Title :

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

Author(s) :

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

Journal title :

Polymer Composites

Volume number :

38

Pages :

966-973

Publication date :

2017

HAL domain(s) :

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

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSCL
CNRS
INRA

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

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