Premium
Structure and properties of star‐shaped solution‐polymerized styrene‐butadiene rubber and its co‐coagulated rubber filled with silica/carbon black‐I: morphological structure and mechanical properties
Author(s) -
Liu Xiao,
Zhao Suhe,
Yang Yong,
Zhang Xingying,
Wu Youping
Publication year - 2009
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1324
Subject(s) - materials science , natural rubber , carbon black , composite material , styrene butadiene , dispersion (optics) , filler (materials) , mooney viscosity , abrasion (mechanical) , glass transition , nanocomposite , polymerization , vulcanization , styrene , copolymer , polymer , physics , optics
The morphological structure and mechanical properties of the star‐shaped solution‐polymerized styrene‐butadiene rubber (SSBR) and organically modified nanosilica powder/star‐shaped SSBR co‐coagulated rubber (N‐SSBR) both filled with silica/carbon black (CB) were studied. The results showed that, compared with SSBR, silica powder could be mixed into N‐SSBR much more rapidly, and N‐SSBR/SiO 2 nanocomposite had better filler‐dispersion and processability. N‐SSBR/SiO 2 /CB vulcanizates displayed higher glass‐transition temperature and lower peak value of internal friction loss than SSBR/SiO 2 /CB vulcanizates. In the N‐SSBR/SiO 2 /CB vulcanizates, filler was dispersed in nano‐scale resulting in good mechanical properties. Composites filled with silica/CB doped filler exhibited more excellent mechanical properties than those filled with a single filler because of the better filler‐dispersion and stronger interfacial interaction with macromolecular chains. N‐SSBR/SiO 2 /CB vulcanizates exhibited preferable performance in abrasion resistance and higher bound rubber content as the blending ratio of silica to CB was 20:30. Copyright © 2008 John Wiley & Sons, Ltd.