Document Detail


Magnetic epoxy resin nanocomposites reinforced with core-shell structured Fe@FeO nanoparticles: fabrication and property analysis.
MedLine Citation:
PMID:  20593798     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Epoxy resin nanocomposites reinforced with various loadings of core-shell structured nanoparticles (Fe@FeO) are prepared using a surface wetting method. Nanoparticle loading effect on the viscosity of epoxy monomers is well-correlated to Cross' rheological model. Dynamic mechanical analysis (DMA) results reveal that the glass transition temperature is increased by 10 degrees C with the addition of nanoparticles, which is surprisingly independent of the particle loadings. The saturation magnetization (M(s)) of the 20 wt % Fe@FeO/epoxy nanocomposites is 17.03 emu/g, which is about 15.8% of that of the pure nanoparticles. Meanwhile, the coercivity increases from 62.33 to 202.13 Oe after the nanoparticles are dispersed in the epoxy matrix. The electrical conductivity percolation is found to be around 5-10 wt %, where the resistance of the nanocomposites sharply decreases by 6 orders of magnitude. Thermal stability and tensile properties of the pristine epoxy and nanocomposites are also investigated in this work.
Authors:
Jiahua Zhu; Suying Wei; Jongeun Ryu; Luyi Sun; Zhiping Luo; Zhanhu Guo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  ACS applied materials & interfaces     Volume:  2     ISSN:  1944-8244     ISO Abbreviation:  ACS Appl Mater Interfaces     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101504991     Medline TA:  ACS Appl Mater Interfaces     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2100-7     Citation Subset:  IM    
Affiliation:
Integrated Composites Laboratory (ICL), Dan F Smith Department of Chemical Engineering, and Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710, USA.
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