Marko Bek, Joris Betjes, Igor Emri, Nikola Holeček

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Mechanical material properties of polymers may change significantly when they are exposed to high pressures and/or temperatures. Within this paper the effect of hydrostatic pressure on shear relaxation modulus of three thermoplastic polyurethanes is presented. Results show that chemically identical materials may have significantly different hydrostatic pressure sensitivity. At pressure of 300 MPa, mechanical properties of two materials change “only” for a factor of 10, while for the third material, mechanical properties change 109 times!

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ISSN   0354-804X (Print)

ISSN   2406-0534 (Online)