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Silicone Liner‐Free Pressure‐Sensitive Adhesive Labels
Author(s) -
Empereur Johanne,
Belgacem Mohamed Naceur,
Chaussy Didier
Publication year - 2008
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200700292
Subject(s) - adhesive , coacervate , materials science , pressure sensitive , silicone , rheology , silicone oil , fourier transform infrared spectroscopy , composite material , chemical engineering , layer (electronics) , engineering
Pressure‐sensitive adhesives (PSA) were microencapsulated using simple and complex coacervation and aminoplaste. The microcapsules thus prepared were characterized by FTIR spectroscopy, particle size distribution, rheological behavior, and peeling tests. The microcapsules were isolated and found to be out of sticky indicating that the PSAs were indeed encapsulated. The prepared suspensions were deposited at the surface of a paper sheets and the dried labels were then pressed against each other. The ensuing complex was then characterized in terms of peeling forces and showed that the encapsulation using aminoplaste technique of a commercial PSA yielded peel energy of 170 J · m −2 , which constitutes the recovering of about 68% of the adhesive power of the original nonencapsulated PSA.