On-line, in-line and off-line rheometry of polyethylenes

被引：0

作者：

Kelly, AL ^{[1
]}

Woodhead, M ^{[1
]}

Rose, RM ^{[1
]}

Coates, PD ^{[1
]}

机构：

[1] Univ Bradford, IRC Polymer Sci & Technol Mech & Mfg Engn, Bradford BD7 1DP, W Yorkshire, England

来源：

ANTEC '99: PLASTICS BRIDGING THE MILLENNIA, CONFERENCE PROCEEDINGS, VOLS I-III: VOL I: PROCESSING; VOL II: MATERIALS; VOL III: SPECIAL AREAS; | 1999年

关键词：

rheometers; in-process rheometry; shear flow; extensional viscosity;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In-process rheometry (on-line & in-line) carried out during twin screw extrusion of several polyethylenes (LDPE, LLDPE and three HDPEs) is compared with conventional off-line rheometry for both shear and extensional properties. Use of two on-line and two off-line rheometers allowed comparison of data from a range of commercial instruments in order to validate their performances. In-process shear flow rheometry was undertaken using a six-sensor in-line extrusion die rheometer on a twin screw extruder. Results from the five rheometers were compared and good agreement observed between the different routes to measurement, for these relatively stable materials.

引用

页码：1979 / 1983

页数：5

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