Mechanical response of multi-layer bacterial cellulose nanopaper reinforced polylactide laminated composites. (April 2018)

• Record Type: Journal Article
• Authors: Hervy, Martin; Blaker, Jonny J.; Braz, Ana Letícia; Lee, Koon-Yang
• Is Part Of: Composites. Volume 107(2018)
• Page Start: 155
• Page End: 163
• Publication Date: 2018-04
• Subjects: A. Cellulose -- A. Laminates -- A. Nanocomposites -- B. Defects; Composite materials -- Periodicals; Manufacturing processes -- Periodicals; Composite materials; Manufacturing processes; Periodicals; 620.11805
• DOI: 10.1016/j.compositesa.2017.12.025
• Languages: English
• ISSNs: 1359-835X

Abstract

Abstract: In this study, we investigated the mechanical response of polylactide (PLLA) reinforced with multiple layers of BC nanopaper. Laminated composites consisting of 1, 3, 6 and 12 sheet(s) of BC nanopaper were produced. It was observed that increasing the number of BC nanopaper led to an increase in the porosity of the resulting BC nanopaper-reinforced PLLA laminated composites. The tensile moduli of the laminated composites were found to be ∼12.5 – 13.5 GPa, insensitive to the number of sheets of BC nanopaper in the composites. However, the tensile strength of the laminated composites decreased by 21% (from 121 MPa to 95 MPa) when the number of reinforcing BC nanopaper sheets increased from 1 to 12 sheets. This was attributed to the presence and severity of the scale-induced defects increased with increasing BC nanopaper sheets in the PLLA laminated composites.