In February 2026, the article "Mechanisms and Types of Common Antioxidants" was released, systematically sorting out the mechanism and product system of polymer antioxidants, providing important reference for material selection in the industry. The core cause of polymer aging is free radicals. Antioxidants block the degradation path of polymer chains and extend the service life of products by neutralizing free radicals and eliminating hydroperoxides. Antioxidants are mainly divided into three categories: primary antioxidants, secondary antioxidants and UV stabilizers. Hindered phenols are the core of primary antioxidants, such as general-purpose products like 1010 and 1076, which are suitable for most plastics and rubbers; phosphites and thioesters are secondary antioxidants, often compounded with primary antioxidants to achieve synergistic effect; UV stabilizers include hindered amine light stabilizers and ultraviolet absorbers, which specifically resist ultraviolet aging. Different products need to be accurately selected according to processing temperature, material type and application scenarios, while avoiding problems such as acid-base conflict and mechanism conflict. For more information, please click: https://www.tiktok.com/@mia_iota/video/7597717976720149782