Regularities of Low-Temperature Deformation and Fracture of Polyimide Films of Kapton H Type of Different Thickness

Regularities of Low-Temperature Deformation and Fracture of Polyimide Films of Kapton H Type of Different Thickness

The mechanical characteristics (limit of forced elasticity σforc, fracture stress σfr, relative deformation to failure εfr) of polyimide films of kapton H type under uniaxial tension conditions along the direction of drawing in the temperature range (4.2-293 K), deformation rates (10-5 - 10-3 s-1) a...

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Veröffentlicht in:East European journal of physics 2020-01 (4), p.144-153
Hauptverfasser: Viktory A. Lototskaya, Leonid F. Yakovenko, Evgeniy N. Aleksenko, Vyacheslav V. Abraimov, Wen Zhu Shao
Format: Artikel
Sprache:eng
Schlagworte:
deformation
fracture stress
limit of forced elasticity
low temperatures
polyimides
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Zusammenfassung:The mechanical characteristics (limit of forced elasticity σforc, fracture stress σfr, relative deformation to failure εfr) of polyimide films of kapton H type under uniaxial tension conditions along the direction of drawing in the temperature range (4.2-293 K), deformation rates (10-5 - 10-3 s-1) and film thicknesses (25, 75 and 125 μm) were investigated. It is discovered, that the forced-elastic state remains for all films up to 4.2 K of all strain rates - σfors
ISSN:2312-4334
2312-4539
DOI:10.26565/2312-4334-2020-4-18