Antioxidants are additives that inhibit or delay the degradation of polymers by oxygen or ozone in the atmosphere.
   It is mainly divided into blocked phenolic main antioxidants and phosphite esters, amines, thiolipids and other auxiliary antioxidants.
                              Application fields mainly include rubber, plastics, petroleum fuels, food and feed industry.
                                                      Amine antioxidants are mainly used in the rubber industry.
                 The most commonly used in plastic industry are blocked phenols, followed by phosphite and thioester antioxidants