Kinetic Modeling of the Effect of Antioxidant Additives on Biodiesel Oxidation Stability

Souza, Vinícius Marcenes Gonçalves de; d’Avila, Luiz Antonio

doi:10.1021/acs.iecr.3c01974

Cited by 2 publications

(1 citation statement)

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“…Based on the mechanism, antioxidants are categorized as primary antioxidants (radical scavengers), secondary antioxidants (peroxide decomposers), and metal deactivators (complex-forming or chelating agents). , According to the chemical structure formula, the primary antioxidants are classified into hindered phenol and hindered amine antioxidants. The hindered amine antioxidants (heavily polluted and dark in color) are mostly applied in black and dark plastic or rubber products. , Secondary antioxidants such as organosulfur (e.g., dialkyl sulfides and dithiocarbamates) and organophosphorus (e.g., triaryl phosphites and trialkyl phosphites) play a synergistic role by being applied with the primary antioxidants .…”

Section: Introductionmentioning

confidence: 99%

Antimigration Polypropylene Antioxidants: A Review

Li,

Zhang,

Jiang

et al. 2024

Ind. Eng. Chem. Res.

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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.

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