Acoustic properties of pistachio shell additive polyester resin

The discovery and production of numerous new environmentally friendly materials have been made possible by the technology's quickening pace of development. This prompts research into the use of polymer composites in the sector, which stands out for its benefits and keeps growing daily. When it comes to environmental protection, polymers made from recycled PET are a key component of these composites.In this context, the polymer composition enriched with pistachio shells will hold a significant place in the area. The mechanical and acoustical properties of polymers obtained by adding pistachio shell powder in specific ratios were examined. Sound absorbing, Tensile, bending and Izod-Charpy Impact strength tests were conducted sequentially on moulded composite specimens. Additional to the mechanical and acoustical test, SEM analyses were conducted to produce complex, high- magnification images of the surface topography of all samples prepared. The outcomes demonstrated that the prepared composite offered effective mid-frequency sound absorption, which can be used as membrane absorbers. Additionally, the mechanical properties of the pistachio shell filling are improved, lengthening the lifespan of the composite panel.