Titre :

One pot flame retardant and weathering resistant coatings for plastics: a novel approach

Auteur(s) :

Beaugendre, A. [Auteur]
174496|||Unité Matériaux et Transformations - UMR 8207 [UMET] (OLD)
Saidi, S. [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Degoutin, Stephanie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bellayer, Séverine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Pierlot, Christel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Duquesne, Sophie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Casetta, Mathilde [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Jimenez, Maude [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Titre de la revue :

RSC Advances

Numéro :

7

Pagination :

40682-40694

Date de publication :

2017-08-11

Discipline(s) HAL :

Sciences de l'ingénieur [physics]/Matériaux
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

The self-stratifying approach is a one step process allowing the formation of a complex laminated coating structure at the surface of plastics or other substrates, combining optimized surface and adhesion properties. These ...
Lire la suite >The self-stratifying approach is a one step process allowing the formation of a complex laminated coating structure at the surface of plastics or other substrates, combining optimized surface and adhesion properties. These coatings have already been developed for various application fields but have never been considered for fire retardant purposes, whatever the substrate involved. In this work, the self-layering concept has been used to make polycarbonate fire retardant, using a mixture of epoxy and fluoropolymer resins, and iron oxide as flame retardant additive (10 wt%). Self-stratification was evidenced by microscopic analyses. The flame retardant properties were evaluated according to Limiting Oxygen Index (LOI), UL-94 and Mass Loss Calorimetry (MLC). Weathering resistance by accelerated UV, thermal and humidity exposure was also considered. In the first part, the effect of solvent on the self-layering process was investigated. It was shown that the system diluted in a blend of butylacetate : xylene (1 : 1 ratio) exhibits a perfect stratification and excellent adhesion onto polycarbonate. In such a system, an outstanding improvement of the fire retardant properties (V0 rating at UL-94 and 32 vol% at LOI), unaffected by weathering (both UV and temperature/humidity exposure), was observed when a 200 μm wet thick coating was applied. The coating allows the formation of a protective barrier and the presence of metal particles avoids dripping and promotes a charring effect.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2019-05-16T17:20:56Z
2021-06-21T11:34:48Z
2024-09-18T11:46:27Z