Tunable Friction Through Stimuli Responsive Hybrid Carbon Microspheres

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dc.authoridJohn, Vijay/0000-0001-5426-7585
dc.authoridButun Sengel, Sultan/0000-0001-7036-2224
dc.authoridPesika, Noshir/0000-0001-5017-4808
dc.contributor.authorOak, Shreyas
dc.contributor.authorPashazanusi, Leila
dc.contributor.authorSengel, Sultan B.
dc.contributor.authorOmarova, Marzhana
dc.contributor.authorHemstock, Jamie L.
dc.contributor.authorHe, Wei
dc.contributor.authorHe, Jibao
dc.date.accessioned2025-01-27T21:13:18Z
dc.date.available2025-01-27T21:13:18Z
dc.date.issued2019
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractWe explore the use of poly(N-isopropylacrylamide) (PNIPAm)-grafted carbon microspheres (CM) dispersed in water as a stimulus-responsive lubricant. A critical concentration between 3 and 5 mg/mL of PNIPAm-grafted CM is needed to achieve low friction (coefficient of friction similar to 0.04) at room temperature between borosilicate and silicon surfaces. An increase in the temperature of the system above the lower critical solution temperature (LCST) causes the aggregation of PNIPAm-grafted CM which leads to an increase in friction forces. The process is not immediately reversible unless the lubricant is sonicated so as to redisperse the aggregates. This work provides insight into the rolling friction mechanism and demonstrates the importance of particle singlets in achieving effective lubrication through a rolling mechanism.
dc.description.sponsorshipNational Science Foundation [1034175]; Directorate For Engineering; Div Of Chem, Bioeng, Env, & Transp Sys [1034175] Funding Source: National Science Foundation
dc.description.sponsorshipFunding from the National Science Foundation (Grant No. 1034175) is gratefully acknowledged. N.P. is also grateful to Dr. Jacob N. Israelachvili for his mentorship.
dc.identifier.doi10.1021/acs.langmuir.9b01820
dc.identifier.endpage15854
dc.identifier.issn0743-7463
dc.identifier.issue48
dc.identifier.pmid31389708
dc.identifier.scopus2-s2.0-85071752365
dc.identifier.scopusqualityQ1
dc.identifier.startpage15849
dc.identifier.urihttps://doi.org/10.1021/acs.langmuir.9b01820
dc.identifier.urihttps://hdl.handle.net/20.500.12428/28371
dc.identifier.volume35
dc.identifier.wosWOS:000500838500044
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofLangmuir
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.titleTunable Friction Through Stimuli Responsive Hybrid Carbon Microspheres
dc.typeArticle

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