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Title Improving the flame Retardance of polyisocyanurate foams by dibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide-containing additives
Date 22.08.2019
Number 57036
Abstract A series of new flame retardants (FR) based on dibenzo[d,f][1,3,2]dioxaphosphepine 6-oxide (BPPO) incorporating acrylates and benzoquinone were developed previously. In this study, we examine the fire behavior of the new flame retardants in polyisocyanurate (PIR) foams. The foam characteristics, thermal decomposition, and fire behavior are investigated. The fire properties of the foams containing BPPO-based derivatives were found to depend on the chemical structure of the substituents. We also compare our results to state-of-the-art non-halogenated FR such as triphenylphosphate and chemically similar phosphinate, i.e. 9,10-dihydro-9-oxa-10- phosphaphenanthrene-10-oxide (DOPO), based derivatives to discuss the role of the phosphorus oxidation state.
URL https://doi.org/10.3390/POLYM11081242
Publisher Polymers
Identifier
Citation Polymers 11 (2019) 1242
DOI https://doi.org/10.3390/POLYM11081242
Authors Lenz, J. ; Pospiech, D. ; Paven, M. ; Albach, R. ; Günther, M. ; Schartel, B. ; Voit, B.
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