The Current Situation and Future Direction of Nanoparticles Lubricant Additives in China

Han, Kun; Zhang, Yujuan; Song, Ningning; Yu, Laigui; Zhang, Pingyu; Zhang, Zhijun; Qian, Lei; Zhang, Shengmao

doi:10.3390/lubricants10110312

Cited by 10 publications

(6 citation statements)

References 234 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is where the prospect of developing multifunctional additives comes as a game-changer. Advances in multifunctional lubricant additives are progressing, which are driven not only by new materials/molecules [174] and improved properties of existing materials by functionalization [175], but also by new approaches to combine the functional materials [176].…”

Section: Compatibility Of Carbon Tribofilms With Other Lubricant Addi...mentioning

confidence: 99%

Tribocatalysis Induced Carbon-Based Tribofilms—An Emerging Tribological Approach for Sustainable Lubrications

2023

View full text Add to dashboard Cite

To comply with the high demand for efficient and sustainable lubrications, carbon-based tribofilms and/or nanomaterials have emerged as a potential solution that can resolve the current major shortcomings of phosphorus- and sulphur-rich tribofilms and protective coatings. Although their employment is still in the early stages of realization and research, these tribofilms receive significant interest due to their capability to continuously and in situ repair/replenish themselves during sliding, which has been an ultimate goal of all moving mechanical systems. Structurally, these tribofilms are complex and predominantly amorphous or disordered with/without graphitic domains (e.g., graphene/graphite, onion-like carbon, etc.). Chemically, the compositions of these tribofilms vary significantly with environments, conditions, and material precursors. Yet, the structural properties of carbon-based tribofilms remain largely ambiguous, which precludes a full understanding of the mechanisms underlying the formation and lubrication performance. This review will summarize the current state-of-art research about the in situ carbon-based tribofilms that have been published since the pioneering works. Particularly, this work will highlight the recent approaches to generate these tribofilms, their associated lubrication performance, current understanding of the formation mechanics, common analytical approaches for these tribofilms, and the compatibility of these tribofilms with other additives. Together, the overall outlooks will be drawn, demonstrating the knowledge gaps and proposing further investigation tactics to tackle these emerging issues.

show abstract

Section: Compatibility Of Carbon Tribofilms With Other Lubricant Addi...mentioning

confidence: 99%

Tribocatalysis Induced Carbon-Based Tribofilms—An Emerging Tribological Approach for Sustainable Lubrications

2023

View full text Add to dashboard Cite

show abstract

“…Although C 60 did not subsequently become established as a commercial lubricant additive, the opportunities to reduce macroscale friction using nanoscale additives have sparked intense interest among researchers and industry [2][3][4]. This interest is driven by the importance of tribology and energy efficiency to the burgeoning financial and environmental costs of global energy consumption [5][6][7][8] and the demand for the replacement of fossil fuel lubricants with environmentally friendly and degradable materials [6,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Highlights were selected to demonstrate a range of experimental and theoretical research, to provide direct connections between the nanoscale and macroscale tribological attributes, and, when possible, to emphasize environmentally friendly materials such as water-based nanofluids. Given the very limited number of highlights presented here, additional in-depth and extensive topical review articles are also included in the references for follow-up reading and background material [2][3][4]10,14,.…”

Section: Introductionmentioning

confidence: 99%

Fundamental Mechanisms Underlying the Effectiveness of Nanoparticle Additives to Lubricants: 25 Examples Linking Nano- to Macroscale Friction

Krim,

Smirnov

2024

Lubricants

View full text Add to dashboard Cite

Studies of the fundamental origins of friction have undergone rapid acceleration in recent years by providing valuable information on the nanoscale mechanisms responsible for friction at the macroscopic level. Significant efforts have been directed at developing composite nanofluids and nanoparticle additives to unlock new tribological properties unattainable by traditional lubricants. The studies are now further evolving by developing methods to achieve active control over nano- and/or mesoscale friction through the application of magnetic and electric fields external to the contact. These methods constitute an area of rapidly growing interest, and they also illuminate how the performance of conventional lubricants could be enhanced through the synergistic addition of nanoparticles (NPs). This mini review highlights 25 publications that collectively reveal significant progress, as well as important outstanding challenges, to the fundamental understanding of how the addition of NPs impacts lubricant performance. The first two topics focus on how Quartz Crystal Microbalance (QCM) nanotribological response to solid contacts can be linked to macroscale friction coefficients in the boundary lubrication regime and how QCM response upon immersion into a liquid is linked to macroscale lubricity in the mixed and hydrodynamic regimes. The third and fourth topics highlight the pivotal role of nanoparticle charge and surface treatments, while also indicating that the rolling of nanoparticles is ineffective and/or detrimental. The fifth topic focuses on applications that demonstrate the tuning of friction by varying nanoparticle electric charge and/or an external electric potential. The highlighted literature was selected to demonstrate a range of experimental and theoretical research, to provide direct connections between the nanoscale and macroscale tribological attributes, and to emphasize environmentally friendly lubricating materials such as water-based nanofluids.

show abstract

“…Numerous studies have been conducted recently to assess the potential for a variety of inorganic nanoparticles to act as additive agents for lubricating oil 22 due to the distinctive advantages of the particular lamellar structure and the effective dispersion of nanoparticles. Due to their outstanding capabilities, nanoparticles are increasingly being used as lubricant additives 23 , 24 where they are able to enter the friction area and fill the micro-roughness because of their small diameters (2–100 nm) 25 . This process prevents the friction surface from coming into direct touch with one another 26 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of newly copolymers and their montmorillonite nanocomposite as cold flow improver for petroleum lubricating oil

El-Bahnasawi,

El-Segaey,

Albohy

et al. 2023

Sci Rep

View full text Add to dashboard Cite

The great demand on the energy makes the attention toward modifying lubricating oil. This work tends to prepare the following copolymers; octadecylmethacrylate-co-dodecene (CP1) and octadecylmethacrylate-co-hexadecene (CP2) by free radical solution polymerization using laboratory prepared octadecylmethacrylate monomer with either 1-dodecene or 1-hexadecene. The same monomers also used to prepare their polymers nanocomposite (NP1, NP2) with 1% of nanomontmorolonite by emulsion polymerization. The structures of the prepared polymers and their nanocomposite were elucidated by FTIR, 1HNMR, TGA, DSC, TEM and DLS. These polymers were used as pour point depressant, flow improver and viscosity modifier and showed high efficiency. After comparison of the data of the polymers and their nanocomposite, the nanocomposite give the best results where the pour point decreased from 0 °C to − 18, − 27, − 24 and − 33 °C for CP1, CP2, NP1 and NP2 respectively at the optimum concentration 10,000 ppm. On the other hand the viscosity index increased from 86.57 to 93.25, 92.41, 94.17 and 93.103 for CP1, CP2, NP1 and NP2 respectively, the apparent viscosity increased from 55.863 to 69.31, 119.41, 111.28, and 166.89 cP also the yield stress increased from 652.19 to 1076.3, 1074 and 1480 D/cm2 for CP1, CP2, NP1 and NP2 respectively.

show abstract

The Current Situation and Future Direction of Nanoparticles Lubricant Additives in China

Cited by 10 publications

References 234 publications

Tribocatalysis Induced Carbon-Based Tribofilms—An Emerging Tribological Approach for Sustainable Lubrications

Tribocatalysis Induced Carbon-Based Tribofilms—An Emerging Tribological Approach for Sustainable Lubrications

Fundamental Mechanisms Underlying the Effectiveness of Nanoparticle Additives to Lubricants: 25 Examples Linking Nano- to Macroscale Friction

Evaluation of newly copolymers and their montmorillonite nanocomposite as cold flow improver for petroleum lubricating oil

Contact Info

Product

Resources

About