Preparation and properties of polystyrene composites modified by macromolecular antioxidant

Abstract A macromolecular antioxidant was prepared by copolymerization with styrene and modified A1010-co-PS. Its chemical structure was confirmed by Fourier transform infrared (FTIR). It was added into the formula of PS composite material and the thermal and oxygen aging experiment was carried out on the material. The tensile strength is stable at about 27MPa, the bending strength is stable at about 33MPa, and the impact strength is stable at about 2.3kJ/m 2 . The results show that it has a more significant effect than antioxidant 1010 and has higher performance stability.