Study of flammability and thermal properties of high-impact polystyrene nanocomposites (CROSBI ID 174879)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Katančić, Zvonimir ; Travaš-Sejdić, Jadranka ; Hrnjak-Murgić, Zlata
engleski
Study of flammability and thermal properties of high-impact polystyrene nanocomposites
To increase thermal stability and flammability of high impact polystyrene (HIPS) nanocomposites with silica nanoparticles and two types of polyphosphate flame retardants were prepared by extrusion. Nanocomposites were characterized by thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, scanning electron microscope, limiting oxygen index (LOI) analysis and the evaluation of mechanical properties. It was found that organic polyphosphate in combination with silica increased thermal stability and fire retardancy by 50% in LOI test. Morphology characterization revealed existence of crystalline order which affected mechanical properties ; tensile strength was approximately the same as virgin HIPS while elasticity was sharply decreased. Ammonium polyphosphate did not affect mechanical properties as much as organic but was not equally efficient in flame retardancy which was just marginally increased.
flammability; thermal degradation; high-impact polystyrene; silica; nanocomposites
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Podaci o izdanju
96 (12)
2011.
2104-2111
objavljeno
0141-3910
1873-2321
10.1016/j.polymdegradstab.2011.09.020