EFFECT OF HEXADIENE AND VINYL-ACETATE ON THE FLOW BEHAVIOR OF EPDM AND EVA BLENDS

Authors
GHOSH MK DAS CK SHINGANKULI VL
Citation
Mk. Ghosh et al., EFFECT OF HEXADIENE AND VINYL-ACETATE ON THE FLOW BEHAVIOR OF EPDM AND EVA BLENDS, International journal of polymeric materials, 23(1-2), 1993, pp. 27-35
Citations number
13
Categorie Soggetti
Polymer Sciences","Engineering, Chemical
Journal title
International journal of polymeric materials → ACNP
ISSN journal
00914037
Volume
23
Issue
1-2
Year of publication
1993
Pages
27 - 35
Database
ISI
SICI code
0091-4037(1993)23:1-2<27:EOHAVO>2.0.ZU;2-U
Abstract
Flow behaviour of melt-mixed blends of EPDM and EVA with special refer ence to the change of their HD and VA content are studied. Viscosity d ecreases linearly with the increase in shear rate for all the blends w hich is more prominent in case of low VA content EVA. Low HD shows mor e pseudoplastic behavior. Stored elastic energy increases as the EPDM/ EVA ratio decreases. Relaxation time increases for high HD and VA cont ent. Circumferential wrinkles on the extrudate surface with surface fr actures was observed at high shear rate for high HD containing EPDM.