The 'invisible champion' of green tires: How precipitated white carbon black reshapes the rubber industry


Under the "dual carbon" goal, green tires have become the focus of the industry, and precipitated white carbon black has become a key material to replace traditional carbon black due to its low rolling resistance and high wet skid resistance. This article provides a detailed analysis of the mechanism of white carbon black in tire tread rubber: its nanoscale particles form chemical bonds with silane coupling agents, significantly enhancing the interfacial bonding between rubber and fillers, reducing tire rolling resistance by 20% -30%, and increasing fuel efficiency by 5% -8%. Taking an international tire brand as an example, its "Silent Cotton" series tires add highly dispersed white carbon black to maintain wear resistance while reducing noise decibels to below 68dB, meeting the EU A-level standard. In addition, white carbon black also promotes the diversification of tire colors, meeting the personalized appearance needs of new energy vehicles.