Enhanced Adhesion of EVA Laminates to Primed Glass Substrates Subjected to Damp-Heat Exposure

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We investigated the effectiveness of glass-surface priming to promote enhanced adhesion of EVA laminates during damp-heat exposure at 85 C and 85% relative humidity. The primary objective was to develop advanced encapsulant formulations by incorporation of various primer formulations that exhibit improved adhesion during damp-heat exposure. Several primer formulations were identified that greatly enhanced the EVA adhesion strength, including to the extent that peeling could not be initiated, even for the laminates of the glass substrate/fast-cure EVA15295P/TPE backsheet (a Tedlar/polyester/EVA tri-laminate) that were exposed in a damp-heat test chamber for more than 750 h. The results show that a synergistic ... continued below

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7 pages

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Pern, F. J. & Jorgensen, G. J. February 1, 2005.

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We investigated the effectiveness of glass-surface priming to promote enhanced adhesion of EVA laminates during damp-heat exposure at 85 C and 85% relative humidity. The primary objective was to develop advanced encapsulant formulations by incorporation of various primer formulations that exhibit improved adhesion during damp-heat exposure. Several primer formulations were identified that greatly enhanced the EVA adhesion strength, including to the extent that peeling could not be initiated, even for the laminates of the glass substrate/fast-cure EVA15295P/TPE backsheet (a Tedlar/polyester/EVA tri-laminate) that were exposed in a damp-heat test chamber for more than 750 h. The results show that a synergistic increase in the interfacial hydrophobicity, siloxane density, and cross-linking density are the key attributes to the improvement in the EVA adhesion strength.

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7 pages

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  • Prepared for the 31st IEEE Photovoltaics Specialists Conference and Exhibition, Lake Buena Vista, FL (US), 01/03/2005--01/07/2005

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  • Report No.: NREL/CP-520-37391
  • Grant Number: AC36-99-GO10337
  • Office of Scientific & Technical Information Report Number: 15016458
  • Archival Resource Key: ark:/67531/metadc1404839

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  • February 1, 2005

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  • Jan. 23, 2019, 12:54 p.m.

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  • Feb. 7, 2019, 7:08 p.m.

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Pern, F. J. & Jorgensen, G. J. Enhanced Adhesion of EVA Laminates to Primed Glass Substrates Subjected to Damp-Heat Exposure, article, February 1, 2005; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1404839/: accessed March 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.