Leveling kinetics of coatings with solvent evaporation and non-Newtonian rheology

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

Standard

Leveling kinetics of coatings with solvent evaporation and non-Newtonian rheology. / Wang, Xueting; Huang, Yixin; Erik Weinell, Claus; Olsen, Stefan Møller; Kiil, Søren.

In: Progress in Organic Coatings, Vol. 132, 2019, p. 169-177.

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

Harvard

APA

CBE

MLA

Vancouver

Author

Bibtex

@article{3d5deb0d5aca4ba1b937b921fca9dc43,
title = "Leveling kinetics of coatings with solvent evaporation and non-Newtonian rheology",
abstract = "In this work, two biocide-based antifouling (AF) coatings (a model and a full commercial system) were considered in a leveling study. Using an optical three-dimensional (3D) profilometer, an advanced rheometer, and evaporation rate measurements, the transient effects of wet film thickness, application wavelength, and coating viscosity on leveling could be investigated. The model coating was able to level faster and had better final leveling performance than the commercial coating. This was attributed to the different viscosity profiles of the two coatings, the main difference being that the commercial coating contained additives (thixotropic and wetting agents) that affect the coating rheology. A semi-empirical model, based on the so-called Orchard equation for ideal conditions, but modified here to take into account solvent evaporation and non-Newtonian rheology, was developed for the leveling kinetics. Due to the differences in rheological behavior for the two coatings considered, adjustable model parameters needed to be fitted for each coating case. Overall, viscosity build-up was found to be the dominating parameter for leveling.",
keywords = "Coating, Film thickness, Leveling, Solvent evaporation, Viscosity, Wavelength",
author = "Xueting Wang and Yixin Huang and {Erik Weinell}, Claus and Olsen, {Stefan M{\o}ller} and S{\o}ren Kiil",
year = "2019",
doi = "10.1016/j.porgcoat.2019.03.033",
language = "English",
volume = "132",
pages = "169--177",
journal = "Progress in Organic Coatings",
issn = "0300-9440",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Leveling kinetics of coatings with solvent evaporation and non-Newtonian rheology

AU - Wang, Xueting

AU - Huang, Yixin

AU - Erik Weinell, Claus

AU - Olsen, Stefan Møller

AU - Kiil, Søren

PY - 2019

Y1 - 2019

N2 - In this work, two biocide-based antifouling (AF) coatings (a model and a full commercial system) were considered in a leveling study. Using an optical three-dimensional (3D) profilometer, an advanced rheometer, and evaporation rate measurements, the transient effects of wet film thickness, application wavelength, and coating viscosity on leveling could be investigated. The model coating was able to level faster and had better final leveling performance than the commercial coating. This was attributed to the different viscosity profiles of the two coatings, the main difference being that the commercial coating contained additives (thixotropic and wetting agents) that affect the coating rheology. A semi-empirical model, based on the so-called Orchard equation for ideal conditions, but modified here to take into account solvent evaporation and non-Newtonian rheology, was developed for the leveling kinetics. Due to the differences in rheological behavior for the two coatings considered, adjustable model parameters needed to be fitted for each coating case. Overall, viscosity build-up was found to be the dominating parameter for leveling.

AB - In this work, two biocide-based antifouling (AF) coatings (a model and a full commercial system) were considered in a leveling study. Using an optical three-dimensional (3D) profilometer, an advanced rheometer, and evaporation rate measurements, the transient effects of wet film thickness, application wavelength, and coating viscosity on leveling could be investigated. The model coating was able to level faster and had better final leveling performance than the commercial coating. This was attributed to the different viscosity profiles of the two coatings, the main difference being that the commercial coating contained additives (thixotropic and wetting agents) that affect the coating rheology. A semi-empirical model, based on the so-called Orchard equation for ideal conditions, but modified here to take into account solvent evaporation and non-Newtonian rheology, was developed for the leveling kinetics. Due to the differences in rheological behavior for the two coatings considered, adjustable model parameters needed to be fitted for each coating case. Overall, viscosity build-up was found to be the dominating parameter for leveling.

KW - Coating

KW - Film thickness

KW - Leveling

KW - Solvent evaporation

KW - Viscosity

KW - Wavelength

U2 - 10.1016/j.porgcoat.2019.03.033

DO - 10.1016/j.porgcoat.2019.03.033

M3 - Journal article

VL - 132

SP - 169

EP - 177

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

SN - 0300-9440

ER -