Fracture Toughness of Vapor Grown Carbon Nanofiber-Reinforced Polyethylene Composites

Autor:	T. W. Petty, C. Guerrero, Ananta Raj Adhikari, E. Partida, R. Jones, Karen Lozano
Rok vydání:	2009
Předmět:	Materials science Article Subject Carbon nanofiber Composite number Polyethylene Shear (sheet metal) chemistry.chemical_compound Fracture toughness chemistry lcsh:Technology (General) Fracture (geology) lcsh:T1-995 General Materials Science Extrusion Fiber Composite material
Zdroj:	Journal of Nanomaterials, Vol 2009 (2009)
ISSN:	1687-4129 1687-4110
Popis:	The impact fracture behavior of a vapor grown carbon nanofiber (VGCNF) reinforced high-density polyethylene (PE) composite was evaluated. The samples consisting of pure PE and composites with 10 wt% and 20 wt% of VGCNFs were prepared by a combination of hot-pressing and extrusion methods. Extrusion was used to produce samples with substantially different shear histories. The fracture behavior of these samples was analyzed using the essential work of fracture (EWF) approach. The results showed an increase of 292% in the essential work of fracture for the loading of 10 wt%. Further increasing fiber loading to 20 wt% caused the essential work of fracture to increase only 193% with respect to the unmodified material. Evaluation of the fracture surface morphology indicated that the fibril frequency and microvoid size within the various fiber loadings depended strongly on processing conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c37f63313d57adf5c0d172b58ed2ae26 https://doi.org/10.1155/2009/101870 Zobrazit plný text záznamu Plný text ve formátu PDF