The effect of molecular structure on the extensional melt rheology of conventional and metallocene polyethylenes

被引：0
|
作者：
Chai, CK [1 ]
机构：
[1] BP Amoco Chem, Res & Technol Ctr, F-13117 Lavera, France
来源：
ANTEC 2000: SOCIETY OF PLASTICS ENGINEERS TECHNICAL PAPERS, CONFERENCE PROCEEDINGS, VOLS I-III | 2000年
关键词：
extensional viscosity; long chain branching; metallocene; polyethylene;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Extensional melt rheology and processing characteristics of conventional high pressure low density polyethylene (LDPE) and Ziegler-Natta linear low density polyethylenes (LLDPE) are compared with both narrow and broad molecular weight distribution (MWD), long chain branched (LCB) metallocene polyethylenes. The effects of MWD and LCB on the melt behaviour of these different types of polymers will be presented in terms of their dynamic linear viscosities and their strain-hardening behaviour from transient tensile stress growth experiments. Film processability properties will also be discussed.
引用
收藏
页码：1096 / 1100
页数：5
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