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- Title
Modification of Adhesive and Latex Properties for Starch Nanoparticle‐Based Pressure Sensitive Adhesives.
- Authors
Zhang, Yujie; Cunningham, Michael F.; Dubé, Marc A.
- Abstract
Starch nanoparticle (SNP)‐based pressure sensitive adhesives (PSAs) with core‐shell particle morphology (starch nanoparticle core/acrylic polymer shell) are produced via seeded, semi‐batch emulsion polymerization at 15 wt% SNP loading (relative to total polymer weight) and 40 wt% latex solids. Crosslinker and chain transfer agent (CTA) are introduced to the acrylic shell polymer formulation at a range of concentrations according to a 32 factorial design to tailor the latex and adhesive properties of SNP‐based latexes. The crosslinker and CTA show no significant effect on polymerization kinetics, particle size, and viscosity. Latex gel content is predicted using an empirical model, which is a function of crosslinker and CTA concentration. Both the gel content and glass transition temperature strongly affect the adhesive properties (tack, peel strength, and shear strength) of the SNP‐based latex films. 3D response surfaces for the adhesive properties are constructed to facilitate the design of SNP‐based PSAs with desired properties.
- Subjects
EMULSION polymerization; PRESSURE-sensitive adhesives; ADHESIVES; LATEX; STARCH; GLASS transition temperature; FACTORIAL experiment designs; SHEAR strength
- Publication
Macromolecular Reaction Engineering, 2020, Vol 14, Issue 1, p1
- ISSN
1862-832X
- Publication type
Article
- DOI
10.1002/mren.201900023