RT Journal Article
T1 Effect of nitrogen and oxygen doped carbon nanotubes on flammability of epoxy nanocomposites
A1 Entezar Shabestari, Marjan
A1 Naderi Kalali, Ehsan
A1 González Velázquez, Viviana Jehová
A1 Wang, De-Yi
A1 Fernández Blázquez, Juan Pedro
A1 Baselga Llidó, Juan
A1 Martín Cádiz, Olga
AB To overcome the flammability of epoxy resins, novel nitrogen (CNₓ) and oxygen (COₓ) doped CNT were synthesized via CVD method and epoxy nanocomposites at 2 wt.%. constant loading were prepared by three roll milling and cured. The structures of the nanotubes were confirmed by XRD, XPS, SEM and Raman and it was found a very high aspect ratio especially for COₓ. Thermal degradation as well as glass transition temperatures and elastic moduli were measured by TGA, DSC and DMTA. The flammability of epoxy nanocomposites was studied by microscale combustion calorimetry (MCC) and limiting oxygen index (LOI) determination. Results showed that the fire retardant properties of nanocomposites improved significantly specially for COₓ, which presented a very high LOI (35%) and a homogeneous and uniform surface after burning. This effect was tentatively attributed to the very high aspect ratio of COₓ tubes.
PB Elsevier
SN 0008-6223
YR 2017
FD 2017-09
LK https://hdl.handle.net/10016/26017
UL https://hdl.handle.net/10016/26017
LA eng
NO Authors wish to acknowledge financial support from Spanish Ministerio de Economía y Competitividad under grant MAT2014-57557-R. Authors also wish to thank Dr. Sofía M. Vega-Díaz for her invaluable help with XPS interpretation
DS e-Archivo
RD 19 may. 2024