Friction coefficient dependence on electrostatic tribocharging

dc.creatorBurgo, TAL
dc.creatorSilva, CA
dc.creatorBalestrin, LBS
dc.creatorGalembeck, F
dc.date2013
dc.dateAUG 12
dc.date2014-07-30T17:37:10Z
dc.date2015-11-26T17:43:21Z
dc.date2014-07-30T17:37:10Z
dc.date2015-11-26T17:43:21Z
dc.date.accessioned2018-03-29T00:25:25Z
dc.date.available2018-03-29T00:25:25Z
dc.identifierScientific Reports. Nature Publishing Group, v. 3, 2013.
dc.identifier2045-2322
dc.identifierWOS:000322955400001
dc.identifier10.1038/srep02384
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67196
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67196
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287568
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFriction 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.
dc.description3
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherNature Publishing Group
dc.publisherLondon
dc.publisherInglaterra
dc.relationScientific Reports
dc.relationSci Rep
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectAtomic-force Microscopy
dc.subjectLateral Force
dc.subjectContact Electrification
dc.subjectPolymeric Materials
dc.subjectCalibration Method
dc.subjectRolling Friction
dc.subjectStatic Friction
dc.subjectDistance Curves
dc.subjectNanometer-scale
dc.subjectCharge Buildup
dc.titleFriction coefficient dependence on electrostatic tribocharging
dc.typeArtículos de revistas


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