Contribution
Sustainable acoustic composite based on fungal mycelium
* Presenting author
Abstract:
The development of sustainable materials for sound absorbers has gained significant attention in recent years as traditional sound-absorbing materials, such as mineral wool and petroleum-based foams, pose substantial environmental challenges throughout their lifecycle. Mycelium-based composites represent a promising sustainable and recyclable option to replace fossil-based products. Furthermore, mycelium-based composites consist of a substrate, that serves as a nutrient for the fungal mycelium, which functions as an "adhesive" due to its root-like structure. One potential application for this innovative material is its utilization as a sound-absorbing material. Nevertheless, the more profound understanding of the acoustic properties in mycelium-based composites poses a major barrier to their widespread adoption as sound-absorbing structures. Based on measurements, this study aims to investigate the effect of different production parameters on absorptive behavior, providing a foundation for analyzing detailed acoustic parameters. Here, we analyze combinations of different fungal species and substrates, and measure the resulting samples using a standardized impedance tube setup.