article A-10-715-1.pdf

Sound pollution, as of one of the main modern city irritations has become one of the paramount challenges of the current days. After COVID-19 outbreak many of the professional affairs concentrated at homes and residential areas. Many of the negotiations and conferences have been conducted at homes, where the noise level should be controlled. So, the proper addressing the problem, combining with the privilege of chemical composite synthesis is of great significance. In this paper a multilayer fire proof absorptive-insulator composite has been designed to control the acoustic parameters in residential areas. Apart from the desired acoustic parameters and inflammability, required in apartments, energy saving factors such as heat conductivity has also been optimized. The material has reached the absorption coefficient of 1, resulting in total sound absorption, and reasonable Sound Transmission Class (STC)