The selection of appropriate additives is critical for optimizing the performance and lifespan of polymer products. Among these, antioxidants are crucial for preventing degradation caused by oxidation. Understanding the different types of antioxidants and their mechanisms of action is key to making informed choices. Phenolic antioxidants, known for their ability to scavenge free radicals, are a cornerstone in polymer stabilization. As a professional manufacturer, we emphasize the importance of selecting the right antioxidant for your specific application.

Antioxidants are broadly classified into primary and secondary types. Primary antioxidants, typically sterically hindered phenols, act as radical scavengers. They interrupt the autoxidation chain by donating a hydrogen atom to peroxy radicals, forming stable quinone methides. Antioxidant CA is a prime example of a high-performance phenolic antioxidant, offering excellent protection against thermal and oxidative degradation. Its efficacy is particularly noted in polymers like butadiene, ABS, elastomers, polyolefins (PE, PP), and flexible PVC.

Secondary antioxidants, such as phosphites and thioesters, work by decomposing hydroperoxides, which are formed during the oxidation process. These compounds act synergistically with primary antioxidants, providing a more complete stabilization system. For instance, combining Antioxidant CA with a phosphite antioxidant can enhance processing stability and long-term thermal aging resistance. This synergistic approach is a common strategy for manufacturers looking to buy premium performance from their additive packages.

When selecting an antioxidant, consider factors such as the polymer type, processing conditions, and desired end-use properties. For polymers susceptible to rapid oxidation or those processed at high temperatures, a potent phenolic antioxidant like Antioxidant CA is essential. Its excellent extraction resistance and color retention make it a versatile choice for a wide range of applications. As a trusted supplier, we offer expert advice and high-quality Antioxidant CA to help you achieve optimal polymer stabilization. Contact us to discuss your formulation needs and to purchase this vital additive.