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Polymer Bulletin
Erschienen in: Polymer Bulletin 5/2015

01.05.2015 | Original Paper

Effect of organoclay and compatibilizers on microstructure, rheological and mechanical properties of dynamically vulcanized EPDM/PP elastomers

verfasst von: Amir Faramarzi Jolfaei, Jaber Nasrollah Gavgani, Amirjalal Jalali, Fatemeh Goharpey

Erschienen in: Polymer Bulletin | Ausgabe 5/2015

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Abstract

Dynamically vulcanized thermoplastic elastomers (TPVs)/oraganoclay nanocomposites were successfully fabricated from polypropylene with ethylene propylene diene monomer (EPDM). Two types of compatibilizers, ethylene propylene diene monomer grafted maleic anhydride and polypropylene grafted maleic anhydride, were incorporated to improve the dispersion of commercial organoclay (15A). In the present work, the role of interfacially located organoclay on the coalescence in TPV nanocomposites was investigated systematically with contact angle measurements and theoretical models to ensure their localization at the polymer/polymer interface, which is experimentally verified by scanning electron microscopy and atomic forced microscopy. Using a rheological method it was shown that coalescence of the dispersed phase is slowed down when organoclay is present at the interface. With the increase of organoclay contents, the size of EPDM droplet decreased due to the in situ formed brush-like interface around the compatibilized EPDM droplet. It was shown that the mechanical properties were improved due to good dispersion of organoclay in the compatibilized TPV nanocomposites.
Vorheriger Artikel Hectorite effects on swelling and gel properties of hectorite/poly(AM/IA) nanocomposite hydrogels
Nächster Artikel Interplay between processing and performance in chitosan-based clay nanocomposite films

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Metadaten
Titel
Effect of organoclay and compatibilizers on microstructure, rheological and mechanical properties of dynamically vulcanized EPDM/PP elastomers
verfasst von
Amir Faramarzi Jolfaei
Jaber Nasrollah Gavgani
Amirjalal Jalali
Fatemeh Goharpey
Publikationsdatum
01.05.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 5/2015
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-015-1328-1

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