Phase morphology of polypropylene-polyethylene terephthalate blend fibres

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Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
Inst Chemical Fibres
Technická Univerzita v Liberci
Technical university of Liberec, Czech Republic
Abstract
The article deals with the phase morphology of polypropylene-polyethylene terephthalate (PP/PET) blend fibres. The development of the morphology of the blend PP/PET fibres in the spinning and drawing processes, in dependence on molecular weight and the rheological properties of PET in the dispersed phase has been investigated. In experimental work both the length and diameter of PET deformed particles in PP matrix have been evaluated. In general, it was found that the length of the PET microfibrils in PP fibres after spinning and drawing is indirectly proportional to the molecular weight of the PET However in the drawing process the increment of the microfibril length of the dispersal phase is higher for PET with a higher molecular weight in comparison to the length after spinning. This means that the length of PET particles in the PP matrix is strongly influenced by spinning conditions for a lower molecular weight of PET and by the drawing conditions for a higher molecular weight of PET.
Description
Subject(s)
polypropylene-polyethylene terephthalate, blend fibres, phase morphology, spinning, drawing, microfibrils, molecular weight, rheological properties
Citation
ISSN
1230-3666
ISBN
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