Nanodiamond and onion-like carbon polymer nanocomposites

The current work demonstrates that nanodiamond (ND) of detonation origin and onion-like carbon (OLC) are valuable additives in multifunctional polymer composites, particularly for polymers used in microelectronic applications. We demonstrate that addition of ND to a polyimide matrix increases the thermal degradation temperature of the composites up to 30 °C and also improves adhesion. The addition of 2 wt.% of ND increases thermal conductivity of PDMS up to 15%. Finally, we also demonstrate that the addition of OLC to polydimethylsiloxane and polyurethane matrices increases the loss tangent of the composites.