PEGlated graphene as nanoadditive for enhancing the tribological properties of water-based lubricants

Hu, Yiwen; Wang, Yongxin; Zeng, Zhixiang; Zhao, Haichao; Ge, Xinlei; Wang, Kai; Wang, Liping; Xue, Qunji

doi:10.1016/j.carbon.2018.05.009

Cited by 73 publications

(35 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Considering that countless losses are caused by friction and wear [2,3], the most direct and effective method is to add a lubricant between friction pairs to avoid direct contact between them [4]. Water-based lubricants are widely used in the fields of mechanical lubrication, cutting fluids, and hydraulic fluids owing to their excellent cooling and flame retardant properties as well as their higher safety and lower pollution than oil-based lubricants [5][6][7]. However, traditional pure water lubricants have gradually failed to meet the requirements of particular applications.…”

Section: Introductionmentioning

confidence: 99%

Regulating the Nb2C nanosheets with different degrees of oxidation in water lubricated sliding toward an excellent tribological performance

Cheng

Zhao

2021

Friction

View full text Add to dashboard Cite

Novel two-dimensional (2D) Nb2C nanosheets were successfully prepared through a simple lultrasonic and magnetic stirring treatment from the original accordion-like powder. To further study their water-lubrication properties and deal with common oxidation problems, Nb2C nanosheets with different oxidation degrees were prepared and achieved long-term stability in deionized water. Scanning electron microscope (SEM), transmission electron microscope (TEM), scanning probe microscope (SPM), X-ray powder diffraction (XRD), Raman, and X-ray photoelectron spectrometer (XPS) experiments were utilized to characterize the structure, morphology, and dispersion of Nb2C nanosheets with different degrees of oxidation. The tribological behaviors of Nb2C with different degrees of oxidation as additives for water lubrication were characterized using a UMT-3 friction testing machine. The wear scars formed on the 316 steel surface were measured using three-dimensional (3D) laser scanning confocal microscopy. The tribological results showed that a moderately oxidized Nb2C nanosheet, which owned the composition of Nb2C/Nb2O5/C, displayed excellent tribological performance, with the friction coefficient (COF) decreasing by 90.3% and a decrease in the wear rate by 73.1% compared with pure water. Combining the TEM and Raman spectra, it was shown that Nb2O5 nanoparticles filled in the worn zone, and the layered Nb2C and C were adsorbed into the surface of the friction pair to form a protective lubricating film. This combined action resulted in an excellent lubricating performance.

show abstract

Section: Introductionmentioning

confidence: 99%

Regulating the Nb2C nanosheets with different degrees of oxidation in water lubricated sliding toward an excellent tribological performance

Cheng

Zhao

2021

Friction

View full text Add to dashboard Cite

show abstract

“…The thick tribo-film of 150 nm corresponds to superior performance of BNNS-1. Also, having some wear debris on the worn surface as black pits can prove that the wear mechanism was abrasive [172]. For better understanding the role of BNNS, as shown in Figure 20i, we can consider them as a high-velocity rail which provides BNNS-1, simultaneously the oil molecules bring BNNS-1 and introduce them to the rubbing interface, leading to formation of a thick tribo-film.…”

Section: Lubrication Additivementioning

confidence: 99%

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

et al. 2020

View full text Add to dashboard Cite

Ever-increasing significance of composite materials with high thermal conductivity, low thermal expansion coefficient and high optical bandgap over the last decade, have proved their indispensable roles in a wide range of applications. Hexagonal boron nitride (h-BN), a layered material having a high thermal conductivity along the planes and the band gap of 5.9 eV, has always been a promising candidate to provide superior heat transfer with minimal phonon scattering through the system. Hence, extensive researches have been devoted to improving the thermal conductivity of different matrices by using h-BN fillers. Apart from that, lubrication property of h-BN has also been extensively researched, demonstrating the effectivity of this layered structure in reduction of friction coefficient, increasing wear resistance and cost-effectivity of the process. Herein, an in-depth discussion of thermal and tribological properties of the reinforced composite by h-BN will be provided, focusing on the recent progress and future trends.

show abstract

“…A clear yellow thick liquid (PEG-NH 2 , 24.3 g, M w ¼ 985.23 Da) was obtained aer drying in vacuum. 37,38 Fabrication of membranes PEGylated PVDF/GO membranes were fabricated via a surface graing method as shown in Scheme 1. PVDF/GO blended membranes were prepared by non-solvent induced phase separation (NIPS).…”

Section: Synthesis Of Peg-nhmentioning

confidence: 99%

PEGylated polyvinylidene fluoride membranesviagrafting from a graphene oxide additive for improving permeability and antifouling properties

Chen

Zhang

et al. 2019

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

PEGlated graphene as nanoadditive for enhancing the tribological properties of water-based lubricants

Cited by 73 publications

References 45 publications

Regulating the Nb2C nanosheets with different degrees of oxidation in water lubricated sliding toward an excellent tribological performance

Regulating the Nb2C nanosheets with different degrees of oxidation in water lubricated sliding toward an excellent tribological performance

Recent Progress in the Study of Thermal Properties and Tribological Behaviors of Hexagonal Boron Nitride-Reinforced Composites

PEGylated polyvinylidene fluoride membranesviagrafting from a graphene oxide additive for improving permeability and antifouling properties

Contact Info

Product

Resources

About