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Study on structure and properties of SSBR/SiO 2 co‐coagulated rubber and SSBR filled with nanosilica composites
Author(s) -
Liu Xiao,
Zhao Suhe
Publication year - 2008
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.28621
Subject(s) - materials science , nanocomposite , glass transition , composite material , composite number , natural rubber , dynamic mechanical analysis , dispersion (optics) , polymer , physics , optics
The morphological structure, glass transition, mechanical properties, and dynamic mechanical properties of star‐shaped solution‐polymerized styrene‐butadiene rubber (SSBR) synthesized by a multifunctional organic lithium initiator and SiO 2 ‐SSBR composite (N‐SSBR) prepared through adding a small amount of nanosilica modified by silane coupling agent to star‐shaped SSBR synthetic solution and co‐coagulating, and their nanocomposites filled with 20 phr nanosilica were investigated, respectively. The results showed that the silica particles were well dispersed with nanosize in N‐SSBR, which glass‐transition temperature ( T g ) was 2°C higher than SSBR. N‐SSBR/SiO 2 nanocomposite exhibited lower Payne effect and internal friction loss, higher mechanical properties, and its T g was 2°C higher than SSBR/SiO 2 nanocomposite. N‐SSBR might promote the dispersion of nanosilica powder in matrix and could be applied to green tire tread materials. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008