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Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability

The research analyzes technological properties and stability of innovative gel-forming polymeric materials for complex soil conditioning. These materials combine improvements in the water retention, dispersity, hydraulic properties, anti-erosion and anti-pathogenic protection of the soil along with...

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Autores principales: Smagin, Andrey V., Budnikov, Viktor I., Sadovnikova, Nadezhda B., Kirichenko, Anatoly V., Belyaeva, Elena A., Krivtsova, Victoria N.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657216/
https://www.ncbi.nlm.nih.gov/pubmed/36365658
http://dx.doi.org/10.3390/polym14214665
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author Smagin, Andrey V.
Budnikov, Viktor I.
Sadovnikova, Nadezhda B.
Kirichenko, Anatoly V.
Belyaeva, Elena A.
Krivtsova, Victoria N.
author_facet Smagin, Andrey V.
Budnikov, Viktor I.
Sadovnikova, Nadezhda B.
Kirichenko, Anatoly V.
Belyaeva, Elena A.
Krivtsova, Victoria N.
author_sort Smagin, Andrey V.
collection PubMed
description The research analyzes technological properties and stability of innovative gel-forming polymeric materials for complex soil conditioning. These materials combine improvements in the water retention, dispersity, hydraulic properties, anti-erosion and anti-pathogenic protection of the soil along with a high resistance to negative environmental factors (osmotic stress, compression in the pores, microbial biodegradation). Laboratory analysis was based on an original system of instrumental methods, new mathematical models, and the criteria and gradations of the quality of gels and their compositions with mineral soil substrates. The new materials have a technologically optimal degree of swelling (200–600 kg/kg in pure water and saline solutions with 1–3 g/L TDS), high values of surface energy (>130 kJ/kg), specific surface area (>600 m(2)/g), threshold of gel collapse (>80 mmol/L), half-life (>5 years), and a powerful fungicidal effect (EC(50) biocides doses of 10–60 ppm). Due to these properties, the new gel-forming materials, in small doses of 0.1–0.3% increased the water retention and dispersity of sandy substrates to the level of loams, reduced the saturated hydraulic conductivity 20–140 times, suppressed the evaporation 2–4 times, and formed a windproof soil crust (strength up to 100 kPa). These new methodological developments and recommendations are useful for the complex laboratory testing of hydrogels in small (5–10 g) soil samples.
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spelling pubmed-96572162022-11-15 Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability Smagin, Andrey V. Budnikov, Viktor I. Sadovnikova, Nadezhda B. Kirichenko, Anatoly V. Belyaeva, Elena A. Krivtsova, Victoria N. Polymers (Basel) Article The research analyzes technological properties and stability of innovative gel-forming polymeric materials for complex soil conditioning. These materials combine improvements in the water retention, dispersity, hydraulic properties, anti-erosion and anti-pathogenic protection of the soil along with a high resistance to negative environmental factors (osmotic stress, compression in the pores, microbial biodegradation). Laboratory analysis was based on an original system of instrumental methods, new mathematical models, and the criteria and gradations of the quality of gels and their compositions with mineral soil substrates. The new materials have a technologically optimal degree of swelling (200–600 kg/kg in pure water and saline solutions with 1–3 g/L TDS), high values of surface energy (>130 kJ/kg), specific surface area (>600 m(2)/g), threshold of gel collapse (>80 mmol/L), half-life (>5 years), and a powerful fungicidal effect (EC(50) biocides doses of 10–60 ppm). Due to these properties, the new gel-forming materials, in small doses of 0.1–0.3% increased the water retention and dispersity of sandy substrates to the level of loams, reduced the saturated hydraulic conductivity 20–140 times, suppressed the evaporation 2–4 times, and formed a windproof soil crust (strength up to 100 kPa). These new methodological developments and recommendations are useful for the complex laboratory testing of hydrogels in small (5–10 g) soil samples. MDPI 2022-11-01 /pmc/articles/PMC9657216/ /pubmed/36365658 http://dx.doi.org/10.3390/polym14214665 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
Smagin, Andrey V.
Budnikov, Viktor I.
Sadovnikova, Nadezhda B.
Kirichenko, Anatoly V.
Belyaeva, Elena A.
Krivtsova, Victoria N.
Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title_full Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title_fullStr Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title_full_unstemmed Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title_short Gel-Forming Soil Conditioners of Combined Action: Laboratory Tests for Functionality and Stability
title_sort gel-forming soil conditioners of combined action: laboratory tests for functionality and stability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9657216/
https://www.ncbi.nlm.nih.gov/pubmed/36365658
http://dx.doi.org/10.3390/polym14214665
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