Affiliation:
1. Central Institute for Labour Protection – National Research Institute Department of Personal Protective Equipment, Warsaw , Poland
Abstract
Abstract
Toxicological research on the influence of noxious nanoparticles on human health indicates the need to develop efficient protective devices. In particular, this concerns respiratory protective equipment employing filtration nonwovens. This paper presents a methodology for the improvement of the filtration efficiency of electret nonwovens against nanoparticles by enriching amorphous polycarbonate (PC) with additives of different electrostatic potentials. We introduced perlite granules (positive charge) and amber granules (negative charge) to the polymer stream in melt-blown technology. Filtration efficiency was assessed by a standard method using paraffin oil and sodium chloride aerosol, as well as by a non-standard method using NaCl nanoparticles. The experiments showed that strengthening the effects of electrostatic forces by the introduction of modifiers is a promising approach to improving the efficiency of electret nonwovens against nanoparticles.
Subject
General Materials Science
Reference35 articles.
1. [1] Savolainen K., Backman U., Brouwer D., Fadeel B., Fernandes T., Kuhlbusch T., Landsiedel R., Lynch I., Pylkkanen L.(2013), Nanosafety in Europe 2015-2025: Towards Safe and Sustainable Nanomaterials and Nanotechnology Innovations, EDITA, Helsinki 2013, ISBN 978-952-261-310-3.
2. [2] Linkov I. et al.(2009), Emerging methods and tools for environmental risk assessment, decision-making, and policy for nanomaterials: summary of NATO Advanced Research Workshop, Journal of Nanoparticle Research 11 (2009) 513-527.
3. [3] Warheit D.B., Sayes Ch.M., Reed K.L., Swain K.A.(2008), Health effects related to nanoparticle exposures: environmental, health and safety considerations for assessing hazards and risks, Pharmacology and therapeutics, 120,35-42, 2008.
4. [4] Brouwer D., Van Duuren-Stuurman B., Berges M., Jankowska E., Bard D., Mark D.(2009), From workplace air measurement results toward estimates of exposure? Development of a strategy to assess exposure to manufactured nano-objects. J Nanopart Res. 2009;11(8):1867-1881. DOI 10.1007/s11051-009-9772-1.
5. [5] Friedrichs S., Schulte J. (2007), Environmental, health and safety aspects of nanotechnology implications for the R&D in (small) companies, Science and Technology of Advanced Materials 8 (2007) 12-18.
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