Polymer00033 - torque and non-isothermal vulcanization...

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22 CHAPTER 2 CURING KINETICS AND PROPERITES OF FLUOROELASTOMER NANOCOMPOSITES 2.1 Abstract Fluoroelastomer (FKM) nanocomposites were prepared by melt mixing in a Haake rheometer and then the post cure and preparation of the test samples were carried out using compression molding. Five types of different nanofillers, i.e., surfactant treated clay (S-clay), fluoro-surfactant treated clay (FS-clay), untreated silica (U-SiO 2 ), treated silica (T-SiO 2 ), treated graphite (T-G) were used. Effects of these nanofillers on fluoroelastomer vulcanization, mechanical and dynamic properties, and thermal stability were studied. Vulcanization behavior of the fluoroelastomer was characterized by mixing
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Unformatted text preview: torque and non-isothermal vulcanization kinetics. Tensile tests were performed on the compressed composite sheets to evaluate their mechanical properties. Glass transition and viscoelastic behavior of the nanocomposites were characterized by dynamic mechanical analysis (DMA). Thermal stability of the nanocomposites was evaluated by thermal gravimetric analysis (TGA). It was found that the tested nanofillers had significantly different effects on the vulcanization of the fluoroelastomer, which in turn led to different mechanical, thermal dynamic, and thermal stability properties....
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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.

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