عنوان مقاله English
نویسندگان English
This paper presents the experimental study on vibration characteristics of polymeric nanocomposites containing 1 weight percentage of mesoporous silica (MCM-41), Hydroxy Apatite(HA), the composite of MCM-41 and HA (MH) and carbon nanotube (CNT) as a fillers. Experimental results show that damping ratio and natural frequency increase in the neat PP, CNT/ PP, HA/ PP, MCM-41/ PP nanocomposites and MH/ PP hybrid nanocomposite specimens, respectively. In order to introduce the effect of foam agent in the vibration absorbing properties, foam agent is added to CNT/ PP and MH/ PP nanocomposits. The results show that foamed specimens have more damping capacity and lower natural frequency than unfoamed specimens. The maximum value of increasing the damping ratio and natural frequency of the MH/ PP hybrid nanocomposite than neat PP is 55.02 % and 34.05%, respectively. So, MH/ PP hybrid nanocomposite that is studied in this paper for the first time, can remove the reduction of unwanted vibrations of structures problems.
کلیدواژهها English
