts of polyvinylidene fluoride, 27 parts of polybutylene terephthalate, 10 parts of nano-scale titanium dioxide, 5 parts of toughening agent, 2 parts of antioxidant system, 2 parts of compatibilizer, acid absorption 1 part of anti-hydrolysis agent and 1 part of anti-hydrolysis agent.

[0053] Inner bonding layer: 80 parts of polyvinylidene fluoride, 10 part...

Embodiment 2

[0057] A super-weather-resistant solar cell protective film, comprising an outer protective layer, an intermediate support layer and an inner adhesive layer from the outside to the inner, the outer protective layer is fixed to the intermediate support layer, the intermediate support layer is fixed to the inner adhesive layer, Wherein each layer component comprises by weight part:

[0058] Outer protective layer: 89 parts of polyvinylidene fluoride, 7 parts of nano-sized zinc oxide, 2 parts of tetrafluoroethylene-perfluoropropyl perfluorovinyl ether copolymer, 1 part of antioxidant system, 0.5 parts of light stabilizer, 0.5 parts of acid absorbing agent.

[0059] Intermediate support layer: 50 parts of polyvinylidene fluoride, 25 parts of polymethyl methacrylate, 10 parts of nano-sized titanium dioxide, 5 parts of toughening agent, 2 parts of antioxidant system, 2 parts of compatibilizer, nano-sized montmorillonite 2 parts, 1 part of acid absorber, and 3 parts of ACR lubricant...

Embodiment 3

[0064] A super-weather-resistant solar cell protective film, comprising an outer protective layer, an intermediate support layer and an inner adhesive layer from the outside to the inner, the outer protective layer is fixed to the intermediate support layer, the intermediate support layer is fixed to the inner adhesive layer, Wherein each layer component comprises by weight part:

[0065] Outer protective layer: 90 parts of poly(vinylidene fluoride-hexafluoropropylene) copolymer, 7 parts of nano-scale titanium dioxide, 2 parts of tetrafluoroethylene-hexafluoropropylene copolymer, 0.5 part of antioxidant system, 0.5 part of light stabilizer .

[0066] Intermediate support layer: 50 parts of polyvinylidene fluoride, 27 parts of polybutylene terephthalate (PBT), 12 parts of nano-scale titanium dioxide, 5 parts of toughening agent, 0.5 parts of antioxidant system, 3 parts of compatibilizer , 0.5 parts of acid absorbing agent, 1.5 parts of hydrolysis resistance agent.

[0067] In...

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Abstract

The invention provides a super-weather-resistant solar cell protecting film and a preparation method thereof. The solar cell protecting film has obvious ultraviolet resistance and damp-heat aging resistance and remarkable moisture obstruction capacity and oxygen obstruction capacity, so that the service life of a solar cell can be relatively effectively prolonged. An outer protecting layer contains a fluorine-containing polymer, an ultraviolet obstruction agent, an antioxidant system and other functional aids; a middle support layer contains at least one of polyvinylidene fluoride and a polyvinylidene fluoride polymer as well as a modified material, an inorganic filler, an ultraviolet absorbent, the antioxidant system and other functional aids; and an inner bonding layer contains at leastone of polyvinylidene fluoride and a polyvinylidene fluoride polymer as well as a modified material, a compatilizer, the antioxidant system and other functional aids. The preparation method comprisesthe steps of respectively carrying out mixing, twin-screw extrusion granulation and drying so as to obtain three layers of particles, respectively putting the particles into feeding funnels of a three-layer extruder, and preparing the super-weather-resistant solar cell protecting film by virtue of a three-layer co-extrusion blow molding or casting process.

Description

technical field [0001] The invention relates to a super-weather-resistant solar cell protective film and a preparation method thereof. Background technique [0002] Solar power generation constitutes an important part of the solar energy strategy with its advantages of non-pollution, sustainability, large amount, wide distribution, and various utilization forms. In recent years, it has been strongly encouraged by governments around the world and has achieved considerable and rapid development. As a variety of new energy, solar cells must demonstrate their distinctive cost performance in order to maintain their competitive advantages compared with conventional thermal power generation or other new energy sources such as wind power, hydropower, and nuclear power. healthy development. To this end, manufacturers and operators of the various components of solar cells have spared no effort to carry out innovative research to continuously improve the cost performance of solar cel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B27/08B32B27/20B32B27/30B32B27/32B32B27/36B32B33/00H01L31/048
CPCB32B7/12B32B27/08B32B27/20B32B27/304B32B27/322B32B27/36B32B33/00B32B2307/71B32B2307/7246B32B2307/73H01L31/0481Y02E10/50
Inventor 顾方明王佩刚罗树林刘会举
Owner 绍兴福膜新材料有限公司