Research and Development of Organic/Inorganic Mixtures Compound Coated Antioxidants

Abstract

For plastic thermal oxidative aging, it is inevitable that the material properties will decline and eventually lead to product damage. It is very important to improve the performance retention rate of materials under aging conditions and ultimately delay the damage to prolong the service life of products. In this study, nano-zinc oxide was selected as the compound auxiliary antioxidant of the main antioxidant 1010. Nano-zinc oxide is very obvious to improve the comprehensive performance of plastics. The retention rate of the tensile strength and elongation at break of the plastic in the test is significantly improved after hot air aging due to the small size effect of nano-zinc oxide increases the cross-linked network density, which is related to the realization of molecular-level bonding of polymer materials. This study not only innovated in the selection of materials which selected nano-zinc oxide as an auxiliary antioxidant, but also realized the coating structure of the main/auxiliary antioxidant by changing the process conditions, so as to finally realize the ideal mixing and distribution of the main/auxiliary antioxidant, to improve the mechanical properties of general-purpose plastics after introduction, and ultimately optimize the antioxidant properties.