INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Development and characterization of hemp based bioresins and biocomposites
Autor/es:
GASTON FRANCUCCI; NATHAN W. MANTHEY; FRANCISCO CARDONA
Lugar:
Buenos Aires
Reunión:
Simposio; Simposio Argentino de Polimeros (SAP); 2013
Resumen:
Novel biocomposites made of an acrylated epoxidized hemp oil (AEHO) based bioresin reinforced with random hemp fiber mat were manufactured by the vacuum infusion (VI) technique. Mechanical properties (tensile, flexural, Charpy impact and interlaminar shear), dynamic mechanical properties (glass transition temperature, storage modulus and crosslink density) and moisture absorption properties (saturation moisture level and diffusion coefficient) were investigated and compared with samples manufactured under the same conditions but using a commercial synthetic vinylester (VE) resin as the polymeric matrix. Results showed that the 100% biocomposites mechanical performance is comparable to that of the hybrid composites made with the synthetic resin. Moisture absorption tests showed that AEHO based samples displayed both higher diffusion coefficient and saturation moisture content however fiber reinforcement was the dominant transfer mechanism. VE based samples were found to have higher storage modulus, glass transition temperature and crosslink density than AEHO samples.