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Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch

Starch extracted from pineapple stem waste underwent an environmentally friendly modification process characterized by low-energy consumption. This process resulted in the creation of dialdehyde pineapple stem starch featuring varying aldehyde contents ranging from 10% to 90%. Leveraging these diald...

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Autores principales: Tessanan, Wasan, Phinyocheep, Pranee, Amornsakchai, Taweechai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536683/
https://www.ncbi.nlm.nih.gov/pubmed/37765686
http://dx.doi.org/10.3390/polym15183832
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author Tessanan, Wasan
Phinyocheep, Pranee
Amornsakchai, Taweechai
author_facet Tessanan, Wasan
Phinyocheep, Pranee
Amornsakchai, Taweechai
author_sort Tessanan, Wasan
collection PubMed
description Starch extracted from pineapple stem waste underwent an environmentally friendly modification process characterized by low-energy consumption. This process resulted in the creation of dialdehyde pineapple stem starch featuring varying aldehyde contents ranging from 10% to 90%. Leveraging these dialdehyde starches, thermosetting plastics were meticulously developed by incorporating glycerol as a plasticizer. Concurrently, unmodified pineapple stem starch was employed as a control to produce thermoplastic material under identical conditions. The objective of streamlining the processing steps was pursued by adopting a direct hot compression molding technique. This enabled the transformation of starch powders into plastic sheets without the need for water-based gelatinization. Consequently, the dialdehyde starch-based thermosetting plastics exhibited exceptional mechanical properties, boasting a modulus within the range of 1862 MPa to 2000 MPa and a strength of 15 MPa to 42 MPa. Notably, their stretchability remained relatively modest, spanning from 0.8% to 2.4%. Comparatively, these properties significantly outperformed the thermoplastic counterpart derived from unmodified starch. Tailoring the mechanical performance of the thermosetting plastics was achieved by manipulating the glycerol content, ranging from 30% to 50%. Phase morphologies of the thermoset starch unveiled a uniformly distributed microstructure without any observable starch particles. This stood in contrast to the heterogeneous structure exhibited by the thermoplastic derived from unmodified starch. X-ray diffraction patterns indicated the absence of a crystalline structure within the thermosets, likely attributed to the establishment of a crosslinked structure. The resultant network formation in the thermosets directly correlated with enhanced water resistance. Remarkably, the thermosetting starch originating from pineapple stem starch demonstrated continued biodegradability following a soil burial test, albeit at a notably slower rate when compared to its thermoplastic counterpart. These findings hold the potential to pave the way for the utilization of starch-based products, thereby replacing non-biodegradable petroleum-based materials and contributing to the creation of more enduring and sustainable commodities.
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spelling pubmed-105366832023-09-29 Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch Tessanan, Wasan Phinyocheep, Pranee Amornsakchai, Taweechai Polymers (Basel) Article Starch extracted from pineapple stem waste underwent an environmentally friendly modification process characterized by low-energy consumption. This process resulted in the creation of dialdehyde pineapple stem starch featuring varying aldehyde contents ranging from 10% to 90%. Leveraging these dialdehyde starches, thermosetting plastics were meticulously developed by incorporating glycerol as a plasticizer. Concurrently, unmodified pineapple stem starch was employed as a control to produce thermoplastic material under identical conditions. The objective of streamlining the processing steps was pursued by adopting a direct hot compression molding technique. This enabled the transformation of starch powders into plastic sheets without the need for water-based gelatinization. Consequently, the dialdehyde starch-based thermosetting plastics exhibited exceptional mechanical properties, boasting a modulus within the range of 1862 MPa to 2000 MPa and a strength of 15 MPa to 42 MPa. Notably, their stretchability remained relatively modest, spanning from 0.8% to 2.4%. Comparatively, these properties significantly outperformed the thermoplastic counterpart derived from unmodified starch. Tailoring the mechanical performance of the thermosetting plastics was achieved by manipulating the glycerol content, ranging from 30% to 50%. Phase morphologies of the thermoset starch unveiled a uniformly distributed microstructure without any observable starch particles. This stood in contrast to the heterogeneous structure exhibited by the thermoplastic derived from unmodified starch. X-ray diffraction patterns indicated the absence of a crystalline structure within the thermosets, likely attributed to the establishment of a crosslinked structure. The resultant network formation in the thermosets directly correlated with enhanced water resistance. Remarkably, the thermosetting starch originating from pineapple stem starch demonstrated continued biodegradability following a soil burial test, albeit at a notably slower rate when compared to its thermoplastic counterpart. These findings hold the potential to pave the way for the utilization of starch-based products, thereby replacing non-biodegradable petroleum-based materials and contributing to the creation of more enduring and sustainable commodities. MDPI 2023-09-20 /pmc/articles/PMC10536683/ /pubmed/37765686 http://dx.doi.org/10.3390/polym15183832 Text en © 2023 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
Tessanan, Wasan
Phinyocheep, Pranee
Amornsakchai, Taweechai
Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title_full Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title_fullStr Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title_full_unstemmed Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title_short Development of Biodegradable Thermosetting Plastic Using Dialdehyde Pineapple Stem Starch
title_sort development of biodegradable thermosetting plastic using dialdehyde pineapple stem starch
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536683/
https://www.ncbi.nlm.nih.gov/pubmed/37765686
http://dx.doi.org/10.3390/polym15183832
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