Dope-Dyeing of Polyvinyl Alcohol (PVA) Nanofibres with Remazol Yellow FG

Fadil, Fatirah and Adli, Farah Atiqah and Nor Affandi, Nor Dalila and Harun, Ahmad Mukifza and Alam, Mohammad Khursheed (2020) Dope-Dyeing of Polyvinyl Alcohol (PVA) Nanofibres with Remazol Yellow FG. MDPI: Polymers, 12 (12). pp. 1-13. ISSN 2073-4360

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The lack of aesthetic properties of electrospun nanofibres in terms of colour appearance is the drive in this preliminary study. This research is conducted to study the dyeing behaviour and colorimetric properties of electrospun nanofibres blended with Remazol Yellow FG reactive dye using dope-dyeing method via electrospinning process. This paper reports the colorimetric properties of dyed poly vinyl alcohol (PVA) nanofibres within the range of 2.5 wt.% to 12.5 wt.% dye content. The electrospinning parameters were fixed at the electrospinning distance of 10 cm, constant feed rate of 0.5 mL/h and applied voltage of 15 kV. The resulting impregnated dye of 10 wt.% exhibits acceptable colour difference of dyed PVA nanofibres, with a mean fibre diameter of 177.1 ± 11.5 nm. The SEM micrographs show the effect of dye content on morphology and fibre diameter upon the increment of dye used. Further increase of dye content adversely affects the jet stability during the electrospinning, resulting in macroscopic dropping phenomenon. The presence of all prominent peaks of Remazol dye in the PVA nanofibers was supported with FTIR analysis. The addition of dye into the nanofibres has resulted in the enhancement of thermal stability of the PVA as demonstrated by TGA analysis

Item Type: Article
Uncontrolled Keywords: Dope-dyeing , Dye content , Electrospinning , Polyvinyl alcohol , Nanofibres morphology
Subjects: T Technology > T Technology (General) > T1-995 Technology (General) > T201-342 Patents. Trademarks
T Technology > TP Chemical technology > TP1-1185 Chemical technology > TP1080-1185 Polymers and polymer manufacture
Divisions: FACULTY > Faculty of Engineering
Depositing User: NORAINI LABUK -
Date Deposited: 12 Apr 2021 10:47
Last Modified: 21 Aug 2021 15:35

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