Quantification of simultaneous solvent evaporation and chemical curing in thermoset coatings

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The mechanisms of simultaneous solvent evaporation and film formation in high-solids thermoset coatings are considered. The relevant phenomena, chemical reactions, solvent diffusion and evaporation, gelation, vitrification, network mobility restrictions, and crosslinking, are quantified and a mathematical model for a curing film is presented, which does not violate the local volume balance. For model verification, a previous investigation with a polyisocyanate and a polyol in methyl amyl ketone solvent, catalyzed by an organotin compound, was selected. In contrast to earlier modelling studies, simulations can match and explain detailed experimental data. For exemplification, simulations are used to analyse the influence of the various rate phenomena on the behavior of the solvent-based polyisocyanate/polyol film.
Original languageEnglish
JournalJournal of Coatings Technology and Research
Volume7
Issue number5
Pages (from-to)569-586
ISSN1547-0091
DOIs
Publication statusPublished - 2010

Keywords

  • Glass transition temperature
  • Network formation
  • Polyurethane
  • Solvent trapping
  • Two-component
  • Crosslink density

Cite this

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title = "Quantification of simultaneous solvent evaporation and chemical curing in thermoset coatings",
abstract = "The mechanisms of simultaneous solvent evaporation and film formation in high-solids thermoset coatings are considered. The relevant phenomena, chemical reactions, solvent diffusion and evaporation, gelation, vitrification, network mobility restrictions, and crosslinking, are quantified and a mathematical model for a curing film is presented, which does not violate the local volume balance. For model verification, a previous investigation with a polyisocyanate and a polyol in methyl amyl ketone solvent, catalyzed by an organotin compound, was selected. In contrast to earlier modelling studies, simulations can match and explain detailed experimental data. For exemplification, simulations are used to analyse the influence of the various rate phenomena on the behavior of the solvent-based polyisocyanate/polyol film.",
keywords = "Glass transition temperature, Network formation, Polyurethane, Solvent trapping, Two-component, Crosslink density",
author = "S{\o}ren Kiil",
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publisher = "Springer New York",
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}

Quantification of simultaneous solvent evaporation and chemical curing in thermoset coatings. / Kiil, Søren.

In: Journal of Coatings Technology and Research, Vol. 7, No. 5, 2010, p. 569-586.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Quantification of simultaneous solvent evaporation and chemical curing in thermoset coatings

AU - Kiil, Søren

PY - 2010

Y1 - 2010

N2 - The mechanisms of simultaneous solvent evaporation and film formation in high-solids thermoset coatings are considered. The relevant phenomena, chemical reactions, solvent diffusion and evaporation, gelation, vitrification, network mobility restrictions, and crosslinking, are quantified and a mathematical model for a curing film is presented, which does not violate the local volume balance. For model verification, a previous investigation with a polyisocyanate and a polyol in methyl amyl ketone solvent, catalyzed by an organotin compound, was selected. In contrast to earlier modelling studies, simulations can match and explain detailed experimental data. For exemplification, simulations are used to analyse the influence of the various rate phenomena on the behavior of the solvent-based polyisocyanate/polyol film.

AB - The mechanisms of simultaneous solvent evaporation and film formation in high-solids thermoset coatings are considered. The relevant phenomena, chemical reactions, solvent diffusion and evaporation, gelation, vitrification, network mobility restrictions, and crosslinking, are quantified and a mathematical model for a curing film is presented, which does not violate the local volume balance. For model verification, a previous investigation with a polyisocyanate and a polyol in methyl amyl ketone solvent, catalyzed by an organotin compound, was selected. In contrast to earlier modelling studies, simulations can match and explain detailed experimental data. For exemplification, simulations are used to analyse the influence of the various rate phenomena on the behavior of the solvent-based polyisocyanate/polyol film.

KW - Glass transition temperature

KW - Network formation

KW - Polyurethane

KW - Solvent trapping

KW - Two-component

KW - Crosslink density

U2 - 10.1007/s11998-010-9246-5

DO - 10.1007/s11998-010-9246-5

M3 - Journal article

VL - 7

SP - 569

EP - 586

JO - Journal of Coatings Technology and Research

JF - Journal of Coatings Technology and Research

SN - 1547-0091

IS - 5

ER -