Polymers additives is one of the applications in polymers to improve the mechanal property, durability or processability.
Fillers such as carbon black or silica gel are added to polymers to improve tensile strength, abrasion resistance and toughness.
Plasticizers are added to reduce the glass transition temperature.
Stabilizers contain antioxidants and UV protectants.
Lubricants are added to allow easier processing.
Other additives like colorants and flame retardants are also added in polymers.