scholarly journals Perfluoropolyether Boundary Lubricants Based on the Star Architecture

2018 ◽  
Vol 13 (5) ◽  
pp. 262-274 ◽  
Author(s):  
Robert J. Waltman ◽  
Connie Wiita ◽  
Roberto Valsecchi
Keyword(s):  
Boundary Lubricants

Alteration of crystallinity and thermal properties from incompatibility between ibuprofen and boundary lubricants

2021 ◽  
Author(s):  
Pornsit Chaiya ◽  
Chatchai Chinpaisal ◽  
Sontaya Limmatvapirat ◽  
Thawatchai Phaechamud
Keyword(s):  
Thermal Properties ◽  
Boundary Lubricants

Nanometer-Thick Ionic Liquids as Boundary Lubricants

2017 ◽  
Vol 20 (5) ◽  
pp. 1700617 ◽  
Author(s):  
Xiao Gong ◽  
Lei Li
Keyword(s):  
Ionic Liquids ◽  
Boundary Lubricants

scholarly journals Binding and lubrication of biomimetic boundary lubricants on articular cartilage

2016 ◽  
Vol 35 (3) ◽  
pp. 548-557 ◽  
Author(s):  
Kirk J. Samaroo ◽  
Mingchee Tan ◽  
David Putnam ◽  
Lawrence J. Bonassar
Keyword(s):  
Articular Cartilage ◽  
Boundary Lubricants

Nanotribological Properties of Organic Boundary Lubricants: Langmuir Films Versus Self-Assembled Monolayers

1998 ◽  
Vol 120 (3) ◽  
pp. 489-495 ◽  
Author(s):  
Valery N. Bliznyuk ◽  
Mark P. Everson ◽  
Vladimir V. Tsukruk
Keyword(s):  
Friction Coefficient ◽  
Packing Density ◽  
Mechanical Stability ◽  
Normal Load ◽  
Langmuir Monolayers ◽  
Promising Alternative ◽  
Frictional Behavior ◽  
Self Assembling ◽  
Assembled Monolayers ◽  
Boundary Lubricants

Frictional characteristics of several types of boundary lubricants were tested using scanning probe microscopy (SPM). These include Langmuir monolayers of stearic acids (STA), their cadmium salts (STCd), self-assembling monolayers (SAMs) of alkylchlorsilanes, and complexes of STA with rigid naphthoylene benzimidazole (x-NBI) fragments. We observed that a Langmuir monolayer deposited on a silicon surface had a very low friction coefficient against a silicon nitride tip (about 0.01–0.05) but also low mechanical stability. SAMs were found to be much more stable but had the drawback of growth in the friction coefficient at high sliding velocities. Composite NBI/STA monolayers were much more stable and were not damaged by the highest normal load applied. The frictional behavior of different monolayers was analyzed in relation to their structural organization (the type of tethering to the surface and packing density). We introduced a figure of merit (FOM) parameter which allowed comparison of frictional properties of very different lubricant materials to those of the supporting substrate. For Langmuir monolayers the FOM increased strongly with surface packing density whereas for SAMs and x-NBI/STA complexes it possessed a maximum at surface densities in the range 3.5–4.5 molecules per nm2. Because of the possibility of tailoring the surface packing density of aliphatic tails in the complexes, they are a promising alternative to both LB films and SAMs. For such composite monolayers, the surface packing density can be optimized to give a desired frictional behavior.

scholarly journals Ultrathin MoS2 Nanosheets with Superior Extreme Pressure Property as Boundary Lubricants

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Zhe Chen ◽  
Xiangwen Liu ◽  
Yuhong Liu ◽  
Selda Gunsel ◽  
Jianbin Luo
Keyword(s):  
Extreme Pressure ◽  
Mos2 Nanosheets ◽  
Boundary Lubricants ◽  
Ultrathin Mos2 Nanosheets

Boundary Lubricants with Exceptionally Low Friction Coefficients Based on 2D Close-Packed Phosphatidylcholine Liposomes

2011 ◽  
Vol 23 (31) ◽  
pp. 3517-3521 ◽  
Author(s):  
Ronit Goldberg ◽  
Avi Schroeder ◽  
Gilad Silbert ◽  
Keren Turjeman ◽  
Yechezkel Barenholz ◽  
...  
Keyword(s):  
Low Friction ◽  
Friction Coefficients ◽  
Phosphatidylcholine Liposomes ◽  
Boundary Lubricants

Superior extreme pressure properties of different layer LDH nanoplatelets used as boundary lubricants

2020 ◽  
Vol 530 ◽  
pp. 147203
Author(s):  
Kunpeng Wang ◽  
Huaichao Wu ◽  
Hongdong Wang ◽  
Yuhong Liu
Keyword(s):  
Extreme Pressure ◽  
Boundary Lubricants
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