Determination of Dynamic Mechanical Properties on Addition of Carbon Black-Nanosilica Hybrid Fillers in NR-SBR Blends with Special Reference to Power Transmission Belt Applications

Table 1

The characteristics of various raw materials used for the preparation of composites.

Properties	ISNR 20	SBR 1502	Zeosil 1165 MP	N550
Dirt content (maximum, %)	0.20	—	—	—
Mooney viscosity (ML () @100°C)			—	—
Glass transition temperature (°C)	-70°C	-50°C	—	—
Plasticity Retention Index (PRI)		—	—	—
Density (gm/cm^3)	0.92	0.93	1.2	1.8
Surface area (m^2/g)	—	—	140-180	40-60