A MANDREL-ROTATING DIE TO PRODUCE HIGH-HOOP-STRENGTH HDPE PIPE BY SELF-REINFORCEMENT

Authors
JIANG L SHEN KZ JI JL GUAN Q
Citation
L. Jiang et al., A MANDREL-ROTATING DIE TO PRODUCE HIGH-HOOP-STRENGTH HDPE PIPE BY SELF-REINFORCEMENT, Journal of applied polymer science, 69(2), 1998, pp. 323-328
Citations number
15
Categorie Soggetti
Polymer Sciences
Journal title
Journal of applied polymer science → ACNP
ISSN journal
00218995
Volume
69
Issue
2
Year of publication
1998
Pages
323 - 328
Database
ISI
SICI code
0021-8995(1998)69:2<323:AMDTPH>2.0.ZU;2-B
Abstract
This article provides a method to obtain high-hoop-strength high-densi ty polyethylene (HDPE) pipe by mandrel-rotating extrusion. With proper ly selected processing temperature, pressure, and mandrel-rotating spe ed, the hoop strength of 90 Mpa has been got. Differential scanning ca lorimetry and X-ray scattering found the great strength enhancement wa s owning to high degree of macromolecular orientation in circumferenti al direction and the shish-kebab structure. (C) 1998 John Wiley & Sons , Inc.