Mechanical and acoustic properties of alkali treated agricultural waste reinforced sustainable polyurethane composites

KOÇAK E. D., Olcay H., YILDIZ Z.

Journal of Reinforced Plastics and Composites, cilt.42, sa.21-22, ss.1191-1203, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 21-22
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1177/07316844221147641
  • Dergi Adı: Journal of Reinforced Plastics and Composites
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1191-1203
  • Anahtar Kelimeler: Agricultural waste, alkali treatment, polyurethane, sound absorption, sustainability
  • Marmara Üniversitesi Adresli: Evet

Özet

In this research, polyurethane (PU) foam composites were prepared by using various agricultural waste (rice husk, corn silk, artichoke stem) particles. In order to enhance the compatibility and adhesion between the waste particle and PU matrix, alkali treatment was employed. The alkali treated particles were chemically and morphologically characterized by Fourier transform infrared (FTIR) spectroscopy, cellulose determination instrument, and scanning electron microscopy (SEM), respectively. The effects of the alkali treatment on the structural, morphological, mechanical, and acoustic properties of the overall PU foam composites were all examined. Due to the differences in chemical compositions of the agricultural wastes, the alkali treatment affected the acoustic and mechanical properties of the PU foam composites in varying ratios. The PU foam composite reinforced with alkali treated artichoke stem waste particles showed the highest tensile strength value of 265 kPa, whereas the highest sound absorption value of 40.5% as an enhancement on the acoustic properties compared to the blank PU foam composite was recorded in corn silk waste particle loaded sample.