Effect of orientation of molecular chains on fatigue behavior of solid-state extruded high-density polyethylene

Norihiro Kaiya, Atsushi Takahara, Tisato Kajiyama

Research output: Contribution to journalConference articlepeer-review

Abstract

In this study, the solid-state extruded high-density polyethylene with various extrusion ratios was prepared and the effect of molecular chain orientation on the fatigue behavior of HDPE extrudate was investigated. It is found that the fatigue fracture behavior of the extrudates is different from that of the unextrudate. The direction of cyclic deformation is same as that of the extruding direction. The fatigue fracture surface of the unextrudate was normal to the direction of the cyclic straining. The fatigue fracture surface of the extrudates exhibited characteristic feature depending on the mode of cyclic straining. In the case of the tension-compression type fatigue tests, the fracture surface inclined to the direction of cyclic deformation by 45 degrees.

Original languageEnglish
Pages (from-to)130-131
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Volume29
Issue number2
Publication statusPublished - Sep 1 1988
EventPolymer Preprints - American Chemical Society - Los Angeles, CA, USA
Duration: Sep 25 1988Sep 30 1988

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

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