NDLI: Magnetic Polystyrene Nanocomposites Reinforced with Magnetite Nanoparticles

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Magnetic Polystyrene Nanocomposites Reinforced with Magnetite Nanoparticles

Content Provider	Semantic Scholar
Author	Yan, Xingru He, Qingliang Zhang, Xi Gu, Hongbo Chen, Haoran Wang, Qiang Sheng Sun, Luyi Wei, Suying Guo, Zhanhu
Copyright Year	2014
Abstract	Polystyrene (PS)/magnetite (Fe3O4) polymer nanocomposites (PNCs) are successfully synthesized by a solvent extraction method. Scanning electron microscopy reveals that the nanoparticles are well distributed in the PS matrix with 5, 10, and 20 wt% without obvious agglomeration. Fourier transform infrared spectroscopy analysis indicated that the PS/Fe3O4 PNCs are synthesized with strong interaction between PS and nanoparticles. The thermogravimetic analyzer and microscale combustion calorimetry reveal an enhanced thermal stability and reduced flammability. The differential scanning calorimetry demonstrates both glass transition temperature (Tg) and melting temperature (Tm) increased with increasing the Fe3O4 nanoparticle loading. The observed monotonically decreased complex viscosity indicates a strong shear thinning behavior in the PNCs; meanwhile, the percolation takes place in the low frequency range (0.1–1 Hz) when the nanoparticles are introduced in the matrix. The Tg of the PS/Fe3O4 nanocomposites determined from the dynamic mechanical analysis shifts to a higher temperature compared with that of pure PS. Enhanced dielectric properties relate to the Fe3O4 NP loadings. In addition, the PS/Fe3O4 PNCs exhibit superparamagnetic behavior at room temperature.
Starting Page	485
Ending Page	494
Page Count	10
File Format	PDF HTM / HTML
DOI	10.1002/mame.201300208
Alternate Webpage(s)	http://composites.utk.edu/papers%20in%20pdf/Yan_et_al-2014-Macromolecular_Materials_and_Engineering.pdf
Alternate Webpage(s)	https://doi.org/10.1002/mame.201300208
Volume Number	299
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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