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Characterization of the vibrational damping loss factor and viscoelastic properties of ethylene–propylene rubbers reinforced with micro‐scale fillers
Author(s) -
Kwak G. H.,
Inoue K.,
Tominaga Y.,
Asai S.,
Sumita M.
Publication year - 2001
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.2161
Subject(s) - loss factor , viscoelasticity , materials science , dynamic modulus , dynamic mechanical analysis , composite material , ethylene propylene rubber , thermoelastic damping , microscale chemistry , relaxation (psychology) , damping factor , polymer , thermodynamics , thermal , dielectric , copolymer , physics , psychology , social psychology , mathematics education , optoelectronics , mathematics , electrical impedance , quantum mechanics , impedance matching
Abstract The influence of microscale fillers on ethylene–propylene rubbers (EPR) was examined with respect to their vibrational damping capacity and viscoelastic properties. The vibrational damping and dynamic mechanical properties of reinforced EPR were studied in systematic and comparative ways that reinforced the evidence of a direct relation between the vibrational damping loss factor and its mechanical damping loss factor. In this study, the sensitivity of the vibrational damping loss factor of reinforced EPR was quantified with respect to the variation in thickness, filler type, and filler content. Dynamic mechanical relaxation behaviors were also analyzed. The viscoelastic properties in terms of the storage modulus, loss modulus, mechanical damping loss factor, and frequency dependence of molecular relaxation showed interesting results with the filler types and compositions that had good correspondence with the vibrational damping behaviors. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3058–3066, 2001