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Dynamic mechanical properties of short carbon fiber‐filled styrene–isoprene–styrene block copolymer
Author(s) -
Roy D.,
Bhowmick A. K.,
De S. 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.1993.070490208
Subject(s) - materials science , composite material , isoprene , thermoplastic elastomer , copolymer , fiber , dynamic mechanical analysis , composite number , filler (materials) , styrene butadiene , ultimate tensile strength , styrene , elastomer , natural rubber , carbon black , polymer
The mechanical and dynamic mechanical properties of short carbon fiber‐filled styrene–isoprene–styrene (S–I–S) block thermoplastic elastomeric composite have been studied. Brabender mixing followed by milling of the fiber–rubber compositions caused about a 30‐fold decrease in the fiber aspect ratio and random fiber orientation. Although low‐strain moduli increased on fiber incorporation, tensile and tear properties dropped and anisotropy in mechanical properties was not observed. Tan δ values at the T g region decreased on filler incorporation, but at room temperature, the tan δ values increased with filler loading. The variation of storage moduli and tan δ values with frequency followed a pattern similar to the variation of these properties with filler incorporation. © 1993 John Wiley & Sons, Inc.