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Simultaneous measurement of resistance and viscoelastic responses of carbon black‐filled high‐density polyethylene subjected to dynamic torsion
Author(s) -
Zhou Jianfeng,
Song Yihu,
Shangguan Yonggang,
Zheng Qiang
Publication year - 2008
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.28058
Subject(s) - materials science , viscoelasticity , composite material , high density polyethylene , dynamic modulus , dynamic mechanical analysis , carbon black , dissipation factor , torsion (gastropod) , polyethylene , modulus , polymer , dielectric , medicine , natural rubber , surgery , optoelectronics
The conduction and viscoelastic responses to temperature are measured simultaneously for carbon black (CB) filled high‐density polyethylene (HDPE) subjected to dynamic torsion. PTC/NTC transition was correlated with the loss tangent peak and the quasi modulus plateau, which was ascribed to the filler network. The bond‐bending model of elastic percolation networks was used to reveal the structural mechanisms for the cyclic resistance changes at different temperatures. The resistance changes at lower temperatures depended on the deformation of the polymer matrix, while the changes in melting state were mainly attributed to the rearrangement of the CB network. A simple scaling law is derived to relate resistance and dynamic storage modulus in the melting region. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008