Aerogel Acoustics
Treatment for Building Applications
Team: Alaa Algargoosh (PI- Architecture), Robert Moore (Chemistry), Zhenhua Tian (Mechanical Engineering), Kira Baugh (PhD. student Department of Chemistry), and Luyu Bo (PhD. student Department of Mechanical Engineering)
Abstract
Aerogel has the potential to provide exceptional acoustic insulation through its unique nanoscale porous structure, which can scatter and absorb sound waves effectively, converting acoustic energy into heat. Aerogels attenuate sound by dissipating the energy of acoustic waves as they interact between the gas and solid phases within their porous structure. This interaction decreases the wave's intensity and speed, effectively promoting faster dissipation, which makes aerogels suitable for use in acoustic insulation. Customizable properties, such as aerogel thickness, enhance performance at different frequency ranges, enabling targeted sound absorption. Additionally, aerogels offer dual functionality by combining thermal and acoustic insulation, reducing the need for multiple layers of materials. These characteristics position aerogels as a sustainable and high-performing alternative to traditional acoustic materials like fiberglass and mineral wool. The goal of this project is to develop and validate an innovative aerogel-based acoustic solution that integrates exceptional sound absorption for building applications.