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Design of Nanostructured Waterborne Adhesives with Improved Shear Resistance
Author(s) -
Bellamine Amel,
Degrandi Elise,
Gerst Matthias,
Stark Rüdiger,
Beyers Cornelis,
Creton Costantino
Publication year - 2011
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.201000265
Subject(s) - materials science , composite material , adhesive , softening , polymer , dynamic mechanical analysis , shear (geology) , shear modulus , modulus , layer (electronics)
The mechanical and adhesive properties of a series of model nanostructured waterborne PSA films have been characterized. The base polymer composition of the latex has been kept constant but systematic modifications have been carried out: the introduction of nanoparticles localized at the interfaces between particles, and the incorporation of a crosslinking agent. The mechanical properties have been characterized and show that the most effective modifications result in an increase in the low‐frequency modulus in the small‐strain regime and in a more pronounced softening and strain‐rate‐dependent behavior in the large‐strain regime. In industrial standard tests, this combination gives a dramatically increased resistance to shear while maintaining a high value of peel resistance.