Premium
Study of thermophysical and mechanical properties of particulate composite polyethylene‐CaCO 3
Author(s) -
Barta Štefan,
Bielek Jozef,
Dieška Peter
Publication year - 1997
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/(sici)1097-4628(19970523)64:8<1525::aid-app10>3.0.co;2-x
Subject(s) - percolation threshold , materials science , isotropy , composite number , composite material , polyethylene , particulates , shear modulus , percolation (cognitive psychology) , percolation theory , modulus , thermal conductivity , thermodynamics , conductivity , physics , electrical resistivity and conductivity , chemistry , organic chemistry , quantum mechanics , neuroscience , biology
Starting from the formulae for effective parameters of the particulate composite derived within the average field approximation, the formula for the percolation threshold is derived. The maximum value of the percolation threshold is ⅓ in the case of the isotropic granules of globular shape. Further, the experimental data obtained from the measurement of effective thermal conductivity and elastic shear modulus of the particulate composite polyethylene‐CaCO 3 cannot be interpreted in the framework of the average field approximation. For this reason it was necessary to modify the formulae for effective parameters, and they were able to describe the experiment. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1525–1530, 1997