Topic
Polymer nanocomposite
About: Polymer nanocomposite is a research topic. Over the lifetime, 8977 publications have been published within this topic receiving 297599 citations.
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TL;DR: In this article, surface modified TiO2 nanoparticles were encapsulated in PMMA by in situ radical polymerization of methyl methacrylate initiated by 2,2′-azobisisobutyronitrile.
80 citations
TL;DR: In this article, a flexible conducting polymer composite film, prepared via a simple solvent cast method, of PVDF incorporated with Au-MWCNT, was studied and the scanning electron microscopic analysis showed that the Au-loaded MWCNT uniformly dispersed in PVDF.
Abstract: Electromagnetic interference (EMI) shielding effectiveness and conductivities in a flexible conducting polymer composite film, prepared via a simple solvent cast method, of PVDF incorporated with Au–MWCNT are studied. The scanning electron microscopic analysis showed that the Au-loaded MWCNT uniformly dispersed in PVDF. The HRTEM images show that Au nanoparticles having a particle size of 20–30 nm have been deposited on the nodes of the MWCNT. The values of dielectric constant were found to be 12.11 and 13.89 at 1 MHz upon the incorporation of 1 and 3 wt % MWCNT in PVDF. The impedance and electromagnetic interference shielding effectiveness studies reveal that the polymer nanocomposites possess enhanced conductivity of 1.12 × 10–4 S/cm at 1 MHz, minimum return loss of 4.4 dB, and effective electromagnetic shielding of 26.7 dB at 12 GHz for 3 wt % Au NPs in 3 wt % MWCNT/PVDF thin film.
80 citations
80 citations
TL;DR: This facile method provides a scalable method to produce ultralight dielectric polymer nanocomposites, with a microscopically tailored microstructure for use in electronic devices.
Abstract: Dielectric polymer nanocomposites with high dielectric constant (e′) and low dielectric loss (tan δ) are extremely desirable in the electronics industry. Percolative polymer–graphene nanoplatelet (...
80 citations
TL;DR: In this article, shape memory nanocomposites were fabricated using chemically crosslinked polystyrene (PS) copolymer as a matrix and different nanofillers (including alumina, silica and clay) as the reinforcing agents.
Abstract: Shape memory nanocomposites were fabricated using chemically cross-linked polystyrene (PS) copolymer as a matrix and different nanofillers (including alumina, silica and clay) as the reinforcing agents. Their thermo-mechanical properties and shape memory effects were characterized. Experimental results revealed that the nanofillers provide significant reinforcement of the PS, and the nanocomposites exhibit better thermal and mechanical properties, including shape memory properties, than unreinforced PS. Both experimental and theoretical analyses have shown that the rod-shaped clay nanofillers offer better reinforcement than spherical nanoparticles, because of their high aspect ratio and ability to reinforce in multiple directions.
80 citations