Intumescent polypropylene in extreme fire conditions

Bourbigot, Serge; Sarazin, Johan; Bensabath, Tsilla

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1016/j.firesaf.2020.103082

Permalink :

http://hdl.handle.net/20.500.12210/29707

Title :

Intumescent polypropylene in extreme fire conditions

Author(s) :

Bourbigot, Serge [Auteur]

Unité Matériaux et Transformations - UMR 8207 [UMET]
Sarazin, Johan [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bensabath, Tsilla [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Fire Safety Journal

Pages :

103082

Publisher :

Elsevier BV

Publication date :

2020-05-03

ISSN :

0379-7112

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

The paper deals with intumescent polypropylene (PP) undergoing extreme fire (burn-through test with heat flux higher than 100 kW/m2). The purpose of this unusual approach is to explore the possibility to design intumescent ...
Show more >The paper deals with intumescent polypropylene (PP) undergoing extreme fire (burn-through test with heat flux higher than 100 kW/m2). The purpose of this unusual approach is to explore the possibility to design intumescent plastic (here PP) resisting to burn-through test. A combination of commercial intumescent flame retardants (ammonium polyphosphate-based compounds containing a char former; AP766 (AP) and FlameOff (FO) of the companies Clariant and FlameOff Inc) with zinc borate (supplied by US Borax, ZB) or Kemgard (combination of ZB and molybdate supplied by Huber, KZ) was incorporated in PP. Use of ZB and KZ as synergists in FO formulations increases dramatically the time of piercing (formation of hole through the plaque of polymer at 80 s without ZB or KZ vs. 280 s with KZ) at the burn-through test (heat flux ¼ 116 kW/m2, propane burner) while the combination with AP does not show any benefit. Analyses of the residues obtained at different times of combustion by solid state nuclear magnetic resonance (NMR) of 31P, 11B and 13C shows the formation of borophosphates creating a glass reinforcing the intumescent char: it acts as a ‘glue’ providing flexibility and cohesion to the char.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

European Project :

MULTI-CONCEPTUAL DESIGN OF FIRE BARRIER: A SYSTEMIC APPROACH

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2020-08-12T12:24:39Z
2020-08-31T13:54:44Z

Files

FSJ 2020 - Intumescent PP on extreme fire.pdf
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Version	Link	Modification date
3	20.500.12210/29707	2021-05-28T08:59:06Z
2	20.500.12210/29707.2*	2020-08-31T13:52:44Z
1	20.500.12210/29707.1	2020-08-12T12:24:39Z

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Intumescent polypropylene in extreme fire ...

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