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Miscibility and peel strength of acrylic pressure‐sensitive adhesives: Acrylic copolymer–tackifier resin systems
Author(s) -
Kim HyunJoong,
Mizumachi Hiroshi
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070560210
Subject(s) - miscibility , adhesive , materials science , copolymer , composite material , pressure sensitive , phase (matter) , acrylic resin , polymer chemistry , polymer , chemistry , organic chemistry , coating , layer (electronics)
Influence of miscibility between the components in acrylic pressure‐sensitive adhesives upon their peel strength P as a function of temperature has been studied. In case of miscible blend systems, incorporation of tackifier resins into the pressure‐sensitive adhesive systems results in the modification of the bulk properties, including T g , and a plot of P against Δ T gives a smooth master curve, where Δ T is defined as the difference between the temperature of peel test and T g of the blend. However, in case of immiscible blends where two phases exist in the system, no master curve can be obtained, and P of an acrylic copolymer decreases as the tackifier content increases. In this case, physical properties and adhesive performance will be governed by a matrix phase, and a dispersed phase will act as a filler. © 1995 John Wiley & Sons, Inc.