Adhesion 15 : Based on papers presented at the 28. annual conference onadhesion and adhesives, City University, London 1990

Once again, just before Easter, a goodly number of people gathered to hear a series of papers on a variety of aspects of adhesion presented by authors from a number of countries. Overall they all seemed to be as well pleased as ever with what they received. One might have thought that by now-the twenty-eighth year-the whole range of possible topics had been scanned; but no, there are two papers which are concerned with an entirely new one. This arises from the fairly recent recognition that if society is to utilise adhesives and gain anything like their potential advantage, then there is a whole area of dissemination of information and a special sort of education which must be accomplished. To meet this need various initiatives have been undertaken, and two of these are reported within this volume-in addition to papers of the more conventional technological type. As always, I must record my thanks to all those who make possible both these conferences and the books through which the papers are available to a wider audience. The audience, the authors and their secretaries, various people within the University, the publishers and their staff; all are essential parts of the whole. To them, each and everyone, may I express my sincere appreciation and gratitude. Front Matter....Pages i-ix Testing of Adhesives - Useful or Not....Pages 1-18 An Experimental Assessment of the Coin-Tap Technique for Detecting Defects in Adhesively Bonded Sheet Steel Joints....Pages 19-36 The Blister Test as a Means of Evaluating the Properties of Release Agents....Pages 37-57 The Use of Primers in Bonding Polypropylene....Pages 58-68 Bonding of Polyolefins with Cyanoacrylate Adhesives....Pages 69-79 Polyurethanes and Isocyanates Containing Hydrophilic Groups as Potential Components of Water-Borne Adhesives....Pages 80-101 Interaction of Chromium Compounds with Polyurethanes....Pages 102-115 Sessile Drops on Heterogeneous Surfaces : Static and Dynamic Behaviour....Pages 116-130 The Use of Optically Stimulated Electron Emission for the Detection of Surface Contamination....Pages 131-147 XPS Studies of the Interface between PMMA and Aluminium....Pages 148-161 Influence of Environmental Conditions on Adhesive Joint Failure....Pages 162-195 Development and Study of Hydrophillic Epoxy Based Adhesives.....Pages 196-212 Promoting the Exploitation of Adhesives in Industry....Pages 213-221 The Development and Transfer of Adhesives Technology at Pera....Pages 222-236