Extrusion of polymer tubing using a rotating mandrel

Journal Article (Journal Article)

A rotating mandrel in a tubing die produces multiaxial orientation in the extruded melt. If the polymer melt is quenched rapidly, some multiaxial orientation is retained in the resultant tubing. Multiaxially oriented tubing exhibits reduced crack propagation and some enhancement of yield and fracture strengths. During the processing of multiaxially oriented tubing, relaxation occurs after the melt leaves the die and gives rise to wall thickening and reduction in the lumen of the tubing; the magnitude of these effects is a function of the rate of mandrel rotation. Copyright © 1976 Society of Plastics Engineers, Inc.

Full Text

Duke Authors

Cited Authors

  • Shepherd, GW; Clark, HG; Pearsall, GW

Published Date

  • January 1, 1976

Published In

Volume / Issue

  • 16 / 12

Start / End Page

  • 827 - 830

Electronic International Standard Serial Number (EISSN)

  • 1548-2634

International Standard Serial Number (ISSN)

  • 0032-3888

Digital Object Identifier (DOI)

  • 10.1002/pen.760161210

Citation Source

  • Scopus