Composites Made from a Soybean Oil Biopolyurethane and Cellulose Nanocrystals

Polymer Engineering and Science 2017
Veronica Lujan Mucci, Aiga Ivdre, Juan M. Buffa, Ugis Cabulis, Pablo Marcelo Stefani, Mirta Ines Aranguren

Cellulose nanocrystals (CNC) obtained by acidic hydrolysis from microcrystalline cellulose were dispersed in a biopolyurethane matrix to prepare composite films. The polyurethane was prepared from a hydroxylated soybean oil (SO-OH) and a polymeric diphenyldiisocyanate (pMDI), using a organotin compound as the catalyst. The composite films contained different concentrations of nanocelullose, without any macroscopic aggregates in all cases. Thermal, tensile and dynamic mechanical properties of the films were determined for all the samples. In particular, it was observed that the glass transition temperature of the nanocomposites slightly increased with the concentration of the cellulose nanocrystals. The nanocomposite with 1 wt% of nanocellulose showed the highest tensile strength of the series.

Keywords
Cellulose Cellulose derivatives Cellulose films Composite films Glass transition Nanocomposites Nanocrystals Organometallics Soybean oil Tensile strength
DOI
10.1002/pen.24539

Mucci, V., Ivdre, A., Buffa, J., Cabulis, U., Stefani, P., Aranguren, M. Composites Made from a Soybean Oil Biopolyurethane and Cellulose Nanocrystals. Polymer Engineering and Science, 2017, In Press, pp.1-8. ISSN 0032-3888. Available from: doi:10.1002/pen.24539

Publication language
English (en)