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Centrifugally Spun Recycled PET: Processing and Characterization

Centrifugal spinning, which is a high-productivity fiber fabrication technique, was used to produce a value-added product from recycled poly(ethylene terephthalate) (rPET). In the present study, rPET fibers, with fiber diameters ranging from submicron to micrometer in scale, were fabricated by spinn...

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Autores principales: Vo, Phu Phong, Doan, Hoan Ngoc, Kinashi, Kenji, Sakai, Wataru, Tsutsumi, Naoto, Huynh, Dai Phu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404124/
https://www.ncbi.nlm.nih.gov/pubmed/30966714
http://dx.doi.org/10.3390/polym10060680
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author Vo, Phu Phong
Doan, Hoan Ngoc
Kinashi, Kenji
Sakai, Wataru
Tsutsumi, Naoto
Huynh, Dai Phu
author_facet Vo, Phu Phong
Doan, Hoan Ngoc
Kinashi, Kenji
Sakai, Wataru
Tsutsumi, Naoto
Huynh, Dai Phu
author_sort Vo, Phu Phong
collection PubMed
description Centrifugal spinning, which is a high-productivity fiber fabrication technique, was used to produce a value-added product from recycled poly(ethylene terephthalate) (rPET). In the present study, rPET fibers, with fiber diameters ranging from submicron to micrometer in scale, were fabricated by spinning a solution of rPET in a mixture of dichloromethane and trifluoroacetic acid. The influence of the polymer solution concentration (the viscosity), the rotational speed of the spinneret, and the inner diameter of the needles on the formation and morphology and mechanical properties of the fibers were examined through scanning electron microscopy and using a tensile testing machine. The thermal behaviors of fibrous mats with various average diameters were also investigated through differential scanning calorimetry. The smoothest and smallest fibers, with an average diameter of 619 nm, were generated using an rPET solution of 10 wt % under a rotation speed of 15,000 rpm using needles having an inner diameter of 160 μm. The fibrous mats have an average tensile strength and modulus of 4.3 MPa and 34.4 MPa, respectively. The productivity and the mechanical properties indicate that centrifugal spinning is an effective technique to fabricate high-value product from rPET.
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spelling pubmed-64041242019-04-02 Centrifugally Spun Recycled PET: Processing and Characterization Vo, Phu Phong Doan, Hoan Ngoc Kinashi, Kenji Sakai, Wataru Tsutsumi, Naoto Huynh, Dai Phu Polymers (Basel) Article Centrifugal spinning, which is a high-productivity fiber fabrication technique, was used to produce a value-added product from recycled poly(ethylene terephthalate) (rPET). In the present study, rPET fibers, with fiber diameters ranging from submicron to micrometer in scale, were fabricated by spinning a solution of rPET in a mixture of dichloromethane and trifluoroacetic acid. The influence of the polymer solution concentration (the viscosity), the rotational speed of the spinneret, and the inner diameter of the needles on the formation and morphology and mechanical properties of the fibers were examined through scanning electron microscopy and using a tensile testing machine. The thermal behaviors of fibrous mats with various average diameters were also investigated through differential scanning calorimetry. The smoothest and smallest fibers, with an average diameter of 619 nm, were generated using an rPET solution of 10 wt % under a rotation speed of 15,000 rpm using needles having an inner diameter of 160 μm. The fibrous mats have an average tensile strength and modulus of 4.3 MPa and 34.4 MPa, respectively. The productivity and the mechanical properties indicate that centrifugal spinning is an effective technique to fabricate high-value product from rPET. MDPI 2018-06-19 /pmc/articles/PMC6404124/ /pubmed/30966714 http://dx.doi.org/10.3390/polym10060680 Text en © 2018 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Vo, Phu Phong
Doan, Hoan Ngoc
Kinashi, Kenji
Sakai, Wataru
Tsutsumi, Naoto
Huynh, Dai Phu
Centrifugally Spun Recycled PET: Processing and Characterization
title Centrifugally Spun Recycled PET: Processing and Characterization
title_full Centrifugally Spun Recycled PET: Processing and Characterization
title_fullStr Centrifugally Spun Recycled PET: Processing and Characterization
title_full_unstemmed Centrifugally Spun Recycled PET: Processing and Characterization
title_short Centrifugally Spun Recycled PET: Processing and Characterization
title_sort centrifugally spun recycled pet: processing and characterization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404124/
https://www.ncbi.nlm.nih.gov/pubmed/30966714
http://dx.doi.org/10.3390/polym10060680
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