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Flame retardant polyester by combination of organophosphorus compounds and an NOR radical forming agent

Goedderz, Daniela and Weber, Lais and Markert, Daniel and Schießer, Alexander and Fasel, Claudia and Riedel, Ralf and Altstädt, Volker and Bethke, Christian and Fuhr, Olaf and Puchtler, Florian and Breu, Josef and Döring, Manfred (2019):
Flame retardant polyester by combination of organophosphorus compounds and an NOR radical forming agent.
In: Journal of Applied Polymer Science, Wiley Periodicals, Inc., p. 47876, 136, ISSN 0021-8995, DOI: 10.1002/app.47876, [Online-Edition: https://onlinelibrary.wiley.com/doi/abs/10.1002/app.47876],
[Article]

Abstract

Polymer materials with different surface‐to‐volume ratios require different mechanisms of flame retardants regarding condensed phase and gas phase activity. The flame retardant formulations in poly(ethylene terephthalate) (PET) are investigated regarding a condensed phase and gas phase activity by using thermogravimetric analysis (TGA), TG‐mass spectrometry (MS), TG‐Fourier transform infrared (FTIR), UL94, cone calorimeter and scanning electron microscopy–energy‐dispersive X‐ray spectrometer measurements. The flame retardant formulations containing phosphates, phosphonates, and phosphinates as flame retardants are analyzed by using a simultaneous analysis consisting of a differential thermal analysis‐TGA device which is in situ coupled to FTIR and MS. All analysis methods show a gas phase activity for the phosphonate (PCO 910), a condensed phase activity for the phosphate (3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide, (SPDPP) and a mixed condensed and gas phase activity for the new synthesized phosphate and 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene 10‐oxide containing flame retardant 3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide (SPDPDOM). The fire behavior of PCO 910 can be improved by adding O,O'‐Terephthaloyl‐bis‐N,N'‐naphthalimide ester as NOR radical‐forming agent (NOR‐RF) reaching a total amount of 3 wt % of both active agents for a UL94 V‐0 classification in PET.

Item Type: Article
Erschienen: 2019
Creators: Goedderz, Daniela and Weber, Lais and Markert, Daniel and Schießer, Alexander and Fasel, Claudia and Riedel, Ralf and Altstädt, Volker and Bethke, Christian and Fuhr, Olaf and Puchtler, Florian and Breu, Josef and Döring, Manfred
Title: Flame retardant polyester by combination of organophosphorus compounds and an NOR radical forming agent
Language: English
Abstract:

Polymer materials with different surface‐to‐volume ratios require different mechanisms of flame retardants regarding condensed phase and gas phase activity. The flame retardant formulations in poly(ethylene terephthalate) (PET) are investigated regarding a condensed phase and gas phase activity by using thermogravimetric analysis (TGA), TG‐mass spectrometry (MS), TG‐Fourier transform infrared (FTIR), UL94, cone calorimeter and scanning electron microscopy–energy‐dispersive X‐ray spectrometer measurements. The flame retardant formulations containing phosphates, phosphonates, and phosphinates as flame retardants are analyzed by using a simultaneous analysis consisting of a differential thermal analysis‐TGA device which is in situ coupled to FTIR and MS. All analysis methods show a gas phase activity for the phosphonate (PCO 910), a condensed phase activity for the phosphate (3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide, (SPDPP) and a mixed condensed and gas phase activity for the new synthesized phosphate and 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene 10‐oxide containing flame retardant 3,9‐bis(phenoxy)‐2,4,8,10‐tetraoxa‐3,9‐diphosphaspiro‐5,5‐undecane‐3,9‐dioxide (SPDPDOM). The fire behavior of PCO 910 can be improved by adding O,O'‐Terephthaloyl‐bis‐N,N'‐naphthalimide ester as NOR radical‐forming agent (NOR‐RF) reaching a total amount of 3 wt % of both active agents for a UL94 V‐0 classification in PET.

Journal or Publication Title: Journal of Applied Polymer Science
Volume: 136
Publisher: Wiley Periodicals, Inc.
Uncontrolled Keywords: phosphorus‐containing flame retardants, poly(ethylene terephthalate), radical forming agent, synergism
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
07 Department of Chemistry
07 Department of Chemistry > Fachgebiet Makromolekulare Chemie
Date Deposited: 29 May 2019 05:19
DOI: 10.1002/app.47876
Official URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/app.47876
Funders: Röchling Stiftung GmbH, German Science Foundation, Grant Number: 278300368
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