Modification of Polyurethane Elastomers; preparation and mechanical properties

Polyurethane (pur) was prepared using polyo (polyester) and diphenylmethane 4, 4- diisocyanate (mdi) and modification with different sillica ratio. the casted samples were characterized by instron 5566 machine to study mechanical properties of the modified polyurethane (hardness, elasticity, strength, elongation at break and young modulus). the scanning electron microscopy (sem) was used to study the morphology and structure the modified polyurethane. the scanning electron microscopy indicated that the particles were dispersed and embedded well within the polyurethane matrix which enhance of the mechanical properties of the modified polyurethane.