Effective removal of odors from air with polymer nonwoven structures doped by porous materials to use in respiratory protective devices
| Autor: | Agnieszka Brochocka, Aleksandra Nowak, Rafał Panek, Paweł Kozikowski, Wojciech Franus |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Archives of Environmental Protection, Vol vol. 47, Iss No 2, Pp 3-19 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2083-4772 2083-4810 |
| DOI: | 10.24425/aep.2021.137274 |
| Popis: | Filtering Respiratory Protective Devices (FRPD) is not typically evaluated for exposure to volatile compounds, even though they significantly affect their protective performance. Such compounds are released into the atmosphere by industrial processes and pose serious health risks in people inhaling them. The adsorbent materials currently used to prevent those risks include activated carbon (AC). Zeolites and mesoporous silica materials (MCM) are very popular among the sorption materials. Due to their physical and chemical properties, they are able to adsorb significant amounts of volatile compounds from air. The melt-blown technology was used to produce filtering nonwovens with modifiers. As a result, polymer nonwoven structures with modifiers in the form of AC, zeolite (NaP1 type), molecular sieves (SM, SM 4Å) and mesoporous silica materials (MCM-41) were produced. The use of ACs (AC1 from Zgoda and AC2 from Pleisch) and their mixtures with others modifiers allowed to obtain satisfactory sorption, protective and utility properties. The longest breakthrough time against cyclohexane (approx. 53 min) was afforded by a variant containing AC, against ammonia (approx. 12 min) for the variant with AC2 and a mixture of AC2 and MCM-41. In the case of acetone vapor satisfactory breakthrough times were found for the variants with AC2 and AC1+SM (~20–25 min.). The present work deals with scientific research to improve workers’ and society’s health and safety by pursuing a better working life, and creating a safe social environment. |
| Databáze: | Directory of Open Access Journals |
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