Effect of the degree of extension on the phase composition and tendency toward mesomorphism of UHMWPE in gel-spun oriented fibers |
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| Authors: | E M Antipov Yu A Lebedev A V Rebrov S A Kuptsov P M Pakhomov V P Galitsin |
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| Institution: | (1) Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991, Russia;(2) Moscow State Pedagogical University, Malaya Pirogovskaya ul. 29, Moscow, 119992, Russia;(3) Tver State University, Sadovyi per. 35, Tver, 170002, Russia;(4) Research Institute of Synthetic Fibers, Moskovskoe sh., Tver, 170032, Russia |
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| Abstract: | Structural transformations of UHMWPE-based fibers prepared by orientational drawing have been studied by the combination of SAXS and WAXS methods, photo- and diffractometry, and isometric DSC measurements in a wide temperature range. A sequence of phase transformations and other structural changes has been followed and identified during the orientational deformation of the fibers in a wide range of draw ratios from 1 to 85 within the temperature interval from room temperature to the melting temperature of the polymer. |
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