This article is cited in 4 papers

Polymers

On the determination of the elastic modulus of ultraoriented high-strength film threads obtained by drawing of ultra-high-molecular-weight polyethylene xerogels

Yu. M. Boiko^a, V. A. Marikhin^a, O. A. Moskalyuk^b, L. P. Myasnikova<sup>a

a</sup> Ioffe Institute, St. Petersburg
^b St. Petersburg State University of Technology and Design

Abstract: The influence of the gauge length $l_0$ of a sample on the modulus $E$ of ultraoriented film filaments of ultra-high-molecular-weight polyethylene (UHMWPE) has been elucidated. The filament samples are obtained by a multistage orientation drawing on a contact heater with achieving extremely high draw ratios as large as $\lambda$ = 120. Precursors were xerogels prepared by the drying of 1.5% UHMWPE gel solutions in decalin. A noticeable gain in “methodical” quantity $E$ from 100 to 230 GPa at $l_0$ increasing from 10 to 80 mm with a damping behavior has been established. The $E(l_0)$ dependence is shown to be described via the empirical equation that allows the $E$ value to be predicted as a function of $l_0$. According to the prediction, a saturation of the true value $E$ with a yield to a plateau at $E$ = 242 GPa occurs at $l_0$ = 200 mm.

Received: 11.07.2018

DOI: 10.21883/FTT.2019.01.46911.207

 English version: Physics of the Solid State, 2019, 61:1, 44–47

Bibliographic databases:

•