High-resolution 2D Raman mapping of mono- and bicomponent filament cross-sections

High-resolution 2D Raman mapping of mono- and bicomponent filament cross-sections

A high-resolution Raman mapping method has been developed in order to obtain 2D information about structural anisotropies (crystallinity, molecular alignment) in thin filament cross-sections (diameters between 27 μm and 79 μm). Cross-sections of melt-spun, hot-drawn poly (ethylene terephthalate) (PE...

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Veröffentlicht in:Polymer (Guilford) 2021-08, Vol.229, p.124011, Article 124011
Hauptverfasser: Perret, E., Braun, O., Sharma, K., Tritsch, S., Muff, R., Hufenus, R.
Format: Artikel
Sprache:eng
Schlagworte:
Cross-sections
Crystal structure
Crystallinity
Filaments
High resolution
Laser beams
Mapping
Melt spinning
PET
Polyamide resins
Polyethylene terephthalate
Process parameters
Radial gradients
Raman mapping
Raman spectra
Raman spectroscopy
Sheaths
Spatial discrimination
Spatial resolution
X-ray diffraction
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Zusammenfassung:A high-resolution Raman mapping method has been developed in order to obtain 2D information about structural anisotropies (crystallinity, molecular alignment) in thin filament cross-sections (diameters between 27 μm and 79 μm). Cross-sections of melt-spun, hot-drawn poly (ethylene terephthalate) (PET) filaments and bicomponent core-sheath PET-polyamide 6 (PA6) filaments have been scanned through a laser beam (spatial resolution 
ISSN:0032-3861
1873-2291
1873-2291
DOI:10.1016/j.polymer.2021.124011