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Polypropylene Microfibers with a Filler in the Nanostate

Mariya Tsebrenko, Victoriya Rezanova and Irina Tsebrenko
Affiliation: 
Kyiv National University of Technologies and Design 2, Nemirovich-Danchenko str., 01011 Kyiv, Ukraine mfibers@ukr.net
DOI: 
https://doi.org/10.23939/chcht04.03.253
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Keywords:

Abstract: 
The physico-chemical regularities of polypropylene microfibers obtained via processing polypropylene/copolyamide (PP/CPA) mixture melts filled with nanosilicas have been investigated. It has been shown that the chemical nature of silica functional groups affects the viscosity of PP/CPA melts. In spite of the solid state of additives the filling effect does not occur or reveals weakly. Silicas do not prevent the polypropylene fiber-forming in a copolyamide matrix but improve it. This is explained by the stabilizing action of silica additives on PP liquid streams. Nanofilled polypropylene microfibers with diameters 0.30–0.15 μm have been obtained.
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