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Application of the JKR method to the measurement of adhesion to Langmuir-Blodgett cellulose surfaces
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
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2000 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 230, no 2, 441-447 p.Article in journal (Refereed) Published
Abstract [en]

The JKR method has been applied for studying adhesion between poly(dimethylsiloxane) (PDMS) caps and Langmuir-Blodgett cellulose surfaces including the substrate, hydrophobized mica, and two flat mineral surfaces, bare mica and glass, The self-adhesion of PDMS caps and oxidized PDMS caps are included as a reference to compare with literature data. The results of the measurements have been compared with previous studies using the surface force apparatus and similar systems. A satisfactory agreement is obtained for simple systems showing no, or very limited, hysteresis between loading and unloading curves, In several cases, however, a large hysteresis is found between loading and unloading curves, with a larger adhesion measured from the pull-off force than from the JKR-curve determined on loading. This is, for instance, the case for PDMS against cellulose. The situation is analogous to that found in wetting studies showing a large hysteresis between advancing and receding contact angles. (C) 2000 Academic Press.

Place, publisher, year, edition, pages
2000. Vol. 230, no 2, 441-447 p.
Keyword [en]
JKR method, adhesion, cellulose, PDMS, adhesion hysteresis, contact-angle hysteresis, silicone-rubber, films, polymers, deformation, dynamics, forces, solids
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:miun:diva-13719DOI: 10.1006/jcis.2000.7108ISI: 000090070000025Scopus ID: 2-s2.0-0034667669OAI: oai:DiVA.org:miun-13719DiVA: diva2:414336
Available from: 2011-05-03 Created: 2011-04-28 Last updated: 2016-10-11Bibliographically approved

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Citation style
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