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Modification of polypropylene fibrous materials with ultradispersed polytetrafluoroethylene |
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| Authors: | N. P. Prorokova S. Yu. Vavilova V. M. Buznik A. E. Zavadskii |
| Affiliation: | 1. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Akademicheskaya ul. 1, Ivanovo, 153045, Russia 2. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskii pr. 49, Moscow, 119991, Russia 3. Ivanovo State University of Chemical Technology, pr. Fridrikha Engel’sa 7, Ivanovo, 153000, Russia |
| Abstract: | The effects of narrowly and widely dispersed fractions of ultradispersed polytetrafluoroethylene on the structures of melt-spun polypropylene fibrous materials and the ultimate tensile half-cycle characteristics of polypropylene filaments and nonwoven materials have been studied via X-ray diffraction analysis, optical microscopy, and differential scanning calorimetry. It has been shown that the addition of 1–2% ultradispersed polytetrafluoroethylene, which exists as an individual phase in polypropylene, allows a significant increase in the relative tensile stress of the filament and its elastic modulus. |
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