Tiwari, A, Liskiewicz, TW and Hihara, L (2016) Studies of Wear and Tear and Hydrogen Bonding in Dendrimeric Fluorinated Polysilsequioxanes Coatings on an Aluminum Surface. Industrial & Engineering Chemistry Research, 55 (21). pp. 6085-6105. ISSN 0888-5885
Abstract
This paper explores the physicochemical and physicomechanical process occurring during the formation of dendrimeric fluorinated polysilsesquioxanes (PSSQ) coated over an active aluminum surface. The changes in chemical composition of PSSQ have been monitored as a function of time and investigated using FTIR 2D correlation spectroscopy. The percolation of water molecules, hydrogen bonding, and interference of several physicochemical processes occurring in curing and cross-linking reaction in PSSQ have been monitored. The changes in surface morphology as a function of time have been recorded with atomic force microscopy and correlated with the nanomechanical analyses through nanoindentation. Specifically, nanoscratch and wear resistances were recorded at various time intervals to understand the transformation in the surface characteristics of the material. The ultimate aim of this work was to understand the correlation between reacting ingredients, surface features, wear, and friction by applying a self-lubricated coating made of fluorinated PSSQ over an aluminum surface. Attempts have been made to understand how the quantity and interaction of water molecules control the hydrolysis, condensation, and subsequent cross-linking reactions. The degree of cross-linking eventually controls the hardness and adhesion characteristics of the molecules, which in turn control the surface topology, resulting friction, wear resistance, and consequent surface life span of the material.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial and Engineering Chemistry Research, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.iecr.6b00203 |
Keywords: | Hydrogen bonding, Energy analysis, Wear, Friction, Polysilsesquioxanes, Morphology |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 May 2016 10:31 |
Last Modified: | 18 Jul 2017 17:13 |
Published Version: | http://dx.doi.org/10.1021/acs.iecr.6b00203 |
Status: | Published |
Publisher: | American Chemical Society |
Identification Number: | 10.1021/acs.iecr.6b00203 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99864 |