Abstract
Abstract The effect of short polyester terephthalate (PET) fiber loading on the mechanical properties of thermoplastic polyurethane has been studied. Tensile strength and tear strength were increased with fiber loading after an initial reduction up to 10–20 phr. Elongation at break was reduced drastically beyond 10 phr fiber loading. Impact strength registered a reduction with increasing fiber content. Anisotropy in mechanical properties was evident beyond 20 phr fiber loading. Tensile strength and tear strength were higher in the longitudinal orientation of fibers than in the transverse orientation of fibers. Scanning electron microscopic studies of the fracture surfaces revealed good correlation with the observed properties.
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