Hydrogenated rosin ester latexes/waterborne polyacrylate blends for pressure‐sensitive adhesives

Abstract

Diethylene glycol ester of hydrogenated rosin (DGE‐HR) emulsion was prepared via phase inversion method and then blended with waterborne (wb) polyacrylate for pressure‐sensitive adhesives (PSAs). The preparation conditions of DGE‐HR emulsion were studied. DGE‐HR emulsion with an average particle size of about 220 nm was obtained. Furthermore, the thermal, adhesive, and viscoelastic properties and the morphology of DGE‐HR/polyacrylate composite were investigated. Thermal analysis indicated that glass transition temperatures (Tg) of the DGE‐HR/polyacrylate blends became higher as the DGE‐HR content increased and DGE‐HR did not have a significant influence on thermal stability of the blend films. Atomic Force Microscopy (AFM) observation revealed that the DGE‐HR particles added had a good miscibility with acrylic particles. Additionally, for these tackified acrylic PSAs, positive correlations between mechanical performance and viscoelastic response at bonding and debonding frequencies were also found. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42965.

Construction of Waterborne Thermoplastic Polymeric Adhesives Based on Hierarchical Hydrogen Bonds in Miniemulsions

“…Promisingly, the adhesive layers with a high UPy content treated at elevated temperatures had strong adhesion and cohesion; for example, TPA-U 3.3 A 12 has high peel strength with adhesive failure (around 17.2 N/25 mm) and high shear strength (around 1.31 MPa) after pretreatment at 150 °C, embodying superior comprehensive bonding performance, exceeding most of the reported waterborne acrylic adhesives and approaching some high-performance solvent-borne counterparts. ,,,− …”

Advances in Rosin-Based Chemicals: The Latest Recipes, Applications and Future Trends

“…The review contains short, but exhaustive descriptions of rosin-derived compound syntheses published in the scientific literature from the JCR list since 2008. It does not include older achievements in the field of rosin, that were widely described in previous review literature [1,65] and commercialized [66,67,68,69,70,71,72,73,74,75,76,77,78,79,80]. It includes preparations of completely new chemicals, as well as new ways to synthesize already known compounds.…”

Intrinsic kinetics study of rosin hydrogenation on a nickel catalyst supported on spent equilibrium catalyst

“…3 Because of their excellent features, HR and its derivatives are widely used as an additive and modier in various applications, especially in pharmaceuticals 4 and pressure-sensitive adhesives. 5,6 Because of the steric effect of the tricyclic skeleton structure and the high viscosity, the hydrogenation reaction of rosin is usually performed at high temperatures (200-270 C), high H 2 pressure, or high catalyst mass over a precious metal (Pd, Ru, Rh, charcoal support), NiMo/Al 2 O 3 , Ni-Y zeolite, or ammonium tetrathiomolybdate catalyst. [7][8][9] Pd/C has been regarded as the best catalyst for the hydrogenation reaction of rosin, but it has the common disadvantages of noble metal catalysts including high cost and limited availability.…”