Effect of TiO2 and oMMT nanofiller on thermal conductivity and heat deflection temperature of nanodielectric composites

This paper focuses on thermal conductivity and heat deflection temperature (HDT) of Epoxy-oMMT, Epoxy-TiO₂ and Vinyl ester-oMMT nanocomposites with 2, 5 and 7 wt.% were prepared using high shear mixing technique with suitable curing cycles and operating speed. The thermal conductivity and HDT was measured using the Unithermo model 2022, as per ASTME-1530(2011) and Tinius Olsen as per ASTM D-648(2007) at 1-8 Mpa of loading. The thermal conductivity and HDT increases with the addition of oMMT and TiO₂ nanofiller indicating the formation of a percolative heat sink pathway. Further, thermal conductivity and HDT data obtained both from experiment and analytical estimations have shown good agreement.