Compared with carbon black, white carbon black has significant advantages in certain properties. In rubber reinforcement, white carbon black can make rubber products have lower rolling resistance and better aging resistance, which is difficult to replace with carbon black. But carbon black has more advantages in conductivity, coloring, and other aspects, and its cost is relatively low. Compared with inorganic fillers such as calcium carbonate, the reinforcement effect of white carbon black is more significant, which can greatly improve the mechanical properties of the material. Calcium carbonate mainly plays a role in filling and reducing costs. In practical applications, appropriate reinforcement materials are usually selected based on specific usage needs and cost budgets, or different materials are combined to achieve the best usage effect.