ArticleFrontiers in chemistry2026
Synergetic effects of silicon nanoparticles and multi-walled carbon nanotubes on the structural and dielectric properties of polystyrene-based nanocomposites.
Article in Frontiers in chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In the present study, high-impact polystyrene (HIPS) nanocomposites filled with nano-silicon In the present study, high-impact polystyrene (HIPS) nanocomposites filled with nano-silicon particles (Si) and multi-walled carbon nanotubes (MWCNTs) were prepared, their structural, dielectric, and mechanical properties were investigated. X-ray diffraction (XRD) analysis confirmed the polycrystalline nature of Si nanoparticles and the preservation of the MWCNTs'graphitic (002) structure. Atomic Force Microscope (AFM) analysis confirmed that the addition of hybrid fillers leads to changes in the surface morphology. It was determined that the root mean square (RMS) surface roughness decreased from approximately 85 nm for pure MWCNTs to about 30 nm for the HIPS + Si + MWCNT nanocomposite. Dielectric measurements showed that the HIPS+1.5 wt.%Si+1.5 wt.%MWCNT nanocomposite exhibited the highest dielectric response. The dielectric constant increased by approximately 3.5 times at 1 kHz compared to neat HIPS. A relaxation maximum observed at 125 Hz and was corresponding to an effective relaxation time of τ = 1.27 m. At 200 kHz, the AC conductivity was calculated as σ ≈ 10
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