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Pressure-Sensitive Adhesives: An Introductory Course

Published online by Cambridge University Press:  31 January 2011

Costantino Creton
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Abstract

Self-adhesive materials are called, in the adhesives trade, “pressure-sensitive adhesives” (PSAs). PSAs are designed to stick on almost any surface by simple contact under light pressure. This special class of adhesives does not undergo any physical transformation or chemical reaction during the bonding process. Because of this, the rheological properties of the adhesive must be finely tuned for the application, combining a carefully chosen polymer architecture and monomer composition with the proper addition of small molecules called tackifying resins. PSAs are soft, deformable solids and, depending on the formulation, easily form bridging fibrils between two surfaces upon debonding. They are safe to use and easy to handle and thus are increasingly replacing more conventional types of adhesives. In this article, we review both the primary material characteristics of PSAs and the main physical principles that make them work effectively.

Keywords

acrylicsblock copolymerspeelpolymerspressure-sensitive adhesivestackifying resins
Type
Research Article
Information
MRS Bulletin , Volume 28 , Issue 6: Materials Science of Adhesives: How to Bond Things Together , June 2003 , pp. 434 - 439
Copyright
Copyright © Materials Research Society 2003

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