Environmentally degradable plastics: thermal behavior of polymer blends based on waste gelatin
Polimery 2002, No 7/8, 500
Blends, based on waste gelatin (WG) and poly(vinyl alcohol) (PVA), formulated for agroindustrial applications are currently under investigation. In the present contribution their characterization by thermogravimetry (TG) and differential scanning calorimetry (DSC) is reported. The results obtained are compared with those of analogous blends based on „virgin” gelatin (VG). Whereas these last tended to phase segregate, those based on WG resulted compatible due to the presence of glycerol in WG and its inherent destructurization caused by former thermal and mechanical treatment.
Keywords: Environmentally biodegradable plastics, gelatin, poly(vinyl alcohol), thermal analysis, mulching films, hybrid blends plastic waste