Author: Michael Charles Wilson Publisher: ISBN: Category : Adhesion Languages : en Pages : 167
Book Description
Biological systems have developed a number of strategies to adhere underwater. In studying the materials which they use, more robust technologies can be made for applications. One facet of these adhesives, which must be characterized, is creating bonds between the glue and a surface. In trying to understand the connection between creating strong bonds between molecules and behavior seen in interfacial phenomena, I use the framework proposed by Fowkes, which considers the thermodynamic work of adhesion in dispersive and acid-base interaction components. In order to measure interfacial interactions, I use interface-sensitive sum frequency generation spectroscopy (SFG). The frequency shift of molecular vibrations of sapphire surface hydroxyl groups can be examined in SFG and can be connected to the enthalpy of acid-base interactions. My research involves verifying this calculation, by correlating the frequency shift seen in SFG with the acid-base parameters of Drago and Wayland. It is found that SFG can be used to measure the strength of interfacial acid-base interactions. Further, this measured enthalpy of acid-base interactions can be connected with interfacial phenomena including adsorption and adhesion. Binary liquid mixtures are brought in contact with the sapphire surface, and the difference in the works of adhesion of each liquid with the sapphire surface are calculated using the adsorption isotherm measured from SFG. This is compared with the calculated difference in work of adhesion from the Fowkes framework. The values are seen to correlate well with that from adsorption, connecting interfacial molecular interactions with macroscopic phenomena. Using adhesion measurements and the Johnson-Kendall-Roberts contact mechanics theory, the work of adhesion values calculated are compared with the calculated works of adhesion using the Fowkes theory. Bridging the connection between molecular interactions and macroscopic phenomena can aid in understanding interfacial phenomena in biological systems, but can also support the design of new molecules for adhesive applications.
Author: K. L. Mittal Publisher: VSP ISBN: 9789067643252 Category : Technology & Engineering Languages : en Pages : 910
Book Description
This book documents the proceedings of the Second International Symposium on Acid-Base Interactions: Relevance to Adhesion Science and Technology held in Newark, New Jersey, October 19--21, 1998. Since the first symposium on this topic was held on the occasion of the 75th birthday of Professor Frederick M. Fowkes in 1990, it was deemed opportune and necessary to hold the second symposium on this topic. This symposium was organized with the following objectives in mind: (i) to consolidate the R&D activity carried out since the first symposium, (ii) to provide a forum for discussion of latest research results, (iii) to provide an opportunity for cross-pollination of ideas, (iv) to identify topics where there was discordance of opinion or discrepancy, and (v) to highlight areas which needed intensified R&D activities. The final technical program contained a total of 36 papers by researchers and technologists from academia, industry and other organizations. This book contains a total of 32 papers, which were rigorously peer reviewed and suitably revised before inclusion in this book. The book is divided into three parts as follows: Part 1: Fundamental Aspects of Acid-Base Interactions; Part 2: Characterization of the Acid-Base Properties of Materials; and Part 3: Applications of Acid-Base Interactions. The topics covered include: Surface free energy acid-base theory applied to solid surfaces; Good, van Oss and Chaudhury theory; contact angle measurements and interpretation; acid-base theory of contact angles; acid-base strength of solid surfaces; acid-base interactions at solid surfaces; acid-base interactions at the molecular level; characterization of acid-base properties of a host of materials (polymers, wood, glass, ceramics, silica particles, textile fibers, rocks) by XPS, inverse gas chromatography, immersion calorimetry, contact angle titration, and thin layer wicking; and relevance of acid-base interactions to bioadhesion, microbial adhesion, polymer adhesion, and adhesion in reinforced polymer composites.
Author: Arthur T. Hubbard Publisher: CRC Press ISBN: 9780824707576 Category : Science Languages : en Pages : 1580
Book Description
This comprehensive reference collects fundamental theories and recent research from a wide range of fields including biology, biochemistry, physics, applied mathematics, and computer, materials, surface, and colloid science-providing key references, tools, and analytical techniques for practical applications in industrial, agricultural, and forensic processes, as well as in the production of natural and synthetic compounds such as foods, minerals, paints, proteins, pharmaceuticals, polymers, and soaps.
Author: D. E. Packham Publisher: John Wiley & Sons ISBN: 0470014210 Category : Technology & Engineering Languages : en Pages : 692
Book Description
This second edition of the successful Handbook of Adhesion provides concise and authoritative articles covering many aspects of the science and technology associated with adhesion and adhesives. It is intended to fill a gap between the necessarily simplified treatment of the student textbook and the full and thorough treatment of the research monograph and review article. The articles are structured in such a way, with internal cross-referencing and external literature references, that the reader can build up a broader and deeper understanding, as their needs require. This second edition includes many new articles covering developments which have risen in prominence in the intervening years, such as scanning probe techniques, the surface forces apparatus and the relation between adhesion and fractal surfaces. Advances in understanding polymer - polymer interdiffusion are reflected in articles drawing out the implications for adhesive bonding. In addition, articles derived from the earlier edition have been revised and updated where needed. Throughout the book there is a renewed emphasis on environmental implications of the use of adhesives and sealants. The scope of the Handbook, which features nearly 250 articles from over 60 authors, includes the background science - physics, chemistry and material science - and engineering, and also aspects of adhesion relevant to the use of adhesives, including topics such as: Sealants and mastics Paints and coatings Printing and composite materials Welding and autohesion Engineering design The Handbook of Adhesion is intended for scientists and engineers in both academia and industry, requiring an understanding of the various facets of adhesion.
Author: Bharat Bhushan Publisher: Springer Science & Business Media ISBN: 364235792X Category : Technology & Engineering Languages : en Pages : 485
Book Description
Examining the physical and technical foundation for recent progress with this technique, Applied Scanning Probe Methods offers a timely and comprehensive overview of SPM applications, now that industrial applications span topographic and dynamical surface studies of thin-film semiconductors, polymers, paper, ceramics, and magnetic and biological materials. First it lays the theoretical background of static and dynamic force microscopies, including sensor technology and tip characterization, contributions detail applications such as macro- and nanotribology, polymer surfaces, and roughness investigations. The final part on industrial research addresses special applications of scanning force nanoprobes such as atomic manipulation and surface modification, as well as single electron devices based on SPM.
Author: George Wypych Publisher: Elsevier ISBN: 1774670291 Category : Technology & Engineering Languages : en Pages : 579
Book Description
Encyclopedia of Polymer and Rubber Additives documents how polymer properties and performance can be improved through the use of additives, resulting in enhanced physical properties, stability, improved process and assembly, extended shelf life, enhanced purity, and minimized environmental impact. 88 groups of additives used by all segments of the polymer and rubber industries are included, with each group discussed in a systematic manner in order to facilitate easy information retrieval and comparison. Typical chemical structures, mechanisms of action, influences and interferences in complex formulations, and evidence of performance from experimental studies are each featured, with frequent references to monographic sources for even more in-depth knowledge of the subject. The companion volume, Databook of the Most Important Polymer and Rubber Additives is also available. It contains robust technical data on the most essential additives currently in use, and the two books are must-have references for anyone working with rubbers and plastics. - Provides a complete set of tables, classifications, and information related to a wide variety of commercially used additives for polymers and rubbers - Details the characteristics of hundreds of additives that can improve performance of physical properties, stability, and storage life, provide colorants, reduce costs, enhance purity, and minimize environmental impact - Facilitates information retrieval and comparison, discussing mechanisms of action, suitable features, modifications, evidence of performance from experimental studies, and more
Author: George Wypych Publisher: Elsevier ISBN: 1774670194 Category : Technology & Engineering Languages : en Pages : 329
Book Description
Handbook of Adhesion Promoters, Second Edition outlines known mechanisms, principles of use, and the applications of different groups of adhesion promoters, along with a discussion of the mechanisms that cause adhesion loss, such as corrosion, delamination, detachment, liquid penetration and peeling. Surface condition and treatment are also discussed, including different methods (cleaning, mechanical, plasma, microwave, flame, corona discharge, laser, UV, and chemical modification) for practical applications. Formulation of typical primers used in the application of adhesives, sealants, coatings, coil coatings, cosmetics, metal, optical devices, polymers and plastics are covered, with over 50 primer formulations provided. In addition, a full chapter is dedicated to the subject of polymer modification for improved adhesion, a method frequently used instead of the addition of adhesion promoters. The book's final chapters contain information on available evaluation and selection of adhesion promoters that work with different polymers (29), products (28), and those that help to prevent corrosion. - Provides detailed, essential data on adhesion promoters, including additives that are both widely used and recently introduced - Covers critical aspects involved in the application of adhesion promoters - Discusses mechanisms that result in adhesion loss, primer formulation, polymer modification for improved adhesion, and surface treatment methods - Supports readers in the selection of adhesion promoters, including detailed information on adhesion promoter properties, applications and their potential
Author: Michael Charles Wilson
Author: K. L. Mittal
Author: L.H. Lee
Author: 
Author: Arthur T. Hubbard
Author: D. E. Packham
Author: A. R. Bunsell
Author: Bharat Bhushan
Author: George Wypych
Author: George Wypych