THERMAL SCIENCE

International Scientific Journal

Shi-Hui Gao

,

Yi-Tong Han

,

Fei-Xia Li

,

Jun Yan

,

Yan-Hua Lu

,

Huan-Da Zheng

STRUCTURE AND PROPERTIES OF POLYETHYLENE TEREPHTHALATE TREATED BY SUPERCRITICAL CO2

ABSTRACT
Structure and properties of polyethylene terephthalate were characterized by SAM, Fourier transform infrared spectrometry, X-ray diffraction, and thermal analysis to evaluate the effect of supercritical CO2 on the structural behavior. The dynamic shrinking behavior of polyethylene terephthalate was analyzed using the Kelvin-Voigt model. The results indicated that uneven and significantly different surface of the polyethylene terephthalate fiber was displayed since the spinning oil and other additives added in spinning process were rinsed in super-critical CO2. The slight shifts for the characteristic bands of polyethylene terephthalate in Fourier transform infrared spectrometry were observed due to some re-arrangements and recrystallizations of the molecule chains after supercritical CO2 treatment. Simultaneously, the crystallinities and the fastest thermal decomposition temperatures of polyethylene terephthalate were improved slightly from 80°C to 120°C in supercritical CO2. Furthermore, the shrinkage of the treated polyethylene terephthalate samples was increased gradually from 2.73% to 3.35% with the temperature raising.
KEYWORDS
supercritical CO2, polyethylene terephthalate, treatment, shrinking dynamics equation, structure and properties
PAPER SUBMITTED: 2017-02-20
PAPER REVISED: 2017-03-06
PAPER ACCEPTED: 2017-09-20
PUBLISHED ONLINE: 2018-09-09
DOI REFERENCE: https://doi.org/10.2298/TSCI1804645G
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 4, PAGES [1645 - 1650]
REFERENCES
  1. Bach, E., et al., Past, Present and Future of Supercritical Fluid Dyeing Technology - An Overview, Re-view of Progress in Coloration, 32 (2002), 32, pp. 88-102
  2. Zheng, H., et al., An Industrial Scale Multiple Supercritical Carbon Dioxide Apparatus and Its Eco-friendly Dyeing Production, Journal of CO2 Utilization, 16 (2016), Dec., pp. 272-281
  3. Zheng, H., et al., Dyeing of Meta-Aramid Fibers with Disperse Dyes in Supercritical Carbon Dioxide, Fibers and Polymers, 15 (2014), 8, pp. 1627-1634
  4. Zhang, J., et al., Green Dyeing of Cotton Fabrics by Supercritical Carbon Dioxide, Thermal Science, 19 (2015), 4, pp. 1285-1288
  5. Zheng, H., et al., Effect of Treatment Pressure on Structures and Properties of PMIA Fiber in Supercriti-cal Carbon Dioxide Fluid, Journal of Applied Polymer Science, 132 (2015), 14, 41756
  6. Zheng, H., et al., An Ecofriendly Dyeing of Wool with Supercritical Carbon Dioxide Fluid, Journal of Cleaner Production, 143 (2017), Feb., pp. 269-277
  7. Zheng, H., et al., CO2 Utilization for the Dyeing of Yak Hair: Fracture Behavior in Supercritical State, Journal of CO2 Utilization, 18 (2017), Mar., pp. 117-124
  8. Kraan, M., et al., Equilibrium Study on the Disperse Dyeing of Polyester Textile in Supercritical Carbon Dioxide, Textile Research Journal, 77 (2007), 8, pp. 550-558
  9. Zheng, H., et al., Investigations on the Effect of Carriers on Meta-Aramid Fabric Dyeing Properties in Supercritical Carbon Dioxide, RSC Advances, 7 (2017), 6, pp. 3470-3479
  10. Zhang, J., et al., Dyeing Behavior Prediction of Cotton Fabrics in Supercritical CO2, Thermal Science, 21 (2017), 4, pp. 1739-1744
  11. Zheng, H., et al., Mass Transfer of Disperse Red 153 and Its Crude Dye in Supercritical Carbon Dioxide Fluid, Thermal Science, 21 (2017), 4, pp. 1745-1749
  12. Wang, J., et al., Study on Shrinkage Kinetics of Poly (Ethylene Terephthalate) POY, Journal of Textile Research, 22 (2001), 5, pp. 282-284
PDF VERSION [DOWNLOAD]
Structure and properties of polyethylene terephthalate treated by supercritical CO2

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence