Enhanced thermal stability and flame retardancy of polystyrene by incorporating titanium dioxide nanotubes via radical adsorption effect
Source abstract
Abstract
Abstract Titanium dioxide nanotubes (TNTs) were synthesized by a hydrothermal method and then incorporated into polystyrene (PS) through in situ bulk radical polymerization. In comparison, the PS/TiO 2 composites with various TiO 2 loadings were also prepared by melt blending method. The addition of TNTs induced a significant thermal stabilization on PS: with the 5 wt% loading of TNTs, the corresponding T −10% and T max of the composite were improved by 41 and 58 °C compared to those of pristine PS. Meanwhile, an approximately 33% reduction in peak heat release rate was observed in the case of PS/TNTs5%. In contrast, TiO 2 did not exhibit so effective enhancement in thermal stability and flame retardancy as TNTs. Direct pyrolysis-mass spectrometry and thermo-gravimetric analysis/infrared spectrometry analysis showed that the radical adsorption effect of TNTs was responsible for the improved thermal stability and flame retardancy of polystyrene.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Flame retardant materials and properties · Polymer Nanocomposites and Properties · Polymer composites and self-healing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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