Titre :

Influence of the degree of exfoliation of an organoclay on the flame-retardant properties of cross-linked ethylene-co-Propylene-co-diene monomer-g-Maleic anhydride-based composites

Auteur(s) :

Moustafa, Hesham [Auteur]
Duquesne, Sophie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Haidar, B. [Auteur]
Vallat, M.F. [Auteur]

Titre de la revue :

Polymer Composites

Numéro :

38

Pagination :

966-973

Date de publication :

2017

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]

Layered montmorillonite was synthesized by hydrothermal method, progressively modified by an alkylammonium and thoroughly characterized by elemental, thermal, and X-ray diffraction (XRD) analysis. Pristine and modified ...
Lire la suite >Layered montmorillonite was synthesized by hydrothermal method, progressively modified by an alkylammonium and thoroughly characterized by elemental, thermal, and X-ray diffraction (XRD) analysis. Pristine and modified clays were introduced in maleic anhydride-modified ethylene-co-propylene-co-diene monomer matrix. XRD and transmission electron microscopy investigations showed microcomposite as well as intercalated or exfoliated nanocomposites morphologies depending on the organic content of the clay. The inhibitor character of the pristine clay on peroxides as cross-linking agent for rubbers was then demonstrated and overcome by using electron beam irradiation for specimens containing unmodified clay. Dynamic mechanical analyses and swelling measurements showed that it is possible to obtain the same degree of cross-linking of the polymer matrix by electron beam irradiation of the composites based on pristine clay specimens and conventional peroxide curing of modified-clay-based ones. Finally, flame-retardant properties of different clays-based composites showed a direct dependence on the degree of exfoliation. It was observed that the better the exfoliation, the higher is the flame retardancy.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 :

2019-05-16T17:21:31Z
2024-07-10T08:51:36Z