The influence of fiber fineness on physical characteristics of staple polypropylene fibers spun at different pumping speeds

M. Zarrebini, M. R. Mahmoudi, M. A. El-Bakary, H. M. El-Dessouky, C. A. Lawrence

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Melt spinning and pump speed conditions are described for five samples of staple polypropylene PP fibers of different fineness. The influence of fiber fineness or denier on the physical characteristics of staple PP fibers spun at different pump speeds was studied. Optical anisotropy was measured using two-beam interference microscopy. Enthalpy and degree of crystallinity were measured using differential scanning calorimetry technique for studied fibers. The relation between the fiber diameter, crimp ratio, tenacity, and degree of orientation with the fiber denier are given. A selection of microinterferograms of fibers is given for illustration.
Original languageEnglish
Pages (from-to)2892-2897
Number of pages6
JournalJournal of Applied Polymer Science
Issue number5
Early online date26 Oct 2009
Publication statusPublished - 5 Mar 2010
Externally publishedYes


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