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

被引：19
作者：
Krishnaswamy, R. K.
Lamborn, M. J.
Sukhadia, A. M.
Register, D. F.
Maeger, P. L.
Leevers, P. S.
机构：
[1] Chevron Phillips Chem Co LP, Bartlesville Technol Ctr, Bartlesville, OK 74006 USA
[2] Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England
来源：
POLYMER ENGINEERING AND SCIENCE | 2006年 / 46卷 / 10期
关键词：
D O I：
10.1002/pen.20582
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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.
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页码：1358 / 1362
页数：5
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