Abstract: The axial compressional behavior of ultra-high molecular weight polyethylene (UHMW-PE) film is studied by means of polarizing optical microscopy, scanning electron microscopy and X-ray diffraction in this paper. The results show that a lot of kink bands are formed at about 75° and 90°. It is suggested that (110)〈001〉 and (100)〈001〉crystallo-graphic slips play the dominant role in the formation of the 75° kink bands and 90° kink bands.

Key words: Ultra-high molecular weight polyethylene film, Axial compression, Crystallo-graphic slip