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Plasma degradation ...
Plasma degradation of contaminated PPE : an energy-efficient method to treat contaminated plastic waste
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- Tobias, Mariano Marco (författare)
- Heriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland.
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- Åhlén, Michelle (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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- Cheung, Ocean (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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- Bucknall, David G. (författare)
- Heriot Watt Univ, Sch Engn & Phys Sci, Inst Chem Sci, Edinburgh EH14 4AS, Scotland.
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- McCoustra, Martin R. S. (författare)
- Heriot Watt Univ, Sch Engn & Phys Sci, Inst Chem Sci, Edinburgh EH14 4AS, Scotland.
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- Yiu, Humphrey H. P. (författare)
- Heriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland.
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Heriot Watt Univ, Sch Engn & Phys Sci, Chem Engn, Edinburgh EH14 4AS, Scotland Nanoteknologi och funktionella material (creator_code:org_t)
- Springer Nature, 2023
- 2023
- Engelska.
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Ingår i: NPJ MATERIALS DEGRADATION. - : Springer Nature. - 2397-2106. ; 7:1
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Teknisk fysik med inriktning mot nanoteknologi och funktionella material
- Engineering Science with specialization in Nanotechnology and Functional Materials
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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