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ORIGINAL RESEARCH article

Front. Coat. Dyes Interface Eng.
Sec. Engineered Surfaces and Interfaces
Volume 2 - 2024 | doi: 10.3389/frcdi.2024.1428841
This article is part of the Research Topic Frontiers in Coatings, Dyes and Interface Engineering: Inaugural Collection View all 6 articles

On the elasticity, adhesion, and friction of PDMS at the nanometer scale

Provisionally accepted
Woojin Lee Woojin Lee Jeongwoo Ha Jeongwoo Ha Jaemoo Kim Jaemoo Kim Arnaud Caron Arnaud Caron *
  • Korea University of Technology and Education, Cheonan, Republic of Korea

The final, formatted version of the article will be published soon.

    We apply atomic force microscopy (AFM)-based methods to quantify PDMS's elastic and tribological properties in single asperity contacts (quasi-static and sliding) with a nanometer-scale SiOx asperity under dry conditions. The selected experimental approach allows us to model the contact initiation with PDMS and its degradation. Combining quasi-static and reciprocal sliding experiments, we identify several contributions to adhesion and friction: junction formation, elastic deformation, rupture, and adhesive material transfer. Furthermore, we find correlations between the elastic deformation of PDMS/SiO2 junctions and their adhesion hysteresis on the one hand and the shear strength and the work of adhesion on the other.

    Keywords: PDMS, Adhesion, Friction, Elasticity, AFM

    Received: 07 May 2024; Accepted: 04 Oct 2024.

    Copyright: © 2024 Lee, Ha, Kim and Caron. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Arnaud Caron, Korea University of Technology and Education, Cheonan, Republic of Korea

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