Flexible and Tough Poly(lactic acid) Films for Packaging Applications: Property and Processability Improvement by Effective Reactive Blending
Wannee Chinsirikul, Jareenuch Rojsatean, Bongkot Hararak, Noppadon Kerddonfag, Ajcharaporn Aontee, Kanisorn Jaieau, Pramote Kumsang and Chao Sripethdee
Article first published online: 13 JUN 2015 | DOI: 10.1002/pts.2141
Highly flexible PLA film was successfully produced by integrating effective reactive blending and economical film blowing process. Ductile PLA film having high elongation at break of ~250% and toughness of ~100 MPa was obtained by incorporating PBAT of 20 wt% via reactive blending with a small amount of chain extender (ESA) of only 1%. Films of PLA/PBAT/1%ESA exhibit potential as packaging material; their mechanical and optical properties are comparable with or even exceed some existing films used in the market.