Alireza Sahaf Amin, Dr.Reza Bagheri
Papers # 2012 Barcelona
A minerally reinforced polypropylene (PP-MD) ,Because of its high specific weight and its special molecular structure, is able to absorb airborne noise as well as structure borne noise created in soil & waste piping system. The Main mechanism of damping the sound in this piping structure is increasing the density of the pipe structure by using the High filled PP compound. In high filled polypropylene normally the Modules of Elasticity is increased but some other mechanical property like toughness and Impact Strength is decreased. As Impact strength is a critical property of Soil & Waste system especially in low temperature condition which is available in IRAN Climate we decided to increase this property by using the Nano filler to enhance this mechanical property. The effect of filler content on mechanical properties, crystallization process, morphology and sound attenuation of the composites were studied by Tensile and Impact Test, Differential Scanning Calorimetry (DSC), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and B&K Impedance Tube.