Antioxidant 168, scientifically known as Tris(2,4-di-tert-butylphenyl) phosphite and identified by CAS number 31570-04-4, stands out as a highly effective phosphite ester antioxidant. Its primary function as a processing stabilizer is critical in the polymer industry, where it protects materials from degradation caused by heat and oxidation during manufacturing and end-use. The chemical's unique properties, including low volatility, high thermal stability, and remarkable resistance to hydrolysis, make it a preferred additive for a wide array of applications.

The mechanism by which Antioxidant 168 operates is by efficiently decomposing hydroperoxides formed during polymer autoxidation. This action interrupts the chain reactions that lead to material breakdown, thereby preserving the polymer's molecular weight and preventing unwanted color changes. Its synergistic effect when combined with primary antioxidants, such as hindered phenols (like IRGANOX or WESTCO™ AO-1010), significantly enhances the long-term thermal stability and performance of plastic and rubber products. This makes it an indispensable component in formulations aiming for extended product life and superior resistance to environmental factors.

The application scope of this high-purity chemical is extensive. It is widely incorporated into polyolefins (PE, PP), olefin copolymers, polycarbonates, polyamides, ABS resins, PS resins, and PVC. Its utility also extends to the rubber industry, where it safeguards elasticity, and to coatings and paints, where it maintains surface integrity. For manufacturers looking to buy Antioxidant 168, its availability in powder form with a purity exceeding 99% underscores its quality and suitability for even the most demanding applications. NINGBO INNO PHARMCHEM CO., LTD. ensures a reliable supply of this essential material, supporting industries in achieving optimal product performance and durability.