Analysis of natural fiber polymer composites: Effects of alkaline treatment on sound absorption

Jayamani, Elammaran; Hamdan, Sinin; Bakri, Muhammad Khusairy Bin; Heng, Soon Kok; Rahman, Rezaur; Kakar, Akshay

doi:10.1177/0731684415620046

Cited by 38 publications

(24 citation statements)

References 27 publications

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“…It is due to the fact that higher fiber volume fraction allows the sound waves to pass through a more tortuous path causing higher friction, thus higher energy loss takes place. Furthermore, natural fibers have a porous surface and internal structure with a hollow lumen which helps in the dissipation of sound energy [31].…”

Section: Effect Of Fiber Content On Sound Absorption Coefficientmentioning

confidence: 99%

Acoustic, Mechanical and Thermal Properties of Green Composites Reinforced with Natural Fibers Waste

et al. 2020

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The use of acoustic panels is one of the most important methods for sound insulation in buildings. Moreover, it has become increasingly important to use green/natural origin materials in this area to reduce environmental impact. This study focuses on the investigation of acoustic, mechanical and thermal properties of natural fiber waste reinforced green epoxy composites. Three different types of fiber wastes were used, e.g., cotton, coconut and sugarcane with epoxy as the resin. Different fiber volume fractions, i.e., 10%, 15% and 20% for each fiber were used with a composite thickness of 3 mm. The sound absorption coefficient, impact strength, flexural strength, thermal conductivity, diffusivity, coefficient of thermal expansion and thermogravimetric properties of all samples were investigated. It has been found that by increasing the fiber content, the sound absorption coefficient also increases. The coconut fiber-based composites show a higher sound absorption coefficient than in the other fiber-reinforced composites. The impact and flexural strength of the cotton fiber-reinforced composite samples are higher than in other samples. The coefficient of thermal expansion of the cotton fiber-based composite is also higher than the other composites. Thermogravimetric analysis revealed that all the natural fiber-reinforced composites can sustain till 300 °C with a minor weight loss. The natural fiber-based composites can be used in building interiors, automotive body parts and household furniture. Such composite development is an ecofriendly approach to the acoustic world.

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Section: Effect Of Fiber Content On Sound Absorption Coefficientmentioning

confidence: 99%

Acoustic, Mechanical and Thermal Properties of Green Composites Reinforced with Natural Fibers Waste

et al. 2020

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“…Therefore, this material is particularly suitable for underwater acoustic absorption materials, and it has the advantages of light weight and easy molding compared with the material added with metal powder. The shortcoming is that the performance of the universal sound-absorbing material in the air is not high, and the elastomer rubber has disadvantages such as poor flame retardancy and aging due to its own problems [7].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Performance analysis of ethylene-propylene diene monomer sound-absorbing materials based on image processing recognition

Wang

Xiong

2018

J Image Video Proc.

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In order to study the performance of rubber sound-absorbing materials, this study processed the surface of ethylene-propylene diene monomer (EPDM) rubber sound-absorbing materials based on image recognition. Simultaneously, in this study, microscopic images were obtained from macroscopic rubber materials, and the images were processed to become standard images with certain characteristics. In addition, this study combines image processing to obtain pictures related to sound absorption performance. In the identification of rubber soundabsorbing materials, this study used EPDM rubber as the material, and studied the influence of various factors on the sound absorption performance of rubber sound-absorbing materials from the technical point of view and obtained the corresponding processed images. Through research, it is found that the sound-absorbing materials of this study have good sound-absorbing effects based on the control of relevant process conditions, and the image recognition and processing functions can be applied to the research of rubber sound-absorbing materials.

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“…They used plain weave ramie fabric and short fibers for the manufacturing of composites with thickness 1 cm. The results shown in Figure 32 reveal that by adding a plasticizer and/or flame-retardant finish, the sound absorption is improved [69].…”

Section: Effect Of Adding Plasticizer and Flame Retardantsmentioning

confidence: 99%

“…The sound absorption coefficient of sisal-fiber-based polylactic acid biocomposites was also reported. It was found that by increasing frequency, the sound absorption coefficient increases proportionally [69]. Yang et al conducted a study on the acoustic properties of jute-, ramie-, and flax-fiber-based composites [25].…”

Section: Effect Of Frequencymentioning

confidence: 99%

Factors Affecting Acoustic Properties of Natural-Fiber-Based Materials and Composites: A Review

et al. 2021

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Recently, very rapid growth has been observed in the innovations and use of natural-fiber-based materials and composites for acoustic applications due to their environmentally friendly nature, low cost, and good acoustic absorption capability. However, there are still challenges for researchers to improve the mechanical and acoustic properties of natural fiber composites. In contrast, synthetic fiber-based composites have good mechanical properties and can be used in a wide range of structural and automotive applications. This review aims to provide a short overview of the different factors that affect the acoustic properties of natural-fiber-based materials and composites. The various factors that influence acoustic performance are fiber type, fineness, length, orientation, density, volume fraction in the composite, thickness, level of compression, and design. The details of various factors affecting the acoustic behavior of the fiber-based composites are described. Natural-fiber-based composites exhibit relatively good sound absorption capability due to their porous structure. Surface modification by alkali treatment can enhance the sound absorption performance. These materials can be used in buildings and interiors for efficient sound insulation.

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Analysis of natural fiber polymer composites: Effects of alkaline treatment on sound absorption

Cited by 38 publications

References 27 publications

Acoustic, Mechanical and Thermal Properties of Green Composites Reinforced with Natural Fibers Waste

Acoustic, Mechanical and Thermal Properties of Green Composites Reinforced with Natural Fibers Waste

RETRACTED ARTICLE: Performance analysis of ethylene-propylene diene monomer sound-absorbing materials based on image processing recognition

Factors Affecting Acoustic Properties of Natural-Fiber-Based Materials and Composites: A Review

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