Preparation of Unidirectional Grewia Serrulata Fiber-Reinforced Polyester Composites and Evaluation of Tensile and Flexural Properties

  • G. T. Mahesha, S. B. Satish, K. M. Vijaya, K. S. Bhat
  • Journal of Natural Fibers, August 2016, Taylor & Francis
  • DOI: 10.1080/15440478.2015.1081575

Natural fibres from Gravia serrulata used to prepare composites with unsaturated polyester resins

What is it about?

Partially biodegradable composites were prepared using bast fibers extracted from Grewia Serrulata trees with unsaturated polyester resin. Different durations of fiber pretreatment and volume fraction variations were tried for fabricating the composites. Hand lay-up technique was used for the fabrication; tensile strength and flexural strength of the specimens were tested following American Society for Testing and Materials (ASTM) standards. It is found that the mechanical properties of Grewia Serrulata bast fiber-reinforced unsaturated polyester composites are superior in comparison with relevant properties of unsaturated polyester resin. Such natural fiber-reinforced composites are adaptable in applications such as automotive interiors, partition walls, and false ceilings and ensures easy material disposal ways at the end of service life as raw materials used are mostly biodegradable.

Why is it important?

Fibres from Gravia serrulata used to prepare composites with unsaturated polyester resins


Dr Subrahmanya Bhat K
Manipal Institute Of Technology, Manipal Academy of Higher Education

(i) G. T. Mahesha, B. S Shenoy B, M. Vijaya Kini, K. Subrahmanya Bhat, Preparation of unidirectional Grewia Serrulata reinforced polyester composites and evaluation of tensile and flexural properties, J. Nat. Fibres, 13(5), 547-554, 2016. (ii) G. T. Mahesha, B. S Shenoy B, M. Vijaya Kini, K. Subrahmanya Bhat, Mechanical Characterization and water ageing behavior studies of Grewia serrulata bast fiber reinforced thermoset composites, J. Nat. Fibres., 14(6), 788-800, 2017. (iii) T. G. Yashas Gowda, M.R. Sanjay, K Subrahmanya Bhat, P. Madhu, P. Senthamaraikannan, B. Yogesha, Polymer Matrix-Natural Fiber Composites: An Overview, Cogent Engg, 2018, Article id: 1446667 (13 page). (iv) Madhu P, Sanjay M R, Pradeep S, Subrahmanya Bhat K, Yogesha B, S. Siengchin, Characterization of cellulosic ber from Phoenix pusilla leaves as potential reinforcement for polymeric composites, J Mat. Res. Tech., 8(3), 2597-2604, 2019; Scopus-Q1. (v) P. Senthamaraikannan, M.R. Sanjay, K S. Bhat, N. H. Padmaraj, M. Jawaid, Characterization of natural cellulosic fiber from bark of Albizia amara, J. Nat. Fibers, 16(8), 1124-1131, 2019; Scopus-Q2. (vi) Mahesha G T, Subrahmanya Bhat K, Padmaraja N H, Biodegradable Natural Fiber Reinforced Polymer Matrix Composites: Technical updates, AIP Conf. Proceedings, , 2166, 020001, 2019; Scopus-Q3. (vii) P. Balasundar, P. Narayanasamy, S Senthil, N A A Dhabi, R. Prithvirajan, R. Shyam Kumar, T. Ramakumar, K. Subrahmanya Bhat, Physico-Chemical study of Pistachio (Pistacia vera) Nut shell particles as a Bio-filler for Eco-friendly Composites, Mat. Res. Exp., 6(10), 105339, 2019; Scopus-Q2.

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The following have contributed to this page: Dr Subrahmanya Bhat K