Contribution of meniscus force to friction of multi-asperity sliding contact

Gao, Tianyan; Zhang, Kaisen; Wang, Yijian; Liu, Kun; Liu, Xiaojun; Ye, Jiaxin

doi:10.1016/j.triboint.2022.107994

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…The measured forces from the AFM force curves are larger for either pristine SiO 2 or OTS-functionalized SiO 2 colloid probes interacting with CA films than those predicted by the XDLVO theory, probably due to the existence of capillary forces. 92,93 Figure 7a,b shows a close fit of the XDLVO model to the electrostatic double-layer forces. This suggests that the interactions of pristine and 3% OTS-functionalized SiO 2 colloid probes with CA are contributed mainly by electrostatic double-layer force, regardless of the degree of substitution.…”

Section: ■ Results and Discussionmentioning

confidence: 77%

“…In comparison, as the concentration of functionalizing OTS onto SiO 2 colloid probes increases to 5 (Figure c) and 6% (Figure d), attractive interactions are observed in the XDLVO model. The measured forces from the AFM force curves are larger for either pristine SiO 2 or OTS-functionalized SiO 2 colloid probes interacting with CA films than those predicted by the XDLVO theory, probably due to the existence of capillary forces. , …”

Section: Resultsmentioning

confidence: 78%

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Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles

Wang

Zhang

et al. 2023

Langmuir

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It is significant to understand the interfacial interactions involved between the cellulose acetate (CA) and dispersed nanomaterials, in which the enhanced interaction improves the mechanical behavior of CA. In this work, the amendments of CA with SiO 2 nanoparticles have been found to be endowed by grafting varying concentrations (0, 3, 5, and 6%) of octadecyltrichlorosilane (OTS). Aided by SiO 2 colloid probe atomic force microscopy (AFM with a probe diameter of 20 μm), the adhesion force between CA and SiO 2 is found to be programmable by tuning OTS concentrations functionalized onto SiO 2 surfaces. The adhesion forces of 5% OTSfunctionalized SiO 2 with CA are the strongest, followed by the ones of 0, 3, and 6% OTS, resulting in a smoother and denser morphology on the film with 5% OTS. The AFM-measured approaching force−distance curves have been further compared to predictions by the extended Derjaguin−Landau−Verwey−Overbeek (XDLVO) theory, in which the XDLVO force is summed as the Liftshitz−van der Waals force (F LW ), the electrostatic double-layer force (F EL ), and the acid−base interaction force (F AB ). F LW and F EL do not change significantly with OTS concentrations functionalized onto SiO 2 . However, F AB is sensitive to the functionalized OTS concentration onto SiO 2 and significantly contributes to the interaction force of the composite films with 5% OTS, promoting the formation of a smooth and dense surface feature with a considerable mechanical performance demonstrated by load−displacement curves from a nanoindenter. This is highly encouraging and suggests that nanomaterials can be incorporated into CA to effectively improve their mechanical compatibility by programming the interaction between the CA matrix and nanomaterials.

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Section: ■ Results and Discussionmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 78%

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles

Wang

Zhang

et al. 2023

Langmuir

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Mechanism of Friction Enhancement Induced by Nanoscale Liquid Film: A Brief Review

Gao,

Wang,

Chen

et al. 2024

Acta Mech. Solida Sin.

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Liquid Bridge Modulated Friction: From Millimeter to Nanometer

et al. 2023

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Contribution of meniscus force to friction of multi-asperity sliding contact

Cited by 4 publications

References 34 publications

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles

Mechanism of Friction Enhancement Induced by Nanoscale Liquid Film: A Brief Review

Liquid Bridge Modulated Friction: From Millimeter to Nanometer

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Contribution of meniscus force to friction of multi-asperity sliding contact

Cited by 4 publications

References 34 publications

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO2 Nanoparticles

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO2 Nanoparticles

Mechanism of Friction Enhancement Induced by Nanoscale Liquid Film: A Brief Review

Liquid Bridge Modulated Friction: From Millimeter to Nanometer

Contact Info

Product

Resources

About

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles

Programmable Interactions of Cellulose Acetate with Octadecyltrichlorosilane-Functionalized SiO₂ Nanoparticles