Adhesion And Bonding To Polyolefins

Polyolefins have many and varied applications. However, they have very poor bonding properties. This review discusses ways of improving adhesion and bonding. It describes the theories surrounding adhesion of polyolefins and the analysis techniques which have been used to characterise the material surfaces. Methods of enhancing adhesion are then discussed. An additional indexed section containing several hundred abstracts from the Polymer Library gives useful references for further reading.

The use of adhesives continues to increase both in importance and in areas of use, particularly in engineering construction. Alongside this is a steady growth in our fundamental understanding of the factors involved. Both of these topics are reflected in various meetings and nowhere more consistently than at the Annual Conference on Adhesion and Adhesives at The City University each Easter. 1984 was the twenty-second of these when, once again, people carne from far and near to present accounts of their work and to discuss them in all their variety. This publication makes the papers available to the wider audience who were not able to attend in person. In presenting this volume, may I express sincere gratitude, both personally and on behalf of the University, to all those who contributed in so many and various ways to the conference. K. W. ALLEN Contents Preface. v l. Textile-to-Rubber Adhesion: Theory and Practice David B. Wootton (Milliken Industrials Ltd, Wellington Mill, Wellington Street, Bury, Lancashire BL8 2AY, UK) 2. Aspects of Adhesion Promotion with Flexible Coated Fabrics 13 J. R. Holker and A. J. G. Sagar (Shirley Institute, Didsbury, Manchester M20 8RX, UK) 3. The Adhesion of Some Ethylene-Vinyl Acetate Copolymers Applied as Hot Melt Coatings to Metals 33 T. A. Hatzinikolaou and D. E. Packham (School of Materials Science, University of Bath, Claverton Down, Bath BA2 7 A Y, UK) 4. Formation of Indium Bonds for Ultrasonic Systems and Examination of Metal Diffusion Bonds by Scanning Acoustic Microscopy .

An indispensable volume detailing the current and potential applications of atmospheric pressure plasma treatment by experts practicing in fields around the world Polymers are used in a wide variety of industries to fabricate legions of products because of their many desirable traits. However, polymers in general (and polyolefins, in particular) are innately not very adhesionable because of the absence of polar or reactive groups on their surfaces and concomitant low surface energy. Surface treatment of polymers, however, is essential to impart reactive chemical groups on their surfaces to enhance their adhesion characteristic. Proper surface treatment can endow polymers with improved adhesion without affecting the bulk properties. A plethora of techniques (ranging from wet to dry, simple to sophisticated, vacuum to non-vacuum) for polymer surface modification have been documented in the literature but the Atmospheric Pressure Plasma (APP) treatment has attracted much attention because it offers many advantages vis-a-vis other techniques, namely uniform treatment, continuous operation, no need for vacuum, simplicity, low cost, no environmental or disposal concern, and applicability to large area samples. Although the emphasis in this book is on the utility of APP treatment for enhancement of polymer adhesion, APP is also applicable and effective to modulate many other surface properties of polymers: superhydrophilicity, superhydrophobicity, anti-fouling, anti-fogging, anti-icing, cell adhesion, biocompatibility, tribological behavior, etc. The key features of Atmospheric Pressure Plasma Treatment of Polymers: Address design and functions of various types of reactors Bring out current and potential applications of APP treatment Represent the cumulative wisdom of many key academic and industry researchers actively engaged in this key and enabling technology

This is a unique compilation of surface preparation principles and techniques for plastics, thermosets, elastomers, and metals bonding. With emphasis on the practical, it draws together in a single source technical principles of surface science and surface treatments technologies of plastics, elastomers, and metals. It is both a reference and a guide for engineers, scientists, practitioners of surface treatment, researchers, students, and others involved in materials adhesion and processing.This book describes and illustrates the surface preparations and operations that must be applied to a surface before acceptable adhesive bonding is achieved. It is meant to be a comprehensive overview, including more detailed explanation where necessary, in a continuous and logical progression. This book is intended to be a handbook for reference of surface treating processes. The more technical chapters can be bypassed to study the applied chapters. The text is accessible to readers with a college-level background in mathematics and chemistry, but an in-depth knowledge of adhesion technology is not required.

A handbook on polyolefins. This second edition includes new material on the structure, morphology and properties of polyolefin (PO) synthesis. It focuses on synthetic advances, the use of additives, special coverage of PO blends, composites and fibres, and surface treatments. It also addresses the problem of interfacial and superficial phenomena.

This review discusses the types of engineering adhesives in use, properties, advantages and disadvantages, and applications. It is very clearly written, well referenced and provides an excellent overview of a rapidly developing field. The author is an expert with many years of experience in adhesive research and development. The review is accompanied by around 400 abstracts from papers and books in the Polymer Library, to facilitate further reading on this subject.

This book is based on the 13 review articles written by subject experts and published in 2014 in the Journal Reviews of Adhesion and Adhesives. The rationale for publication of this book is that currently the RAA has limited circulation, so this book provides broad exposure and dissemination of the concise, critical, illuminating, and thought-provoking review articles. The subjects of the reviews fall into 4 general areas: 1. Polymer surface modification 2. Biomedical, pharmaceutical and dental fields 3. Adhesives and adhesive joints 4. General Adhesion Aspects The topics covered include: Adhesion of condensed bodies at microscale; imparting adhesion property to silicone material; functionally graded adhesively bonded joints; synthetic adhesives for wood panels; adhesion theories in wood adhesive bonding; adhesion and surface issues in biocomposites and bionanocomposites; adhesion phenomena in pharmaceutical products and applications of AFM; cyanoacrylate adhesives in surgical applications; ways to generate monosort functionalized polyolefin surfaces; nano-enhanced adhesives; bonding dissimilar materials in dentistry; flame treatment of polymeric materials—relevance to adhesion; and mucoadhesive polymers for enhancing retention of ocular drug delivery.

The Mechanics of Adhesion shows that adhesion science and technology is inherently an interdisciplinary field, requiring fundamental understanding of mechanics, surfaces, and materials. This volume comprises 19 chapters. Starting with a background and introduction to stress transfer principles; fracture mechanics and singularities; and an energy approach to debonding, the volume continues with analysis of structural lap and butt joint configurations. It then continues with discussions of test methods for strength and constitutive properties; fracture; peel; coatings, the case of adhesion to a single substrate; elastomeric adhesives such as sealants. The role of mechanics in determining the locus of failure in bonded joints is discussed, followed by a chapter on rheology relevant to adhesives and sealants. Pressure sensitive adhesive performance; the principles of tack and tack measurements; and contact mechanics relevant to wetting and surface energy measurements are then covered. The volume concludes with sections on fibermatrix bonding and reinforcement; durability considerations for adhesive bonds; ultrasonic non-destructive evaluation of adhesive bonds; and design of adhesive bonds from a strength perspective. This book will be of interest to practitioners in the fields of engineering and to those with an interest in adhesion science.