RHEOLOGICAL BEHAVIOR OF SHORT SISAL FIBER-REINFORCED NATURAL-RUBBER COMPOSITES

Authors
VARGHESE S KURIAKOSE B THOMAS S PREMALATHA CK KOSHY AT
Citation
S. Varghese et al., RHEOLOGICAL BEHAVIOR OF SHORT SISAL FIBER-REINFORCED NATURAL-RUBBER COMPOSITES, Plastics, rubber and composites processing and applications, 20(2), 1993, pp. 93-99
Citations number
23
Categorie Soggetti
Polymer Sciences","Material Science
Journal title
Plastics, rubber and composites processing and applications → ACNP
ISSN journal
09598111
Volume
20
Issue
2
Year of publication
1993
Pages
93 - 99
Database
ISI
SICI code
0959-8111(1993)20:2<93:RBOSSF>2.0.ZU;2-R
Abstract
The melt rheological behaviour of acetylated sisal fibre reinforced na tural rubber composites was studied using a capillary rheometer. The r esults illustrate the effects of fibre concentration and shear stress/ shear rate on melt viscosity and melt elasticity of the composites. Th e fibre undergoes severe breakdown during extrusion, and as the shear rate increased the breakdown also increased. The melt showed pseudopla sticity which increased with fibre loading. Incorporation of acetylate d sisal fibre into natural rubber results in an increase in its melt v iscosity and a decrease in its melt elasticity.