On Experimental Evaluation of Tortuosity for Cellulose-Based Highly Porous Composites Used Within Noise Insulation Applications

Seciureanu, Mihai; Guiman, Maria-Violeta; Nastac, Silviu-Marian; Nechita, Petronela; Debeleac, Carmen-Nicoleta; Capatana, Gigel-Florin

doi:10.1007/978-3-031-48087-4_14

Springer Proceedings in Physics

2024

DOI: 10.1007/978-3-031-48087-4_14

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On Experimental Evaluation of Tortuosity for Cellulose-Based Highly Porous Composites Used Within Noise Insulation Applications

Mihai Seciureanu,

Maria-Violeta Guiman,

Silviu-Marian Nastac

et al.

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Cited by 2 publications

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Progress on the Sound Absorption of Viscoelastic Damping Porous Polymer Composites

Tang

2024

Macromol. Rapid Commun.

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Porous polymer composites (PPC) have developed rapidly recently, which are widely used in various industrial fields. Viscoelastic damping is an important behavior of porous polymer composites, and it can determine the sound absorption for noise reduction applications. This review has mainly covered the viscoelastic damping and sound absorption of porous polymer composites. Different fabrication approaches of porous polymer composites are gathered. The mechanism of viscoelastic damping behavior is described, and also the sound absorption properties. Followed by the introduction of enhanced sound absorption of viscoelastic damping porous polymer composites, including the incorporation of fillers, microstructures modification, combination with nanofibrous materials, and multilayer configuration, etc. The incorporated fillers can effectively adjust the interfacial area in composites, and obtain desired bonding conditions. Microstructures modification is an effective tool to improve the morphologies of both polymer matrix and fillers, which can be achieved by chemical treatment and surface coating. The combination with lightweight nanofibrous layer can increase the low frequency absorption. The configuration of multilayer composites can improve both acoustical and mechanical properties for engineering applications. It is hoped that this comprehensive review is benefit for the promising development of porous polymer composites in related fields.

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Progress on the Sound Absorption of Viscoelastic Damping Porous Polymer Composites

Tang

2024

Macromol. Rapid Commun.

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Cellulose Fibers-Based Porous Lightweight Foams for Noise Insulation

Seciureanu,

Nastac,

Guiman

et al. 2023

Polymers

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This paper examines effective and environmentally friendly materials intended for noise insulation and soundproofing applications, starting with materials that have gained significant attention within last years. Foam-formed materials based on cellulose fibers have emerged as a promising solution. The aim of this study was to obtain a set of foam-formed, porous, lightweight materials based on cellulose fibers from a resinous slurry pulp source, and to investigate the impact of surfactant percentage of the foam mixtures on their noise insulation characterisitcs. The basic foam-forming technique was used for sample assembly, with three percentages of sodium dodecyl sulphate (as anionic surfactant) related to fiber weight, and a standardised sound transmission loss tube procedure was used to evaluate noise insulation performance. Results were obtained as observations of internal structural configurations and material characteristics, and as measurements of sound absorption/reflection, sound transmission loss, and surface acoustic impedance. Based on the findings within this study, the conclusions highlight the strong potential of these cellulosic foams to replace widely used synthetic materials, at least into the area of practical noise insulation applications.

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On Experimental Evaluation of Tortuosity for Cellulose-Based Highly Porous Composites Used Within Noise Insulation Applications

Cited by 2 publications

References 16 publications

Progress on the Sound Absorption of Viscoelastic Damping Porous Polymer Composites

Progress on the Sound Absorption of Viscoelastic Damping Porous Polymer Composites

Cellulose Fibers-Based Porous Lightweight Foams for Noise Insulation

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