Mathematical Modeling and Comparative Analysis of Deformation/Recovery Properties and Shrinkage of Aramid Textile Materials

Advances in Raw Material Industries for Sustainable Development Goals

“…The existence of several mechanisms of heat conduction leads to a slightly different system of equations describing the process of heat transfer (Pereborova et al, 2019b;Pereborova et al, 2018c;Pereborova et al, 2018d).…”

“…(Egorov et al, 2020). If the element is at the i -th place consists of a spring with stiffness Ei, and the viscos ity of the liquid where a dashpot is located η i , then the delay time of the i -th element is obtained by τ i ¼ E η i i and is a measure of the time required for the spring to strain to its equilibrium length in the presence of the viscous element braking forces (Pereborova et al, 2019b).…”

Systematic Analysis of the Deformational Properties of Polypropylene and Polyvinylidene Fluoride Surgical Materials

“…The initial modulus is 6.2 ± 3 GPa for PP thread and 2.6 ± 2 GPa for PVDF thread. The initial elastic modulus for PP thread is more than twice the corresponding modulus for PVDF thread, indicating that PP thread is more rigid than PVDF thread [13][14][15]. However, we note that the initial moduli for PP thread (6.2 GPa) and PVDF thread (2.6 GPa) are two orders of magnitude less than for the carbon-chain skeleton of the polymer molecules used to make these threads (200 GPa) [16][17][18][19].…”