Design and tribological performance of graphene nanofluids dispersed by dragging effect of bicomponent gelator

Nanotechnology, Journal Year: 2024, Volume and Issue: 35(26), P. 265709 - 265709

Published: March 10, 2024

Abstract Nanofluids have excellent lubrication and high thermal conductivity. However, the agglomeration sedimentation produced by large surface energy of nanoparticles in base liquid threaten long-term dispersion stability impact wide application nanofluid. In this work, based on self-assemble behavior continuous network structure formed low molecular weight organic gelator, uniform clusters were through regulating kinetics gelling process. The dragging effect was demonstrated oleic acid - sodium dodecyl sulfate (OA-SDS) bicomponent gelator graphene oxide (GO) nanosheets. results showed that GO nanofluids dispersed OA-SDS stable for more than 12 months. well-dispersed nanofluid exhibited better anti-friction anti-wear properties under both immersion electrostatic minimum quantity conditions. Moreover, lower contact angle, tension droplet size after charging improved wettability frictional interface. adsorption film friction interface protected tribochemical reaction iron prevented occurrence sintering oil.

Language: Английский

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Photothermal COFs with donor–acceptor structure for friction reduction and antiwear

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(44), P. 5695 - 5698

Published: Jan. 1, 2024

A new concept of donor–acceptor structured covalent organic framework with excellent photo-thermal conversion property is reported, which possesses robust dispersing stability in various oils, and reliable lubrication for more than 10 800 cycles.

Language: Английский

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Hydrophobic and Tribological Properties of Biomimetic Interfaces

Coatings, Journal Year: 2024, Volume and Issue: 14(5), P. 529 - 529

Published: April 24, 2024

Bionic interfaces have received much attention owing to their attractive hydrophobic and tribological potential. Although a great deal of research has been carried out on biomimetic nanostructures, the basic theory, experimental application, related techniques hydrophobicity as well relationship between state lubricants friction in tribology not fully explored. In this review, based brief discussion theory hydrophobicity, role two-dimensional bionic structures wet is introduced, wetting mechanism applications are discussed. Then, synergistic effects mechanisms weaving dry/wet investigated. addition, contribution fields further deepens knowledge enriches practical surface weaving.

Language: Английский

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Ultraslippery Surface for Efficient Fog Harvesting and Anti‐Icing/Fouling

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

The conventional Slippery Liquid Infused Porous Surface (SLIPS) encounters challenges such as silicone oil leakage and complex manufacturing of rough substrate structures. Thus, it is crucial to develop a lubricant that highly adaptable less prone loss for surface structures; temperature-controlled method infusing oleogel into superhydrophobic (SHS) presented in this paper. This approach draws inspiration from the characteristics Nepenthes pitcher plant structures, albeit without need intricate pore-making or nanowire It demonstrated resulting has exceptional fog harvesting capability, with efficiency 0.3222 g cm

Language: Английский

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Biomimetic joints inspired soft and hard combined 2D diamond solvent-free nanofluids with multi-layer structure for superior lubrication

Carbon, Journal Year: 2024, Volume and Issue: 230, P. 119692 - 119692

Published: Oct. 9, 2024

Language: Английский

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