Properties of recycled and virgin poly(ethylene terephthalate) blend fibers
Abstract
Abstract Material from recycled poly(ethylene terephthalate) (PET) chips obtained from used water bottles was extruded with virgin fiber‐grade PET chips in blends of 20, 40, and 70 wt %. Filament fibers from the recycled/virgin PET blends were spun using a melt spinning process and drawn by a thermal drawing process to improve their mechanical properties. As the virgin PET chips were compounded with recycled PET chips, the thermal degradation temperature ( T d ) and the melting temperature ( T m ) were increased, and the crystallization temperature ( T c ) and crystallization rate were decreased. This means that virgin PET has a better thermal stability but a lower crystallization rate than recycled PET. The double melting behavior observed in the case of the drawn fibers may have been a consequence of larger crystallites or areas of crystallites being formed during the thermal drawing process. The birefringence and mechanical properties, such as tensile strength and tensile modulus, increased and elongation at break decreased for the drawn fibers, and this was attributed to the orientation induced during crystallization. The effect of the virgin PET content in the blends on mechanical properties was investigated; 30/70 wt % recycled/virgin blended fibers showed comparable mechanical properties to virgin PET fibers. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
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Filament fibers produced from a blend of recycled PET (sourced from used water bottles) and virgin PET demonstrated mechanical properties equivalent to those of fibers made entirely from virgin polyester.
“In the work of Lee et al. [64], filament fibers produced from a blend of recycled PET (sourced from used water bottles) and virgin PET demonstrated mechanical properties equivalent to those of fibers made entirely from virgin polyester.”
From Transforming Plastic Waste into Value: A Review of Management Strategies and Innovative Applications in Sustainable Construction (2025) · cites this paper as [64]
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- Authors
- Lee, J. H., Lim, K. S., Hahm, W. G., & Kim, S. H.
- Affiliations
- Hanyang University (KR)
- Korea Institute of Industrial Technology (KR)
- Corresponding author
- Kim, Seong Hun
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2012-09-17
- Volume
- 128
- Issue
- 2
- Pages
- 1250-1256
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2057416100
- Cited by
- 97
- References
- 18
- Citations by year
- 2026: 4 · 2025: 5 · 2024: 11 · 2023: 8 · 2022: 11 · 2021: 14 · 2020: 9 · 2019: 12 · 2018: 7 · 2017: 4 · 2016: 1 · 2015: 1 · 2014: 10
- FWCI
- 2.77
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Polymer Science (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Environmental Science › Waste Management and Disposal › Waste Management and Recycling
- Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
- Keywords
- recycled PET, melt spinning, thermal drawing, crystallization behavior, thermal stability, birefringence, tensile properties, fiber orientation
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