Loading...

Synthesis and Application of Carbon Hollow Nanospheres Containing Active Film Forming Agents for Fabrication of Self-Healing Epoxy Resin

Haddadi, Arash | 2018

566 Viewed
  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 51534 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ramazani, Ahmad; Mahdavian, Mohammad; Taheri, Peyman; Mol, Arian
  7. Abstract:
  8. Nowadays, self-healing process, repairing minor damages automatically without the need for detection or any type of manual intervention, becomes a hot topic of general interest. In this research, the effect of addition of carbon nanocontainers doped with film forming epoxy and polyamine agents in various contents on the self-healing properties of epoxy resin was investigated. Carbon nanocontainers were synthesized via the silica templating method and carbonization of polysaccharide shells at the high temperature. Loading of the film forming agents into carbon nanocontainers was performed using vacuum jar method in the presence of epoxy/acetone and polyamine/acetone dilute solutions. Structure of the synthesized carbon nanocontainers was evaluated using FE-SEM, TEM, Raman spectroscopy, XRD and FT-IR analyses. Contents of epoxy and polyamine agents loaded into carbon nanocontainers studied by FT-IR, TGA and solvent extraction methods were about 39 and 44 %, respectively based on the weight of carbon nanocontainers. Self-healing and corrosion protection properties of epoxy coatings containing various contents of carbon nanocontainers were investigated using FE-SEM, salt spray, EIS and SVET analyses. Finally, the mechanical characterization of epoxy coatings in presence of carbon nanocontainers was studied by tensile test and scratch hardness measurements. Result illustrated that by applying scratch and fracture of carbon nanocontainers, release and curing of film forming agents occured in scratch leading to healing of the scratch applied on the coating. Moreover, addition of carbon nanocontainers in epoxy coatings enhanced remarkably their mechanical properties and strength of scratch hardness
  9. Keywords:
  10. Carbon Nanocontainers ; Film Forming Agents ; Epoxy Coating ; Self Healing Properties ; Silica-Templating Method ; Epoxy Resin

 Digital Object List

 Bookmark

No TOC