White carbon black: the "invisible engine" of green tires and the driving force of industrial upgrading
In the wave of low-carbon transformation in the global automotive industry, white carbon black (precipitated silica) has become the core material for green tires due to its unique nanoscale porous structure (particle size 10-40nm) and surface silanol activity. Although traditional carbon black can improve tire wear resistance, it significantly increases rolling resistance, leading to a 5% -10% increase in fuel consumption. By forming a three-dimensional network structure with rubber molecular chains, white carbon black can reduce rolling resistance by 20% -30%, while improving anti slip performance by more than 10%, increasing fuel economy by 3% -5%, and shortening braking distance by 10% -15%.


As the world's largest producer of white carbon black, China's production will exceed 1.8 million tons by 2025, accounting for over 40% of the global total. Leading enterprise Quecheng Co., Ltd. has reduced production costs by 15% -20% through the integrated industrial chain layout of "sodium silicate white carbon black", and its products have entered the supply chains of international tire giants such as Michelin and Bridgestone. With the EU tire labeling law increasing the requirement for rolling resistance from 3.5N/kN to 2.5N/kN, the proportion of highly dispersed white carbon black added to green tires will jump from 35% to 55%, becoming the core driving force for industry growth.