①Reinforcement of carbon black As an important reinforcing agent and filler for rubber products, it can play a role in improving the mechanical properties of rubber. Today, precipitated silica has gradually become its competitor.

② Photoprotective action The oxygen-containing groups on the surface of carbon black can react with the groups generated after the polymer is decomposed by ultraviolet radiation, thereby preventing the polymer from further decomposing. Therefore, the low blending amount of carbon black can block the ultraviolet rays on the surface of the product, but at the same time, its color will become dark gray or black.

③ Coloring Carbon black is an important pigment for black inks and paints, and its basic properties directly affect the blackness, rheology and gloss of the two. In addition, carbon black is also often used for color matching of plastic products.

④ The development of special conductive carbon blacks with excellent conductivity enhancement properties can make conductive polymers such as plastics inherently conductive. In addition, conductive carbon black is becoming more and more popular in energy fields, such as (power) lithium-ion batteries, lead-acid batteries, and supercapacitors.