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2019 Vol.29, Issue 11 Preview Page
Peeling Behavior of Backsheet according to Surface Temperature of Photovoltaic Module

태양광 모듈 표면 온도 제어에 따른 백시트 박리 거동

Jeong-Hun Kim13
,
Jun-Kyu Lee1
,
Young-Soo Ahn1
,
Jeong-Gu Yeo1
,
Jin-Seok Lee1†
,
Gi-Hwan Kang2
,
Churl-Hee Cho3†
김 정훈13
,
이 준규1
,
안 영수1
,
여 정구1
,
이 진석1†
,
강 기환2
,
조 철희3†
1Separation and Conversion Materials Laboratory, Korea Institute of Energy Research, Daejeon 34129, Republic of Korea
2Photovoltaic Laboratory, Korea Institute of Energy Research, Dajeon 34129, Republic of Korea
3Graduate School of Energy Science and Technology, Chungnam National University, Dajeon 34134, Republic of Korea
1한국에너지기술연구원 분리변환소재연구실
2한국에너지기술연구원 태양광연구실
3충남대학교 에너지과학기술대학원
†Corresponding author E-Mail : jslee@kier.re.kr (J. S. Lee, KIER) choch@cnu.ac.kr (C. H. Cho, CNU)
November 2019. pp. 703-708
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Abstract

In this study, we investigate the relationship between the peeling behavior of the backsheet of a photovoltaic(PV) module and its surface temperature in order facilitate removal of the backsheet from the PV module. At low temperatures, the backsheet does not peel off whereas, at high temperatures, part of the backsheet remains on the surface of the PV module after the peeling process. The backsheet material remaining on the surface of the PV module is confirmed by X-ray diffraction(XRD) analysis to be poly-ethylene(PE). Differential scanning calorimetry(DSC) is also performed to investigate the interfacial characteristics of the layers of the PV module. In particular, DSC provides the melting temperature(Tm) of laminated ethylene vinyl acetate(EVA) and of the backsheet on the PV module. It is found that the backsheet does not peel off below the Tm of ethylene of EVA, while the PE layer of the backsheet remains on the surface of the PV module above the Tm of the PE. Thus, the backsheet is best removed at a temperature between the Tm of ethylene and that of PE layer.

Keywords
photovoltaic module
recycling
backsheet
peeling
DSC analysis
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 29
  • No :11
  • Pages :703-708
  • Received Date : 2019-09-17
  • Revised Date : 2019-10-10
  • Accepted Date : 2019-10-15
  • DOI :https://doi.org/10.3740/MRSK.2019.29.11.703
Journal Informaiton Korean Journal of Materials Research Korean Journal of Materials Research
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