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Effect of mode of filler addition on the dynamic mechanical properties of epoxidized natural rubber‐ cis ‐1,4‐polybutadiene rubber blend
Author(s) -
Varughese Susy,
Tripathy D. K.
Publication year - 1993
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1993.070490618
Subject(s) - polybutadiene , natural rubber , vulcanization , filler (materials) , materials science , compounding , composite material , dynamic mechanical analysis , carbon black , viscosity , mooney viscosity , elastomer , rheometry , dynamic modulus , modulus , rheology , polymer , copolymer
The effect of different modes of filler addition on dynamic mechanical properties of 50/50 blends of epoxidized natural rubber (ENR) and cis ‐1,4‐polybutadiene rubber (BR) has been studied. The present study is confined to the systems that have fillers alone to reduce complexities due to the presence of other compounding ingredients and vulcanization. The effects of both carbon black and silica filler have been investigated. The mode of filler addition was found to have a profound influence on the loss tangent (tan δ) peak height, its spread, and the storage modulus, E′ value. The tendency of the filler to adhere predominantly to one of the phases depends on the mode of filler addition and the processing history rather than the individual component polarity or viscosity. © 1993 John Wiley & Sons, Inc.