NANOCOMPOSITES OF WATERBORNE POLYURETHANE REINFORCED WITH CELLULOSE NANOCRYSTALS FROM SISAL FIBRES

G. MONDRAGON ; M.E.V. HORMAIZTEGUI; V. MUCCI; M. I. ARANGUREN; A. ARBELAIZ; A. ECEIZA

Buenos Aires

Workshop; II Workshop on Bio-degradable Polymers and Biocomposites III Workshop BIOPURFIL, Bio-based Polyurethane Composites with Natural Fillers; 2015

ITPN, INTEMA

Theenvironmental concern for reducing petroleum dependence has promoted the use ofrenewable polymers. In relation with this and to avert the use of organicsolvents, waterborne polyurethanes (WBPU) synthesized from several biobased diolsare gaining interest during last years. Moreover, waterborne systems facilitatethe incorporation of water dispersible reinforcements such as cellulosenanocrystals (CNC), which have focused attention due to high aspect ratio andexceptional mechanical properties. The aim of this work is to preparenanocomposites based on WBPU reinforced with different contents of CNC isolatedfrom sisal fibres.