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Polymers are permeable, whilst ceramics, glasses and metals are
gener ally impermeable. This may seem a disadvantage in that
polymeric containers may allow loss or contamination of their
contents and aggressive substances such as water will diffuse into
polymeric struc tures such as adhesive joints or fibre-reinforced
composites and cause weakening. However, in some cases permeability
is an advantage, and one particular area where this is so is in the
use of polymers in drug delivery systems. Also, without permeable
polymers, we would not enjoy the wide range of dyed fabrics used in
clothing and furnishing. The fundamental reason for the
permeability of polymers is their relatively high level of
molecular motion, a factor which also leads to their high levels of
creep in comparison with ceramics, glasses and metals. The aim of
this volume is to examine some timely applied aspects of polymer
permeability. In the first chapter basic issues in the mathema tics
of diffusion are introduced, and this is followed by two chapters
where the fundamental aspects of diffusion in polymers are
presented. The following chapters, then, each examine some area of
applied science where permeability is a key issue. Each chapter is
reasonably self-contained and intended to be informative without
frequent outside reference. This inevitably leads to some
repetition, but it is hoped that this is not excessive."
The use of adhesives has many advantages over other methods of
fastening. Presenting a smooth exterior, spreading of the load and
ease of joining thin or dissimilar materials are all reasons why
the use of adhesives for bonding structures is steadily growing and
finding new applications. Structural Adhesive Joints in Engineering
is a concise guide to adhesive joints within structures, especially
those capable of bearing high loads. The book covers all aspects of
design, materials selection and testing, including the physical
properties and cure-chemistry of structural adhesives and how to
select adhesives for particular applications; surface preparation
by physical or chemical methods (with or without the use of primers
and coupling agents); and new sections on surface analysis and
water durability. There is also a detailed guide to stresses in
adhesive joints and joint design. Thoroughly revised and updated
since the first edition, the Second Edition contains new sections
on recent topics of importance, such as water durability. This book
contains everyhting an engineer needs to know to be able to design
and produce adhesively bonded joints that are required to carry
significant loads. Advantages and disadvantages are given, together
with a sufficient description of the necessary mechanics and
chemistry involved to enable the designer to make a sound
engineering judgement in each particular case.
Polymers are permeable, whilst ceramics, glasses and metals are
gener ally impermeable. This may seem a disadvantage in that
polymeric containers may allow loss or contamination of their
contents and aggressive substances such as water will diffuse into
polymeric struc tures such as adhesive joints or fibre-reinforced
composites and cause weakening. However, in some cases permeability
is an advantage, and one particular area where this is so is in the
use of polymers in drug delivery systems. Also, without permeable
polymers, we would not enjoy the wide range of dyed fabrics used in
clothing and furnishing. The fundamental reason for the
permeability of polymers is their relatively high level of
molecular motion, a factor which also leads to their high levels of
creep in comparison with ceramics, glasses and metals. The aim of
this volume is to examine some timely applied aspects of polymer
permeability. In the first chapter basic issues in the mathema tics
of diffusion are introduced, and this is followed by two chapters
where the fundamental aspects of diffusion in polymers are
presented. The following chapters, then, each examine some area of
applied science where permeability is a key issue. Each chapter is
reasonably self-contained and intended to be informative without
frequent outside reference. This inevitably leads to some
repetition, but it is hoped that this is not excessive."
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Faust
Stephen Phillips, J. Comyns 1849-1916 Carr
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R912
Discovery Miles 9 120
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Ships in 10 - 15 working days
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Faust (Paperback)
Stephen Phillips, J. Comyns 1849-1916 Carr
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R598
Discovery Miles 5 980
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Ships in 10 - 15 working days
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Papers Delivered October 15, 1958 In Washington, D. C. To The 20th
National Convention Of The Canon Law Society Of America.
This is a reproduction of a book published before 1923. This book
may have occasional imperfections such as missing or blurred pages,
poor pictures, errant marks, etc. that were either part of the
original artifact, or were introduced by the scanning process. We
believe this work is culturally important, and despite the
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the preservation process, and hope you enjoy this valuable book.
This scarce antiquarian book is included in our special Legacy
Reprint Series. In the interest of creating a more extensive
selection of rare historical book reprints, we have chosen to
reproduce this title even though it may possibly have occasional
imperfections such as missing and blurred pages, missing text, poor
pictures, markings, dark backgrounds and other reproduction issues
beyond our control. Because this work is culturally important, we
have made it available as a part of our commitment to protecting,
preserving and promoting the world's literature.
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone
This scarce antiquarian book is included in our special Legacy
Reprint Series. In the interest of creating a more extensive
selection of rare historical book reprints, we have chosen to
reproduce this title even though it may possibly have occasional
imperfections such as missing and blurred pages, missing text, poor
pictures, markings, dark backgrounds and other reproduction issues
beyond our control. Because this work is culturally important, we
have made it available as a part of our commitment to protecting,
preserving and promoting the world's literature.
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