Features of mechanical properties of polypropylene films at low temperatures

Mechanical tests of polymeric materials under cryogenic conditions enable one to determine the contributions of various structural-phase components of a polymer to the mechanism of its plastic deformation. This is of practical importance since, compared to polyethylene terephthalate and polycarbonat...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 1999-05, Vol.34 (6), p.869-871
Main Authors: Karnatsevych, L V, Vinokurov, E I, Volchok, O I, Reznichenko, T I
Format: Article
Language:English
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Summary:Mechanical tests of polymeric materials under cryogenic conditions enable one to determine the contributions of various structural-phase components of a polymer to the mechanism of its plastic deformation. This is of practical importance since, compared to polyethylene terephthalate and polycarbonate films, polypropylene films are a promising material for microfiltration membranes due to their strength and chemical stability. The quality of microfiltration polypropylene membranes can be improved if, at the moment of their breakdown by hard ions in an accelerator, the films are cooled to the temperature of liquid nitrogen (78K). Since the film is drawn through the radiation zone of an accelerator, one should know its mechanical properties at low temperatures.
ISSN:1068-820X