Abstract
In this study, polymeric nanocomposites based on poly(methyl methacrylate) (PMMA) and silicon carbide (SiC) nanoparticles were prepared by radical mass polymerization in the presence of filler. Nanoparticles of SiC with and without surface treatment with organosilane were obtained .The nanocomposites were characterized by X-ray fluorescence (XRF), infrared spectroscopy (FTIR), thermogravimetry (TGA) and Field Emission Gun Scanning Electron Microscopy (FEG SEM) with an energy dispersive x-ray spectroscopy (EDS) detector. The produced nanocomposites showed well-dispersed SiC incorporation in the PMMA matrix. The results pointed that the surface treatment on SiC fillers was successful on enhancing the interaction between the organic matrix and the inorganic filler.
Highlights
The production of novel polymeric nanocomposites have been widely studied by the current applications on nanosized inorganic fillers in the food packaging field, barrier applications, sensors, antimicrobial, conductive, coatings, antiballistic products and other materials 1-4
According to the Fourier transform infrared spectroscopy (FTIR) analysis spectra results, the incorporation of the SiC filler into the poly(methyl methacrylate) (PMMA) matrix was obtained for all nanocomposites during polymerization process, which can be observed by presence of absorption bands related to silicon carbide and PMMA polymer (Figure 2)
FTIR analysis showed the characteristic absorption bands of the PMMA, SiC into the treated nanocomposites, what corroborate with the X-ray fluorescence (XRF) analysis, good filler modification and transparent characteristic of the treated materials
Summary
The production of novel polymeric nanocomposites have been widely studied by the current applications on nanosized inorganic fillers in the food packaging field, barrier applications, sensors, antimicrobial, conductive, coatings, antiballistic products and other materials 1-4. The characteristics and properties of the nanocomposites are influenced by the type of filler used as well as by the polymeric matrix. Many methods are used to the production of polymeric nanocomposite materials, such as ex or in situ polymerization, extrusion molding, injection molding, plasma coating, ball milling and other processes. The in situ polymerization enables an effective and homogeneous filler dispersion into the organic matrix. Poly(methyl methacrylate) (PMMA) is well-known as a polymer used in the production of materials with low cost, but still with great properties, as well as transparency, thermal stability, electrical insulation and mechanical resistance.
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