Banana Fibers as a Sustainable Acoustic Absorbing Materials: A Review

Abstract

This paper presents an investigation reviewed on various research topics of the natural fibers in worldwide and Thailand. Practically, the traditional synthetic fibers for noise absorbed purpose are human and environmental harmful, thus the natural fibers might be the alternative way for consumers. The characteristics of natural fibers commonly are lightweight, high strength, but less pollution and low cost. Furthermore, the agriculture wastes would be value-added and reduced on the particulate matters (PM) 2.5 communities’ nuisance from the incineration affecting human health, environment and global warning in advance. In the present, the traditional materials using for noise absorbent are derived from synthetic fibers such as asbestos and fibers glass, mostly 20 - 45 % of asbestos fibers that World Health Organization (WHO) mentioned the hazard of asbestosis regarding on lung cancer, pleurisy lung cancer and ovarian cancer about 107,000 people per year. In general, the natural fibers are classified on 3 configurations: Cellular, fibrous and granular types which are their different properties on noise reduction. Also, this review particularly presents a sound absorption coefficient (SAC) that relates to the main importance factors (for example of physical, chemical, mechanical, etc.) including an analysis of the potential chances to utilize on the sustainability of these green natural materials, especially banana fibers in Thailand. HIGHLIGHTS Many natural fibers are used for noise control as an alternative to the traditional ones. Natural fiber composites appear to be cheaper, lighter, and more environmentally friendly than glass fiber composites Many fibrous materials (for example, rice straw, coconut coir, banana fibers, etc.) have shown good sound-absorbing properties and heat insulation as well The physical, chemical, and mechanical properties of banana fibers, including the content of cellulose and lignin, can influence the ductility and elongation values, especially in the cultivated banana type The development of banana fiber reinforced paper pulp bio-composites was observed for its sound absorption coefficient GRAPHICAL ABSTRACT

Topics & Concepts