Görüntüleme
16
Bovine and fish gelatin films were prepared by thermo-compression molding technique. Effects of glycerol levels (15-35%) and resin pre-heating conditions including pre-heating temperatures (120, 140 and 160 °C) and times (5 and 10 min) on film properties were investigated. Tensile strength (TS), elastic modulus (EM) and yellowness of films decreased but elongation at break (EAB), water-vapor permeability (WVP) and transparency increased with increasing glycerol level. Gelatin films had generally decreased TS, EM, WVP and transparency, whilst increased yellowness as pre-heating temperature and time increased. Therefore, glycerol level and condition used for resin pre-heating directly influenced the film properties.
Alan : Fen Bilimleri ve Matematik; Mühendislik
Dergi Türü : Uluslararası
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