Detailed characterization of aeration in lubricating oils by an ultrasonic approach

Zhan, Che; Saint‐Jalmes, Arnaud; Receveur, M.; Bahi, Hakim El; Rondelez, F.; Leroy, Valentin

doi:10.1016/j.triboint.2022.107782

Cited by 2 publications

(3 citation statements)

References 21 publications

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“…However, foams are not prone to forming in pure substances, and even frothing will break up and disappear immediately [ 11 ]. Therefore, foam that can exist stably in lubricating oil must be caused by the large amount of surfactants in the oil.…”

Section: Formation and Harm Of Foammentioning

confidence: 99%

“…It is worth noting that different additives have different effects on bubbles in lubricating oil. Some additives will make bubbles aggregate, while others will make bubbles smaller and difficult to remove [ 11 ]. In order to obtain a lubricating oil with excellent defoaming properties, special base oil and additives are required to be blended.…”

Section: Defoaming Mechanismmentioning

confidence: 99%

“…Therefore, the elimination of harmful foam is of great safety and economic significance for reducing non-essential losses and extending mechanical life. At present, adding antioxidant or defoaming agents (also known as antifoaming agents) into lubricating oil is a relatively simple and effective method [ 10 , 11 ]. Based on this, the action mechanism of lubricating-oil defoaming agents will be discussed in this review, and the types and characteristics of existing defoaming agents will be summarized in order to provide ideas for the research and development of defoaming agents [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Antifoaming Agent for Lubricating Oil: Preparation, Mechanism and Application

et al. 2023

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In the process of using lubricating oil, it is inevitable that bubbles will be produced, which can not only accelerate the oil’s oxidation and shorten the oil change cycle but also reduce its fluidity and lubricity, aggravate the wear of mechanical parts and produce an air lock that interrupts the oil pump supply and causes an oil shortage accident. This paper mainly and comprehensively discusses the foaming process and its harm, the defoaming mechanism and defoaming method of lubricating oil, more specifically, the synthesis, application, advantages, disadvantages and current situation of three kinds of chemical defoaming agents, namely silicone defoaming agent, non-silicone defoaming agent and compound defoaming agent. Finally, the paper looks forward to the future development of special defoaming agents for lubricating oil.

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Section: Formation and Harm Of Foammentioning

confidence: 99%

Section: Defoaming Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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