TY - JOUR
T1 - DEFORMATION STRUCTURES IN SOLID-STATE EXTRUDED POLYETHYLENE.
AU - Kolbeck, A. G.
AU - Uhlmann, D. R.
PY - 1976
Y1 - 1976
N2 - Deformation structures resembling kink bands have previously been reported in a number of oriented semicrystalline polymers which have undergone various modes of deformation. In the present work, such structures have been observed and studied in solid-state extruded PE which has been processed to give a biaxial, ″single-crystal″ texture. Deformation of this material by bending followed by unbending has been observed to lead to shear during the bending stage and to void formation during the unbending stage. The kink bands which form during this treatment exhibit a single morphology regardless of the axis of bending so long as the direction of compression during bending is parallel to the original extrusion direction. Besides intracrystalline slip, which is known to contribute at least in part to the process of kink band formation, mechanisms involving interlamellar slip and interfibrillar slip are also considered.
AB - Deformation structures resembling kink bands have previously been reported in a number of oriented semicrystalline polymers which have undergone various modes of deformation. In the present work, such structures have been observed and studied in solid-state extruded PE which has been processed to give a biaxial, ″single-crystal″ texture. Deformation of this material by bending followed by unbending has been observed to lead to shear during the bending stage and to void formation during the unbending stage. The kink bands which form during this treatment exhibit a single morphology regardless of the axis of bending so long as the direction of compression during bending is parallel to the original extrusion direction. Besides intracrystalline slip, which is known to contribute at least in part to the process of kink band formation, mechanisms involving interlamellar slip and interfibrillar slip are also considered.
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U2 - 10.1002/pol.1976.180140710
DO - 10.1002/pol.1976.180140710
M3 - Article
AN - SCOPUS:0016972202
VL - 14
SP - 1257
EP - 1270
JO - Journal of polymer science. Part A-2, Polymer physics
JF - Journal of polymer science. Part A-2, Polymer physics
SN - 0449-2978
IS - 7
ER -