Abstract
Coir Fibres (CF) and Pineapple Leaf Fibres (PALF) are valuable natural fibres which are abundantly available in Malaysia as agricultural wastes. The aim of this study is to investigate the effects of alkali (6%), silane (2%), and calcium hydroxide (6%) on tensile, morphological, thermal, and structural properties of CF and PALF to improve their interfacial bonding with Polylactic Acid (PLA) matrix. Scanning electron microscopy and Fourier transform infrared spectroscopy were used to observe the effectiveness of the chemical treatments in the removal of impurities. Alkali treated fibres yield the lowest fibre diameter and the highest Interfacial Stress Strength (IFSS). Thermogravimetric Analysis (TGA) shows improved thermal stability in silane treated CF and alkali treated PALF. It is assumed that fibre treatments can help to develop biodegradable CF and PALF reinforced PLA biocomposites for industrial applications.
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