Changes in Polyethylene Surface Morphology (IMAGE)

World Scientific

Changes in Polyethylene Surface Morphology

Caption

This sequence of scanning electron microscopy (SEM) images demonstrates drastic changes in polyethylene surface morphology resulting from the fabrication process. The initial polymer particulate material resembled tightly wound balls of string (a). Comparing this to the extruded sample (b), however, polymer disentanglement as a result of the high shear rate Couette-based extrusion process is evident. SEM images of 50× (c) and 100× (d) drawn films. As shown, film structure is uniform fibrous with minimal defects. Scale bar represents 100 microns (a), and 2 microns (b-d).

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<I>Technology</I>

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