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Deformation behavior and mechanical properties of hard elastic and porous films of polyethylene
Author(s) -
Elyashevich Galina,
Karpov Evgenii,
Kozlov Alexandr
Publication year - 1999
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19991470110
Subject(s) - materials science , composite material , polyethylene , elastic modulus , microporous material , ultimate tensile strength , porosity , extrusion , annealing (glass) , composite number , deformation (meteorology)
Hard elastic samples of linear polyethylene were prepared by melt extrusion at a high velocity of the melt flow and by subsequent annealing of crystallized samples. The deformation behavior of hard elastic samples obtained by annealing of as‐spun samples at different temperatures has been analyzed at uniaxial extension resulting in formation of porous structure. Mechanical properties of microporous films in the longitudinal and transverse directions have been investigated. Composite systems consisting of a microporous polyethylene film and a thin layer of an electroconducting polymer have been prepared. Mechanical properties of composite systems, such as elastic modulus, tensile strength, and break elongation, have been compared with the properties of polyethylene substrates.