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Unformatted text preview: FC 2260 and FC 2260/2% T-SiO 2 . The highest modulus for FC 2260/ 2% T-SiO 2 was the result of T-SiO 2 s crosslinking effect. Figure 2.4c compares the modulus of the FC 2260 nanocomposites containing 4% nanofillers. The highest modulus for 2% nanofiller content, e.g. the modulus of FC 2260/ 2% T-SiO 2 , was also drawn for comparison. This figure shows that higher nanofiller content led to higher composite modulus. The modulus of FC 2260/ 2% T-SiO 2 was almost the lowest one in Figure 2.4c. However, FC 2260/ 4% T-SiO 2 still exhibited the highest modulus, especially after the glass transition of the elastomer when the modulus of the samples is crucially determined by the crosslink density. For the same reason, T-G filled FC 2260 nanocomposites exhibited the lowest storage modulus (Figure 2.4b and c) above elastomer T g , due to the hindrance of T-G to the elastomer vulcanization....
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- Spring '08