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Lubricating Polymer Surfaces (Paperback)
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Lubricating Polymer Surfaces (Paperback)
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FROM THE PREFACE The surface modification of polymeric materials
has been the object of a large number of investigations, but little
attention has been paid to making a polymer surface frictionless or
slippery, and lubricating surfaces are practically unmentioned in
any books so far published, probably because of the relatively
minor importance of polymer friction in industrial applications. A
lubricating polymer surface is important, especially in marine and
biomedical technologies. For instance, biomaterials to be used for
catheterization on the urinary, tracheal, and cardiovascular
tracts, or for endoscopy, should have a surface with good handling
characteristics when dry and which preferably becomes slippery upon
contact with body liquids. Such a low-friction surface must enable
easy insertion and removal of the device from a patient. It would
further prevent mechanical injury to the mucous membranes and
minimize discomfort to the patient. Earlier approaches to providing
a low-friction surface were mostly simple applications involving
lubricants such as lidocaine jelly, silicone oil, or non-permanent
coating with low-friction materials such as polyethylene or
fluoroplastics. However, these substances cannot maintain a high
degree of slipperiness for the required duration of time, due to
the fact that they leach or disperse into the surrounding body
fluids. The aim of this book is to describe the principle of
lubrication, to outline a variety of methods for attaining a
lubricous surface, and to describe the characteristics and
properties of such lubricous surfaces. The technology for surface
modification of polymers by grafting will find other applications
than for lubrication, such as for improvement of the interfacial
adhesion in polymer composites.
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