Morphological Structure, Rheological Behavior, Mechanical Properties and Sound Insulation Performance of Thermoplastic Rubber Composites Reinforced by Different Inorganic Fillers

摘要: The application area of a sound insulation material is highly dependent on the technology adopted for its processing. In this study, thermoplastic rubber (TPR, polypropylene/ethylene propylene diene monomer) composites were simply prepared via an extrusion method. Two microscale particles, CaCO3 and hollow glass microspheres (HGW) chosen to not only enhance but also reinforced mechanical properties. Meanwhile, processing capability was confirmed. SEM images showed that uniformly dispersed in TPR matrix with ~3 μm scale aggregates, while HGM slightly aggregated ~13 scale. heterogeneous dispersion micro-scale fillers strongly affected transmission loss (STL) value composites. STL values 40 wt % 20 about 12 dB 7 higher than pure sample, respectively. improved performances have been attributed enhanced reflection dissipate energy composite. Moreover, properties enhanced. discontinued impedance stiffness considered as crucial insulation.