Premium
Ethylene–propylene–rubber (EPR)/polydimethylsiloxane (PDMS) binary polymer blends: Morphology and viscoelastic properties
Author(s) -
Carlberg M.,
Colombini D.,
Maurer F. H. J.
Publication year - 2004
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.21171
Subject(s) - polydimethylsiloxane , materials science , ethylene propylene rubber , polymer blend , differential scanning calorimetry , viscoelasticity , composite material , scanning electron microscope , dynamic mechanical analysis , morphology (biology) , elastomer , polymer , natural rubber , copolymer , physics , genetics , biology , thermodynamics
Abstract Melt mixed blends of ethylene–propylene–rubber (EPR) and polydimethylsiloxane (PDMS) were studied with regard to the composition dependence of the dynamic viscoelastic properties in relation to their morphology. Differential scanning calorimetry, scanning electron microscopy, and dynamic mechanical analysis (DMA) were used together with theoretical predictions to characterize the blends. The investigation of the viscoelastic properties showed significant improvement of the mechanical properties of the blends following the increase of the EPR content. The association of DMA results and theoretical predictions indicated that the studied blends consisted of dispersed PDMS in a matrix of EPR over the whole composition range. The microscopy study of the blends also supports these morphological conclusions. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 2240–2249, 2004