Obtaining of a PET-CaF2 hybrid multifilament: Non-isothermal crystallization studies

Poly(ethylene terephthalate) (PET) has been mixed with fluorite (CaF2) particles to obtain micro- and nano-composites aiming to obtain a hybrid multifilament. In first term, the use of two montanic waxes and an amide wax as dispersing agents towards the compatibilization of the inorganic and organic...

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Bibliographic Details
Published in:Polymer testing 2020-06, Vol.86, p.106449, Article 106449
Main Authors: Riba-Moliner, Marta, Mijas, Gabriela, Sánchez-Loredo, María Guadalupe, Cayuela, Diana
Format: Article
Language:English
Subjects:
CaF2 nanoparticles
Composites
Dispersing agent
Fluorite particles
Microparticles
Multifilament
Nanocomposites
PET
Poly (ethylene terephthalate)
Yarn
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Summary:Poly(ethylene terephthalate) (PET) has been mixed with fluorite (CaF2) particles to obtain micro- and nano-composites aiming to obtain a hybrid multifilament. In first term, the use of two montanic waxes and an amide wax as dispersing agents towards the compatibilization of the inorganic and organic components of the CaF2/PET composite were considered. To do this, non-isothermal crystallization studies by differential scanning calorimetry have been carried out. Moreover, the influence of the CaF2 particle size and concentration on the thermal properties of the system have been also studied by this technique. Finally, the extrapolation of the results has materialised as a novel PET/CaF2 hybrid multifilament. Thermal and mechanical properties and molecular weight of the multifilament have been as well evaluated. •Conditions of the production of multifilaments are usually more restrictive than other processes because a discontinuity in the extruded melt would mean a breakage of the resulting multifilament.•Crystallization behaviour of the polymer matrix after incorporation of fillers and their morphology and distribution in the polymer matrix are closely related to composite properties.•Fillers may act as a nucleating or anti-nucleating agents under certain conditions, affecting the crystallization behaviour of the material.•NCP/MAWMA multifilament nano-composite can be thermally processed as PET, which is promising and valuable from the industrial point of view.
ISSN:0142-9418
1873-2348
DOI:10.1016/j.polymertesting.2020.106449