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Transactions of FAMENA, Vol. 46 No. 1, 2022.

Original scientific paper

https://doi.org/10.21278/TOF.461024320

Mechanical Properties of Banana/Bamboo/Coconut Fibre Based Phenolic Hybrid Composites Made by Using Autoclave Moulding Technique

B. Rajmohan orcid id orcid.org/0000-0003-2490-1156 ; MIT Campus, Anna University, Chennai, Tamilnadu, India
K. Arunachalam orcid id orcid.org/0000-0001-6642-3100 ; MIT Campus, Anna University, Chennai, Tamilnadu, India

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Abstract

Nowadays, composite materials are greatly preferred, and they started replacing the traditional materials such as metal and wood due to their high strength-to-weight ratio. In this study, three different fibres, coconut, banana, and bamboo, are hybridized with seashell powder and phenolic resin to form polymer matrix composites. To prepare the test specimens, an autoclave moulding technique was used. The experimental design was developed as an orthogonal array utilizing the design of the experimental technique. Accordingly, experiments were conducted with respect to four factors and three levels. The factors include varying temperature, time, percentage by weight of resin, and fibre. The mechanical properties such as hardness, tensile strength, and flexural strength were experimentally measured. Also, the grey relational analysis was carried out and it can be observed that specimen 2 with a tensile strength of 20.71 MPa, the flexural strength of 41.87 MPa, and hardness 36.846 BHN (Percentage by weight of resin and reinforcement was 60 wt. % and 36 wt. %, respectively. Temperature was 70˚C and time was 15 min) was the most superior specimen to all other specimens. SEM micrographs were obtained, and surface topography was investigated. The chemical composition of the composite was determined by using the EDX analysis. The findings revealed the optimal mass percentage for superior strength, hardness, and surface morphological properties.

Keywords

natural fibres; mechanical properties; NaOH treatment; SEM analysis; EDX analysis

Hrčak ID:

277974

URI

https://hrcak.srce.hr/277974

Publication date:

29.4.2022.

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