Green Bionanocomposites Based on Polyhydroxybutyrate and Filled with Cellulose Nanocrystals: Melting Processing and Characterization

Abstract This article contributes to the understanding of biobased and biodegradable polyhydroxybutyrate (PHB) bionanocomposites melt processed by pre-industrial methods such as extrusion injection molding reinforced weight contents 1 3 wt% cellulose nanocrystals (CNC) derived from waste streams paper industry. Ultrasonic treatment was used for dispersion CNC, which followed transmission electron microscopy. The thermal properties crystallization behavior were studied thermogravimetric analysis, differential scanning X-ray diffraction polarized optical Investigations on bending carried out in conjunction with analysis their dynamic mechanical behavior. Scanning microscopy characterize fracture surface. All these analyses give a deep insight into structure-property relationship. moisture absorption measurements gas barrier made have provided an under environmental conditions. PHB low content CNC found best quality, had positive effect almost all properties. increase crystallinity incorporation also contributed improvement In addition, show slightly lower tendency absorb better oxygen water vapor. These findings showed that are suitable use packaging Graphical