فصلنامه
نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار، گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه پیام نور، تهران، ایران
2 استادیار، گروه زمینشناسی، دانشکده علومپایه، دانشگاه پیام نور، تهران، ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
This paper investigates the mechanical properties of modified tourmaline on epoxy/silica nanocomposite. The main goal of this research is to improve the mechanical properties of epoxy/silica nanocomposite using tourmaline as a reinforcing phase. At first, the morphology and microstructure properties of tourmaline obtained and produced silica nanoparticles were evaluated using electron microscope (SEM) and X-ray energy diffraction (EDX) images. Functional species and chemical bonds of modified tourmaline were revealed by infrared spectrometer (FT-IR) analysis. Modified tourmaline microparticles as a reinforcing phase with 10, 20, and 30% by weight along with optimized silica nanoparticles, which is 1% by weight, have been introduced into the epoxy polymer matrix. Different characteristics of tourmaline particles have been investigated and their effect on the mechanical properties of nanocomposite has been evaluated. Tensile, three-point bending tests were performed on the prepared samples and the obtained results were analyzed. The results show that the addition of modified tourmaline nanoparticles to the epoxy matrix improves the mechanical properties of the nanocomposite, which had the highest mechanical properties with 20% by weight, and then with the increase in the weight percentage of the material, the mechanical properties decreased due to clumping. The increase in tensile and bending strength in these conditions is 35.3% and 22.6%, respectively. This research can help to develop advanced materials with better mechanical properties.
کلیدواژهها English
