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Physical & mechanical and chemical properties on papaya tree bast fibers from different portions

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Abstract

This paper aims to investigate the physical, mechanical, and chemical properties of papaya tree bast fibers (Carica papaya L) from different portions. Papaya bast fibers (PBFs) were extracted from the boiling process in three different portions of bast (PBF 1, PBF 2, and PBF 3). The physical properties of papaya bast fibers obtained were relative density 820–1130 kg/m3, count 14–22 Tex, diameter 600–767 µm, and wettability 78 to 86°. The mechanical properties were determined by strain (0.8–1.5%), tenacity (10.2–23.1 cN/Tex), tensile strength (4.4–7.8 MPa), Young's modulus (5.2–5.5 MPa) and specific modulus (5–6) through single fiber tensile test. Chemical properties were evaluated using FEG-SEM which showed a strong presence of cells in PBF 1, PBF 2, and PBF 3. FTIR and X-ray analysis proved that PBFs are rich in cellulose with a crystallinity index of 59.2%—67% of PBF 1 to PBF 3. The results revealed variations in the physical, mechanical, and chemical properties of PBFs among different portions. The papaya bast fibers showed properties, such as lightweight, porous, and mechanical properties, which are similar to other bast fibers, which are usually used in the manufacture of composites and applied in the packaging (food industry). In conclusion, this study provides valuable insights into the physical, mechanical, and chemical properties of papaya bast fibers from different portions. These findings contribute to the understanding of the potential applications of papaya bast fibers and serve as a foundation for future research and development in this field.

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Acknowledgements

This study was supported by our Lord and financed in part by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brazil (CAPES)—Finance Code 001. We thank our colleagues at the Textile Quality Control Laboratory – LABCTEX and Textile Engineering Post Graduate Program—PPgET at the Federal University of Rio Grande do Norte.

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  1. Textile Engineering Graduate Program (PPGET), Federal University of Rio Grandedo Norte (UFRN), Avenida Senador Salgado Filho, CEP: 59.078-970, Lagoa Nova, Natal, RN, 3000, Brazil

    Caroliny M. Santos, Thiago F. Santos, Murilo Macedo, Marcos Aquino & Salete Martins Alves

  2. Natural Composites Research Group Lab, Department of Materials and Production Engineering, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS), King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok, Thailand

    Sanjay Mavinkere Rangappa & Suchart Siengchin

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Santos, C.M., Santos, T.F., Rangappa, S.M. et al. Physical & mechanical and chemical properties on papaya tree bast fibers from different portions. Biomass Conv. Bioref. (2023). https://doi.org/10.1007/s13399-023-04513-1

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