چكيده فارسي :
Nanocomposites are materials designed for enhanced performance in any number of unique applications [1]. Alumina nanoparticles are of much interest, because of Al2O3 is the most cost effectiv, hardness, highstrength, excellent dielectric properties [2]. In this project, the surface modification of alumina nanoparticles (NPs) was performed in order to prevent aggregation between hydrophilic surface of NPs and improvement of NPs compatibility with the polymer matrix. The modification was carried out using Vitamin B1 under ultrasonic irradiation. The characteristics of the modified alumina NPs were studied. Then, PVC/α-Al2O3-VB1nanocomposites (NCs) containing 3, 5 and 7 wt % of modified NPs were synthesized under ultrasonic irradiation. The study of the NCs morphology with FE-SEM and TEM, showed a homogenous dispersion of NPs in the polymer matrix (Figure 1).
