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Plasma degradation ...
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Tobias, Mariano MarcoHeriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland.
(författare)
Plasma degradation of contaminated PPE : an energy-efficient method to treat contaminated plastic waste
- Artikel/kapitelEngelska2023
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Springer Nature,2023
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LIBRIS-ID:oai:DiVA.org:uu-502656
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-502656URI
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https://doi.org/10.1038/s41529-023-00350-9DOI
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Språk:engelska
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Sammanfattning på:engelska
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The use of PPE has drastically increased because of the SARS-CoV-2 (COVID-19) pandemic as disposable surgical face masks made from non-biodegradable polypropylene (PP) polymers have generated a significant amount of waste. In this work, a low-power plasma method has been used to degrade surgical masks. Several analytical techniques (gravimetric analysis, scanning electron microscopy (SEM), attenuated total reflection-infra-red spectroscopy (ATR-IR), x-ray photoelectron spectroscopy (XPS), thermogravimetric analysis/differential scanning calorimetry (TGA/DSC) and wide-angle x-ray scattering (WAXS)) were used to evaluate the effects of plasma irradiation on mask samples. After 4 h of irradiation, an overall mass loss of 63 +/- 8%, through oxidation followed by fragmentation, was observed on the non-woven 3-ply surgical mask, which is 20 times faster than degrading a bulk PP sample. Individual components of the mask also showed different degradation rates. Air plasma clearly represents an energy-efficient tool for treating contaminated PPE in an environmentally friendly approach.
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Åhlén, MichelleUppsala universitet,Nanoteknologi och funktionella material(Swepub:uu)micah729
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Cheung, OceanUppsala universitet,Nanoteknologi och funktionella material(Swepub:uu)ocech274
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Bucknall, David G.Heriot Watt Univ, Sch Engn & Phys Sci, Inst Chem Sci, Edinburgh EH14 4AS, Scotland.
(författare)
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McCoustra, Martin R. S.Heriot Watt Univ, Sch Engn & Phys Sci, Inst Chem Sci, Edinburgh EH14 4AS, Scotland.
(författare)
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Yiu, Humphrey H. P.Heriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland.
(författare)
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Heriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland.Nanoteknologi och funktionella material
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Sammanhörande titlar
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Ingår i:NPJ MATERIALS DEGRADATION: Springer Nature7:12397-2106
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