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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Effects of epoxidized natural rubber as a compatibilizer in melt compounded natural rubber-organoclay nanocomposites
European Polymer Journal, Volume 40, No. 11, Year 2004
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Description
Nanocomposites containing natural rubber (NR) as matrix, epoxidized natural rubber (ENR) as compatibilizer and organophilic layered clay (organoclay) as filler were produced in an internal mixer and cured using a conventional sulphuric system. The effects of ENR with 25 (ENR 25) and 50 mol% epoxidation (ENR 50), respectively, were compared at 5 and 10 parts per hundred rubber (phr) concentrations. The organoclay content was fixed at 2 phr. Cure characteristics, clay dispersion, (thermo)mechanical properties of the nanocomposites were determined and discussed. Incorporation of ENR and organoclay strongly affected the parameters which could be derived from Monsanto MDR measurements. Faster cure and increased crosslink density were attributed to changes in the activation/crosslinking pathway which was, however, not studied in detail. The organoclay was mostly intercalated according to X-ray diffraction (XRD) and transmission electron microscopic (TEM) results. The best clay dispersion was achieved by adding ENR 50. This was reflected in the stiffness of the nanocomposites derived from both dynamic mechanical thermal analysis (DMTA) and tensile tests. The tensile and tear strengths of the ENR 50 containing nanocomposites were also superior to the ENR 25 compatibilized and uncompatibilized stocks. © 2004 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Mohd Ishak, Zainal Ariffin
Malaysia, Minden
Universiti Sains Malaysia
Karger-Kocsis, Jõzsef K.
Germany, Kaiserslautern
Technische Universität Kaiserslautern
Ishiaku, Umaru Semo
Japan, Kyoto
Kyoto Institute of Technology
Statistics
Citations: 260
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1016/j.eurpolymj.2004.06.025
ISSN:
00143057