Structure of high-density polyethylene obtained by hydrostatic extrusion in solid state

A number of structural characteristics were calculated from X-ray diffraction patterns for high-density polyethylene obtained by hydrostatic extrusion at 393 and 353 K: dimensions of crystallites and X-ray long periods, the degree of crystallite orientation, total and fibrillar degrees of crystallinity (both volume and mass), weight fractions of intra- and inter-fibrillar amorphous interlayers. With increasing extrusion draw ratio the...