Theodorou Viktoria, Matysík Michal, Plšková Iveta, Kusák Ivo, Papaphilippou Petri Ch, Krasia-Christoforou Theodora
Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1 Panepistimiou Avenue Nicosia, Aglantzia, 2109, Cyprus.
Faculty of Civil Engineering, Institute of Physics, Brno University of Technology, Veveří 331/95, Brno, 602 00, Czech Republic.
Macromol Rapid Commun. 2025 Jul;46(13):e2400863. doi: 10.1002/marc.202400863. Epub 2024 Dec 27.
Sound absorption plays a crucial role in addressing noise pollution that may cause harm to both human health and wildlife. To tackle this environmental issue, the implementation of natural-based sound absorbing materials attracts considerable attention in the last few years. In this study, sound absorbing, eco-friendly composites are produced by combining a 3D natural sponge namely Luffa Cylindrica (LC) with cellulose acetate (CA) microfibrous layers that are fabricated through electrospinning. Electrospun microfibers can effectively absorb sound waves due to their unique properties such as high porosity, small diameter, and large surface area. The individual components and the resulting composites, exhibiting various configurations, are characterized in respect to their morphology, porosity, density, and sound absorption properties. More precisely, the sound absorption coefficient is determined through the standing wave ratio method within the range of 500-4000 (Hz) frequency. The most promising materials consist of a multilayer combination of LC with CA microfibrous layers, which creates new prospects in the development of such materials for sound absorption applications.
吸声在解决可能对人类健康和野生动物造成危害的噪声污染方面起着至关重要的作用。为了解决这一环境问题，近年来，基于天然材料的吸声材料的应用受到了广泛关注。在本研究中，通过将一种3D天然海绵丝瓜（LC）与通过静电纺丝制备的醋酸纤维素（CA）微纤维层相结合，制备了吸声、环保的复合材料。静电纺丝微纤维由于其独特的性质，如高孔隙率、小直径和大表面积，能够有效地吸收声波。对具有各种结构的单个组分及其所得复合材料的形态、孔隙率、密度和吸声性能进行了表征。更确切地说，通过驻波比法在500-4000（Hz）频率范围内测定吸声系数。最有前景的材料是由LC与CA微纤维层的多层组合构成，这为开发此类吸声应用材料创造了新的前景。
