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Effect of fillers on the rheological behavior of thermoplastic 1,2 polybutadiene rubber
Author(s) -
Bhagawan S. S.,
Tripathy D. K.,
De S. K.,
Sharma S. K.,
Ramamurthy K.
Publication year - 1988
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760281003
Subject(s) - materials science , polybutadiene , rheology , composite material , rheometer , carbon black , die swell , natural rubber , shear rate , viscosity , mooney viscosity , filler (materials) , thermoplastic , rheometry , extrusion , polymer , copolymer
The influence of fillers like clay, silica, and carbon black on the rheological properties of 1,2 polybutadiene has been studied using a capillary rheometer. Silica filled compound exhibited the highest viscosity and clay filled compound the lowest viscosity at all shear rates. The effect of filler loading and temperature on the Theological behavior has also been studied. Smooth extrudates were obtained in most of the cases and die swell was lower for silica and carbon black filled compounds than for clay filled compounds. Rheograms of different 1,2 polybutadiene systems have been found to merge into a master curve using modified viscosity and shear rate functions that contain melt flow index as a parameter.