Publication Type:

Journal Article


Polymer Composites, Volume 33, Number 7, p.1064-1070 (2012)



Adhesion, Constant volumes, Fiber-matrix adhesion, Fibers, Fractured surfaces, Glass fibers, Hybrid composites, Hybrid materials, Impact performance, Impact property, Impact strength, Individual fibers, Pineapple leaf fiber, Polyester composites, Scanning electron micrographs, scanning electron microscopy, Tensile and impact properties, Tensile strength, Volume fraction


The tensile and impact performance of intimately mixed (IM) hybrid composites based on glass fiber (GF) and pineapple leaf fiber (PALF) was investigated. The composite was fabricated at constant volume fraction of fiber 0.3 V f (fiber 0.3 and matrix 0.7). Keeping the volume fraction of matrix a constant (0.7 V f), we have varied the PALF/GF ratio from 0 to 1. Incorporation of 0.1 volume fraction of GF increases the tensile strength of the hybrid composite by about 28%. The tensile strength showed a further increase when the volume fraction is changed to 0.7 and 0.9 V f of GF. Intimately mixed hybrid composites exhibited higher impact strength than the individual fiber composites; the composite of PALF/GF ratio 70:30 showed maximum impact strength of 1203 J/m. A positive hybrid effect is observed for impact properties. Scanning electron micrographs of the fractured surfaces were examined to understand the fiber-matrix adhesion. Copyright © 2012 Society of Plastics Engineers.


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Cite this Research Publication

LaUma Devi, Bhagawan, S. Sb, and Thomas, Sa, “Polyester composites of short pineapple fiber and glass fiber: Tensile and impact properties”, Polymer Composites, vol. 33, pp. 1064-1070, 2012.