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polymersArticleLow-Temperature Thermal Degradation of Disinfected COVID-19 Non-Woven Polypropylene–Based Isolation Gown Wastes into Carbonaceous CharM. M. Harussani 1 , Umer Rashid 2, , S. M. Sapuan 1,3, and Khalina AbdanAdvanced Engineering Materials and Composites Investigation Biotin-azide Chemical Centre (AEMC), Division of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; [email protected] Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia Laboratory of Biocomposite Technologies, Institute of Tropical Forestry and Forest Merchandise, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; [email protected] Correspondence: [email protected] (U.R.); [email protected] (S.M.S.)Citation: Harussani, M.M.; Rashid, U.; Sapuan, S.M.; Abdan, K. Low-Temperature Thermal Degradation of Disinfected COVID-19 Non-Woven Polypropylene–Based Isolation Gown Wastes into Carbonaceous Char. Polymers 2021, 13, 3980. https://doi.org/10.3390/ polym13223980 Academic Editor: Serge Bourbigot Received: 24 September 2021 Accepted: 20 October 2021 Published: 17 NovemberAbstract: Yields of carbonaceous char using a higher surface location have been enhanced by decreasing the temperature to improve the conversion of hazardous plastic polypropylene (PP), the big element in abundantly made use of isolation gowns. This study applied pyrolysis with unique low pyrolytic temperatures to convert disinfected PP-based isolation gown waste (PP-IG) into an optimised volume of char yields. A batch reactor using a horizontal furnace was used to mediate the thermal decomposition of PP-IG. Enhanced surface location and porosity value of PP-IG derived char were obtained by means of an optimised slow pyrolysis strategy. The results showed that the volume of yielded char was inversely proportional for the temperature. This course of action relied heavily on the course of action parameters, in particular pyrolytic temperature. Moreover, because the heating rate decreased, also as longer isothermal residence time, the char yields had been Tetracosactide In stock increased. Optimised temperature for maximum char yields was recorded. The enhanced SBET values for the char and its pore volume had been collected, 24 m2 g-1 and 0.08 cm3 g-1 , respectively. The char obtained at higher temperatures show larger volatilisation and carbonisation. These findings are beneficial for the utilisation of this pyrolysis model in plastic waste management and conversion of PP-IG waste into char for additional activated carbon and fuel briquettes applications, together with the enhanced char yields, amidst the COVID-19 pandemic. Search phrases: slow pyrolysis; COVID-19 isolation gown; polypropylene; char; pyrolysis parameters1. Introduction Severe acute respiratory syndrome coronavirus (SARS-CoV-2 or COVID-19 virus) pandemic attacked the planet vigorously from the fourth quarter of 2019 until the present. Therefore, the Globe Well being Organization (WHO) [1] announced a public wellness emergency as a consequence of the outbreak on 30 January 2020. As reported on 7 February 2021, there have been 106 million active COVID-19 instances, with 2.three million deaths calculated from 219 countries and regions impacted by the global outbreak [2]. Environmental pollution is among the most worrying consequences due to this COVID-19 epidemic. As of 22 November 2020, a massive level of COVID-19 health-related waste (C.
