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Composites of Single wall Carbon nanotubes and Polymer latice of Styrene

Review Paper Presentation. Composites of Single wall Carbon nanotubes and Polymer latice of Styrene. By Israel Chavez Sumarriva. Fundamentals of Nanotechnology , Chem E 5480 December 1 st , 2007. Background and Introduction. http://www.nanotech-now.com/images.

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Composites of Single wall Carbon nanotubes and Polymer latice of Styrene

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  1. Review Paper Presentation Composites of Single wall Carbon nanotubes and Polymer latice of Styrene By Israel Chavez Sumarriva Fundamentals of Nanotechnology, Chem E 5480 December 1st, 2007

  2. Background and Introduction http://www.nanotech-now.com/images In 1991, Iijima discovered carbon nanotubes with the exceptional properties such as excellent mechanical strength and optical properties, high electrical and thermal conductivities. • Single Wall Carbon-Nanotubes • Reported results: Young’s modulus ~ 1000 GPa (100x Kevlar, tensile strength ~ 30 GPa (10x Kevlar) • Can be conductive or semiconductive • High thermal conductivity (10x copper) • - Disperse SWNTs in polymers using a dispersing agent

  3. Surfactants can disperse SWNTs in aqueous solution without forming chemical bonds with the tubes  not affect the tube properties. Emulsion Are systems in which liquid droplets (discontinuous phase) are dispersed in an immiscible liquid (continuous phase). However, for the system to be stable enough to be called an “emulsion” , the emulsifying agent, which usually is a surface active agent, must be present.

  4. Emulsion polymerization 100 – 500 nm > 500 nm Mini Macro Micro < 100 nm Common method to encapsulate inorganic particles

  5. Mixing dispersed components SWNT dispersed in surfactant Latex (product of macro or miniemulsion)

  6. Procedure of mixing method SWNTsSDBS solutionsonication Stir 20 min Latex (product of (mini)emulsion polymerization) Evaporate water Solid Soxhlet extraction of SDBS using propanol 120 h Sample Compression Molding

  7. Procedure of mixing method SWNTsSDBS solutionsonication Stir 20 min Latex (product of (mini)emulsion polymerization) Evaporate water Solid Soxhlet extraction of SDBS using propanol 120 h Sample Compression Molding

  8. Procedure of mixing method SWNTsSDBS solutionsonication Stir 20 min Latex (product of (mini)emulsion polymerization) Evaporate water Solid Soxhlet extraction of SDBS using propanol 120 h Sample Compression Molding

  9. Procedure of mixing method SWNTsSDBS solutionsonication Stir 20 min Latex (product of (mini)emulsion polymerization) Evaporate water Solid Soxhlet extraction of SDBS using propanol 120 h Sample Compression Molding

  10. Procedure of mixing method SWNTsSDBS solutionsonication Stir 20 min Latex (product of (mini)emulsion polymerization) Evaporate water Solid Soxhlet extraction of SDBS using propanol 120 h Sample Compression Molding

  11. Future Directions: Well. If we want to make this process as industrial scale, We need to change the extraction of SDBS by Soxhlet because soxhlet process is not practical a big scale with another process. I’m working using membranes instead of Soxhlet

  12. GRACIAS THANK YOU GRACIAS THANK YOU

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