Article (Scientific journals)
Metallic phytates as efficient bio-based phosphorous flame retardant additives for poly(lactic acid)
Costes, Lucie; Laoutid, Fouad; Dumazert, L et al.
2015In Polymer Degradation and Stability, 119, p. 217-227
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Abstract :
[en] In this study, we evaluated the potential flame retardant effect of different metallic phytates as bio sourced phosphorous additives for poly(lactic acid) (PLA). Starting from sodium phytate, the sodium cations were replaced by aluminum, iron or lanthanum cations as attested by elemental analysis. PLA metallic phytate composites containing 20 or 30 wt% of additives were produced by melt blending in an internal mixer and their fire properties, thermogravimetric resistance have been characterized as well as the PLA chain degradation occurring during melt processing. The most significant flame retardant effect, observed by cone calorimeter test, was obtained when aluminum phytate was used. Cone calo rimeter testing combined with pyrolysis combustion flow calorimetry (PCFC) analysis indicated that the barrier effect was more significant in the case of PLA filled with aluminum phytate. However, aluminum phytate proved to be responsible for PLA chain degradation during melt processing. Combinations of metallic phytate and native sodium phytate overcame this negative effect and allowed for limiting the thermal degradation of PLA during melt processing while preserving good fire performances, i.e. sig nificant pHRR reduction and V-2 classification in UL-94 te
Research center :
CIRMAP - Centre d'Innovation et de Recherche en Matériaux Polymères
Disciplines :
Chemistry
Author, co-author :
Costes, Lucie ;  Université de Mons > Faculté Polytechnique > Génie des Procédés chimiques et biochimiques
Laoutid, Fouad ;  Université de Mons > Unités externes > Materia Nova ASBL
Dumazert, L
Lopez-Cuesta, J.-M.
Brohez, Sylvain ;  Université de Mons > Faculté Polytechnique > Génie des Procédés chimiques et biochimiques
Delvosalle, Christian ;  Université de Mons > Faculté Polytechnique > Génie des Procédés chimiques et biochimiques
Dubois, Philippe  ;  Université de Mons > Faculté des Sciences > Matériaux Polymères et Composites
Language :
English
Title :
Metallic phytates as efficient bio-based phosphorous flame retardant additives for poly(lactic acid)
Publication date :
30 May 2015
Journal title :
Polymer Degradation and Stability
ISSN :
0141-3910
eISSN :
1873-2321
Publisher :
Elsevier, Netherlands
Volume :
119
Pages :
217-227
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
S816 - Matériaux Polymères et Composites
F505 - Génie des Procédés chimiques et biochimiques
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
R500 - Institut des Sciences et du Management des Risques
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since 28 July 2015

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