Antioxidants extend the life of plastics
Phenolic antioxidants (AO), also known as primary antioxidants, are highly effective, non-tarnishing stabilizers for organic substrates prone to oxidation, such as plastics, synthetic fibers, elastomers, and waxes. They act as free radical scavengers and are mainly used to protect finished products.
Phosphite antioxidants, also known as secondary antioxidants, act as peroxide decomposers, protect polymers and ensure color retention of easily oxidizable organic polymers, especially during processing.
Thioester antioxidants decompose and neutralize hydroperoxides formed by polymer oxidation. Thioesters are used to provide heat aging protection and maintain color.
Aminic antioxidants help maintain physical and surface properties, including color, scorch resistance, and heat resistance.
A binary blend is a combination of a primary (phenolic) antioxidant and a secondary (phosphite) antioxidant for optimal stability during processing and service life.
