Study of paperboard material layered with plasticized polyhydroxybutyrate/ nanocellulose coatings for packaging application

SEOANE, IRENE TERESITA; TORRE, LUIGI; LUZI, FRANCESCA; MANFREDI, LILIANA BEATRIZ; PUGLIA, DEBORA; CYRAS, VIVIANA PAOLA

Ischia

Conferencia; 9TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS AND COMPOSITES: From Aerospace to Nanotechnology; 2018

University of Naples Federico II, Department of Chemical, Materials and Production Engineering - Università degli Studi della Campania Luigi Vanvitelli - Department of Industrial and Information Engineering

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