Grease Composition and Properties

Lugt, Piet M.; Pallister, David M.

doi:10.1002/9781118483961.ch3

Cited by 6 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among the different types of greases, mineral oil-based grease is preferred due to its stable lubricating performance and costeffectiveness [2,3]. However, the use of nonbiodegradable mineral oil-based grease poses significant environmental concerns.…”

Section: Introductionmentioning

confidence: 99%

The Tribological Performance of Perfluoropolyether-Based Grease Biolubricant: A Bibliometric Analysis

Lee,

Hong,

Binti Mohamed Ariffin

et al. 2023

JTSE

View full text Add to dashboard Cite

In response to the growing demand for environmentally friendly grease preparations, this study conducts a bibliometric analysis to examine the research trends surrounding the application of perfluoropolyether (PFPE) based grease biolubricants from 2010 to 2019. The analysis, based on 66 publications extracted from Web of Science (WoS), aims to narrow down the scope of interest in exploring the adoption of PFPE-based grease biolubricants in automotive applications. The analysis reveals that Tribology Letters emerged as the most productive journal, publishing 44.1% of the total publications on this topic. Italy was the initial contributor to this research, but no further studies were conducted after 2010. While, Singapore emerged as one of the main contributors, with 27 publications over the years. Keyword analysis demonstrates that the "friction and wear" keyword exhibited high significance with a total link strength of 25, followed by "lubrication" and "PFPE" with a total link strength of 16. Overall, this bibliometric analysis provides valuable insights into the research trend of PFPE-based grease biolubricants. The findings highlight the need for further exploration and development of PFPE-based grease biolubricants for automotive applications.

show abstract

Section: Introductionmentioning

confidence: 99%

The Tribological Performance of Perfluoropolyether-Based Grease Biolubricant: A Bibliometric Analysis

Lee,

Hong,

Binti Mohamed Ariffin

et al. 2023

JTSE

View full text Add to dashboard Cite

show abstract

“…Grease lubrication consists of a thickener (such as lithium soap, calcium soap, polyurea), 70-97% base oil (synthetic or mineral oil), and 3% additives. The prominent role of the additives is to introduce or enhance specific properties, such as extreme pressure (EP) additives, anti-wear (AW) agents, oxidation inhibitors, and lubricity additives [16].…”

Section: Introductionmentioning

confidence: 99%

Impact of Graphene Nano-Additives to Lithium Grease on the Dynamic and Tribological Behavior of Rolling Bearings

Nassef

Soliman²,

Nassef

et al. 2022

Lubricants

View full text Add to dashboard Cite

In recent years, reduced graphene oxide (rGO) received considerable interest as a lubricant nano-additive for enhancing sliding and rolling contacts. This paper investigates the tribological and dynamic behavior of ball bearings lubricated by lithium grease at different weight percentages of rGO. Full bearing tests were conducted for experimental modal analysis, vibration analysis, ultrasonic analysis, and infrared thermography. Modal analysis indicated considerable improvements of the damping ratio values up to 50% for the bearings with rGO nano-additives. These findings were confirmed by the corresponding reductions in vibrations and ultrasound levels. The steady-state temperatures of bearings running with lithium grease reached 64 °C, whereas the temperature of bearings lubricated by grease with 2 wt.% rGO measured only 27 °C. A Timken Load test was conducted on grease samples with and without rGO additives. Grease samples having 2, 3.5, and 5 wt.% rGO showed the highest OK load with an increase of 25%, 50%, and 100% as compared to values of lithium grease. For comparison, all tests were conducted on samples of the same grease blended with graphite and MWCNTs’ nano-additives. The results proved the superiority of graphene in enhancing the load-carrying capacity and damping of grease in rolling bearings.

show abstract

“…The concentration of dispersed oil and grease is an important parameter for water quality and safety (Osibanjo et al, 2011;Westerhoff et al, 2018). Oil and grease includes fats, oils, waxes, and other related constituents found in water and wastewater (Achanta et al, 2011;Lugt and Pallister, 2012;Radulescu et al, 2018), and their low solubility reduces their rate of microbial degradation (Bai et al, 2011). The petroleum industry has grown at a fast rate since its inception and became an indispensable element of most communities and has led to generation of waste products.…”

Section: Introductionmentioning

confidence: 99%

Potential Impacts of Oil and Grease on Algae, Invertebrates and Fish in the Bujagali Hydropower Project Area

Masifwa

Matuha

Magezi

et al. 2022

UJAS

View full text Add to dashboard Cite

This study determined the concentration of oil and grease and inferred its impacts on algae, invertebrates and fish. Water samples were collected in April and September from 2012 to 2018 at the upstream and downstream transects and in the reservoir, and analysed for oil and grease following standard procedures. Environmental compliance was compared to NEMA’s discharge standard of 10 mg/l, and its PAH effluent discharge standard of ≤ 0.1 mg/l. At all sites, average concentrations of oil and grease were below 10 mg/l throughout the sampling period. Out of the 14 data sets for each transect, only 3 along the upstream transect, and 2 at each of the downstream transect and the reservoir were compliant with the effluent discharge standard. Although impacts of oil and grease on aquatic biota were not assessed, their relatively high concentration compared to total Polycyclic Aromatic Hydrocarbon (> 0.1 µg/l) is considered hazardous to most aquatic organisms. The diverse activities around the project area implied that sources of oil and grease were proportionately diverse. Hence, the observed trends may not solely be attributed to the hydropower project. Accordingly, assessment of the various sources of oil and grease and their impact on aquatic biota in the area is recommended.

show abstract

Grease Composition and Properties

Cited by 6 publications

References 0 publications

The Tribological Performance of Perfluoropolyether-Based Grease Biolubricant: A Bibliometric Analysis

The Tribological Performance of Perfluoropolyether-Based Grease Biolubricant: A Bibliometric Analysis

Impact of Graphene Nano-Additives to Lithium Grease on the Dynamic and Tribological Behavior of Rolling Bearings

Potential Impacts of Oil and Grease on Algae, Invertebrates and Fish in the Bujagali Hydropower Project Area

Contact Info

Product

Resources

About