Abstract
The ethylene vinyl acetate (EVA) is widely used for solar modules encapsulation. During lamination process EVA melts and
chemical bonds between polymer chains are created. Its number is tightly related to cross-linking degree and it is consider as a major
quality reference for module encapsulation. The lamination can be described as a process with two stages: melting and curing
where the typical temperature for curing is in the range from 145 to 175°C. In the present study, for the first time, comparison of
three commercial available EVA foils with low curing temperature EVA (EVA LOW). For this reason, the temperature of following
lamination processes was set from a range from 115 to 175°C. The behavior of cured EVA films under investigation EVA was
determined with two approaches: with extraction and with optical methods. The results indicate the applicability of these methods
for the EVA cross-linking characterization. Finally, the extraordinary behavior of EVA LOW foil was noticed.
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