Growing environmental concerns and climate change have motivated researchers to find alternatives to traditional synthetic or polymer-based materials. An alternative group of materials that have gained recent interest are mycelium-based foams and composites, due to their sustainable nature and application potential. Mycelium consists in the vegetative growth of filamentous fungi, which binds organic matter through a network of hyphal micro-filaments in a natural biological process. Owing to these properties and their porous nature, mycelium bio-composites are versatile materials that can provide thermal insulation and are suitable for packaging systems, among other kinds of products. Also, mycelium-based sound absorbers have been developed, providing effective broadband absorption at mid to high frequencies. Mycelium bio-composites can also be shaped into different forms using a range of techniques such as molding and 3D printing. Together with their acoustic and thermal properties, this versatility establishes a promising potential for implementation in metamaterial structures with custom-designed acoustic absorption properties. In this work, we explore the versatility of mycelium bio-composites and the current trends in their acoustic applications by presenting a systematic literature review that assesses their acoustic performance, for a selected range of organic substrates and types of fungi, shaped and treated in different ways.
Acoustic applications of bio-mycelium composites, current trends and opportunities: a systematic literature review
Piana E.;
2023-01-01
Abstract
Growing environmental concerns and climate change have motivated researchers to find alternatives to traditional synthetic or polymer-based materials. An alternative group of materials that have gained recent interest are mycelium-based foams and composites, due to their sustainable nature and application potential. Mycelium consists in the vegetative growth of filamentous fungi, which binds organic matter through a network of hyphal micro-filaments in a natural biological process. Owing to these properties and their porous nature, mycelium bio-composites are versatile materials that can provide thermal insulation and are suitable for packaging systems, among other kinds of products. Also, mycelium-based sound absorbers have been developed, providing effective broadband absorption at mid to high frequencies. Mycelium bio-composites can also be shaped into different forms using a range of techniques such as molding and 3D printing. Together with their acoustic and thermal properties, this versatility establishes a promising potential for implementation in metamaterial structures with custom-designed acoustic absorption properties. In this work, we explore the versatility of mycelium bio-composites and the current trends in their acoustic applications by presenting a systematic literature review that assesses their acoustic performance, for a selected range of organic substrates and types of fungi, shaped and treated in different ways.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
