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Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water
Developing degradable bio-plastics has been considered feasible to lessen marine plastic pollution. However, unanimity is still elusive regarding the actual degradability of bio-plastics such as polylactide (PLA) and poly(hydroxybutyrate) (PHB). Thus, herein, we studied the degradability of fabrics...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823644/ https://www.ncbi.nlm.nih.gov/pubmed/36616431 http://dx.doi.org/10.3390/polym15010082 |
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author | Bao, Qi Zhang, Ziheng Luo, Heng Tao, Xiaoming |
author_facet | Bao, Qi Zhang, Ziheng Luo, Heng Tao, Xiaoming |
author_sort | Bao, Qi |
collection | PubMed |
description | Developing degradable bio-plastics has been considered feasible to lessen marine plastic pollution. However, unanimity is still elusive regarding the actual degradability of bio-plastics such as polylactide (PLA) and poly(hydroxybutyrate) (PHB). Thus, herein, we studied the degradability of fabrics made from PLA/PHB blends in marine seawater. The dry-mass percentage of the PLA/PHB fabrics decreased progressively from 100% to 85~90% after eight weeks of immersion. Two environmental aging parameters (UV irradiation and aerating) were also confirmed to accelerate the abiotic hydrolysis of the incubated fabrics. The variation in the molecular structure of the PLA/PHB polymers after the degradation process was investigated by electrospray ionization mass spectrometry (ESI-MS). However, the hydrolysis degradability of bulky PLA/PHB blends, which were used to produce such PLA/PHB fabrics, was negligible under identical conditions. There was no mass loss in these solid PLA/PHB plastics except for a decrease in their tensile strength. Finally, a deep learning artificial neural network model was proposed to model and predict the nonlinear abiotic hydrolysis behavior of PLA/PHB fabrics. The degradability of PLA/PHB fabrics in marine water under the synergistic destructive effects of seawater, UV, and dissolved oxygen provides a pathway for more sustainable textile fibers and apparel products. |
format | Online Article Text |
id | pubmed-9823644 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98236442023-01-08 Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water Bao, Qi Zhang, Ziheng Luo, Heng Tao, Xiaoming Polymers (Basel) Article Developing degradable bio-plastics has been considered feasible to lessen marine plastic pollution. However, unanimity is still elusive regarding the actual degradability of bio-plastics such as polylactide (PLA) and poly(hydroxybutyrate) (PHB). Thus, herein, we studied the degradability of fabrics made from PLA/PHB blends in marine seawater. The dry-mass percentage of the PLA/PHB fabrics decreased progressively from 100% to 85~90% after eight weeks of immersion. Two environmental aging parameters (UV irradiation and aerating) were also confirmed to accelerate the abiotic hydrolysis of the incubated fabrics. The variation in the molecular structure of the PLA/PHB polymers after the degradation process was investigated by electrospray ionization mass spectrometry (ESI-MS). However, the hydrolysis degradability of bulky PLA/PHB blends, which were used to produce such PLA/PHB fabrics, was negligible under identical conditions. There was no mass loss in these solid PLA/PHB plastics except for a decrease in their tensile strength. Finally, a deep learning artificial neural network model was proposed to model and predict the nonlinear abiotic hydrolysis behavior of PLA/PHB fabrics. The degradability of PLA/PHB fabrics in marine water under the synergistic destructive effects of seawater, UV, and dissolved oxygen provides a pathway for more sustainable textile fibers and apparel products. MDPI 2022-12-25 /pmc/articles/PMC9823644/ /pubmed/36616431 http://dx.doi.org/10.3390/polym15010082 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 Bao, Qi Zhang, Ziheng Luo, Heng Tao, Xiaoming Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title | Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title_full | Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title_fullStr | Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title_full_unstemmed | Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title_short | Evaluating and Modeling the Degradation of PLA/PHB Fabrics in Marine Water |
title_sort | evaluating and modeling the degradation of pla/phb fabrics in marine water |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823644/ https://www.ncbi.nlm.nih.gov/pubmed/36616431 http://dx.doi.org/10.3390/polym15010082 |
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