CNT Enhanced Polymers James Mejia MEEN 3344.

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Presentation transcript:

CNT Enhanced Polymers James Mejia MEEN 3344

What is a Carbon Nanotube? It is a hollow, cylindrical carbon molecule About a nanometer in diameter Are grown as Multi-walled, Single-walled, Double-walled and Fibers

How is it used? CNT must first be functionalized to be used a fillers This can done through chemical exfoliation and dispersion (ex: Zyvex’s Kentera ),also sonication It is then dispersed into the host polymer, such as Polyurethane, Teflon, paint, etc. Untreated multi-wall nanotubes vs. Zyvex functionalized nanotubes

“Bridge” Additive

Enhancement Properties Very high tensile strength High thermal conductivity High aspect ratio: lower wt% loading needed for enhancement Improved elasticity High electrical conductivity

Mechanical Properties

Host Polymers and Applications Polyurethane Teflon Silicones Epoxies Polyesters Nylon PVC PMMA Acrylates Sporting Goods Automotive Aerospace Military Body Armor Electronics Semi-Conductors Biomedical Paint

References www.zyvex.com www.nano-lab.com/imagegallery.html www.nanotechweb.org/articles/news/4/2/2/1 www.nanovip.com/forums www.4spe.org/htmlemail/techfocus/supportingdocs/0412newtechfocus.pdf www.eastonsports.com Yeh, Meng-Kao, Nyan-Hwa Tai, Jia-Hau Liu. “Mechanical Behavior of phenolic-based composites reinforced with mutli-walled carbon nanotubes.” www.sciencedirect.com carbon 44(2006): 1-9.