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Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran

The impact of the amount of durum wheat bran additive used on the selected structural, mechanical, and spectroscopic properties of thermoplastic starch moldings was examined in this study. Bran was added to corn starch from 10 to 60% by weight in the blends. Four temperature settings were used for t...

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Autores principales: Combrzyński, Maciej, Wójtowicz, Agnieszka, Oniszczuk, Anna, Karcz, Dariusz, Szponar, Jarosław, Matwijczuk, Arkadiusz P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317448/
https://www.ncbi.nlm.nih.gov/pubmed/35888526
http://dx.doi.org/10.3390/ma15145061
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author Combrzyński, Maciej
Wójtowicz, Agnieszka
Oniszczuk, Anna
Karcz, Dariusz
Szponar, Jarosław
Matwijczuk, Arkadiusz P.
author_facet Combrzyński, Maciej
Wójtowicz, Agnieszka
Oniszczuk, Anna
Karcz, Dariusz
Szponar, Jarosław
Matwijczuk, Arkadiusz P.
author_sort Combrzyński, Maciej
collection PubMed
description The impact of the amount of durum wheat bran additive used on the selected structural, mechanical, and spectroscopic properties of thermoplastic starch moldings was examined in this study. Bran was added to corn starch from 10 to 60% by weight in the blends. Four temperature settings were used for the high-pressure injection: 120, 140, 160, and 180 °C. The highest value of elongation at break (8.53%) was observed for moldings containing 60% bran. Moreover, for these moldings, the tensile strength and flexural strength were lower (appropriately 3.43 MPa and 27.14 MPa). The highest deformation at break (1.56%) were obtained for samples with 60% bran and injection molded at 180 °C. We saw that higher bran content (50 and 60%) and a higher injection molding temperature (160 °C and 180 °C) significantly changed the color of the samples. The most significant changes in the FTIR spectra were observed at 3292 and 1644 cm(−1) and in the region of 1460–1240 cm(−1). Moreover, notable changes were observed in the intensity ratio of bands at 1015 and 955 cm(−1). The changes observed correspond well with the amount of additive used and with the injection temperature applied; thus it may be considered as a marker of interactions affecting plasticization of the material obtained.
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spelling pubmed-93174482022-07-27 Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran Combrzyński, Maciej Wójtowicz, Agnieszka Oniszczuk, Anna Karcz, Dariusz Szponar, Jarosław Matwijczuk, Arkadiusz P. Materials (Basel) Article The impact of the amount of durum wheat bran additive used on the selected structural, mechanical, and spectroscopic properties of thermoplastic starch moldings was examined in this study. Bran was added to corn starch from 10 to 60% by weight in the blends. Four temperature settings were used for the high-pressure injection: 120, 140, 160, and 180 °C. The highest value of elongation at break (8.53%) was observed for moldings containing 60% bran. Moreover, for these moldings, the tensile strength and flexural strength were lower (appropriately 3.43 MPa and 27.14 MPa). The highest deformation at break (1.56%) were obtained for samples with 60% bran and injection molded at 180 °C. We saw that higher bran content (50 and 60%) and a higher injection molding temperature (160 °C and 180 °C) significantly changed the color of the samples. The most significant changes in the FTIR spectra were observed at 3292 and 1644 cm(−1) and in the region of 1460–1240 cm(−1). Moreover, notable changes were observed in the intensity ratio of bands at 1015 and 955 cm(−1). The changes observed correspond well with the amount of additive used and with the injection temperature applied; thus it may be considered as a marker of interactions affecting plasticization of the material obtained. MDPI 2022-07-20 /pmc/articles/PMC9317448/ /pubmed/35888526 http://dx.doi.org/10.3390/ma15145061 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
Combrzyński, Maciej
Wójtowicz, Agnieszka
Oniszczuk, Anna
Karcz, Dariusz
Szponar, Jarosław
Matwijczuk, Arkadiusz P.
Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title_full Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title_fullStr Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title_full_unstemmed Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title_short Selected Physical and Spectroscopic Properties of TPS Moldings Enriched with Durum Wheat Bran
title_sort selected physical and spectroscopic properties of tps moldings enriched with durum wheat bran
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9317448/
https://www.ncbi.nlm.nih.gov/pubmed/35888526
http://dx.doi.org/10.3390/ma15145061
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