Effect of Organoclay on the Rheology, Morphology, Thermal and Mechanical Properties of Nanocomposite Fibers Based on Polypropylene/Poly(Trimethylene Terephthalate)/Organoclay

Modification of the rheological and thermal properties of polypropylene (PP) was accomplished through the in-situ generation of PP/poly(trimethylene terephthalate) (PTT) nanocomposites fibrils containing organoclay via a melt spinning process. The development of the fibrillar structures in the fiber...

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Bibliographic Details
Published in:Journal of macromolecular science. Physics 2021, Vol.60 (6), p.435-459
Main Authors: Zargar, M. R. H., Ghaffarian, A., Ebrahimzade, A., Shoushtari, A. M.
Format: Article
Language:English
Subjects:
Calorimetry
Differential scanning calorimetry
Electron microscopy
Fibers
Fibrils
Hot drawing
Mechanical properties
Melt spinning
Microscopy
Morphology
nano-composite fiber
Nanocomposites
organoclay
poly(trimethylene terephthalate)
Polypropylene
Rheological properties
Rheology
Scanning electron microscopy
Small angle X ray scattering
Terephthalate
Thermal properties
Thermodynamic properties
Transmission electron microscopy
X-ray diffraction
X-ray scattering
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Summary:Modification of the rheological and thermal properties of polypropylene (PP) was accomplished through the in-situ generation of PP/poly(trimethylene terephthalate) (PTT) nanocomposites fibrils containing organoclay via a melt spinning process. The development of the fibrillar structures in the fibers during the melt spinning and a subsequent hot drawing process was confirmed by scanning electron microscopy; the lowest mean diameter of the nano-fibrils was 74 nm for the hot drawn nanocomposite fibers consisting of 10 wt.% of PTT and 1 wt.% organoclay in the PP. The results of wide-angle X-ray diffraction and differential scanning calorimetry indicated that the presence of the 10 wt.% of PTT and 1 wt.% organoclay in the nanocomposite fibers led to an approximately 16% increase in the crystallinity of the PP, compared to pure PP fibers. The distribution of the organoclay in the nanocomposites was investigated using transmission electron microscopy and small-angle X-ray scattering.
ISSN:0022-2348
1525-609X
DOI:10.1080/00222348.2020.1858568