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Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature

High crystallinity leads to low hydrophilicity of fabric made of (poly(ethylene terephthalate)) fibers (PET) causing problems in finishing, washing, and dyeing processes. To improve these properties, the surface of PET fibers is usually modified by hydrolysis. Alkaline hydrolysis is a conventional p...

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Autores principales: Čorak, Ivana, Tarbuk, Anita, Đorđević, Dragan, Višić, Ksenija, Botteri, Lea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876586/
https://www.ncbi.nlm.nih.gov/pubmed/35208070
http://dx.doi.org/10.3390/ma15041530
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author Čorak, Ivana
Tarbuk, Anita
Đorđević, Dragan
Višić, Ksenija
Botteri, Lea
author_facet Čorak, Ivana
Tarbuk, Anita
Đorđević, Dragan
Višić, Ksenija
Botteri, Lea
author_sort Čorak, Ivana
collection PubMed
description High crystallinity leads to low hydrophilicity of fabric made of (poly(ethylene terephthalate)) fibers (PET) causing problems in finishing, washing, and dyeing processes. To improve these properties, the surface of PET fibers is usually modified by hydrolysis. Alkaline hydrolysis is a conventional process usually performed at a temperature higher than 100 °C for more than 1 h. However, the use of strong alkali and high processing temperatures (>100 °C) can lead to fabric damage and a negative impact on the environment. Therefore, in this paper, the possibility of hydrolysis of the PET fibers in the fabric in a sustainable, energy-efficient process was researched. The influence of low temperature (60–100 °C) and an accelerator (a cationic surfactant HDTMAC) to PET alkaline hydrolysis was studied through weight loss, the loss in breaking force, and fiber morphology. The kinetics of PET dissolution in 1.5 mol cm(−3) NaOH at low temperature with and without the addition of HDTMAC was determined and the activation energy was calculated according to the theoretical model. It has been confirmed that PET hydrolysis can be carried out in 1.5 mol cm(−3) NaOH with the addition of HDTMAC as an accelerator at 80 °C for 10 min. This process is more economically and energetically acceptable than the conventional process, and is therefore more sustainable.
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spelling pubmed-88765862022-02-26 Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature Čorak, Ivana Tarbuk, Anita Đorđević, Dragan Višić, Ksenija Botteri, Lea Materials (Basel) Article High crystallinity leads to low hydrophilicity of fabric made of (poly(ethylene terephthalate)) fibers (PET) causing problems in finishing, washing, and dyeing processes. To improve these properties, the surface of PET fibers is usually modified by hydrolysis. Alkaline hydrolysis is a conventional process usually performed at a temperature higher than 100 °C for more than 1 h. However, the use of strong alkali and high processing temperatures (>100 °C) can lead to fabric damage and a negative impact on the environment. Therefore, in this paper, the possibility of hydrolysis of the PET fibers in the fabric in a sustainable, energy-efficient process was researched. The influence of low temperature (60–100 °C) and an accelerator (a cationic surfactant HDTMAC) to PET alkaline hydrolysis was studied through weight loss, the loss in breaking force, and fiber morphology. The kinetics of PET dissolution in 1.5 mol cm(−3) NaOH at low temperature with and without the addition of HDTMAC was determined and the activation energy was calculated according to the theoretical model. It has been confirmed that PET hydrolysis can be carried out in 1.5 mol cm(−3) NaOH with the addition of HDTMAC as an accelerator at 80 °C for 10 min. This process is more economically and energetically acceptable than the conventional process, and is therefore more sustainable. MDPI 2022-02-18 /pmc/articles/PMC8876586/ /pubmed/35208070 http://dx.doi.org/10.3390/ma15041530 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Čorak, Ivana
Tarbuk, Anita
Đorđević, Dragan
Višić, Ksenija
Botteri, Lea
Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title_full Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title_fullStr Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title_full_unstemmed Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title_short Sustainable Alkaline Hydrolysis of Polyester Fabric at Low Temperature
title_sort sustainable alkaline hydrolysis of polyester fabric at low temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876586/
https://www.ncbi.nlm.nih.gov/pubmed/35208070
http://dx.doi.org/10.3390/ma15041530
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AT visicksenija sustainablealkalinehydrolysisofpolyesterfabricatlowtemperature
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