Surface morphologies of UHMCFs were characterized by A QuantaFEG250 model scanning electron microscopy (SEM). An accelerationvoltage of 5 kV was utilized and the amplification was 10,000 times in ascanning mode. A Dimension 3100 V model atomic force microscopy(AFM) was employed to investigate surface topography and surfaceroughness operating in the tapping mode. Height and deflection imageswere collected in a 3 μm×3 μm area with the height of 500 nm.