Modified EVA Encapsulant Formulations for Low Temperature Processing: Preprint

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Presented at the 2001 NCPV Program Review Meeting: We have developed several new ethylene-vinyl acetate (EVA) formulations modified on the basis of NREL patented EVA formulations [1]. The new formulations can be cured to a desired gel content of {approx}80% in the ambient at temperatures 20-30 C lower than the typical conditions in vacuum (i.e. {approx}150 C). Glass/glass laminates showed transmittance spectra that are essentially the same as that of EVA 15295P in the visible and NIR regions but higher in the UV region. Results of fluorescence analysis of the ambient-processed new EVA formulations showed the concentrations of the curing-generated ... continued below

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4 pages

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Mei, Z.; Pern, F. J. & Glick, S. H. October 1, 2001.

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Description

Presented at the 2001 NCPV Program Review Meeting: We have developed several new ethylene-vinyl acetate (EVA) formulations modified on the basis of NREL patented EVA formulations [1]. The new formulations can be cured to a desired gel content of {approx}80% in the ambient at temperatures 20-30 C lower than the typical conditions in vacuum (i.e. {approx}150 C). Glass/glass laminates showed transmittance spectra that are essentially the same as that of EVA 15295P in the visible and NIR regions but higher in the UV region. Results of fluorescence analysis of the ambient-processed new EVA formulations showed the concentrations of the curing-generated {alpha},{beta}-unsaturated carbonyl chromophores, which are responsible for the UV induced EVA discoloration and photodegradation, were considerably lower than that of EVA 15295P, therefore suggesting a better photochemical stability of new EVA formulations.

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4 pages

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  • Presented at the NCPV Program Review Meeting, Lakewood, CO (US), 10/14/2001--10/17/2001

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  • Report No.: NREL/CP-520-31027
  • Grant Number: AC36-99-GO10337
  • Office of Scientific & Technical Information Report Number: 15000040
  • Archival Resource Key: ark:/67531/metadc1394793

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  • October 1, 2001

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  • Jan. 12, 2019, 4:41 p.m.

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  • Feb. 1, 2019, 2:24 p.m.

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Mei, Z.; Pern, F. J. & Glick, S. H. Modified EVA Encapsulant Formulations for Low Temperature Processing: Preprint, article, October 1, 2001; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1394793/: accessed March 18, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.