The Sound Adsorption of Poly Vinyl Chloride Nanocomposites, Consisting of Silica, Zinc oxide, Zeolite A to Noise Pollution Control

In the current experimental study, firstly, we seek to synthesize polyvinyl chloride (PVC) nanocomposites, consisting of various additive nanoparticles, including Silica, Zinc oxide (ZnO), and Zeolite A nanoparticles. The size of Silica, ZnO, and Zeolite A nanoparticles were 30±2, 45±5, and 100±5 nm, respectively. Secondly, to investigate the effect of these nanoparticles on sound absorption, density, heat change, expansion, and contraction. Results showed that PVC/Silica 0.51%, PVC/Silica 0.29%, PVC/Zeolite A 6.1%, and PVC/Silica 0.51% had the highest sound absorption coefficient in a frequency of 250, 500, 1000, and 2000 Hz, respectively. Moreover, an increase of Zeolite A and ZnO nanoparticles increases density. However, an increase of Silica nanoparticles decreases density. The heat change experiment showed that an increase of Zeolite A decreases heat change, but an increase of Silica results in higher heat change. It was found that PVC/Silica 0.51% had a minimum contraction and expansion. Consequently, PVC/Silica 0.51%, PVC/Silica 0.29%, PVC/Zeolite A 6.1%, and PVC/Silica 0.51% nanocomposites had the highest sound absorption coefficient in a frequency of 250, 500, 1000, and 2000 Hz, respectively.