Microstructure and Mechanical Properties of Polycaprolactone/Calcium Sulfate Particle and Whisker Composites

Polycaprolactone (PCL)/calcium sulfate (CS) particle and whisker composites were prepared by co precipitation method. Scanning electron microscope (SEM) was used to observe the microstructure of the composites. SEM observation shows that the CS particles and whiskers are well dispersed in PCL. Results of mechanical tests show that both of the particle and whisker addition could improve the flexural modulus and impact strength of composites. The flexural modulus and impact strength of the whisker composites is higher than that of the particle composites.