Influence of the notch sharpening on the impact fracture toughness of ethylene-propylene block copolymers

All of RECERCAT

To access the full text documents, please follow this link: http://hdl.handle.net/2117/23026

Title:	Influence of the notch sharpening on the impact fracture toughness of ethylene-propylene block copolymers
Author:	Martínez Benasat, Antonio; Arencón Osuna, David; Rodríguez Pérez, Jesús; Salazar López, Alicia
Other authors:	Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia
Abstract:	The impact fracture toughness of several ethylene-propylene block copolymers has been evaluated using the traditional contact notch sharpening technique of tapping and a new non-contact technique based on femtolaser ablation. The fracture toughness values obtained with the specimens notched by the femtolaser ablation technique were always lower than the tapped specimens. The impact fracture toughness values of these block copolymers does not depend only on the ethylene content, but also the molecular weight has a remarkable influence. © 2014 Elsevier Ltd. All rights reserved.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria química -Copolymers -Ethylene -Propene -Femtolaser -Fracture toughness -Notch sharpening -Copolímers -Etilè -Propilè
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Published version Article
Share: