ATOMIC FORCE MICROSCOPY IN ADHESION STUDIES Edited by JAROSLAW DRELICH and KASH L. MITTAL VSP Leiden Boston e 2005 0 Copyright 2005 by Koninklijke Brill NV, Leiden, The Netherlands. Koninklijke Brill NV incorporates the imprints Brill Academic Publishers, Martinus Nijhoff Publishers and VSP. All rights reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without written permission by the publisher. Authorization to photocopy items for internal or personal use is granted by Brill provided that the appropriate fees are paid directly to Copyright Clearance Center, 222 Rosewood Drive, Suite 910, Danvers, MA 01923, USA. Fees are subject to change. ISBN 90 6764 434 X Printed in the Netherlands by Ridderprint bv, Ridderkerk Atomic Force Microscopy in Adhesion Studies, pp. ix-x Eds J. Drelich and K.L. Mittal, VSP, Leiden-Boston 2005 Preface In recent years, atomic force microscopy (AFM) has become a technique of choice for non-destructive solid surface imaging and characterization with an atomic resolution. It is also the instrument that is commonly used in measurements of long-range and short-range surface forces for microscopic particles and nano-sized probes. With the AFM instrument, and other techniques classified under scanning probe microscopy, we are now capable of exploring the adhesion properties of materials from microscopic scale down to molecular level, which are required for developing micro-systems and nano-devices (where gravity does not matter and behaviour of systems is controlled by interactions between surfaces in contact or separated by only a few nanometers). The AFM has become established, therefore, as a problem-solving tool in the development of microsystems and nanotechnology. It has also become one of the basic analytical tools in applications relevant to particle-solid and particle-liquid interactions. It can deliver data on colloidal and molecular forces as well as local properties of materials that stimulate development of new and improved technologies in selective flotation of minerals, recovery of polymers from plastic waste, deinking of recycled paper, recovery of oil from mined oil sands, cleaning electronic materials from nanoparticles, design of new nanocomposites, fabrication of novel biosensors, and others. This book provides a comprehensive review of AFM techniques and their appli- cation in adhesion studies. Over 100 authors have contributed to this book, and they provide a summary of current research on measurements and interpretation of particle-solid adhesion, capillary and molecular forces, solid surface imaging and mapping, and measurements of mechanical properties of materials at nanoscale. Also in this book, the contact mechanics models applicable to particle-substrate and particle-particle systems are discussed extensively. The process of compiling the technical papers presented in this book was inititated by us in the year 2000 during the preparation of a special issue of the Journal of Adhesion Science and Technology (JAST) on ‘Application of Scanning Probe Microscopy in Interfacial Phenomena’ (Vol. 14, No. 14). As we recognized that even with the present telecommunications revolution, it took time and effort to collect the published research articles on adhe- sion studies with the AFM technique, given their spread among numerous journals - not always easily accessible to many researchers - so we decided to compile information on this topic in an easily accessible source and this book is the result. The availability of focussed scientific information into a few accessible resources becomes attractive and gratifying to many researchers. The positive response that X Preface we received from the readers of the first special issue of JAST motivated us to pre- pare and edit two other issues of this journal (Vol. 16, No. 7,2 002 and Vol. 19, No. 3-5, 2005) dedicated to the same topic. We have also noticed an increased sub- mission of manuscripts on the use of the AFM technique and contact mechanics studies to JAST in the last five years, and concomitantly, several interesting techni- cal reports have been published in regular JAST issues. In this single volume, we offer all the papers that were published in JAST on AFM and contact mechanics studies during 2000-May 2005. This includes 30 papers published in the three special issues dedicated to ‘Application of Scanning Probe Microscopy in Interfacial Phenomena’ and 12 published in regular JAST issues. A few errors that appeared in some of the original papers have been corrected in this book. All these peer-reviewed papers, written by internationally- renowned researchers, have been arranged according to the following topics: Adhesion Force Measurements, Chemical Origins of Adhesion, Roughness Effects in Adhesion Force Measurements, Capillary Adhesion and Wetting Phenomena, Measurements of Colloidal Forces, Adhesion Mapping and Surface Imaging, and Examination of Interphases and Nano-indentation. This book not only highlights the current progress made in applications of the AFM techniques in adhesion studies and characterization and mapping of solid surfaces, but also provides useful guidelines for experimental methodologies used in measurements of adhesion, molecular, colloidal and capillary forces. Applicability of theoretical models in the interpretation of recorded forces as well as the controversy surrounding the selection of models in the analysis of the AFM results are also emphasized in this book. We hope this book will serve as a reference for both new and current users of the scanning probe microscopes, particularly those who are engaged in exploring both fundamental and practical aspects of adhesion phenomena. To our knowledge, this is the first book exclusively dedicated to this important and burgeoning topic. This book could not materialize without contributions from the authors of included papers, time and effort that reviewers dedicated to the manuscripts during the review process, and help received from the publisher. We thank them all! JAROSLAW DRELICH and KASH L. MITTAL June 2005 Contents Preface J. Drelich and K. L. Mittal ix Adhesion Force Measurements Application of atomic force spectroscopy (AFS) to studies of adhesion phenomena: a review E L. Leite and l? S. l? Herrmann 3 Interaction force measurements using atomic force microscopy for characterization and control of adhesion, dispersion and lubrication in particulate systems M. S. Esayanul; S. B. Yeruva, I: I. Rabinovich and B. M. Moudgil 45 Comparison of various adhesion contact theories and the influence of dimensionless load parameter X.S hi and K-l? Zhao 61 Accounting for the JKR-DMT transition in adhesion and friction measurements with atomic force microscopy D. S. Grierson, E. E. Flater and R. W Carpick 75 Frictio!i, adhesion, and deformation: dynamic measurements with the atomic force microscope P. Attard 97 Direct adhesion measurements of pharmaceutical particles to gelatin capsule surfaces I: H.I brahim, T R. Burk, E M. Etzler and R. D. Neuman 137 Analysis of atomic force microscopy data for deformable materials M. W Rutland, J. W G. Tyrrell and P. Attard 155 Dynamic adhesion of grafted polymer surfaces as studied by surface force measurements M. A. Plunkett and M. W Rutland 173 Chemical Origins of Adhesion Chemical force microscopy: probing chemical origin of interfacial forces and adhesion D. K Vezenov, A. Noy and l? Ashby 189 Pull-off forces measured between hexadecanethiol self-assembled monolayers in air using an atomic force microscope: analysis of surface free energy E. R. Beach, G. W Tormoen and J. Drelich 24 1 vi Contents Adhesion forces between functionalized probes and hydrophilic silica surfaces D. Christendat, l? Abraham, Z. Xu and J. Masliyah 265 Analysis of atomic force microscope pull-off forces for gold surfaces portraying nanoscale roughness and specific chemical functionality G. W Tormoen, J. Drelich and E. R. Beach, III 28 1 A study of adhesion forces by atomic force microscopy C. Jacquot and J. Takadoum 299 Roughness Effects in Adhesion Force Measurements Microparticle adhesion studies by atomic force microscopy L. H. G. J. Segeren, B. Siebum, F: G. Karssenberg, J. W A. van den Berg and G. J. Vancso 309 A distribution of AFM pull-off forces for glass microspheres on a symmetrically structured rough surface G. W Tormoen, J. Drelich and J. Nalaskowski 345 Experimental analysis of the influence of surface topography on the adhesion force as measured by an AFM A. Mkndez-Vilas, M. L. Gonza'lez-Martfn, L. Labajos-Broncano and M. J. Nuevo 365 Adhesion forces between individual gold and polystyrene particles L. 0. Heim, S. Ecke, M. Preuss and H.-J. Butt 377 Adhesion of carbonyl iron powder particles studied by atomic force microscopy L. Heim, M. Farshchi, M. Morgeneyel; J. Schwedes, H.-J. Butt and M. Kappl 393 Adhesion of rough surfaces with plastic deformation L. Zhang and Z-P Zhao 409 Deformation of soft colloidal probes during AFM pull-off force measurements: elimination of nano-roughness effects G. W Tormoen and J. Drelich 425 Capillary Adhesion and Wetting Phenomena Role of surface roughness in capillary adhesion A. Ata, E I. Rabinovich and R. K. Singh 445 Direct measurements of the adhesion between a glass particle and a glass surface in a humid atmosphere S. Biggs, R. G. Cain, R. R. Dagastine and N. W Page 455 Measurement of oil-mediated particle adhesion to a silica substrate by atomic force microscopy Z I. Rabinovich, M. S. Esayanul; K. D. Johanson, J. J. Adler and B. M. Moudgil 473 Effect of relative humidity on adhesion and frictional properties of micro- and nano-scopic contacts A. A. Feilel; f? Jenkins and M. W Rutland 49 1 Contents vii Scanning force microscopy investigation of liquid structures and its application to fundamental wetting research S. Herminghaus, 7: Pompe and A. Fey 507 Contact angles on hydrophobic microparticles at water-air and water-hexadecane interfaces G. E. Yakubov, 0. I. Vinogradova and H.-J. Butt 523 Capillarity at the nanoscale: an AFM view E Mugele, i? Beckel; R. Nikopoulos, M. Kohonen and S. Herminghaus 54 1 Measurements of Colloidal Forces Surface forces between sphalerite and silica particles in aqueous solutions Z. Xu, R. Chi, 7: Difeo and J. A. Finch 557 Long-range attractive forces and energy barriers in de-inking flotation: AFM studies of interactions between polyethylene and toner J. Drelich, J. Nalaskowski, A. Gosiewska, E. Beach and J. D. Miller 573 Surface forces and characterization of glass surfaces bearing grafted polymers: solvent dependence M. A. Plunkett, S. Rodnel; L. Bergstrom and M. II? Rutland 589 Adhesion Mapping and Surface Imaging Design of a digitally controlled adhesion imaging mode using a scanning force microscope Z Zhang, A. Pungol; G. Jogikalmath and V Hlady 609 Mapping of adhesion forces on soil minerals in air and water by atomic force spectroscopy (AFS) I;: L. Leite, A. Rid, JI: and I? S. R Herrmann 625 The investigation of sized cellulose surfaces with scanning probe microscopy techniques L. E. Dickson and J. C. Berg 64 1 Atomic force microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermal studies of the new melamine fiber R. S. Rajeev, S. K. De, A. K. Bhowmick, B. Gong and S. Bandyopadhyay 657 Morphology and elasticity of waterborne acrylic pressure-sensitive adhesives investigated with atomic force microscopy J. Malldgol, 0. Dupont and J. L. Keddie 679 Relating material surface heterogeneity to protein adsorption: the effect of annealing of micro-contact-printed OTS patterns G. Hodgkinson and V Hlady 697 ... Vlll Contents Examination of Interphases and Nano-Indentation Determining the interphase thickness and properties in polymer matrix composites using phase imaging atomic force microscopy and nanoindentation 7: D. Downing, R. Kumal; W M. Cross, L. Kjerengtroen and J. J. Kellar 721 Use of an atomic force microscope to measure surface deformations in polymeric systems M. C. Roggemann and J. G. Williams 733 Studies of the interphase in epoxy -aluminum joints using nano-indentation and atomic force microscopy F: Li, J. G. Williams, B. S. Altan, I. Miskioglu and R. L. Whipple 749 Interphase variation in silane-treated glass-fiber-reinforced epoxy composites C. Griswold, W M. Cross, L. Kjerengtroen and J. J. Kellar 765 Characterization of the interphase in epoxy/aluminum bonds using atomic force microscopy and a nano-indenter J. G. Williams, F: Li and I. Miskioglu 777 Stiffness and adhesion characterization of nanolithographed poly(methy1 methacrylate) by means of force-displacement curves B. Cappella, H. Sturm and E. Schulz 799 Adhesion Force Measurements Atomic Force Microscopy in Adhesion Studies, pp. 3-43 Eds J. Drelich and K.L. Mittal, VSP, Leiden-Boston 2005 Application of atomic force spectroscopy (AFS) to studies of adhesion phenomena: a review E L. LEITE 1.2 and P. S. P. HERRMANN ',* Embrapa Agricultural Instrumentation, Rua XV de Novembro 1452, CEP 13560-970, Sdo Carlos, Sdo Paulo, Brazil Institute of Physics of Sdo Carlos, University of Sdo Paul0 (USP), CEP 13560-970, Sdo Carlos, Sdo Paulo, Brazil Abstract-This review article describes the fundamental principles of atomic force spectroscopy (AFS) and how this technique became a useful tool to investigate adhesion forces. AFS is a technique derived from atomic force microscopy (AFM) and can determine, at every location of the sample surface, the dependence of the interaction on the probe-sample distance. AFS provides valuable information, at the nano-scale, such as, for example: (i) how the magnitude of the adhesion force depends on long- and short-range interactions and (ii) the tip-sample contact area. An overview about the theory and experiments with local force spectroscopy, force imaging spectroscopy, chemical force microscopy and colloidal probe technique is presented. The many applications of the AFS technique for probing surface interactions open up new possibilities to evaluate adhesion, an important characteristic of materials. Keywords: Atomic force spectroscopy; adhesion phenomena; surface properties; atomic force microscopy; interfacial phenomena. 1. INTRODUCTION In 1980-1981 Binnig and co-workers at the IBM Zurich Research Laboratory developed a new type of microscope which they called the scanning tunneling microscope (STM) [l],b eing the first one in the scanning probe microscopy (SPM) family, that allowed visualization of surfaces on an atomic scale. Although the STM technique is limited to electrically conducting samples, it led to the development of numerous devices that utilize a range of physico-chemical interactions between a tip and sample surface. Equally important, this family of techniques includes one *To whom correspondence should be addressed. Tel.: (55-16) 3374-2477. Fax: (55-16) 3372-5958. E-mail: [email protected]
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