Polymeric nanocomposite materials: Preparation and characterization of star-shaped PbS nanocrystals and their influence on the thermal stability of acrylonitrile–butadiene–styrene (ABS) copolymer

Star-shaped PbS nanocrystals were synthesized via a simple hydrothermal reaction between Pb(NO3)2·4H2O and thioglycolic acid at a relatively low temperature. The PbS nanostructures were then combined in a acrylonitrile–butadiene–styrene copolymer. The effect of the PbS nanostructures on the thermal stability of the nanocomposite products has been investigated. The nanostructures and nanocomposite were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectra, thermogravimetric-differential thermal analysis and atomic force microscopy. Cone calorimeter measurements showed that the heat release rate significantly decreased in the presence of PbS.

Star-shaped PbS nanocrystals were synthesized via a simple hydrothermal reaction between Pb(NO3)2·4H2O and thioglycolic acid (TGA) at a relatively low temperature. The PbS nanostructures were the combined with acrylonitrile–butadiene–styrene (ABS) copolymer. The effect of the PbS nanostructures on the thermal stability of the nanocomposite products has been investigated. Cone calorimeter measurements showed that the heat release rate (HRR) significantly decreased in the presence of PbS.Figure optionsDownload as PowerPoint slideResearch highlights
► PbS nanocrystals were synthesized at relatively low temperature.
► ABS/PbS nanocomposite filled with 2.0 wt.% of PbS nanocrystals were prepared.
► Effect of PbS as filler on the thermal stability of ABS were investigated.