<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper describes the separation of oxidation resistant components from the seeds of pomegranate (PSA), grape (GSE) and sea buckthorn (SSE). The anti-oxidation properties of the resultant extracts, used as the natural anti-oxidants for polypropylene (PP), were compared with Irganox1010. The effects of these natural antioxidants on the antioxidant levels of PP samples were estimated by thermal oxidative aging and micromixed rheology, OIT, XRD, SEM, TEM and mechanical properties tests of samples before and after aging. The results show that adding PSA, GSE and SSE can obviously increase the mechanical properties of PP. In addition, the molding stability of polypropylene raw material is prolonged and improved. Moreover, the mechanical properties of the PP samples after 240 h of thermal oxidative aging indicates that, the best results, closest to the anti-oxidation ability of Irganox1010, can be obtained when the additive amount is 0.5% (wt%) for PSE or 0.7% (wt%) for GSE.</p></abstract>

This paper describes the separation of oxidation resistant components from the seeds of pomegranate (PSA), grape (GSE) and sea buckthorn (SSE). The anti-oxidation properties of the resultant extracts, used as the natural anti-oxidants for polypropylene (PP), were compared with Irganox1010. The effects of these natural antioxidants on the antioxidant levels of PP samples were estimated by thermal oxidative aging and micromixed rheology, OIT, XRD, SEM, TEM and mechanical properties tests of samples before and after aging. The results show that adding PSA, GSE and SSE can obviously increase the mechanical properties of PP. In addition, the molding stability of polypropylene raw material is prolonged and improved. Moreover, the mechanical properties of the PP samples after 240 h of thermal oxidative aging indicates that, the best results, closest to the anti-oxidation ability of Irganox1010, can be obtained when the additive amount is 0.5% (wt%) for PSE or 0.7% (wt%) for GSE.

Impact of natural antioxidant systems on the oxidation resistance and mechanical properties of polypropylene

Key Laboratory of Oil and Gas Fine Chemicals

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This paper describes the separation of oxidation resistant components from the seeds of pomegranate (PSA), grape (GSE) and sea buckthorn (SSE). The...

Impact of natural antioxidant systems on the oxidation resistance and mechanical properties of polypropylene

Pubblicato online: 17 mar 2020

Pagine: 68 - 74

DOI: https://doi.org/10.2478/pjct-2020-0010

Parole chiave
Polypropylene, Natural antioxidants, Thermal oxidative aging, Oxidation induction time, Grape seeds

© 2020 Dilhumar Musajan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Impact of natural antioxidant systems on the oxidation resistance and mechanical properties of polypropylene

Pubblicato online: 17 mar 2020

Pagine: 68 - 74

DOI: https://doi.org/10.2478/pjct-2020-0010

Parole chiavePolypropylene, Natural antioxidants, Thermal oxidative aging, Oxidation induction time, Grape seeds

© 2020 Dilhumar Musajan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
Polypropylene, Natural antioxidants, Thermal oxidative aging, Oxidation induction time, Grape seeds