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Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae

The seaweed Rugulopteryx okamurae, from the Pacific Ocean, is considered an invasive species in the Mediterranean Sea. In this work, the use of this seaweed is proposed for the development of bio-based plastic materials (bioplastics) as a possible solution to the pollution produced by the plastic in...

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Autores principales: Santana, Ismael, Félix, Manuel, Guerrero, Antonio, Bengoechea, Carlos
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8779417/
https://www.ncbi.nlm.nih.gov/pubmed/35054757
http://dx.doi.org/10.3390/polym14020355
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author Santana, Ismael
Félix, Manuel
Guerrero, Antonio
Bengoechea, Carlos
author_facet Santana, Ismael
Félix, Manuel
Guerrero, Antonio
Bengoechea, Carlos
author_sort Santana, Ismael
collection PubMed
description The seaweed Rugulopteryx okamurae, from the Pacific Ocean, is considered an invasive species in the Mediterranean Sea. In this work, the use of this seaweed is proposed for the development of bio-based plastic materials (bioplastics) as a possible solution to the pollution produced by the plastic industry. The raw seaweed Rugulopteryx okamurae was firstly blended with glycerol (ratios: 50/50, 60/40 and 70/30), and subsequently, they were processed by injection molding at a mold temperature of 90, 120 and 150 °C. The rheological properties (frequency sweep tests and temperature ramp tests) were obtained for blends before and after processing by injection molding. The functional properties of the bioplastics were determined by the water uptake capacity (WUC) values and further scanning electron microscopy (SEM). The results obtained indicated that E’ was always greater than E”, which implies a predominantly elastic behavior. The 70/30 ratio presents higher values for both the viscoelastic moduli and tensile properties than the rest of the systems (186.53 ± 22.80 MPa and 2.61 ± 0.51 MPa, respectively). The WUC decreased with the increase in seaweed in the mixture, ranging from 262% for the 50/50 ratio to 181% for the 70/30 ratio. When carrying out the study on molded bioplastic 70/30 at different temperatures, the seaweed content did not exert a remarkable influence on the final properties of the bioplastics obtained. Thus, this invasive species could be used as raw material for the manufacture of environmentally friendly materials processed by injection molding, with several applications such as food packaging, control–release, etc.
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spelling pubmed-87794172022-01-22 Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae Santana, Ismael Félix, Manuel Guerrero, Antonio Bengoechea, Carlos Polymers (Basel) Article The seaweed Rugulopteryx okamurae, from the Pacific Ocean, is considered an invasive species in the Mediterranean Sea. In this work, the use of this seaweed is proposed for the development of bio-based plastic materials (bioplastics) as a possible solution to the pollution produced by the plastic industry. The raw seaweed Rugulopteryx okamurae was firstly blended with glycerol (ratios: 50/50, 60/40 and 70/30), and subsequently, they were processed by injection molding at a mold temperature of 90, 120 and 150 °C. The rheological properties (frequency sweep tests and temperature ramp tests) were obtained for blends before and after processing by injection molding. The functional properties of the bioplastics were determined by the water uptake capacity (WUC) values and further scanning electron microscopy (SEM). The results obtained indicated that E’ was always greater than E”, which implies a predominantly elastic behavior. The 70/30 ratio presents higher values for both the viscoelastic moduli and tensile properties than the rest of the systems (186.53 ± 22.80 MPa and 2.61 ± 0.51 MPa, respectively). The WUC decreased with the increase in seaweed in the mixture, ranging from 262% for the 50/50 ratio to 181% for the 70/30 ratio. When carrying out the study on molded bioplastic 70/30 at different temperatures, the seaweed content did not exert a remarkable influence on the final properties of the bioplastics obtained. Thus, this invasive species could be used as raw material for the manufacture of environmentally friendly materials processed by injection molding, with several applications such as food packaging, control–release, etc. MDPI 2022-01-17 /pmc/articles/PMC8779417/ /pubmed/35054757 http://dx.doi.org/10.3390/polym14020355 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
Santana, Ismael
Félix, Manuel
Guerrero, Antonio
Bengoechea, Carlos
Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title_full Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title_fullStr Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title_full_unstemmed Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title_short Processing and Characterization of Bioplastics from the Invasive Seaweed Rugulopteryx okamurae
title_sort processing and characterization of bioplastics from the invasive seaweed rugulopteryx okamurae
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8779417/
https://www.ncbi.nlm.nih.gov/pubmed/35054757
http://dx.doi.org/10.3390/polym14020355
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