By Istvan Benedek
Investigates and summarizes crucial positive factors of pressure-sensitive adhesive expertise and addresses the phenomena of clinical foundation. The textual content makes a speciality of self-adhesive labels because the most intricate self-adhesive laminate, but additionally covers different PSA-coated items. It explores present commercial difficulties and their functional suggestions, evaluates the similarities and changes within the manufacture and alertness of universal plastics and adhesive as opposed to PSA, and extra.
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Extra resources for Pressure-sensitive adhesives technology
Sample text
Publisher : CRC Press isbn10 | asin : 0824797655 print isbn13 : 9780824797652 ebook isbn13 : 9780585157580 language : English subject Adhesives. 3 subject : Adhesives. Page i Pressure-Sensitive Adhesives Technology Istvan Benedek Industrial Consultant Wuppertal, Germany Luc J. Heymans MACtac Grimbergen, Belgium Marcel Dekker, Inc. New YorkBaselHong Kong Page ii Library of Congress Cataloging-in-Publication Data Benedek, Istvan. Pressure-sensitive adhesives technology / Istvan Benedek, Luc J. Heymans.
Most applications further require that they can be easily removed from the surface to which they were applied through a light pulling force. Thus PSAs are characterized by a built-in capacity to achieve this instantaneous adhesion to a surface without activation, such as a treatment with solvents or heat, and also by having sufficient internal strength so that the adhesive material will not break up before the bond between the adhesive material and the surface ruptures. The bonding and the debonding of PSAs are energy driven phenomena.
Very high modulus adhesives do not possess sufficient conformability to exhibit pressure-sensitive tack. The optimum tack properties of PSAs are obtained when the room temperature modulus falls within the range of 5 × 105 to 1 × 105 Pa, and the Tg lies between -10 to +10°C [22]. Hamed and Hsieh [23] showed that for a given total bonded area, test specimens containing noncontact regions of sufficiently small scale can exhibit a higher peeling force than those in which the noncontact ones are large.