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Study of melt compounding conditions and characterization of polyamide 6/metallocene ethylene‐polypropylene‐diene copolymer/maleated ethylene‐polypropylene‐diene copolymer blends reinforced with layered silicates
Author(s) -
GarcíaLópez D.,
LópezQuintana S.,
GobernadoMitre I.,
Merino J.C.,
Pastor J.M.
Publication year - 2007
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20782
Subject(s) - materials science , compounding , copolymer , polypropylene , montmorillonite , elastomer , composite material , thermoplastic elastomer , polyamide , ethylene propylene rubber , plastics extrusion , mixing (physics) , compatibilization , polymer blend , polymer chemistry , polymer , physics , quantum mechanics
A low content of nanoclay (modified montmorillonite, MMT) was added to PA6/mEPDM/EPDM‐ g ‐MA blends via melt compounding in order to obtain three different nanoblends by two methods: (a) one‐step mixing in which the polymeric and the inorganic components were simultaneously introduced in the feed ports 1 and 2 of a corrotating twin‐screw extruder respectively; (b) two‐step mixing in which the PA6/mEPDM/EPDM‐ g ‐MA elastomeric blend was first obtained and in a second step the MMT was added at two different mixing speeds. The microscopic study and the mechanical characterization of the nanoblends showed a relationship between microstructure, processing conditions, and mechanical properties. A predominant reinforcement effect due to the presence of organoclays was observed. POLYM. ENG. SCI., 47:1033–1039, 2007. © 2007 Society of Plastics Engineers