RHEOLOGICAL PROPERTIES OF POLYPROPYLENE HIGH-DENSITY POLYETHYLENE BLEND MELTS .2. DYNAMIC VISCOELASTIC PROPERTIES

被引：21

作者：

FUJIYAMA, M ^{[1
]}

KAWASAKI, Y ^{[1
]}

机构：

[1] TOKUYAMA SODA CO LTD,DIV RESINS,QUAL CONTROL SECT,TOKUYAMA,YAMAGUCHI 745,JAPAN

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 02期

关键词：

D O I：

10.1002/app.1991.070420220

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Three kinds of isotactic polypropylenes with different MFI were melt-blended with three kinds of high-density polyethylenes with different MFI using a screw extruder and the dynamic viscoelastic properties were studied. The storage moduli G'(omega) of the blends showed second plateaus and the dynamic viscosities eta'(omega) of the blends showed two-step drops with increasing angular frequency-omega. Such phenomenon was particularly notable for blend systems in which particles of lower viscosity were suspended in the disperse medium of higher viscosity and is considered to be the cause of abnormally large die swell.

引用

页码：481 / 488

页数：8

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