Positron annihilation spectroscopy in carbon black-silica-styrene butadiene rubber (SBR) composites under deformation
Mohsen, M.; Ashry, A.; Ismail, Ahmed; Ismail, H.; Abd-El Salam , Mokhtar;
Abstract
Positron annihilation lifetime (PAL) spectroscopy has been used to investigate microstructural properties of carbon black-silica-styrene butadiene rubber (SBR) composites. The positron annihilation lifetime shows a direct dependence on the carbon black type as well as the silica content added to the rubber compound. The effect of the tensile strain (ε=0-150%) on the positron annihilation parameters has been investigated by constructing a small load frame to permit the measurement of positron lifetime in situ. The variations in the o-Ps lifetime τ3 and its intensity I 3 with deformation are discussed in the framework of free volume theories. A simple illustrative sketch for the rubber-filler matrix is proposed. © 2005 Elsevier Ltd. All rights reserved.
Other data
| Title | Positron annihilation spectroscopy in carbon black-silica-styrene butadiene rubber (SBR) composites under deformation | Authors | Mohsen, M.; Ashry, A.; Ismail, Ahmed ; Ismail, H.; Abd-El Salam , Mokhtar | Issue Date | 2005 | Journal | Polymer Degradation and Stability | Volume | 87 | Issue | 3 | Start page | 381 | End page | 388 | DOI | 10.1016/j.polymdegradstab.2004.01.004 |
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