Engineering the Fiber-Matrix Interface in Carbon Nanotube Composites
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| Contributor(s) | Sharon K. Pregler University of Florida Yanhong Hu North Carolina State University Susan Sinnott University of Florida |
|---|---|
| Abstract | Particle depositions on polymer and carbon substrates to induce surface chemical modification are a growing research topic in particle-surface interactions due to localized deposition energy and the high density of molecules impacting the surface. Previous simulations have shown that particle beam deposition can induce crosslinking between unfunctionalized carbon nanotubes and polymer chains resulting in increased mechanical strength and improvements of thin-film growth of the composite. Simulating irradiation can determine if the numbers of crosslinking and/or functionalized groups are increased in a polymer-carbon nanotube composite. These simulations include the irradiation of fluorocarbon particles and Ar on polymer-carbon nanotube composite substrates. Molecular dynamic simulations are used to investigate the irradiation of multiwalled carbon nanotubes and carbon nanotube composites using reactive empirical bond-order (REBO) potential for hydrocarbons and fluorocarbons to calculate the forces between the atoms at equilibrium. Variables include particle type and composite structure. This study will determine if a substrate subjected to irradiation can affect the shear modulus, tensile modulus, and other mechanical properties of the material. |
| Credits | Supported by the National Science Foundation (CHE-0200838) |
| Cite this work | If you reference this work in a publication, please cite as follows: |
| Date posted | 23 Mar, 2006 |
| Time | March 06, 2006 |
| Type | Online Presentations |
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