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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleFriction coefficient dependence on electrostatic tribochargingpt_BR
dc.contributor.authorBurgo, TALpt_BR
dc.contributor.authorSilva, CApt_BR
dc.contributor.authorBalestrin, LBSpt_BR
dc.contributor.authorGalembeck, Fpt_BR
unicamp.author.emailfernagal@iqm.unicamp.brpt_BR
unicamp.authorBurgo, Thiago A. L. Silva, Cristiane A. Balestrin, Lia B. S. Galembeck, Fernando Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP, Brazilpt_BR
unicamp.authorGalembeck, Fernando Natl Nanotechnol Lab, BR-13083970 Campinas, SP, Brazilpt_BR
unicamp.authorGalembeck, Fernando Natl Ctr Energy & Mat Res, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subject.wosAtomic-force Microscopypt_BR
dc.subject.wosLateral Forcept_BR
dc.subject.wosContact Electrificationpt_BR
dc.subject.wosPolymeric Materialspt_BR
dc.subject.wosCalibration Methodpt_BR
dc.subject.wosRolling Frictionpt_BR
dc.subject.wosStatic Frictionpt_BR
dc.subject.wosDistance Curvespt_BR
dc.subject.wosNanometer-scalept_BR
dc.subject.wosCharge Builduppt_BR
dc.description.abstractFriction between dielectric surfaces produces patterns of fixed, stable electric charges that in turn contribute electrostatic components to surface interactions between the contacting solids. The literature presents a wealth of information on the electronic contributions to friction in metals and semiconductors but the effect of triboelectricity on friction coefficients of dielectrics is as yet poorly defined and understood. In this work, friction coefficients were measured on tribocharged polytetrafluoroethylene (PTFE), using three different techniques. As a result, friction coefficients at the macro- and nanoscales increase many-fold when PTFE surfaces are tribocharged, but this effect is eliminated by silanization of glass spheres rolling on PTFE. In conclusion, tribocharging may supersede all other contributions to macro- and nanoscale friction coefficients in PTFE and probably in other insulating polymers.pt
dc.relation.ispartofScientific Reportspt_BR
dc.relation.ispartofabbreviationSci Reppt_BR
dc.publisher.cityLondonpt_BR
dc.publisher.countryInglaterrapt_BR
dc.publisherNature Publishing Grouppt_BR
dc.date.issued2013pt_BR
dc.date.monthofcirculationAUG 12pt_BR
dc.identifier.citationScientific Reports. Nature Publishing Group, v. 3, 2013.pt_BR
dc.language.isoenpt_BR
dc.description.volume3pt_BR
dc.rightsabertopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn2045-2322pt_BR
dc.identifier.wosidWOS:000322955400001pt_BR
dc.identifier.doi10.1038/srep02384pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.date.available2014-07-30T17:37:10Z
dc.date.available2015-11-26T17:43:21Z-
dc.date.accessioned2014-07-30T17:37:10Z
dc.date.accessioned2015-11-26T17:43:21Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T17:37:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:43:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2013en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67196
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67196-
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