Abstract
The present work focuses on a comparative study of the thermal and electrical behaviour of N,N′-tetraglycidyl diaminodiphenylsulphone (TGDDS) denoted as ‘B’ to find the suitability for its use in high-performance applications. The synthesis of the tetraglycidyl epoxy was done and they were characterized by FT-IR (Fourier transform infrared spectra) and nuclear magnetic resonance spectra (1H-NMR and 13C-NMR). Nanoclay and POSS-amine nanoreinforcements denoted as N1 and N2 were incorporated into the synthesized epoxy resins. Curing was done using diaminodiphenylmethane (DDM) and bis(3-aminophenyl)phenylphosphine oxide (BAPPO) curing agents denoted as X and Y, respectively. The thermal behaviour of the tetraglycidyl resins and their corresponding nanocomposites was studied by thermogravimetric analysis (TGA). The electrical behaviour, namely dielectric strength, comparative tracking index (CTI), volume resistivity, surface resistivity and arc resistance of the nanocomposites were also studied and the interesting results obtained are discussed.
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