In applications exposed to environmental elements, particularly sunlight and fluctuating temperatures, polymers are susceptible to photodegradation and thermal aging. NINGBO INNO PHARMCHEM CO.,LTD. highlights the significant advantages of using Antioxidant 245 (CAS: 36443-68-2) in combination with light stabilizers to impart excellent weather resistance to plastic materials.

Antioxidant 245, a high-performance hindered phenolic antioxidant, primarily protects polymers from thermo-oxidative degradation. It works by scavenging free radicals that are generated by heat and oxygen, thus preventing the polymer chains from breaking down. This intrinsic protection is crucial for maintaining the mechanical integrity and physical properties of plastics during manufacturing and throughout their service life.

However, when polymers are exposed to UV radiation from sunlight, a different degradation pathway is initiated – photo-oxidation. Light stabilizers, which include UV absorbers and Hindered Amine Light Stabilizers (HALS), are designed to combat this specific type of degradation. UV absorbers work by absorbing harmful UV radiation and dissipating it as heat, while HALS trap free radicals formed by UV exposure.

The true power of Antioxidant 245 is unleashed when it's used synergistically with these light stabilizers. While Antioxidant 245 provides the foundation of thermal stability, the light stabilizers offer protection against UV-induced degradation. Together, they create a comprehensive defense system. This combined approach significantly enhances the overall weatherability of the polymer, preventing phenomena like chalking, cracking, color fading, and loss of mechanical properties that are typically associated with prolonged outdoor exposure.

This synergistic effect is particularly beneficial for polymers used in outdoor applications, such as automotive components, construction materials, agricultural films, and outdoor furniture. The use of Antioxidant 245 alongside appropriate light stabilizers ensures that these products maintain their performance and aesthetic appeal even under harsh environmental conditions.

NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing formulators with the tools they need to create superior, long-lasting products. By offering high-quality Antioxidant 245 and understanding its complementary role with other additives, we help our clients achieve exceptional weather resistance in their polymer formulations.