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Unformatted text preview: properties compared to UT-SiO 2 reinforced ones due to the formers higher compatibility and stronger promotion on the vulcanization. Indeed, T-SiO 2 reinforced nanocomposites displayed the highest strength and modulus among all the formulations. The chemical bonding between the T-SiO 2 and the fluoroelastomer facilitated T-SiO 2 dispersion and increased interfacial bonding between the two phases. Moreover, the addition of T-SiO 2 promoted elastomer vulcanization and increased crosslink density. These two factors contributed to the composites exceptional mechanical properties. T-G also markedly increased the tensile strength and modulus of the elastomer (Figure 2.6). Further increasing T-G content from 2 to 4% only slightly improved the properties, which may be due to particle aggregation at high T-G content. All the tensile properties of each formulation were listed in Table 3....
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This note was uploaded on 08/18/2011 for the course MATSE 447 taught by Professor Colby,r during the Spring '08 term at Pennsylvania State University, University Park.
- Spring '08