Preparation, Tribological Behavior, and Applications of Lubricant Additives

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: 20 July 2024 | Viewed by 1917

Special Issue Editor


E-Mail Website
Guest Editor
School of Chemical Engineering, Shanghai Institute of Technology, Shanghai 201418, China
Interests: lubricant additives; tribology; friction; wear; lubricating grease; lubrication; surface and interface

Special Issue Information

Dear Colleagues,

The scientific research, design development and engineering applications of lubricating materials are important to ensure the long life and highly reliable operation of mechanical equipment. Lubricating additives are the essence of lubricating oil, and the comprehensive performance and service characteristics of such oil largely depend on the development of additive technology. The design and preparation of new lubricating additives, the study of tribological properties and mechanisms, and the application of lubricating oil in different domains are the future development direction in this field.

The purpose of this Special issue is to discuss the design and preparation of lubricating additives, tribological properties, and mechanism research, as well as the application of lubricants in different fields and other new developments. It covers material, mechanical, and chemical interactions. Both experimental and theoretical research are welcome.

Dr. Jincan Yan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • lubricant additives
  • preparation
  • triblogical behavior
  • application
  • surface and interface technology
  • friction
  • wear
  • lubrication
  • tribology

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

14 pages, 5321 KiB  
Article
Synergistic Effect of Acrylate of Dialkyl Dithiophosphoric Acid Combined with Molybdenum Dialkyl Dithiocarbamate as Additives in Gear Oil
by Minghao Ding, Yimin Mo, Hong Zhang and Qingchun Liu
Lubricants 2024, 12(5), 165; https://doi.org/10.3390/lubricants12050165 - 9 May 2024
Viewed by 386
Abstract
With the aim of improving the tribological properties of low-viscosity gear oil for automobiles, an acrylate of dialkyl dithiophosphoric acid (ADDP) with strong polar groups was synthesized. The tribological behavior of ADDP combined with molybdenum dialkyl dithiocarbamate (MoDTC) in gear oil was systematically [...] Read more.
With the aim of improving the tribological properties of low-viscosity gear oil for automobiles, an acrylate of dialkyl dithiophosphoric acid (ADDP) with strong polar groups was synthesized. The tribological behavior of ADDP combined with molybdenum dialkyl dithiocarbamate (MoDTC) in gear oil was systematically studied. Tribological performances of gear oil containing different additives were assessed using a four-ball friction and wear tester. The obtained tribological characteristics reveal that ADDP and MoDTC can significantly improve the antiwear and antifriction performance of low-viscosity gear oil. Moreover, compared with using MoDTC or ADDP alone, the average friction coefficient and wear scar diameter of ADDP combined with MoDTC further decreased by 2.41–19.15% and 5.00–18.19%, respectively. Analysis of the worn surface showed that the structural characteristics and physical synergistic lubricating actions of the ADDP with MoDTC additives during the friction process can contribute to the exceptional tribological properties of the hybrid additives. Full article
Show Figures

Graphical abstract

Review

Jump to: Research

29 pages, 4343 KiB  
Review
Research Progress of Antioxidant Additives for Lubricating Oils
by Deping Xia, Yonggang Wang, Hui Liu, Jincan Yan, Hualin Lin and Sheng Han
Lubricants 2024, 12(4), 115; https://doi.org/10.3390/lubricants12040115 - 31 Mar 2024
Viewed by 1188
Abstract
Lubricating oils play an important role in friction-reducing and anti-wear, as well as enhancing mechanical efficiency. To improve the oxidation stability and service life of lubricating oils, the composition and structure of antioxidants should be strategically designed, and these parameters have significantly affected [...] Read more.
Lubricating oils play an important role in friction-reducing and anti-wear, as well as enhancing mechanical efficiency. To improve the oxidation stability and service life of lubricating oils, the composition and structure of antioxidants should be strategically designed, and these parameters have significantly affected the performance of antioxidants in lubricating oils. Antioxidants are classified into two types based on the substrates they act on: peroxide decomposers and radical scavengers. In this review, the effects of peroxide decomposers (including sulfur compounds, phosphorus compounds, sulfur–phosphorus compounds, and sulfur–nitrogen compounds) and radical scavengers, such as hindered phenols and aromatic amines, have been discussed as additives in the antioxidant properties of lubricating oils. The results indicate that peroxide decomposers have excellent performances in lubricating oils, but high pollution of S and P is not conducive to their widespread use. On the contrary, radical scavengers also have superior antioxidant properties and no pollution, possessing the potential to replace traditional antioxidants. In addition, molecular structures with (multiple) synergistic antioxidant properties have been extensively designed and reported. This review serves as a reference for researchers to design and develop high-end new antioxidants. Full article
Show Figures

Figure 1

Back to TopTop