Additives used for plastic molding products include plasticizers, heat stabilizers, antioxidants, light stabilizers, flame retardants, foaming agents, antistatic agents, mildew inhibitors, colorants and whitening agents, fillers, coupling agents, lubricants, release agents, etc. Among them, colorants, whitening agents and fillers are not special chemicals for plastics, but general matching materials.

Due to the rise of petrochemicals, the plastics industry has developed rapidly, and plastic additives have become an important chemical industry. According to the differences in the composition of plastic varieties and the use of plastics in various countries, the consumption of plastic additives is about 8% to 10% of the plastic production. Plasticizers, flame retardants and fillers are plastic additives with a large amount of use.