286131 Magnetic Epoxy-Magnetite Nanocomposites

Monday, October 29, 2012: 3:59 PM
Cambria East (Westin )
Hongbo Gu, Integrated Composites Laboratory (ICL), Dan F Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, Yudong Huang, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China, Suying Wei, Chemistry and Biochemistry, Lamar University, Beaumont, TX and Zhanhu Guo, Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX

Magnetic Epoxy-Magnetite Nanocomposites

Hongbo Gu, Yudong Huang, Suying Wei and Zhanhu Guo

Magnetic epoxy resin nanocomposites reinforced with magnetite (Fe3O4) nanoparticles (NPs) have been prepared with different nanofiller loading levels. The surface functionality of the NPs was tuned by the introduced conductive polyaniline (PANI) via surface initiated polymerization (SIP) method. The rheological behaviors of the epoxy resin suspended with different NP loadings were systemically investigated. The thermo-stability of these cured epoxy nanocomposites was studied by thermogravimetric analysis (TGA). The fracture surface was characterized by scanning electron microscope (SEM). The mechanical properties were tested including tensile test and dynamic mechanical analysis (DMA). The enhanced mechanical properties of the epoxy nanocomposites filled with the functionalized NPs were observed in the tensile test compared with the pure epoxy and its nanocomposites filled with as-received NPs. The glass transition temperature (Tg) obtained from dynamic mechanical analysis (DMA) and the magnetic properties were studied and will be reported in this talk.

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See more of this Session: Composite Interfaces
See more of this Group/Topical: Materials Engineering and Sciences Division