ABSTRACT
This study gave an insight on how we can utilise the unique features of bio-composites of albumen-glycerol, reinforced with natural fibres in the production of orthopaedic cast. Studies on the use of natural fibres as a replacement to man-made fibres in fibre-reinforced composites has increased and opened up for further industrial possibilities. They have the advantages of low density, low cost, biodegradable and environmental friendly. However, the main disadvantages of natural fibres in manufacturing composites are the poor compatibility between fibre and matrix and the relatively high moisture sorption. Therefore, chemical treatments were used in modifying the fibres surface properties. This work documents an attempt to create an alternative fibre reinforced composite material for possible use in the replacement of Plaster of Paris (POP), used for making orthopaedic cast. The matrix is an albumen/glycerol mix and the fibres are raffia, kenaf and sisal fibres. The bio-composites were analysed by standard methods such as mechanical tests, TGA and SEM. The mechanical properties of this composite material showed a promising future in the orthopaedic field. Natural fibre cast as external immobilising is considered a better orthopaedic modality than the POP as it provides rigid fixation, less time consuming and fewer complications.
