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How the Dimensions of Plant Filler Particles Affect the Oxidation-Resistant Characteristics of Polyethylene-Based Composite Materials
Abstract
This study analyzed the possibility of using plant-originated waste materials (black and green tea dust) as functional polyethylene fillers. The dependence between the size of the filler particles and their antioxidant potential is discussed. Six fractions were selected: below 50 µm, 50–100 µm, 100–200 µm, 200–400 µm, 400–630 µm and 630–800 µm. Significant differences between the effect of particle size and the antioxidant properties of black and green tea were found using the extraction method to analyze antioxidant activity (DPPH method) and total phenolic content (Folin-Ciocalteu method), suggesting a higher potential for using green tea as a filler with antioxidant properties, as well as the benefits of finer active filler distribution. Biomass waste fillers were mixed with low-density polyethylene LDPE SEB 853 I’m Green®, Braskem. Those samples were oxidized at 100 °C for 5 and 15 days to investigate the radical scavenging properties of fillers in composites. Fourier transform infrared spectroscopic studies show that the addition of both types of filler prevents the thermo-oxidation of polyethylene for 5 days. After 15 days, all samples except the BTW 400–630 and 630–800 µm exhibited oxidation. The mechanical properties of the LDPE and its’ composites were tested, and we noted an increased brittleness of neat LDPE after thermal oxidation. The addition of black tea particles above 100 µm in size prevents this behavior.
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Authors (5)
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Joanna Aniśko
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Joanna Cichocka
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Jacek Andrzejewski dr inż.
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Mateusz Barczewski
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Materials
no. 17,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Aniśko J., Kosmela P., Cichocka J., Andrzejewski J., Barczewski M.: How the Dimensions of Plant Filler Particles Affect the Oxidation-Resistant Characteristics of Polyethylene-Based Composite Materials// Materials -, (2024),
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma17194825
- Sources of funding:
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- Free publication
- Verified by:
- Gdańsk University of Technology
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