EFFECT OF ENB AND VA CONTENT ON THE RHEOLOGY AND EXTRUDATE MORPHOLOGYOF EPDM AND EVA BLENDS

Authors
GHOSH MK DAS CK
Citation
Mk. Ghosh et Ck. Das, EFFECT OF ENB AND VA CONTENT ON THE RHEOLOGY AND EXTRUDATE MORPHOLOGYOF EPDM AND EVA BLENDS, Journal of polymer engineering, 13(4), 1994, pp. 333-344
Citations number
11
Journal title
Journal of polymer engineering → ACNP
ISSN journal
03346447
Volume
13
Issue
4
Year of publication
1994
Pages
333 - 344
Database
ISI
SICI code
0334-6447(1994)13:4<333:EOEAVC>2.0.ZU;2-P
Abstract
Flow behaviour of melt mixed blends of EPDM and EVA are studied to elu cidate the effect of ENB and VA content. Viscosity and extrudate swell ing have been studied as a function of shear rate and blend ratio. Hig h-ENB-content EPDM shows more pseudoplastic behaviour. Stored elastic energy increases as the EPDM/EVA ratio decreases, particularly for low -ENB-content EPDM. Extrudate surface irregularities are more frequent in low-ENB-content EPDM with low-VA-content EVA in the blends due to n on-uniformity of the blends.