Synthesis and properties of polystyrene/Fe-montmorillonite nanocomposites using synthetic Fe-montmorillonite by bulk polymerization |
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| Authors: | Qinghong?Kong Email author" target="_blank">Yuan?huEmail author Hongdian?Lu Zuyao?Chen Weicheng?Fan |
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| Affiliation: | (1) State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China;(2) Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China |
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| Abstract: | Fe-montmorillonite (Fe-MMT) was hydrothermally synthesized. It was modified by cetyl trimethylammonium bromide (CTAB) and
successfully synthesized polystyrene/Fe-montmorillonite (PS/Fe-MMT) nanocomposites via bulk polymerization for the first time.
The resulting nanocomposites were characterized by X-ray diffraction (XRD) spectra, transmission electron microscopy (TEM),
high resolution electronic microscopy (HREM), thermal gravimetric analysis (TGA) and cone calorimeter. XRD, TEM and HREM indicated
that both intercalated and exfoliated-intercalated structures were observed. In comparison with pure PS, the thermal stability
was notably improved in the presence of clay. From cone calorimetry it was found that the peak of heat release rate (HRR)
was significantly reduced by the formation of the nanocomposites. Also intercalated nanocomposites were more effective than
exfoliated-intercalated nanocomposites in fire retardancy. |
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