Acoustical behaviour of natural fibres-based composite boards as sound-absorbing materials

Sharma, S. K.; Shukla, S. R.; Sethy, Anil Kumar

doi:10.1007/s13196-020-00255-z

Cited by 24 publications

(21 citation statements)

References 14 publications

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“…There is much interest in using eco-friendly sound-absorbing materials to reduce noise pollution [1]. Most current eco-friendly sound-absorbing materials are natural fibers or natural fiber composites, using agricultural by-products [2][3][4][5]. Wood is a naturally porous material and can serve as an excellent eco-friendly and sustainable sound-absorbing material [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Delignification Effects on Indonesian Momala (Homalium foetidum) and Korean Red Toon (Toona sinensis) Hardwood Pore Structure and Sound Absorption Capabilities

Jang

Kang

2021

Materials

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Among the various methods used to improve the sound absorption capability of wood, we focused on delignification in Indonesian momala (Homalium foetidum) and Korean red toon (Toona sinensis). We performed gas permeability, pore size, and porosity analyses and evaluated how the change in the pore structure affects the sound absorption capabilities. Results show that delignification increased the through-pore porosity and improved sound absorption capability in both species. In addition, the air gap in the rear space maximized the sound absorption of momala and the red toon. The noise reduction coefficient (NRC) of delignified momala (90 min) with a 3 cm air gap was 0.359 ± 0.023. This is approximately 154.6% higher than that of untreated momala without an air gap. The NRC of delignificated red toon (90 min) with a 3 cm air gap was 0.324 ± 0.040, an increase of 604.3% over untreated red toon without an air gap.

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Section: Introductionmentioning

confidence: 99%

Delignification Effects on Indonesian Momala (Homalium foetidum) and Korean Red Toon (Toona sinensis) Hardwood Pore Structure and Sound Absorption Capabilities

Jang

Kang

2021

Materials

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“…Compared with other NRC natural fiber composite board (Bagasse: 0.32, Bamboo: 0.35, Banana 0.40, Coir of 0.29, Corn: 0.36) [36], the PCCM demonstrated higher soundabsorption capabilities.…”

Section: Sac Results From Transfer Function Methodsmentioning

confidence: 92%

An Experimental Study on the Performance of Corrugated Cardboard as a Sustainable Sound-Absorbing and Insulating Material

2021

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The continuing development of industrialization and increasing population density has led to the emergence of noise as an increasingly common problem, requiring various types of sound absorption and insulation methods to address it. Meanwhile, the recycling of resources to ensure a sustainable future for the planet and mankind is also required. Therefore, this study investigates the potential of corrugated cardboard as a resource for noise reduction. The sound absorption and insulation performance of non-perforated corrugated cardboard (NPCC) were measured, and modified corrugated boards were fabricated by drilling holes either through the surface of the corrugated board alone or through the corrugated board in its entirety. The sound-absorption/insulation performance both of perforated corrugated cardboard (PCC) and perforated corrugated cardboard with multi-frequency resonators (PCCM) were measured using the transfer function method and the transmission matrix method. To determine the effectiveness of NPCC, PCC, and PCCM in noise reduction, the sound pressure level was analyzed by applying it to a home blender. The results showed PCCM’s sound absorption and insulation performance to be excellent. On the basis of these findings, we propose the use of PMMC as an eco-friendly noise-reduction material.

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“…The design of materials and structures is not only concerned with performance but also ensures effective cost management [15]. Due to their low cost, environmental friendliness, biodegradability, and sound insulation, natural fibres are gaining popularity [16,17]. The annual demand for natural fibres in plastic composites continues to increase at a rapid rate [18].…”

Section: Introductionmentioning

confidence: 99%

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

Karthi

Gokulkumar

Sathish

et al. 2022

Mater. Res. Express

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To achieve a durable, rigid, and lightweight construction material, a new class of Camellia sinensis / Ananas comosus fiber-enhanced corrugated sandwich panel was designed and produced. The crushed core layer comprises sinusoidal corrugation and is manufactured by a method of mould pressing in an attempt to assess this material's sound absorption ability. In addition, the influence of airgap and micro perforation on sound absorption properties was investigated. The samples with a greater perforation ratio and air gap are found to have a noise reduction coefficient (NRC) of 0.745, which can be used to attenuate mid- and high-range frequencies in industrial environments.

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Acoustical behaviour of natural fibres-based composite boards as sound-absorbing materials

Cited by 24 publications

References 14 publications

Delignification Effects on Indonesian Momala (Homalium foetidum) and Korean Red Toon (Toona sinensis) Hardwood Pore Structure and Sound Absorption Capabilities

Delignification Effects on Indonesian Momala (Homalium foetidum) and Korean Red Toon (Toona sinensis) Hardwood Pore Structure and Sound Absorption Capabilities

An Experimental Study on the Performance of Corrugated Cardboard as a Sustainable Sound-Absorbing and Insulating Material

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

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