TY - JOUR T1 - Flexural behavior of Sisal/Castor oil-Based Polyurethane and Sisal/Phenolic Composites JO - Materials Research A1 - Milanese, Andressa Cecília A1 - Cioffi, Maria Odila Hilário A1 - Voorwald, Herman Jacobus Cornelis SN - 1516-1439 UL - 10.1590/S1516-14392012005000019 VL - 15 Y1 - 2012 PB - Brasil ER -