Influence of the catalyst concentration on the chemical structure, the physical properties and the fire behavior of rigid polyisocyanurate foams

Lenz J, Pospiech D, Paven M, Albach RW, Voit B (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Polymer Degradation and Stability Elsevier

Book Volume: 177

Article Number: 109168

DOI: 10.1016/j.polymdegradstab.2020.109168

Abstract

In this paper, the role of trimerization in polyisocyanurate (PIR) foams and its impact on the physical properties and the fire behavior is discussed. The degree of trimerization was systematically varied using different catalyst concentrations. The enhanced formation of isocyanurate structures through higher catalyst concentrations leads to higher mechanical stability and improved fire behavior as measured by vertical flame spread according to DIN4102 and under forced flaming conditions in the cone calorimeter. A clear correlation between catalyst content, chemical structure of the foams (relative concentration of isocyanurate units representing crosslinking) and fire behavior is found.

Involved external institutions

Leibniz-Institut für Polymerforschung Dresden e. V. DE Germany (DE) Covestro Deutschland AG DE Germany (DE)

How to cite

APA:

Lenz, J., Pospiech, D., Paven, M., Albach, R.W., & Voit, B. (2020). Influence of the catalyst concentration on the chemical structure, the physical properties and the fire behavior of rigid polyisocyanurate foams. Polymer Degradation and Stability, 177. https://doi.org/10.1016/j.polymdegradstab.2020.109168

MLA:

Lenz, Johannes, et al. "Influence of the catalyst concentration on the chemical structure, the physical properties and the fire behavior of rigid polyisocyanurate foams." Polymer Degradation and Stability 177 (2020).

BibTeX: Download