[Supply and Sales of Antioxidants] What are the hindered phenolic antioxidants?

　 antioxidants are a class of chemical substances that only when present in a small amount, it can delay or inhibit the oxidation process of the polymer, thereby preventing the aging of the polymer and extending its service life. it is also called an “anti-aging agent”. antioxidants can be divided into main antioxidants, auxiliary antioxidants…