Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences, Tomsk 634055, Russia
kashlatch.cat@yandex.ru
收稿:2022-05-21,
修回:2022-10-13,
录用:2022-10-17,
网络首发:2022-12-12,
纸质出版:2023-03-01
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Manzhai, V. N.; Fufaeva, M. S.; Kashlach, E. S. Relaxation of mechanical stress in poly(vinyl alcohol) cryogels of different compositions. Chinese J. Polym. Sci. 2023, 41, 442–447
Vladimir N. Manzhai, Maria S. Fufaeva, Ekaterina S. Kashlach. Relaxation of Mechanical Stress in Poly(vinyl alcohol) Cryogels of Different Compositions[J]. Chinese Journal of Polymer Science, 2023, 41(3): 442-447.
Manzhai, V. N.; Fufaeva, M. S.; Kashlach, E. S. Relaxation of mechanical stress in poly(vinyl alcohol) cryogels of different compositions. Chinese J. Polym. Sci. 2023, 41, 442–447 DOI: 10.1007/s10118-022-2889-8.
Vladimir N. Manzhai, Maria S. Fufaeva, Ekaterina S. Kashlach. Relaxation of Mechanical Stress in Poly(vinyl alcohol) Cryogels of Different Compositions[J]. Chinese Journal of Polymer Science, 2023, 41(3): 442-447. DOI: 10.1007/s10118-022-2889-8.
Macromolecular coils in the externally influenced cryogels are transferred from the stress state to the equilibrium state to acquire the shape of a ball over time. Then the relaxation time is the characteristic time for the system to return to the equilibrium state.
The study presents the experimental results of measurements of the relaxation time of cryogels formed from various colloid-dispersed systems based on a poly(vinyl alcohol) aqueous solution. It is shown that the value of relaxation time
which characterizes the relationship between the viscosity and elasticity of real bodies
describes the rheological properties of materials more objectively than the traditional assessment of their physical and mechanical characteristics only by the elasticity modulus of the samples.
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