Tribological properties of poly(amide amine) and small molecule composite self-assembled monolayers: Influence of functional group of small molecule

Cui, Baofeng; Zhang, Junyan; Chen, Jianmin

doi:10.1016/j.triboint.2013.01.013

Cited by 2 publications

(2 citation statements)

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“…Aer the surface is cleaned, it is rinsed in deionised water then dried in air, argon or nitrogen. 17,[55][56][57][58][59][60][61][62] For systems that require a highly hydroxylated surface to form high quality SAM a surface oxidation treatment is also employed using either piranha or plasma.…”

Section: Factors Inuencing Sam Formationmentioning

confidence: 99%

“…Piranha hydroxylation treatment uses a solution of concentrated sulphuric acid (98%) and hydrogen peroxide (30%) at a ratio of 7 : 3, 4 : 1 or 3 : 1. 31,32,44,46,52,55,57,58,[62][63][64][65][66][67][68][69][70][71][72][73][74][75][76] Samples are typically immersed in the solution at a temperature between 60 and 90 C for duration of 30 to 60 minutes, although majority of the studies chose to immerse their samples at 90 C for 30 minutes. The piranha treatment has been found to be an effective method to create a good OH-terminated surface where very low water contact angles of less than 10 can be achieved.…”

Section: Factors Inuencing Sam Formationmentioning

confidence: 99%

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Challenges and developments of self-assembled monolayers and polymer brushes as a green lubrication solution for tribological applications

et al. 2015

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ab Self-assembled monolayers (SAMs), after originally being investigated due to their functions in changing surface wettability, have been significantly developed over the years. Many types of SAMs have been developed on a variety of substrates. However their formation mechanism, rate and quality are found to be influenced by many factors. A range of SAMs including single-and multi-component are included in this review with focus on the nano and macro tribological properties. More recently, surface initiated polymer brushes, i.e. macromolecular assemblies attached to a substrate, have emerged to be an alternative and promising method for surface modification. The ability to tether these macromolecules to tribological contacts is key to their resistance to shear under loaded contacts. This review also covers atom transfer radical polymerisation (ATRP) and the role of this technique in developing new lubrication solutions. Particular care has been taken to include the development of lubrication solutions for silicon nitride due to the importance of this material as an engineering ceramic. This paper reviews the stateof-the-art development of SAMs and polymer brushes especially the potential opportunities and challenges in applying them in tribological contacts as a lubrication solution.

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