Effect of polydispersity on the transport and sound absorbing properties of three-dimensional random fibrous structures

Tran, Quang Vu; Perrot, Camille; Panneton, Raymond; Hoang, Minh Tan; Dejaeger, Ludovic; Marcel, Valérie; Jouve, Mathieu

doi:10.1016/j.ijsolstr.2024.112840

International Journal of Solids and Structures

2024

DOI: 10.1016/j.ijsolstr.2024.112840

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Effect of polydispersity on the transport and sound absorbing properties of three-dimensional random fibrous structures

Quang Vu Tran,

Camille Perrot,

Raymond Panneton

et al.

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2024

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Cited by 3 publications

References 57 publications

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Utilizing polydispersity in three-dimensional random fibrous based sound absorbing materials

Tran,

Perrot,

Panneton

et al. 2024

Materials & Design

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Utilizing polydispersity in three-dimensional random fibrous based sound absorbing materials

Tran,

Perrot,

Panneton

et al. 2024

Materials & Design

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Optimization of sound absorption of recycled Nylon fibrous materials

Biboud,

Elkoun,

Panneton

2024

Front. Acoust.

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A semi-empirical model for the assessment and an optimization procedure of the sound absorption coefficient of compressed nonwoven fibrous materials made from recycled Nylon fibers (RNF) is developed. In general, the prediction of the sound absorption properties of materials requires the measurement of non-acoustic parameters by specialized characterization tools that are not always within reach of most laboratories. The objective of the proposed model is to establish empirical relationships between these non-acoustic parameters and the bulk density of RNF materials. These empirical relationships are then substituted into a conventional acoustic model for porous materials, namely, the model of Johnson-Champoux-Allard. The proposed model accurately predicts the sound absorption coefficients of compressed RNF materials based solely on bulk density, thickness, and frequency. This prediction is validated through impedance tube measurements. Moreover, the model is used with a proposed optimization producedure to identify the ideal density and thickness for maximum sound absorption at a specific frequency. Impedance tube measurements on optimized configurations confirm the effectiveness of this optimization process.

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Sustainable Transformation of Cellulose-Containing Textile Waste into Multifunctional Panels with Tailored FR-Lignocellulosic Fibres

Lamoudan,

Abenghal,

Belosinschi

et al. 2024

Polymers

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The fashion industry significantly impacts the environment, mainly through the substantial generation of waste textiles fostered by fast fashion business models. This study introduces an innovative approach to textile waste management by recycling waste textiles without the use of chemical or mechanical treatments. Herein, we developed a method adhering to the principles of circular economy to transform these textile wastes into high-quality construction panels using a papermaking process. This method not only provides a sustainable solution to reduce landfill dependency but also enhances resource efficiency in the construction industry. The fabricated panels, composed of a blend of 45% textile waste microfibres and 55% fire-retardant fibres, exhibit several advantageous properties. They feature a low apparent density ranging between 170–180 kg/m3 and a low thermal conductivity coefficient of 0.047 W/m∗K at 50 kPa. It revealed that phosphorylated fibres not only provide flame-retardant properties, but they also significantly improve the mechanical properties of the panels. For example, load at break increases from 12.4 to 81.1 N, stress at break from 0.44 to 3.59 MPa, and E-modulus from 29.2 to 198.8 MPa after the addition of these 55% fibres. Moreover, these panels successfully met the criteria set by international standards for construction products satisfying the fire test, EN ISO 11925-2. These characteristics make the panels superior options for sustainable construction materials, offering enhanced fire resistance and insulation properties, which are critical to meet modern building standards. They mark a pivotal step towards sustainable construction and waste reduction in the fashion industry.

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Effect of polydispersity on the transport and sound absorbing properties of three-dimensional random fibrous structures

Cited by 3 publications

References 57 publications

Utilizing polydispersity in three-dimensional random fibrous based sound absorbing materials

Utilizing polydispersity in three-dimensional random fibrous based sound absorbing materials

Optimization of sound absorption of recycled Nylon fibrous materials

Sustainable Transformation of Cellulose-Containing Textile Waste into Multifunctional Panels with Tailored FR-Lignocellulosic Fibres

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