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Unformatted text preview: oxidation and thermal expansion of graphite. We followed this oxidation and expansion method and the following steps were used to process graphite flake to produce treated graphite (T-G) (McAllister, et al. 2007) 1. prepare sulfuric acid (98.0%) and nitric acid (63.0%) mixture (4:1 v/v), 2. add graphite flake into the mixture and stirred the suspension continuously for 16 hours at room temperature, 4. wash the sample with distilled water until neutralization was reached, 5. dry the sample at 100 o C in a convection oven, 6. heat the dried sample at 1050 o C for 45s for fast expansion. The obtained TG was used to prepare fluoroelastomer nanocomposites. 2.3.3 Study of Vulcanization by Torque Rheometry and DSC...
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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 Penn State.
- Spring '08