Damping Behavior of Highly Entangled High Density Polyethylene after Uniaxial Step Strains

被引：4
|
作者：
Kabeya, Takumi [1 ]
Yoshikawa, Katsuyuki [1 ]
Horinaka, Jun-ichi [1 ]
Takigawa, Toshikazu [1 ]
机构：
[1] Kyoto Univ, Dept Chem Mat, Nishikyo Ku, Kyoto 6158510, Japan
来源：
NIHON REOROJI GAKKAISHI | 2015年 / 43卷 / 01期
关键词：
High density polyethylene; Highly entangled melt; Damping function; Uniaxial deformation; Stress relaxation; DOI-EDWARDS THEORY; STRESS-RELAXATION; RHEOLOGICAL PROPERTIES; NONLINEAR RHEOLOGY; ELONGATIONAL FLOW; POLYMER MELTS; SHEAR; EXTENSIONS; MODULUS; LIQUIDS;
D O I：
10.1678/rheology.43.11
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Stress relaxation after a large step strain is conducted for melts of highly entangled high density polyethylene in the uniaxial deformation by a conventional tensile tester. Prior to the stress relaxation tensile tests are made to confirm the uniformity of the elongation. The damping function for the melts in uniaxial deformation is almost identical or close to the prediction by the Doi-Edwards (DE) theory: Stronger damping than the DE prediction, which is often observed for highly entangled polymer melts in shear, is not observed in the uniaxial deformation.
引用
收藏
页码：11 / 15
页数：5
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