Abstract
Composites of chopped sunhemp fibres with polyester resin have been examined; ultimate tensile strength (UTS) and impact strength have been determined. UTS of sunhemp-polyester composites increases with increase in volume fraction of sunhemp fibre. This increase in UTS has been explained on the basis of adhesion between fibre and matrix. Impact strength of the composites increases with increase in volume fraction of fibre because the fibres help in arresting and diverting cracks.
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