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Synthesis and characterization of (Fe 3 O 4 /MWCNTs)/ epoxy nanocomposites
Author(s) -
Jones Wanda D.,
Rangari Vijaya K.,
Hassan Tarig A.,
Jeelani Shaik
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.31193
Subject(s) - nanocomposite , materials science , epoxy , high resolution transmission electron microscopy , thermogravimetric analysis , composite material , nanoparticle , composite number , dispersion (optics) , transmission electron microscopy , dynamic mechanical analysis , glass transition , chemical engineering , polymer , nanotechnology , physics , optics , engineering
Abstract A sonochemical technique is used for in situ coating of iron oxide (Fe 3 O 4 ) nanoparticles on outer surface of MWCNTs. These Fe 3 O 4 /MWCNTs were characterized using a high‐resolution transmission electron microscope (HRTEM), X‐ray diffraction, and thermogravimetric analysis. The as‐prepared Fe 3 O 4 /MWCNTs composite nanoparticles were further used as reinforcing fillers in epoxy‐based resin (Epon‐828). The nanocomposites of epoxy were prepared by infusion of (0.5 and 1.0 wt %) pristine MWCNTs and Fe 3 O 4 /MWCNTs composite nanoparticles. For comparison purposes, the neat epoxy resin was also prepared in the same procedure as the nanocomposites, only without nanoparticles. The thermal, mechanical, and morphological tests were carried out for neat and nanocomposites. The compression test results show that the highest improvements in compressive modulus (38%) and strength (8%) were observed for 0.5 wt % loading of Fe 3 O 4 /MWCNTs. HRTEM results show the uniform dispersion of Fe 3 O 4 /MWCNTs nanoparticles in epoxy when compared with the dispersion of MWCNTs. These Fe 3 O 4 /MWCNTs nanoparticles‐infused epoxy nanocomposite shows an increase in glass transition ( T g ) temperature. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010