Rapid crack propagation failures in HDPE pipes: Structure–property investigations

Autor:	Pamela L. Maeger, Patrick S. Leevers, Mark J. Lamborn, Rajendra K. Krishnaswamy, Ashish M. Sukhadia, D.F. Register
Rok vydání:	2006
Předmět:	Materials science Polymers and Plastics Canalisation Transition temperature Charpy impact test Fracture mechanics Izod impact strength test General Chemistry Polyethylene chemistry.chemical_compound Crystallinity chemistry Materials Chemistry High-density polyethylene Composite material
Zdroj:	Polymer Engineering & Science. 46:1358-1362
ISSN:	1548-2634 0032-3888
DOI:	10.1002/pen.20582
Popis:	The influence of molecular architecture on the rapid crack propagation (RCP) resistance of a wide variety of high-density polyethylene pipes was investigated. It was concluded that high molecular weight, high crystallinity and a relatively narrow molecular weight distribution are important architectural attributes for RCP resistance. The ductile-brittle transition temperature, as measured on compression-molded specimens using the razor-notched Charpy impact test, appears to be a reasonably good indicator of the RCP resistance of the resultant pipes. POLYM. ENG. SCI., 46:1358–1362, 2006. © 2006 Society of Plastics Engineers
Databáze:	OpenAIRE
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