Preparation and Water Absorption Properties of Parinari polyandra Fruit Shell Reinforced Epoxy Composites

Temitope E Odetoye, Olaide O Ashaolu


— The need to protect the environment has led to renewed research interest in sustainable bio-based materials such as natural fibre-reinforced polymer composites. Parinari polyandra (Benth) fruit shell (PPFS) is a woody biomass residue that is scarcely explored. This work reports the use of parinari as the fiber reinforcement in epoxy resin matrix biocomposites. The biocomposites were prepared from 2mm sized particles using hand layup method and by varying fibre contents from 0 to 40 wt %. The biocomposites affinities for water were determined by short and the long term water absorption tests according to ASTM standards.  Water absorption capabilities of the biocomposites increased with increasing fibre contents while 10 wt% fibre content gave excellent moisture resistance property. The lowest water absorption of  0.01 and 0.2% for short term and long term tests respectively occurred in the 10 wt % filler content which compared very well with the control  at short term test. PPFS is hereby suggested as a suitable natural filler material for bio-epoxy composite with desirable water absorption resistance properties.

Keywords— Agricultural waste, Biocomposites, Parinari, Water absorption, West Africa

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