INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Fracture behaviour of PP/ash composites toughened with an olefin block copolymer
Autor/es:
S. GARCÍA PARDO, C. BERNAL, J. CANO, M.J. ABAD AND L. BARRAL LOSADA
Lugar:
San Sebastián, España
Reunión:
Conferencia; V International Conference on Science and Technology of Composites Materials. ISBN 978-84-692-5483-7; 2009
Institución organizadora:
Asociación Española de Materiales Compuestos
Resumen:
The use of fly ash fillers to improve fracture properties of polymer composites as well as to reduce costs and to obtain more environmentally friendly materials was considered in this work. The fracture and failure behaviour of composites based on polypropylene (PP), an olefin block copolymer and ash was studied. Ashes and fly ashes used as fillers are solid industrial wastes produced as the result of the wood industry combustion. During the processing, silane treated ashes with an olefin block copolymer (OBC) were included in a polypropylene matrix. The developed composites exhibited fracture energy values significantly higher than those of the matrix or similar composites without OBC. A fibrillised debonding process was found to be the main deformation mechanism which led to higher energy absorption in both crack initiation and propagation steps. Therefore, it seems to be responsible for the improved fracture behaviour observed in our composites.