Differential scanning calorimetry/small-angle X-ray scattering analysis of ultraviolet sensible polypropylene filaments

Martina Vikova*, Shinichi Sakurai, Aravin Prince Periyasamy, Hidekazu Yasunaga, Miroslava Pechočiaková, Anna Ujhelyiová

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In this work, ultraviolet (UV) sensible metallocene isotactic polypropylene (miPP) filaments were produced with different drawing ratios and various concentrations of photochromic pigment. The effects of pigment concentration and drawing ratio on the chromatic properties and the structural modification for the miPP filaments were studied extensively by differential scanning calorimetry (DSC) and small- and wide-angle X-ray scattering (SAXS/WAXS) measurements. The change in melting temperature and the polymeric structures, such as lamellar thickness, long period and degree of crystallinity of miPP with the addition of a UV sensible pigment into miPP and the drawing process, were evaluated. The results show that the pigment concentration and the drawing ratio influence the inner structure of miPP filaments. Finally, our investigation shows that SAXS and also WAXS are appropriate to determine the lamellar thickness and the degree of crystallinity established by the DSC approach. This work attempts to correlate the results of lamellar thickness, the degree of crystallinity and the higher-order structure of the polymer acquired by DSC as well as X-ray diffraction (XRD) techniques in order to develop an appropriate approach to find the influence of pigment concentration and drawing ratio on miPP filaments.
Original languageEnglish
Number of pages12
JournalTextile Research Journal
Early online date18 Oct 2021
DOIs
Publication statusE-pub ahead of print - 18 Oct 2021
MoE publication typeA1 Journal article-refereed

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