White carbon black (SiO ₂ · nH ₂ O), as a high-performance inorganic filler, is reshaping the rubber industry landscape with "green tires" as its core driving force. Its porous structure endows the product with a high specific surface area (145-300 m ²/g) and strong surface activity, forming a nanoscale interface with the rubber matrix, which increases tire wear resistance by 30%, reduces rolling resistance by 20%, and improves wet skid resistance by 15%.


Taking electric vehicle tires as an example, the amount of white carbon black filling increases by 40% compared to traditional tires. When used in conjunction with silane coupling agents, it can achieve a balance between low heat generation, long lifespan, and high safety. Data shows that 70% of global white carbon black is used in the rubber field, with high dispersion products having high technical barriers. Domestic companies such as Jinfa Technology have achieved import substitution through breakthroughs in surface modification technology.


In the future, with the advancement of the "dual carbon" target, the application of white carbon black in high-end scenarios such as aviation tires and seals will accelerate, and its composite filler technology with carbon black (such as biphasic fillers) will become a key path to reduce rolling resistance.