(174c) Magnetic Vinyl Ester Resin Nanaocomposites Reinforced with Silanized Magnetite Nanoparticles

The Fe₃O₄ nanoparticles  been successfully functionalized  by (3-Mercaptopropyl) trimethoxy-silane (Fe₃O₄-SH) and Vinyl ester resin (VER)/Fe₃O₄ with and without thiol groupnanocomposites have been fabricated at different loadings of Fe₃O₄ nanoparticles. Fourier transform infrared spectroscopy (FT-IR) is used to characterize the chemical structureof Fe₃O₄-SH. X-ray diffraction (XRD) reveals that the crystallization peak of Fe₃O₄-SH nanoparticles have moved to the small angle slightly. The grafting ratio of thiol group and thermal stability of the VER/Fe₃O₄nanocompositesare were characterized by thermogravimetric analysis (TGA). Mechanical properties are performed by tensile test (TS) and dynamic mechanical analysis (DMA). Compared to pure non-magnetic VER composites, VER/Fe₃O₄ with and without thiol-group nanocomposites have good magnetization with the loading of Fe₃O₄