Premium
Experimental evaluation and modeling of thermal conductivity of tetrafunctional epoxy resin containing different carbon nanostructures
Author(s) -
Romano Vittorio,
Naddeo Carlo,
Vertuccio Luigi,
Lafdi Khalid,
Guadagno Liberata
Publication year - 2017
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24629
Subject(s) - epoxy , materials science , nanocomposite , thermal conductivity , composite material , carbon nanotube , curing (chemistry) , nanoparticle , thermal conduction , conductivity , carbon fibers , graphite , composite number , nanotechnology , chemistry
This study attempts to investigate the thermal conductivity behavior of epoxy nanocomposites containing different types of nanofillers, such as 1‐D Multiwall Carbon Nanotubes (MWCNTs) and 2‐D predominant shape of Exfoliated Graphite nanoparticles (EG) at loading level from 0.25 to 3% wt. For all the analyzed epoxy nanocomposites calorimetric investigation shows that EG nanoparticles accelerate the curing process of the epoxy resin. Thermal conductivity measurements show that this acceleration is directly related to the better heat conduction obtained through the incorporation of EG in the epoxy matrix. The thermal conductivity of epoxy nanocomposites filled with EG, unlike of epoxy nanocomposites containing MWCNTs, increases significantly with increasing content of nanofiller. An increase in thermal conductivity of ∼ 300% has been detected for a filler percentage of only 3%wt of EG. The application of Deng‐Zheng micromechanical model has proven to be very effective in predicting analytically the thermal conductivity of the analyzed nanocomposites. POLYM. ENG. SCI., 57:779–786, 2017. © 2017 Society of Plastics Engineers