Pressure-sensitive adhesives based on acrylics
Antosik, Adrian K.
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The purpose of this review is to describe the various aspects of pressure-sensitive adhesives based on acrylics. Acrylic polymers are the most commonly used self-adhesives, having replaced compounded natural or synthetic resin. The most important requirements for a PSA, such as high tackiness (adhesion by the touch); high cohesion (inner stability); high stickiness (adhesion); UV, solvent, and temperature stability are outstandingly fulfilled by acrylics. Solvent-borne, water-borne, or solvent-free acrylic PSAs offer several advantages such as excellent aging characteristics and resistance to elevated temperatures and plasticizers. Moreover, they exhibit exceptional optical clarity due to the polymer compatibility and non-yellowing and free of residual monomers. They also have the highest balance of adhesion and cohesion and excellent water resistance. Acrylics are harder than rubbers. Acrylic PSAs are used to manufacture a variety of products, such as mounting tapes, labels, protective films, masking tapes, banners. They found application in the production of a wide range of self-adhesive medical products (patches, bandages, tape operations, and biomedical electrodes). Acrylic pressure-sensitive tapes are used to connect a variety of materials such as metal, paper, plastic, glass, wood, and leather. This paper reviews knowledge and advances on the issue of pressure-sensitive adhesives based on acrylic.
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