Assessment of the cross-linking degree of EVA PV encapsulants

摘要

This paper presents a comparison of different characterization methods used for determining the relative degree of cross-linking of samples of PV-type EVA films, obtained under three different process conditions in a vacuum PV laminator. The methods investigated are gel content measurements, rheological measurements and differential scanning calorimetry (DSC). For the latter, two distinct procedures are employed - the residual enthalpy method and the melt/freeze method.