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Design of Nanostructured Waterborne Adhesives with Improved Shear Resistance

2010; Wiley; Volume: 296; Issue: 1 Linguagem: Inglês

10.1002/mame.201000265

1439-2054

Amel Bellamine, Elise Degrandi, Matthias Gerst, Rüdiger Stark, Cornelis Petrus Beyers, Costantino Creton,

Advanced Polymer Synthesis and Characterization

Abstract 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. magnified image