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The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures
Various applications of superabsorbent polymers (SAP) include the use of these materials in agriculture and environmental engineering to increase soil water retention. Under such conditions, there is water absorption of the SAP in soil under load. This paper presents the results of absorbency under...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888822/ https://www.ncbi.nlm.nih.gov/pubmed/31792322 http://dx.doi.org/10.1038/s41598-019-54744-4 |
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author | Misiewicz, Jakub Lejcuś, Krzysztof Dąbrowska, Jolanta Marczak, Daria |
author_facet | Misiewicz, Jakub Lejcuś, Krzysztof Dąbrowska, Jolanta Marczak, Daria |
author_sort | Misiewicz, Jakub |
collection | PubMed |
description | Various applications of superabsorbent polymers (SAP) include the use of these materials in agriculture and environmental engineering to increase soil water retention. Under such conditions, there is water absorption of the SAP in soil under load. This paper presents the results of absorbency under load (AUL) of a cross-linked copolymer of acrylamide and potassium acrylate mixed at ratios of 0.3%, 0.5% and 1.0% with coarse sand and sandy loam. The mixtures were subjected to loads equivalent to 10, 20 and 40 cm of soil. The highest differences in AUL values for both soils, compared to the control sample, were obtained after 24 hours and at a maximum load of 5.9 kPa, which corresponds to a load of a 40 cm thick topsoil layer. The AUL was 71.4 g∙g(−1) for coarse sand and 52.7 g∙g(−1) for sandy loam with a 1.0% SAP addition, which corresponded to 24.0% and 18.0%, respectively, of the absorption in the control sample. All the conducted tests revealed a significantly low rate of water absorbency, which is especially important for capturing the water that infiltrates into the soil profile. The results demonstrate that water absorption by SAPs decreased with the increase in SAP addition. |
format | Online Article Text |
id | pubmed-6888822 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68888222019-12-10 The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures Misiewicz, Jakub Lejcuś, Krzysztof Dąbrowska, Jolanta Marczak, Daria Sci Rep Article Various applications of superabsorbent polymers (SAP) include the use of these materials in agriculture and environmental engineering to increase soil water retention. Under such conditions, there is water absorption of the SAP in soil under load. This paper presents the results of absorbency under load (AUL) of a cross-linked copolymer of acrylamide and potassium acrylate mixed at ratios of 0.3%, 0.5% and 1.0% with coarse sand and sandy loam. The mixtures were subjected to loads equivalent to 10, 20 and 40 cm of soil. The highest differences in AUL values for both soils, compared to the control sample, were obtained after 24 hours and at a maximum load of 5.9 kPa, which corresponds to a load of a 40 cm thick topsoil layer. The AUL was 71.4 g∙g(−1) for coarse sand and 52.7 g∙g(−1) for sandy loam with a 1.0% SAP addition, which corresponded to 24.0% and 18.0%, respectively, of the absorption in the control sample. All the conducted tests revealed a significantly low rate of water absorbency, which is especially important for capturing the water that infiltrates into the soil profile. The results demonstrate that water absorption by SAPs decreased with the increase in SAP addition. Nature Publishing Group UK 2019-12-02 /pmc/articles/PMC6888822/ /pubmed/31792322 http://dx.doi.org/10.1038/s41598-019-54744-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Misiewicz, Jakub Lejcuś, Krzysztof Dąbrowska, Jolanta Marczak, Daria The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title | The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title_full | The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title_fullStr | The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title_full_unstemmed | The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title_short | The Characteristics of Absorbency Under Load (AUL) for Superabsorbent and Soil Mixtures |
title_sort | characteristics of absorbency under load (aul) for superabsorbent and soil mixtures |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6888822/ https://www.ncbi.nlm.nih.gov/pubmed/31792322 http://dx.doi.org/10.1038/s41598-019-54744-4 |
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