چكيده فارسي :
Excellent chemical resistance, easy modification, non-flammable and low production cost
of poly(vinyl chloride) (PVC), make PVC-based materials suitable for use as the hosting
matrix in the fabrication of polymer-based nanocomposites (NCs)[1]. However,poor
processability, low thermal stabilityand brittleness have greatly restricted their application. To
overcome this problem, PVC NCs has been fabricated by the addition of inorganic nanofillers.
ZrO2 nanoparticles (NPs) were employed as fillers to retrofit and increase the thermal
stability, mechanical strengthand opticalproperties of PVC as one of the most important
thermoplastics. At first, surface modification of ZrO2NPs was performed by vitamin B1 (VB1)
as environmental friendly coating layer, in order to prevent accumulation and increase
compatibility of NPs with the organic PVC matrix [2]. PVC based NCs were prepared by the
incorporation of different mass fractions of modified ZrO2 (ZrO2-VB1) (3, 5 and 7 wt %) into
PVC matrix by solution casting and ultrasonic dispersion methodsas a rapid, economical and
green way(Scheme 1). The results indicated that PVC/ZrO2-VB1 NC films exhibit better
thermal stability, optical, tensile and self-extinguishing properties compared withpure PVC.
