• Media type: E-Article
  • Title: Carbon nanoparticles’ impact on processability and physical properties of epoxy resins : a comprehensive study covering rheological, electrical, thermo-mechanical, and fracture properties (mode I and II)
  • Contributor: Voormann, Hauke [Author]; Körbelin, Johann [Author]; Wisniewski, Valea Kim [Author]; Nia, Ali Shaygan [Author]; Romaní Vázquez, Adrián [Author]; Lohe, Martin Rudolf [Author]; Feng, Xinliang [Author]; Fiedler, Bodo [Author]
  • Corporation: Technische Universität Hamburg ; Technische Universität Hamburg, Institut für Kunststoffe und Verbundwerkstoffe
  • Published: 2019
  • Published in: Polymers ; 11(2019), 2 vom: 1. Feb., Artikel-ID 231, Seite 1-29
  • Language: English
  • DOI: 10.3390/polym11020231; 10.15480/882.2110
  • Identifier:
  • Keywords: nano composites ; viscosity ; percolation ; fracture toughness ; mode I ; mode II
  • Origination:
  • Footnote: Sonstige Körperschaft: Technische Universität Hamburg
    Sonstige Körperschaft: Technische Universität Hamburg, Institut für Kunststoffe und Verbundwerkstoffe
  • Description: A trade-off between enhancement of physical properties of the final part and the processability during manufacturing always exists for the application of nanocarbon materials in thermoset-based composites. For different epoxy resins, this study elaborates the impact of nanocarbon particle type, functionalization, and filler loading on the resulting properties, i.e., rheological, electrical, thermo-mechanical, as well as the fracture toughness in mode I and mode II loading. Therefore, a comprehensive set of carbon nanoparticles, consisting of carbon black (CB), single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT), few layer graphene (FLG), and electrochemically expanded graphite (ExG), in purified or functionalized configuration was introduced in various epoxy resins, with different molecular weight distributions. A novel technique to introduce sharp cracks into single-edge notched bending (SENB) fracture toughness specimens led to true values. SWCNT show highest potential for increasing electrical properties without an increase in viscosity. Functionalized MWCNT and planar particles significantly increase the fracture toughness in mode I by a factor of two.
  • Access State: Open Access