![]() ![]() prepared natural rubber/silica nanocomposites (NR/SiO 2) and natural rubber/multiwalled carbon nanotubes composite combining self-assembly and latex-compounding techniques. Subsequently, SiO 2-PMMA nanoparticles were induced into PVC matrix, and results showed that the heat resistance, elongation at break, and tensile strength of PVC/SiO 2 composites were significantly improved. ![]() prepared well-dispersed silica-poly(methyl methacrylate) (SiO 2-PMMA) nanoparticles by a suspension-dispersion-polymerization technique in an aqueous system. Among them, nanosilica (SiO 2), an important member of inorganic nanofiller in composites preparation, is widely used in the field of organic/inorganic hybrid composites. Multifarious nanoscale fillers, including calcium carbonate, montmorillonite, carbon black, and aluminum oxide, have been reported in academic journals. Inorganic nanoparticles possess small particle size, high surface area, as well as the quantum and surface effect, which make it possible for nanocomposites to perform more excellent physical and mechanical properties than conventional composites. Recently, considerable efforts have been expended on the preparation of organic/inorganic nanocomposite materials. Compared with those of pure NR, the thermal resistance and tensile properties of NR/SiO 2 nanocomposite are significantly improved. The Fourier transform infrared spectroscopy results show that PMMA has been successfully introduced onto the surface of SiO 2, which can be well dispersed in NR matrix and present good interfacial adhesion with NR phase. The core-shell structure silica-poly(methyl methacrylate), SiO 2-PMMA, nanoparticles were formed by grafting polymerization of MMA on the surface of the modified SiO 2 particles via in situ emulsion, and then NR/SiO 2 nanocomposite was prepared by blending SiO 2-PMMA and PMMA-modified NR (NR-PMMA). Before polymerization, double bonds were introduced onto the surface of the SiO 2 particles with the silane-coupling agent. A highly performing natural rubber/silica (NR/SiO 2) nanocomposite with a SiO 2 loading of 2 wt% was prepared by combining similar dissolve mutually theory with latex compounding techniques. ![]()
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