Abstract
The physicochemical characteristics of production of ultrathin polypropylene fibres from polymer blend melts by use of specific fibre-formation are examined. The determining role of thermodynamic compatibility in fibre formation of one polymer in another is demonstrated and a method is proposed for improving it by adding special substances — compatibilizers — to the binary mixture. The copolymer of ethylene and vinyl acetate and sodium oleate are recommended as compatibilizers for PP/CPA blends. The types of specific reaction between the copolyamide macromolecules and the additives were established by IR spectroscopy. These include dipole-dipole and ion-dipole bonds that alter the rheological properties and improve the spinnability of the blend melts. Specific fibre formation for a PP/CPA ratio corresponding to the phase shift region appeared for the first time due to compatibilization. Complex fibres are obtained from polypropylene microfibres in spinning through one opening.
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Tsebrenko, M.V., Rezanova, N.M. & Tsebrenko, I.A. Ultrathin Polypropylene Fibres from Polymer Blend Melts. Fibre Chemistry 34, 263–270 (2002). https://doi.org/10.1023/A:1021045015324
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DOI: https://doi.org/10.1023/A:1021045015324