Investigation of the Nanoscale Morphology in Industrially Relevant Clearcoats of Waterborne Polymer Colloids by Means of Variable-Angle-Grazing Incidence Small-Angle X-ray Scattering

Vagias, A., Chen, Q., ten Brink, G. H., Hermida-Merino, D., Scheerder, J. & Portale, G., Sep-2019, In : ACS Applied Polymer Materials. 1, 9, p. 2482-2494 13 p.

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Soft polymer colloidal water suspensions are extremely important formulations for industrial applications such as water-based environmental-friendly coatings, paints, and adhesives. Homogeneity of the final coating at the micrometer and nanoscale is a crucial factor for optimal coating performance, such as barrier properties against solvent permeation. Here, we investigated the remnant nanostructure in slot-die-coated micrometer-sized thick clear coating films (clearcoats) of three different waterborne polymer colloids (pure soft, pure hard, and soft/hard multiphase), commonly utilized as primers in paint formulations [Mader et al. Prog. Org. Coat. 2011, 71, 123-135], using variable-angle grazing incidence small-angle X-ray scattering (GISAXS) complemented with cross-sectional atomic force microscopy (cs-AFM). After complete macroscopic drying, the coating films exhibit the presence of residual nanostructure with characteristic distance (d*) smaller than the original particle size and even smaller (

Original languageEnglish
Pages (from-to)2482-2494
Number of pages13
JournalACS Applied Polymer Materials
Issue number9
Publication statusPublished - Sep-2019


  • waterborne polymer coatings, acrylics, slot-die coating, variable-angle GISAXS, nanostructure, annealing, AFM, glass transition, LATEX FILM FORMATION, COPOLYMER THIN-FILMS, GLASS-TRANSITION, SURFACE, GISAXS, PAINT, DEFORMATION, POLYSTYRENE, SIMULATION, PARTICLES

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