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- Title
High-Shear-Strength Waterborne Polyurethane/Acrylic Soft Adhesives.
- Authors
Degrandi‐Contraires, Elise; Lopez, Aitziber; Reyes, Yuri; Asua, José M.; Creton, Costantino
- Abstract
Urethane/acrylic hybrid latex particles are prepared by miniemulsion polymerization for an application as soft adhesives. The polymerization of the acrylic monomers and grafting of an isocyanate functionalized PU on a hydroxyl functionalized monomer (HEMA) take place simultaneously, resulting in a complex PU/acrylic network while avoiding any macroscopic phase separation. Its structure can be tuned by changing the extent of grafting and a specific model is applied to analyze the final polymer microstructure. The resulting materials have a low level of adhesion but display an exceptionally high resistance to shear. Two parameters are varied: the fraction of HEMA in the monomer composition and the diol concentration.
- Subjects
POLYURETHANES; ACRYLIC compounds; ISOCYANATES; ADHESIVES; SHEAR strength
- Publication
Macromolecular Materials & Engineering, 2013, Vol 298, Issue 6, p612
- ISSN
1438-7492
- Publication type
Article
- DOI
10.1002/mame.201200106