Desarrollo y caracterización de compuestos biodegradables basados en polihidroxialcanoatos y fibras lignocelulósicas para aplicaciones de un solo uso
- Sánchez Safont, Estefanía Lidón
- Luis Cabedo Mas Director
- José Gámez Pérez Co-director
Defence university: Universitat Jaume I
Fecha de defensa: 08 March 2019
- Amparo Chiralt Boix Chair
- María Luisa Cerrada García Secretary
- Arantxa Eceiza Mendiguren Committee member
Type: Thesis
Abstract
This thesis has focused on the development and characterization of composites based on polyhydroxyalkanoates (PHA) and lignocellulosic fibers with the aim of obtaining reduced cost compostable materials for short shelf life applications such as packaging or single use products (cutlery, straws, etc.). Composites have been obtained using polyhydroxybutyrate (PHB) or poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) as the base materials and lignocellulosic fibers as fillers. The fibers used have been both commercial (TC90) and obtained from vegetal wastes (AS,RH and SG). The addition of an elastomeric phase as an impact modifier (TPU) has been studied in order to improve the toughness of the PHBV/TC90 systems. The efficiency of different reactive agents as compatibilizers in the double (PHA / fiber) and triple systems(PHBV / TPU / TC90) has been also evaluated.