Jute and Luffa Fiber-Reinforced Biocomposites: Effects of Sample Thickness and Fiber/Resin Ratio on Sound Absorption and Transmission Loss Performance


KÖRÜK H., Ozcan A. C., GENÇ G., Şanlıtürk K. Y.

JOURNAL OF NATURAL FIBERS, vol.19, no.13, pp.6239-6254, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 13
  • Publication Date: 2022
  • Doi Number: 10.1080/15440478.2021.1907832
  • Journal Name: JOURNAL OF NATURAL FIBERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Biotechnology Research Abstracts, CAB Abstracts, Communication Abstracts, Compendex, Environment Index, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.6239-6254
  • Keywords: biocomposites, fiber/resin ratio, Jute, luffa, sound absorption, transmission loss
  • Istanbul Technical University Affiliated: Yes

Abstract

The acoustic properties of natural fiber-reinforced composites should be identified before using these materials in various engineering applications including sound and vibration isolation. This study investigates the effects of sample thickness and fiber/resin ratio on the acoustic performance of jute and luffa fiber-reinforced biocomposites. For this purpose, jute and luffa composite samples with different thicknesses and fiber/epoxy ratios are manufactured and their sound absorption coefficients (SACs) and transmission losses (TLs) are determined using impedance tube method. Thickness-dependent tendencies of the SACs and TLs of jute and luffa composites for low-, medium-, and high-frequency ranges are identified. The effect of fiber/epoxy ratio on the acoustic properties of jute and luffa composites as a function of frequency are determined. Furthermore, the SACs and TLs of some natural fiber-based samples with different thicknesses are predicted using mathematical models and the theoretical and experimental results are compared and evaluated.