Study of Paperboard Material Layered with Plasticized Polyhydroxybutyrate/Nanocellulose Coatings for Packaging Application.

DEBORA PUGLIA, ; FRANCESCA LUZI; IRENE T. SEOANE; VIVIANA P. CYRAS; LILIANA B. MANFREDI; TORRE, LUIGI

Ischia

Conferencia; 9th International Conference on ?Times of Polymers and Composites? AIP Conference Proceedings; 2018

The effect of polyhydroxybutyrate (PHB)-based coatings combined with a plasticizer (Tributyrin, TB), andcellulose nanocrystals (CNC) in a bilayer configuration with paperboard was investigated. PHB/paperboard compositeformulations were processed by compression molding, using 15wt% of PHB with respect of paperboard. The presence ofTB and CNC in the coating system favored both the interaction between layers and the enhancement of tensile propertiesfor PHB/paperboard composites. In addition, the presence CNC in the PHB-based layer improved the water vaporpermeability of bilayer composites. Disintegration in composting condition of PHB/paperboard composites was carriedout according to the standard ISO 20200. The test permitted to demonstrate that all the studied samples disintegratedcompletely in less than 49 days of incubation.