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Structure and properties of poly(ethylene terephthalate) fiber webs prepared via laser-electrospinning and subsequent annealing processes

Tokuda, Tomoki, Tsuruda, Ryo, Hara, Takuya, Kobayashi, Haruki, Tanaka, Katsufumi, Takarada, Wataru, Kikutani, Takeshi, Hinestroza, Juan P, Razal, Joselito M and Takasaki, Midori 2020, Structure and properties of poly(ethylene terephthalate) fiber webs prepared via laser-electrospinning and subsequent annealing processes, Materials, vol. 13, no. 24, pp. 1-12, doi: 10.3390/ma13245783.

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Title Structure and properties of poly(ethylene terephthalate) fiber webs prepared via laser-electrospinning and subsequent annealing processes
Author(s) Tokuda, Tomoki
Tsuruda, Ryo
Hara, Takuya
Kobayashi, Haruki
Tanaka, Katsufumi
Takarada, Wataru
Kikutani, Takeshi
Hinestroza, Juan P
Razal, Joselito MORCID iD for Razal, Joselito M orcid.org/0000-0002-9758-3702
Takasaki, Midori
Journal name Materials
Volume number 13
Issue number 24
Article ID 5783
Start page 1
End page 12
Total pages 12
Publisher MDPI AG
Place of publication Basel, Switzerland
Publication date 2020-12-18
ISSN 1996-1944
1996-1944
Keyword(s) poly(ethylene terephthalate)
melt-electrospinning
ultra-fine fibers
birefringence
crystallinity
Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Physics, Applied
Physics, Condensed Matter
Chemistry
Materials Science
Physics
Summary Melt-electrospinning is an eco-friendly method for producing ultra-fine fibers without using any solvent. We prepared webs of poly(ethylene terephthalate) (PET) through melt-electrospinning using CO2 laser irradiation for heating. The PET webs comprised ultra-fine fibers of uniform diameter (average fiber diameter = 1.66 μm, coefficient of variation = 19%). The co-existence of fibers with high and low molecular orientation was confirmed through birefringence measurements. Although the level of high orientation corresponded to that of commercial highly oriented yarn, crystalline diffraction was not observed in the wide-angle X-ray diffraction (WAXD) analysis of the webs. The crystallinity of the webs was estimated using differential scanning calorimetry (DSC). The fibers with higher birefringence did not exhibit any cold crystallization peak. After annealing the web at 116 °C for 5 min, a further increase in the birefringence of the fibers with higher orientation was observed. The WAXD results revealed that the annealed webs showed crystalline diffraction peaks with the orientation of the c-axis along the fiber axis. In summary, the formation of fibers with a unique non-crystalline structure with extremely high orientation was confirmed.
Language eng
DOI 10.3390/ma13245783
Indigenous content off
Field of Research 03 Chemical Sciences
09 Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30146415

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Collection
GTP Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.