Abstract
ABSTRACT It is essential to achieve a strong interfacial interaction between the filler and polymer matrix for the production of polymer nanocomposites with superior performance. Ionic liquid (IL) 1-butylpyridinium bromide (BPB) was used for the surface modification of graphene nanoplatelets (GnPs). The modified GnP (PMG) was characterized using Fourier transformation infrared spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy (TEM), and thermogravimetric analysis. BPB functioned as an intermediary between GnP and SBR via noncovalent interactions and promoted GnP dispersion in the SBR matrix. TEMs demonstrated that IL facilitates the homogeneous dispersion of PMG in the SBR/PMG nanocomposites. Dynamic mechanical analysis was used to understand viscoelastic behavior of the nanocomposites. The fraction of immobilized rubber chain around the PMG in the nanocomposites was obtained from the differential scanning calorimetric curve. The SBR nanocomposite prepared shows an improvement of 273% in tensile strength and 12.1 °C in degradation temperature.
Published Version
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