Assessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocomposites

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dc.contributor.authorStarost, Kristof
dc.contributor.authorFrijns, Evelien
dc.contributor.authorVan Laer, Jo
dc.contributor.authorFaisal, Nadimul
dc.contributor.authorEgizabal, Ainhoa
dc.contributor.authorElizetxea, Cristina
dc.contributor.authorBlazquez, Maria
dc.contributor.authorNelissen, Inge
dc.contributor.authorNjuguna, James
dc.contributor.authorElizextea, Cristina
dc.contributor.institutionBiomateriales
dc.contributor.institutionPOLIMEROS
dc.date.issued2017-10-15
dc.descriptionPublisher Copyright: © 2017 Elsevier B.V.
dc.description.abstractThe risk assessment, exposure and understanding of the release of embedded carbon nanotubes (CNTs) and carbon nanofibers (CNFs) from commercial high performance composites during machining processes are yet to be fully evaluated and quantified. In this study, CNTs and CNFs were dispersed in epoxy matrix through calendaring process to form nanocomposites. The automated drilling was carried out in a specially designed drilling chamber that allowed elimination of background noise from the measurements. Emission measurements were taken using condensed particle counter (CPC), scanning mobility particle sizer (SMPS) and DMS50 Fast Particulate Size Spectrometer. In comparison to the neat epoxy, the study results revealed that the nano-filled samples produced an increase of 102% and 227% for the EP/CNF and EP/CNT sample respectively in average particle number concentration emission. The particle mass concentration indicated that the EP/CNT and EP/CNF samples released demands a vital new perspective on CNTs and CNFs embedded within nanocomposite materials to be considered and evaluated for occupational exposure assessment. Importantly, the increased concentration observed at 10 nm aerosol particle sizes measurements strongly suggest that there are independent CNTs being released at this range.en
dc.description.statusPeer reviewed
dc.format.extent10
dc.format.extent1154482
dc.identifier.citationStarost , K , Frijns , E , Van Laer , J , Faisal , N , Egizabal , A , Elizetxea , C , Blazquez , M , Nelissen , I , Njuguna , J & Elizextea , C 2017 , ' Assessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocomposites ' , Journal of Hazardous Materials , vol. 340 , pp. 57-66 . https://doi.org/10.1016/j.jhazmat.2017.06.057
dc.identifier.doi10.1016/j.jhazmat.2017.06.057
dc.identifier.issn1873-3336
dc.identifier.otherresearchoutputwizard: 11556/434
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85023597886&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofJournal of Hazardous Materials
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsNanoparticle release
dc.subject.keywordsCarbon nanotubes
dc.subject.keywordsCarbon nanofibers
dc.subject.keywordsDrilling emissions
dc.subject.keywordsNanoparticle release
dc.subject.keywordsCarbon nanotubes
dc.subject.keywordsCarbon nanofibers
dc.subject.keywordsDrilling emissions
dc.subject.keywordsEnvironmental Engineering
dc.subject.keywordsEnvironmental Chemistry
dc.subject.keywordsWaste Management and Disposal
dc.subject.keywordsPollution
dc.subject.keywordsHealth, Toxicology and Mutagenesis
dc.subject.keywordsFunding Info
dc.subject.keywordsThe work is funded by and part of the European Commission_x000D_ Life project named Simulation of the release of nanomaterials_x000D_ from consumer products for environmental exposure assessment_x000D_ (SIRENA, Pr. No. LIFE 11 ENV/ES/596). We are also thankful to the_x000D_ funding by QualityNano Project through Transnational Access (TA_x000D_ Application VITO-TAF-382 and VITO-TAF-500) under the European_x000D_ Commission, Grant Agreement No: INFRA-2010-262163 for the_x000D_ access and use of the facilities at the Flemish Institute for Technological_x000D_ Research (VITO). The authors would like to acknowledge_x000D_ K. Tirez and R. Persoons at Vito for their XRF and SEM support._x000D_ Kristof Starost is also thankful for partial funding by the School of_x000D_ Engineering for his studentship.
dc.subject.keywordsThe work is funded by and part of the European Commission_x000D_ Life project named Simulation of the release of nanomaterials_x000D_ from consumer products for environmental exposure assessment_x000D_ (SIRENA, Pr. No. LIFE 11 ENV/ES/596). We are also thankful to the_x000D_ funding by QualityNano Project through Transnational Access (TA_x000D_ Application VITO-TAF-382 and VITO-TAF-500) under the European_x000D_ Commission, Grant Agreement No: INFRA-2010-262163 for the_x000D_ access and use of the facilities at the Flemish Institute for Technological_x000D_ Research (VITO). The authors would like to acknowledge_x000D_ K. Tirez and R. Persoons at Vito for their XRF and SEM support._x000D_ Kristof Starost is also thankful for partial funding by the School of_x000D_ Engineering for his studentship.
dc.titleAssessment of nanoparticles release into the environment during drilling of carbon nanotubes/epoxy and carbon nanofibres/epoxy nanocompositesen
dc.typejournal article
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