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Polymeric Materials as Lubricant Additives

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (20 January 2022) | Viewed by 9658

Special Issue Editors


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Guest Editor
Pacific Northwest National Laboratory, 902 Battelle Blvd., MSIN K2-44, Richland, WA 99354, USA
Interests: synthesis; polymers; chromophores; hydrogels; fuels; lubrication; friction modifiers; multifunctional additves

E-Mail Website
Guest Editor
Experimental Operations Facility, Argonne National Laboratory, 9700 S. Cass Ave, 212 D212 Lemont, IL 60439, USA
Interests: tribology; lubricants; thin film deposition; instrumentation; wear; friction

Special Issue Information

Dear Colleagues,

Ubiquitous to many facets of our machines, lubricants are often underestimated and viewed as commodity products. Lubricants are one of the most critical elements to engine durability and lifetime, providing much sought-after fuel efficiency, yet they are unseen and long ignored. They are additized with many materials that maintain and perform specific functions, one of the main components being polymers. The critical functions of polymers (as viscosity modifiers or viscosity index improvers, dispersants, pour point depressants, and multifunctional) are a direct effect of their structure, molecular weight, architecture, and topology. Because polymeric lubricant additives are an “old” technology, fundamental studies that address structure–properties relationships are often missing from the published literature.

This Special Issue has been launched to highlight the most recent advances in polymer design and synthesis, interaction within bulk base oil, interaction with other components, viscosity, shear stability, film forming properties, tribology, surface interaction effects, molecular weight, mechanistic studies, and machine learning, to achieve a fundamental understanding of their operation. In addition, any work around green polymers (biobased or plastic-derived) is encouraged. Of interest are polymers utilized in fluid lubricants and greases; however, polymers for solid lubrication will also be considered. We hope that this Special Issue stimulates authors and readers, as much as the Editors.  

Dr. Lelia Cosimbescu
Dr. Robert Erck
Guest Editor

Manuscript Submission Information

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Keywords

  • Viscosity improvers
  • film-forming
  • polymer architecture
  • green polymers
  • tribology
  • polymer synthesis
  • shear stability
  • atomistic simulations

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Published Papers (2 papers)

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Research

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14 pages, 5073 KiB  
Article
Design and Characterization of the Surface Porous UHMWPE Composite Reinforced by Graphene Oxide
by Xiaohong Chen, Sheng Zhang, Lin Zhang, Ping Zhu and Gangqiang Zhang
Polymers 2021, 13(4), 482; https://doi.org/10.3390/polym13040482 - 3 Feb 2021
Cited by 25 | Viewed by 2971
Abstract
The surface porous ultrahigh molecular weight polyethylene (UHMWPE) composites were successfully fabricated with NaCl and graphene oxide (GO) in the hot-pressing procedure. The GO sheets were evenly dispersed in UHMWPE with the sedimentation method of GO in saturated NaCl. The morphologies, chemical compositions, [...] Read more.
The surface porous ultrahigh molecular weight polyethylene (UHMWPE) composites were successfully fabricated with NaCl and graphene oxide (GO) in the hot-pressing procedure. The GO sheets were evenly dispersed in UHMWPE with the sedimentation method of GO in saturated NaCl. The morphologies, chemical compositions, mechanical, and tribological properties of GO and surface porous GO/NaCl/UHMWPE were investigated. The results show that GO sheet and NaCl could be evenly dispersed in UHMWPE. The regular pores are present on the surface of UHMWPE after NaCl dissolution in distilled water. The wear resistance properties are improved significantly, and the friction properties increased slightly with the addition of GO and NaCl. Full article
(This article belongs to the Special Issue Polymeric Materials as Lubricant Additives)
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Review

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29 pages, 10195 KiB  
Review
A Short Review on Polymeric Biomaterials as Additives for Lubricants
by Gobinda Karmakar, Koushik Dey, Pranab Ghosh, Brajendra K. Sharma and Sevim Z. Erhan
Polymers 2021, 13(8), 1333; https://doi.org/10.3390/polym13081333 - 19 Apr 2021
Cited by 16 | Viewed by 5615
Abstract
With increasing environmental concerns and the depletion of petroleum resources, the development of lubricant additives from bioresources has attracted much attention recently. In this review, we reported a few polymers and polymer composites that are synthesized from vegetable oils (soybean oil, sunflower oil, [...] Read more.
With increasing environmental concerns and the depletion of petroleum resources, the development of lubricant additives from bioresources has attracted much attention recently. In this review, we reported a few polymers and polymer composites that are synthesized from vegetable oils (soybean oil, sunflower oil, rice bran oil, and castor oil) and used as multifunctional additives in the formulation of eco-friendly lubricant compositions. We mentioned the preparation of vegetable oil-based homo- and copolymers and their characterization by different spectral techniques (FTIR/NMR). The average molecular weights of the polymers are determined by gel permeation chromatography (GPC). Performance evaluations of the polymeric materials mainly as a viscosity index improver (VII), pour point depressant (PPD), and most importantly antifriction additives when blended with lubricating base oils are indicated. Standard ASTM methods have been applied to evaluate their performances. The findings have shown that all the additives discussed are non-toxic, biodegradable, and showed excellent performances compared to commercial petroleum-based additives. Full article
(This article belongs to the Special Issue Polymeric Materials as Lubricant Additives)
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