Particle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocomposites

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dc.contributor.authorBlazquez, María
dc.contributor.authorMarchante, Veronica
dc.contributor.authorGendre, Laura
dc.contributor.authorStarost, Kristof
dc.contributor.authorNjuguna, James
dc.contributor.authorSchutz, Jurg A.
dc.contributor.authorLacave, José María
dc.contributor.authorEgizabal, Ainhoa
dc.contributor.authorElizetxea, Cristina
dc.contributor.authorCajaraville, Miren P.
dc.date.accessioned2021-02-08T15:12:18Z
dc.date.available2021-02-08T15:12:18Z
dc.date.issued2020-08-14
dc.description.abstractResearchers and legislators have both claimed the necessity to standardize the exposure assessment of polymer nanocomposites throughout their life cycle. In the present study we have developed and compared three different and independent operational protocols to investigate changes in particle emission behavior of mechanically degraded polypropylene (PP) samples containing different fillers, including talc and two types of nanoclays (wollastonite-WO- and montmorillonite-MMT-) relative to not reinforced PP. Our results have shown that the mechanical degradation of PP, PP-Talc, PP-WO and PP-MMT samples causes the release of nano-sized particles. However, the three protocols investigated, simulating industrial milling and drilling and household drilling, have produced different figures for particles generated. Results suggest that it is not possible to describe the effects of adding nano-sized modifiers to PP by a single trend that applies consistently across all different protocols. Differences observed might be attributed to a variety of causes, including the specific operational parameters selected for sample degradation and the instrumentation used for airborne particle release characterization. In particular, a streamlined approach for future assessments providing a measure for released particles as a function of the quantity of removed material would seem useful, which can provide a reference benchmark for the variations in the number of particles emitted across a wider range of different mechanical processes.en_UK
dc.identifier.citationBlazquez M, Marchante V, Gendre L, et al., (2020) Particle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocomposites. Journal of Aerosol Science, Volume 150, December 2020, Article number 105629en_UK
dc.identifier.issn0021-8502
dc.identifier.urihttps://doi.org/10.1016/j.jaerosci.2020.105629
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16306
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectPolymer nanocompositeen_UK
dc.subjectNanoclaysen_UK
dc.subjectMechanical degradationen_UK
dc.subjectParticle emissionen_UK
dc.subjectExposure assessmenten_UK
dc.titleParticle emission measurements in three scenarios of mechanical degradation of polypropylene-nanoclay nanocompositesen_UK
dc.typeArticleen_UK

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