Identifying the manufacturing process of PVC films by nondestructive morphological analyses - Gavim, Anderson Emanuel Ximim; Mascarenhas, Ricardo de Oliveira; Sbrissia, Layra Selzler; Barbosas Júnior, Juscelino Valter; Casagrande, Tainã Reges; Macedo, Andreia Gerniski (Materials Letters, 2023)