Abstract��
In this article,the effect of microstructure on mechanical properties of blends was studied using polypropylene/polyamide-1010(PP/PA1010) as model blends,and predicted blends tensile strength with micromechnical models.The ratio of average chord lengths of the two phases (L1/L2) and mass center distance (D) were used to characterize blends microstructure.Tensile strength was found to decline with increase of the ratio of average chord lengths of the two phases (L1/L2) and mass center distance (D).The minimum fraction of dispersed phase calculated was found close to the phase inversion region determined by observing the blend morphologies.In compatibilized system,the theoretical value was found to be very close to the experimental data due to the improved interface adhension.
2003, Vol. 20 
