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Unformatted text preview: exhibited a significantly larger weight loss than the other nanofillers at low temperatures (i.e. below the elastomer degradation temperature). These two factors together resulted in decreased T 5% for the nanocomposites comprising FS-clay and S-clay. However, the influences of silica and graphite on the degradation temperature of the elastomer was opposite from that of the nanoclays. FC 2260/T-G, FC 2260/UT-SiO 2 and FC 2260/T-SiO 2 all exhibited different degrees of improvement in thermal stability compared with the neat FC 2260. The effect of treated graphite on improving thermal stability seemed very limited. The addition of 2% T-G only slightly increased T 5% of the elastomer (~ 2 C increase), and 4% T-G only resulted an increase of ~ 6 C in T 5% . In contrast, silica nanoparticles, particularly the treated silica, greatly improved the thermal stability of the elastomer. While the addition of the untreated silica at 2 and 4 % loading...
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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