Silica has become a strategic raw material for the tire production, due to the development of high energy efficient tires.
Energy efficient tires are part of the latest technological revolution, whose application of a chemical raw material, precipitated silica, enables the car equipped with this type of tire to reduce fuel consumption due to reduced rolling resistance caused in part by the weight of the vehicle constantly pressed against the road. The deformation caused by the weight of the car converts the kinetic energy into heat, wearing it down. This phenomenon is known as the loss of hysteresis.
Applied to the tire tread, silica reduces the loss of hysteresis without reducing tire grip on the road. Thus, it reduces rolling resistance by about 30%, which means a 5% to 7% reduction in fuel consumption. Silica also increases the wet grip of the tire