Acoustic Characterization of Sugarcane Bagasse Particleboard Panels (Saccharum officinarum L)

Carvalho, Sylvia Thais Martins; Mendes, Lourival Marin; César, Antônia Amanda da Silva; Flórez, Jeimy Blanco; Mori, Fábio Akira; Rabelo, Giovanni Francisco

doi:10.1590/1516-1439.010515

Cited by 17 publications

(5 citation statements)

References 5 publications

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“…Specific to sound absorption, bagasse has been used in either pure form, or combined with various natural and engineered binders such as epoxy or fillers. Bagasse panels were found to have the highest acoustic absorption coefficient in the frequency range of 630 to 1000 Hz when compared with that of pine and eucalyptus‐based panels 28 . Natural fiber‐based hybrid composites comprising bagasse and bamboo charcoal were found to have an absorption coefficient of 0.4 29 .…”

Section: Introductionmentioning

confidence: 96%

“…Bagasse panels were found to have the highest acoustic absorption coefficient in the frequency range of 630 to 1000 Hz when compared with that of pine and eucalyptus-based panels. 28 Natural fiber-based hybrid composites comprising bagasse and bamboo charcoal were found to have an absorption coefficient of 0.4. 29 Investigation of ultra-light 50-mm-thick particleboard of density 0.250 g/cm 3 made from bagasse and wood planer shaving showed that absorption coefficient was 0.31 and 0.37 for bagasse and wood planer shaving particleboard, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Binder‐free, non‐carcinogenic surfactant‐based cellulose‐rich bagasse foams as acoustic panels

Bikumalla,

Bhuvana,

Tiwari

et al. 2023

J of Applied Polymer Sci

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Toward identifying environmentally friendly sound‐absorbing materials, the fabrication of biodegradable bagasse foams and their acoustic absorption and transmission loss were investigated. 10‐mm‐thick bagasse foams were fabricated using different concentrations of four non‐carcinogenic surfactants: sodium dodecyl sulfate (SDS), sodium bicarbonate (SB), potassium oleate (PO), and polyoxyethylene sorbitol ester (T20). Electron microscopy revealed that the foams comprised microfibers with a 10%–25% porosity. The foams were found to be thermally stable up to 300 °C. While foams fabricated using SDS were found to have a maximum increment in acoustic absorption (by 200%), those made of T20 had a mild decrease in absorption. The increment in absorption was attributed to the decrease in crystallinity and increase in porosity of microstructure, and the decrement to the decrease in viscous nature. Minimal changes were observed in the transmission loss of the foams. The results presented here demonstrate a simple, scalable green method to fabricate porous biodegradable foams of bagasse, without using any binder or filler, suitable for acoustic insulation that fits sustainable development objectives.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Binder‐free, non‐carcinogenic surfactant‐based cellulose‐rich bagasse foams as acoustic panels

Bikumalla,

Bhuvana,

Tiwari

et al. 2023

J of Applied Polymer Sci

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“…Fastino et al (2012) made boards from corn stalks, with a high sound absorption power. Carvalho et al (2015) produced and compared sound-absorbing boards by consuming bagasse wild pine and eucalyptus fibers and found that the acoustic properties of the boards made of bagasse are higher than the other two. The experimental test results in a study run by Lamyaa et al (2012) indicate that date palm fiber is one of the sound absorbers with proper acoustic properties at both the low and high frequencies and can be consumed as a substitute for commercial synthetic products.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and comparison the properties of acoustic boards made of date palm fiber

Alishiri

Hemmasi

Eslam

et al. 2021

BioRes

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Applying acoustic panels made of natural fibers, due to their high biodegradable characteristics, light weight, low density, cheap price and non-toxicity, are proper alternatives to acoustic absorbers made of synthetic fibers. Considering their stance and vast applicability in industry, the possibility of producing them of natural palm fibers with sodium silicate adhesive of 10 and 20% in two 16 and 32 mm thicknesses, 350 and 450 kg/m3 densities, 50 and 100 mm particles length (strands), as variable factors in 16 types of matched panels with 3 repetitions is proposed in this article. The palm-trunk discs constituted the control sample. The effect of variables on sound absorption coefficient was assessed. The effect of variable thickness and adhesive percentage on all frequencies was significant and the effect of density variable on all frequencies except 250 and 2000 Hz was also significant. The effect of particle length was significant except at the 500 Hz frequency. The effects of all variables on porosity were significant. The results of this study suggest that by applying date palm-trunk (an agricultural waste) combined with sodium silicate adhesive, industrial environment-friendly panels can be produced with proper sound absorption coefficient in the field of acoustics. This 32-mm-thick panel was composed of 80% date palm-trunk particles of 50 mm length, 450 kg/m3 density, and 20% sodium silicate adhesive.

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“…The principle of sustainable development has influenced the designers and researchers to consider environmental friendly bio-degradable fibers as an alternative sound absorbing materials for glass and synthetic fibers. Many natural fibers like rice husk [ 8 , 9 , 10 , 11 , 12 ], coir [ 13 ], jute [ 14 ], kenaf [ 15 ], banana pseudo stem [ 16 ], hemp [ 17 ], sugarcane bagasse [ 18 ] have been studied and their feasibility to use in polymer composites and acoustic panels have been studied. We have done extensive literature study on those research articles to access the properties of the fiber which are given more importance.…”

Section: Introductionmentioning

confidence: 99%

Elucidating the Sound Absorption Characteristics of Foxtail Millet (Setariaitalica) Husk

et al. 2020

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The current study deals with the analysis of sound absorption characteristics of foxtail millet husk powder. Noise is one the most persistent pollutants which has to be dealt seriously. Foxtail millet is a small seeded cereal cultivated across the world and its husk is less explored for its utilization in polymer composites. The husk is the outer protective covering of the seed, rich in silica and lingo-cellulose content making it suitable for sound insulation. The acoustic characterization is done for treated foxtail millet husk powder and polypropylene composite panels. The physical parameters like fiber mass content, density, and thickness of the composite panel were varied and their influence over sound absorption was mapped. The influence of porosity, airflow resistance, and tortuosity was also studied. The experimental result shows that 30-mm thick foxtail millet husk powder composite panel with 40% fiber mass content, 320 kg/m3 density showed promising sound absorption for sound frequency range above 1000 Hz. We achieved noise reduction coefficient (NRC) value of 0.54. In view to improve the performance of the panel in low-frequency range, we studied the efficiency of incorporating air gap and rigid backing material to the designed panel. We used foxtail millet husk powder panel of density 850 kg/m3 as rigid backing material with varying air gap thickness. Thus the composite of 320 kg/m3 density, 30-mm thick when provided with 35-mm air gap and backing material improved the composite’s performance in sound frequency range 250 Hz to 1000 Hz. The overall sound absorption performance was improved and the NRC value and average sound absorption coefficient (SAC) were increased to 0.7 and 0.63 respectively comparable with the commercial acoustic panels made out of the synthetic fibers. We have calculated the sound absorption coefficient values using Delany and Bezlay model (D&B model) and Johnson–Champoux–Allard model (JCA model) and compared them with the measured sound absorption values.

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Acoustic Characterization of Sugarcane Bagasse Particleboard Panels (Saccharum officinarum L)

Cited by 17 publications

References 5 publications

Binder‐free, non‐carcinogenic surfactant‐based cellulose‐rich bagasse foams as acoustic panels

Binder‐free, non‐carcinogenic surfactant‐based cellulose‐rich bagasse foams as acoustic panels

Evaluation and comparison the properties of acoustic boards made of date palm fiber

Elucidating the Sound Absorption Characteristics of Foxtail Millet (Setariaitalica) Husk

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