Impact of fiber length and surface modification on the acoustic behaviour of jute fiber

Sambandamoorthy, Senthilrajan; Venkateshwaran, N.; Chinnapandi, Lenin Babu Mailan; Alavudeen, A.

doi:10.1016/j.apacoust.2020.107677

Cited by 21 publications

(9 citation statements)

References 35 publications

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“…According to YANG Wei Dong, et al, 2012, jute fiber has the best sound absorption property with SAC values from 0.8 to 0.95 at a frequency range of 750 -2000 Hz [10]. Untreated Jute fibers showed an increasing trend of SAC from 0.38 to 0.95 with increasing in fiber length (5 mm to 20 mm) [11]. In addition, according to R. Mageswaran, et al, [12], a combination of EFB and OPF showed promising SAC value from 0.81-0.98 with a frequency range of 4000 -6400 Hz [12].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Acoustic Performance of Oil Palm Frond Natural Fibers by Substitution of Jute Fiber

Nasir¹,

Sheng²,

Kean³

et al. 2021

ARMS

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Noise is defined as an unpleasant or loud sound, which may cause disturbance to others. It can damage an inner ear and even cause noise-induced hearing loss, threatening health and well-being. Researchers have successfully studied and invented many different types, shapes, and sizes of sound absorbers to absorb/control unwanted noises. A simple method used to control noise is by controlling the noise source using acoustic absorption panels, reducing noise along the transmission path, and protecting the noise at the receiving end before it reaches the receiver. Presently, the market or in most developed countries uses synthetic materials for buildings to absorb sound. The commonly used synthetic materials are glass or mineral fibers as they can be produced chemically in the factory very quickly. However, materials such as foam, rock wool, and glass wool made from minerals are recognized for their poisonous and polluting effects, which are harmful to human health and the environment. This paper reported the effect of substitution of Jute on the acoustic performance of Oil Palm Frond (OPF) natural fibers (150 kg/m3) with a thickness of 19 mm. Jute is suitable for insulating, antistatic, and low thermal conductivity. It also has a promising result of sound absorption coefficient (SAC) at lower frequency range (50 - 1000 Hz), and on the contrary for OPF, the SAC is only promising at higher frequency range (2000 Hz - 6400 Hz). Thus, it will be very remarkable to study these two blending fibers' acoustic performance. The findings show the substitution of Jute to broaden the frequency range of SAC above 0.8. For 20 % of jute substitution, SAC's frequency range above 0.8 is 1600 – 6400 Hz. Whereas for both 40 % and 60 % of jute substitution, the frequency range is marginally widened to 1400 – 6400 Hz. For 80 % of jute substitution, the frequency range of SAC above 0.8 has been increased to 1000 – 6400 Hz. An impressive result has been observed, where 100 % OPF unable to reach the SAC of 0.9 throughout the frequency range of 0 – 6400 Hz. Jute has proved its ability to improve its acoustic performance at a more comprehensive frequency range.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Acoustic Performance of Oil Palm Frond Natural Fibers by Substitution of Jute Fiber

Nasir¹,

Sheng²,

Kean³

et al. 2021

ARMS

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show abstract

“…The researchers revealed that when sample thickness increases, and air gap decreased, the non-woven samples' sound absorption and noise reduction coefficients increased. The researchers also noticed that the jute and coir non-woven fabric samples had noise reduction coefficients that were greater at low and mid frequencies than a commercially available fibreglass panel [11]. Various natural fibres such as flax fibre, hemp fibre, kenaf fibre, jute fibre, agave fibre, bamboo fibre, coir fibre, and wool are also employed in acoustic applications [12][13].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Characteristics of Jute and Coir Non-woven Fabric

Singh¹,

Kapoor²

2023

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Effective noise reduction is essential because it can influence the health and well-being of living organisms significantly, both physically and psychologically. This necessitates the use of appropriate absorbing materials to minimize the negative impact of noise. In recent years, there has been growing interest in using jute, coir and natural fibre-based acoustic materials in architectural and interior applications due to their exceptional acoustic properties, eco-friendliness, cost-effectiveness and widespread availability. The study focuses on analysing the effects of some scrutinised testing parameters of jute, coir and jute-coir blended non-woven fabric samples on noise reduction coefficient through observing sound absorption coefficient. The sound absorption coefficient was measured using the impedance tube method as per the ASTM E-1050 standard. The mean value of the sound absorption coefficient observed at frequencies 250 Hz, 500 Hz, 1000 Hz, and 2500 Hz was used to calculate the noise reduction coefficient. A three-factor & three-level Box–Behnken experimental design was used for designing research and non-woven jute, coir and jute coir blended fabric sample planning. The experimental work showed that with an increase in non-woven jute fabric sample thickness from 15 mm to 45 mm, blending jute 50 % with coir 50% and non-woven fabric samples tested by creating air gaps (15 mm to 30 mm) resulted in higher sound absorption coefficient and improved noise reduction coefficient. The experimental findings and statistical analysis revealed that blending jute with coir and increasing the thickness of non-woven fabric led to a significant improvement in the acoustic performance of the tested samples. However, increasing the air gap resulted in only a marginal improvement in acoustic performance.

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“…They observed that the coefficient correlation between the experimental and anticipated results is more than 0.95. Sambandamoorthy et al 21 studied the influence of treated fiber and its length on the SAC of jute fiber. The results revealed that a 20-mm thick fiber bundle shows the maximum SAC at all frequencies due to higher air-cavity depth and nanofibrils.…”

Section: Introductionmentioning

confidence: 99%

Sound absorption performance of natural areca plant husk fibers: Experimental and theoretical study

MB,

GC,

Pitchaimani

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Fibers extracted from plant wastes can be used for sound absorption (SA) applications in vehicles due to its lightweight and porosity. The SA capability of raw areca fibers bundle (RAFB) as a function of the density and thickness of the test specimen is analyzed. Experimental results obtained using the impedance tube approach reveal that an increase in the specimen bulk density and thickness improves the SA capability of RAFB. Similarly, hollow air volume behind the sample enhances the SA in the lower frequency range. Theoretical results predicted using the Johnson–Champoux–Allard model match well with the experimental predictions. The ability of the RAFB to absorb sound is demonstrated to be equivalent to other commercially available natural and artificial fibers by comparing the results available in the literature.

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Impact of fiber length and surface modification on the acoustic behaviour of jute fiber

Cited by 21 publications

References 35 publications

Enhancement of Acoustic Performance of Oil Palm Frond Natural Fibers by Substitution of Jute Fiber

Enhancement of Acoustic Performance of Oil Palm Frond Natural Fibers by Substitution of Jute Fiber

Acoustic Characteristics of Jute and Coir Non-woven Fabric

Sound absorption performance of natural areca plant husk fibers: Experimental and theoretical study

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