چكيده فارسي :
It is clear that, poly(vinyl chloride) (PVC) is a white and brittle solid polymer with low
thermal stability which has limited its applications [1].Incorporation of various inorganic
nanofillers is an effective method to overcome this problem [2].In this study,
SiO2nanoparticles (NPs) incorporated into PVC matrix to prepare nanocomposites with better
mechanical, physical, and thermal properties. To prevent aggregation and to achieve a
uniform dispersion of SiO2NPs into the PVC matrix, the SiO2 NPs were modified with
vitamin B1 (VB1). Nanocomposites (NCs) were prepared with different percentage of
modified SiO2 NPs (3, 5 and 7 wt %)(Figure 1). The results indicated that PVC/SiO2-VB1
NCs exhibited better thermal stability, flexibility than pure PVC in three weight percentages.
