Antimigration Polypropylene Antioxidants: A Review

作者：Zijia Li, Chun‐Ting Zhang, Yu Jiang, Yiqing Bai, Meng Xu, Kai Xu, Dali Gao, Fabrice Leroux, Yongjun Feng · 发表于：Industrial & Engineering Chemistry Research · 年份：2024 · DOI：10.1021/acs.iecr.3c03891 · 被引用次数：19 · 研究领域：biodegradable polymer synthesis and properties、Polymer crystallization and properties、Polymer composites and self-healing

Hindered phenolic antioxidants have been extensively recognized and applied to boost the heat resistance and oxidative aging performance of poly(propylene) (PP) composites. Low-molecular-weight antioxidants are easy to volatilize, migrate, and be extracted from PP or PP-based products, which can directly reduce the antithermal oxidative aging effect of PP and its composites, and it can contaminate food or drugs under its packaging. The design of an efficient and durable antioxidant with antimigration performance has drawn the attention of researchers. Currently, three main approaches are explored: (I) enhancement of molecular weight, that is, high molecular weight of antioxidants can stimulate the structure stability and the resistance toward migration; (II) inorganic immobilization, which involves immobilizing the antioxidants on inorganic substrate to enhance the dispersion and the antimigration performance; and (III) intercalation-mediated assembly, which involved intercalating low-molecular-weight antioxidants into the interlayer region of a layered host to boost antimigration performance based on the host–guest interaction.