Polymer Brush‐Functionalized MoS2 as a Water‐Based Lubricant Additive DOI Open Access
Haohao Ren, Houdun Zeng,

Chufeng Sun

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract Water‐based lubricants have the advantages of low cost, easy cleaning, and environmental friendliness, are suitable for various lubrication applications. However, limited tribological properties pure water‐based restrict their use. To improve these properties, additives can be employed. Molybdenum disulfide (MoS 2 ) is widely used in tribology because its stability, corrosion resistance, wear but it has poor dispersion water. address this, MoS functionalized with poly(3‐sulfopropyl methacrylate potassium salt) +PSPMA) successfully prepared by grafting polymer brushes onto using ultraviolet light. The results show that +PSPMA exhibits significantly better stability water compared to unmodified . Additionally, demonstrates superior as a additive. During reciprocating friction, disperses effectively water, forming protective film on surface reduces friction. As an additive, indicates good friction coefficient positioning promising candidate future lubricants.

Language: Английский

Effect of hBN/MoS2 hybrid nanofluid minimum quantity lubrication on the cutting performance of self-lubricating ceramic tools when machining AISI 4340 DOI
Lei Zhao, Hui Chen, Jingjie Zhang

et al.

Tribology International, Journal Year: 2024, Volume and Issue: 201, P. 110249 - 110249

Published: Sept. 16, 2024

Language: Английский

Citations

4
Effect of surfactant concentration on dispersing mechanism of aqueous particle/surfactant suspension system prepared by ultrasonication DOI
Haruhisa Kato,

Ayako Nakamura

Powder Technology, Journal Year: 2025, Volume and Issue: 454, P. 120700 - 120700

Published: Jan. 29, 2025

Language: Английский

Citations

0
Robust Composites Based on Silicone Rubber for Self-Powered Piezoelectric Nanogenerators DOI Open Access
Vineet Kumar, Md Najib Alam, Siraj Azam

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 977 - 977

Published: April 3, 2025

Obtaining robust power density through piezoelectric nanogenerators (PENGs) is very challenging. Challenges include achieving good mechanical stability, optimum stiffness, reasonable voltage generation, limited heat dissipation, and as needed. This work focused exactly on these areas, hybrid filler emerged a promising candidate among the composites studied. For example, fillers exhibited optimized properties suitable for self-powered engineering applications. The fabricated in this were based titanium oxide (TiO2), molybdenum disulfide (MoS2), silicone rubber (SR) host matrix. results showed that TiO2 represents reinforcing filler, while MoS2 exerts lubricating effect, improving composites' strength elongation at break. compressive modulus 8 per hundred parts of (phr) was 2.39 MPa 1.62 2.1 (hybrid filler). Similarly, hysteresis loss 5 phr 20.09 J/m 21.56 20.48 Moreover, break 150% 194% 170% In same way, electro-mechanical obtained also robust. output ~22 mV ~35 ~46 PENGs developed generated power. ~0.55 pW/cm2 ~1.03 ~1.56 Finally, coefficient 40 pC/N 112 160 These materials have role energy harvesting portable electronic systems. low-power provide cost-effective management circuits. allows to contribute sustainable self-sufficient systems like pacemaker implants.

Language: Английский

Citations

0
Fluorinated graphene intercalated by carbon quantum dots: Triple effect for reducing friction and wear DOI
Ding Wang, Xiaohua Jia, Jin Yang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162393 - 162393

Published: April 1, 2025

Language: Английский

Citations

0
Ionic-Liquid-Mimetic Surface Engineering of WS2 Nanosheets via Amine-Phosphate Functionalization for Enhanced Tribological Performance DOI
Xiaole Zhang, Xuteng Zhao, Qiang‐Qiang Jia

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Eco-friendly two-dimensional (2D) nanolubricants have emerged as promising candidates for advanced functional materials. However, challenges such poor dispersion stability and weak interfacial adhesion limit their widespread application. Herein, we developed a method to tailor WS2 nanosheets functionalized with γ-aminopropyltriethoxysilane (γ-APS), enhancing interaction phosphate ester groups from di(2-ethylhexyl) (DEPS), which leads the creation of gel-like WS2-NH-DEPS additives excellent dispersive tribological properties in polyalphaolefin (PAO6). Specifically, 0.5 wt % WS2-NH-DEPS/PAO6 achieves reduction ∼40% coefficient friction (COF) decrease ∼70% wear scar diameter (WSD) compared pure PAO6. Surface analysis reveals that unique structure exfoliated synergistic interactions phosphonate facilitate formation hybrid protective film composed embedded nanosheets, phosphoric acid compounds, other oxides FeOX, FeNOX, FeSOX enhance performance, providing essential insights developing nanomaterial-based lubricants mechanical systems.

Language: Английский

Citations

0
Enhancing engine oil performance with graphene-cellulose nanoparticles: insights into thermophysical properties and tribological behavior DOI Creative Commons
Jasem Ghanem Alotaibi,

Ayedh Eid Alajmi,

K. Kadirgama

et al.

Frontiers in Materials, Journal Year: 2025, Volume and Issue: 12

Published: May 6, 2025

This study explores the development and optimization of a novel nano lubricant by incorporating graphene-cellulose nanoparticles into SAE 10W-40 engine oil to enhance its thermophysical tribological performance. The lubricants were prepared with varying concentrations (0.01%, 0.03%, 0.05% volume) subjected comprehensive evaluation their thermal conductivity, dynamic viscosity, properties under operational conditions. conductivity analysis demonstrated that inclusion improved heat transfer capabilities, particularly at higher concentrations, while maintaining stability over wide temperature range (30°C–90°C). viscosity measurements revealed synergistic effect graphene cellulose, enhancing dispersion lubrication characteristics, optimal performance achieved 0.03% concentration. Tribological testing confirmed significant reduction in coefficient friction, achieving value as low 0.0406, demonstrating wear resistance. Response Surface Methodology was employed optimize input parameters, providing insights interactions between concentration, load, speed, temperature. findings highlight potential nanocomposites sustainable, high-performance additives for automotive lubricants, paving way energy-efficient durable applications industrial sectors.

Language: Английский

Citations

0
Review of epoxy nano-filled hybrid nanocomposite coatings for tribological applications DOI Creative Commons
Mohammed Fuseini, Moustafa Mahmoud Yousry Zaghloul,

Djibrine Abakar

et al.

FlatChem, Journal Year: 2024, Volume and Issue: 49, P. 100768 - 100768

Published: Nov. 2, 2024

Language: Английский

Citations

2
Exfoliated MoS2 with tunable size effect towards anticorrosion application DOI
Kuilin Lv,

Huachao Ma,

Xiaogen Liu

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1005, P. 176225 - 176225

Published: Aug. 29, 2024

Language: Английский

Citations

1
Polymer Brush‐Functionalized MoS2 as a Water‐Based Lubricant Additive DOI Open Access
Haohao Ren, Houdun Zeng,

Chufeng Sun

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract Water‐based lubricants have the advantages of low cost, easy cleaning, and environmental friendliness, are suitable for various lubrication applications. However, limited tribological properties pure water‐based restrict their use. To improve these properties, additives can be employed. Molybdenum disulfide (MoS 2 ) is widely used in tribology because its stability, corrosion resistance, wear but it has poor dispersion water. address this, MoS functionalized with poly(3‐sulfopropyl methacrylate potassium salt) +PSPMA) successfully prepared by grafting polymer brushes onto using ultraviolet light. The results show that +PSPMA exhibits significantly better stability water compared to unmodified . Additionally, demonstrates superior as a additive. During reciprocating friction, disperses effectively water, forming protective film on surface reduces friction. As an additive, indicates good friction coefficient positioning promising candidate future lubricants.

Language: Английский

Citations

1