Carbon black for tires

    New types of carbon black for tires mainly include low Rolling resistance carbon black and high-performance carbon black.
Low Rolling resistance carbon black reduces tire Rolling resistance, and developing "green tire" is the inevitable trend of tire product development today.
    Cars bring great convenience to human life, and they consume a lot of fuel and produce a large amount of exhaust gas, which also brings huge pollution to humans. Therefore, on the basis of ensuring tire wear resistance and traction, low Rolling resistance tires, or called "green tires" and "environment-friendly tires", which can further save fuel for cars, have developed rapidly. The European Union and the United States have listed the Rolling resistance of tires as the basis for tire use quality classification and fuel consumption limit. China has also formulated and begun to implement the national standard of automobile fuel consumption limit, so it is imperative to reduce the Rolling resistance of tires.
    The three major factors that affect the fuel consumption of a car are the air resistance of the car body, the Rolling resistance of the tires, and the resistance of the engine power transmission. At a speed of 100km/h, the Rolling resistance of the tires is three times the power transmission resistance, and the air resistance of the car body is 1/2, that is, the Rolling resistance of the tires accounts for more than 1/3 of the driving resistance of the car. The practice shows that when the Rolling resistance of car tires is reduced by 7.3% or the Rolling resistance of truck tires is reduced by 3.6%, the fuel oil consumption of vehicles can be reduced by about 1%.
    There are the following ways to reduce tire Rolling resistance: tubeless and ultra flat radial tires; Using solution polymerized styrene butadiene adhesive; High dispersive white carbon black or low Rolling resistance carbon black shall be used; The miniaturization and lightweight of tires.
   The Rolling resistance of a tire comes from the hysteresis loss of rubber caused by rolling deformation, the friction between the tire and the road, and the air resistance of the tire itself. Unless the road surface is particularly bad or the driving speed is too fast, the rubber hysteresis loss caused by rolling deformation under normal conditions is the main factor affecting the Rolling resistance of the tire.
    At the same time of reducing the Rolling resistance of the tire, the comprehensive performance of the tire must be taken into account, so that the tire can maintain good driving safety, that is, wet skid resistance, ice skid resistance, or traction, and must also have a long service life, that is, wear resistance, puncture resistance, and cutting resistance,
    Among them, wear resistance is the main factor determining the service life.