Antioxidant 168, scientifically known as Tris(2,4-di-tert-butylphenyl) phosphite, is a highly valued secondary antioxidant in the plastics industry. Its chemical structure and properties make it exceptionally effective at protecting polymers from degradation caused by heat, light, and oxidation. With a CAS number of 31570-04-4, this compound has become a staple additive for manufacturers aiming to enhance the durability and lifespan of their plastic products.

The key to Antioxidant 168's effectiveness lies in its mechanism of action. As a phosphite ester, it acts as a hydroperoxide decomposer. During polymer processing and aging, polymers can form hydroperoxides, which are unstable and can initiate chain reactions leading to degradation. Antioxidant 168 efficiently breaks down these hydroperoxides into stable, non-radical products, thereby halting the degradation process before it can cause significant damage. This is particularly important for preventing discoloration, brittleness, and loss of mechanical strength in plastics.

The physical properties of Antioxidant 168 further contribute to its widespread adoption. It typically appears as a white, free-flowing powder, possessing low volatility, which means it is less likely to evaporate during high-temperature processing. Its excellent hydrolytic stability is another significant advantage, ensuring that it remains effective even in the presence of moisture. Furthermore, its low toxicity profile makes it suitable for applications where safety is a primary concern, including indirect food contact materials.

The applications for Antioxidant 168 are extensive, spanning various polymer types and end-use products. It is widely incorporated into polyolefins (like PE and PP), styrenics (ABS, PS), polyamides (PA), polycarbonates (PC), polyesters (PET), and various elastomers. This broad compatibility allows it to protect everything from automotive components and packaging films to consumer goods and textiles. When manufacturers consider purchasing plastic additives, Antioxidant 168 stands out for its proven performance and reliability in protecting valuable polymer assets.

NINGBO INNO PHARMCHEM CO.,LTD. supplies premium-grade Antioxidant 168, ensuring that our clients receive a product that meets stringent quality standards. By integrating this essential additive into their formulations, businesses can significantly improve the processing stability and long-term performance of their polymer products.