Tensile Characterization of Pre-harvest Treated Pineapple Leaf Fibre | Journal of Engineering ..

The aim of this study was to see how field practise affected the tensile properties of pineapple leaf fibre (PAFL). Calcium nitrate (Ca(NO3)2) was applied to pineapple leaves in the field at four different concentrations (0 mg/l, 100 mg/l, 200 mg/l, and 300 mg/l). All of the treatments were applied twice monthly for a total of five months via foliar application.After five months of treatment, the pineapple leaves were harvested and their fibre extracted using the retting process.Furthermore, the PALF's cellulose content was calculatedusing an approved process.Using ASTM International certified methods, the extracted fibre was tensile tested.The preharvested treatment had a substantial (p 0.5) effect on the tensile properties of the PALF, according to the results of the tensile test. As the treatment concentration increased from 0 mg/l to 300 mg/l, the tensile strength increased from 583.67 MPa to 880.83 MPa, and the Young's modulus increased from 23.77 GPa to 28.23 GPa.As the treatment concentration increased from 0 mg/l to 300 mg/l, the tensile elongation decreased from 3.13 mm to 1.83 mm.In terms of cellulose content, the analysis found that as the treatment concentration wasincreased, the cellulose content of the fibre increased significantly (p0.05). The PAFL had a cellulose content of 63.6 percent at a concentration of 0 mg/l, which rose linearly to 77 percent at a concentration of 300 mg/l.These findings show that field experience significantly improved PALF's ability in composites manufacturing and other industrial applications.

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