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Structure and properties of self‐reinforced polyethylene prepared by oscillating packing injection molding under low pressure
Author(s) -
Guan Qing,
Shen Kaizhi,
Ji Jiliang,
Zhu Jumu
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070551310
Subject(s) - high density polyethylene , materials science , composite material , ultimate tensile strength , crystallite , modulus , polyethylene , molding (decorative) , young's modulus , melt flow index , polymer , metallurgy , copolymer
This article reports the influence of oscillating pressure on the mechanical performance of general‐grade high‐density polyethylene (HDPE). The tensile strength of 93 MPa and the Young's modulus of 5 GPa were obtained by an oscillating packing technique. The great improvement of the mechanical properties of HDPE specimens is due to the existence of the shish‐kebab crystalline structure, the orientation of the molecular chains along the flow direction, and the more perfect crystallites. © 1995 John Wiley & Sons, Inc.