Investigation of the crack propensity of co-extruded polypropylene based backsheets

Gernot Oreski; Chiara Barretta; Astrid Macher; Gabriele Christine Eder; Lukas Neumaier; Markus Feichtner; Minna  Aarnio-Winterhof

Investigation of the crack propensity of co-extruded polypropylene based backsheets

Gernot Oreski, Chiara Barretta, Astrid Macher, Gabriele Christine Eder, Lukas Neumaier, Markus Feichtner, Minna Aarnio-Winterhof

Sensor Applications (SEA)

Research output: Contribution to conference (No Proceedings) › Paper › peer-review

Abstract

Co-extruded backsheets based on polypropylene (PP) are an interesting alternative to laminated backsheets containing polyester films (PET). Backsheet cracking has become a frequent failure mode in the last years, causing not only safety issues but on the long term also reducing the lifetime of PV modules. In this work the crack susceptibility of co-extruded backsheets based on PA and PP was investigated using solder bump coupon specimens. The laminated samples were exposed to test sequence of exposure to UV light followed by thermal cycles. Overall, the PP backsheets showed excellent stability and no susceptibility to cracking. By comparison, the PA based backsheets showed next to significant discoloration also strong cracking after a few test cycles.

Original language	American English
Publication status	In preparation - Jun 2022
Event	49th IEEE Photovoltaic Specialists Conference - Pennsylvania Convention Center, Philadelphia, United States Duration: 5 Jun 2022 → 10 Jun 2022 https://ieee-pvsc.org/PVSC49/

Conference

Conference	49th IEEE Photovoltaic Specialists Conference
Abbreviated title	PVSC 49
Country/Territory	United States
City	Philadelphia
Period	5/06/22 → 10/06/22
Internet address	https://ieee-pvsc.org/PVSC49/

Cite this

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title = "Investigation of the crack propensity of co-extruded polypropylene based backsheets",

abstract = "Co-extruded backsheets based on polypropylene (PP) are an interesting alternative to laminated backsheets containing polyester films (PET). Backsheet cracking has become a frequent failure mode in the last years, causing not only safety issues but on the long term also reducing the lifetime of PV modules. In this work the crack susceptibility of co-extruded backsheets based on PA and PP was investigated using solder bump coupon specimens. The laminated samples were exposed to test sequence of exposure to UV light followed by thermal cycles. Overall, the PP backsheets showed excellent stability and no susceptibility to cracking. By comparison, the PA based backsheets showed next to significant discoloration also strong cracking after a few test cycles. ",

author = "Gernot Oreski and Chiara Barretta and Astrid Macher and Eder, {Gabriele Christine} and Lukas Neumaier and Markus Feichtner and Minna Aarnio-Winterhof",

year = "2022",

month = jun,

language = "Englisch (Amerika)",

note = "49th IEEE Photovoltaic Specialists Conference ; Conference date: 05-06-2022 Through 10-06-2022",

url = "https://ieee-pvsc.org/PVSC49/",

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TY - CONF

T1 - Investigation of the crack propensity of co-extruded polypropylene based backsheets

AU - Oreski, Gernot

AU - Barretta, Chiara

AU - Macher, Astrid

AU - Eder, Gabriele Christine

AU - Neumaier, Lukas

AU - Feichtner, Markus

AU - Aarnio-Winterhof, Minna

PY - 2022/6

Y1 - 2022/6

N2 - Co-extruded backsheets based on polypropylene (PP) are an interesting alternative to laminated backsheets containing polyester films (PET). Backsheet cracking has become a frequent failure mode in the last years, causing not only safety issues but on the long term also reducing the lifetime of PV modules. In this work the crack susceptibility of co-extruded backsheets based on PA and PP was investigated using solder bump coupon specimens. The laminated samples were exposed to test sequence of exposure to UV light followed by thermal cycles. Overall, the PP backsheets showed excellent stability and no susceptibility to cracking. By comparison, the PA based backsheets showed next to significant discoloration also strong cracking after a few test cycles.

AB - Co-extruded backsheets based on polypropylene (PP) are an interesting alternative to laminated backsheets containing polyester films (PET). Backsheet cracking has become a frequent failure mode in the last years, causing not only safety issues but on the long term also reducing the lifetime of PV modules. In this work the crack susceptibility of co-extruded backsheets based on PA and PP was investigated using solder bump coupon specimens. The laminated samples were exposed to test sequence of exposure to UV light followed by thermal cycles. Overall, the PP backsheets showed excellent stability and no susceptibility to cracking. By comparison, the PA based backsheets showed next to significant discoloration also strong cracking after a few test cycles.

M3 - Papier

T2 - 49th IEEE Photovoltaic Specialists Conference

Y2 - 5 June 2022 through 10 June 2022

ER -