Functional Hydrogels for Agricultural Application

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dc.contributor.authorKratochvílová, Romanacs
dc.contributor.authorKráčalík, Milancs
dc.contributor.authorSmilková, Marcelacs
dc.contributor.authorSedláček, Petrcs
dc.contributor.authorPekař, Miloslavcs
dc.contributor.authorBradt, Elkecs
dc.contributor.authorSmilek, Jiřícs
dc.contributor.authorZávodská, Petracs
dc.contributor.authorKlučáková, Martinacs
dc.coverage.issue7cs
dc.coverage.volume9cs
dc.date.issued2023-07-22cs
dc.description.abstractTen different hydrogels were prepared and analyzed from the point of view of their use in soil. FT-IR spectra, morphology, swelling ability, and rheological properties were determined for their characterization and appraisal of their stability. The aim was to characterize prepared materials containing different amounts of NPK as mineral fertilizer, lignohumate as a source of organic carbon, and its combination. This study of stability was focused on utility properties in their application in soil—repeated drying/re-swelling cycles and possible freezing in winter. Lignohumate supported the water absorbency, while the addition of NPK caused a negative effect. Pore sizes decreased with NPK addition. Lignohumate incorporated into polymers resulted in a much miscellaneous structure, rich in different pores and voids of with a wide range of sizes. NPK fertilizer supported the elastic character of prepared materials, while the addition of lignohumate shifted their rheological behavior to more liquid. Both dynamic moduli decreased in time. The most stable samples appeared to contain only one fertilizer constituent (NPK or lignohumate). Repeated re-swelling resulted in an increase in elastic character, which was connected with the gradual release of fertilizers. A similar effect was observed with samples that were frozen and defrosted, except samples containing a higher amount of NPK without lignohumate. A positive effect of acrylamide on superabsorbent properties was not confirmed.en
dc.formattextcs
dc.format.extent1-17cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationGels. 2023, vol. 9, issue 7, p. 1-17.en
dc.identifier.doi10.3390/gels9070590cs
dc.identifier.issn2310-2861cs
dc.identifier.orcid0000-0002-6211-9643cs
dc.identifier.orcid0000-0002-3878-0917cs
dc.identifier.orcid0000-0002-6553-1764cs
dc.identifier.orcid0009-0000-1588-5196cs
dc.identifier.orcid0000-0003-4969-6988cs
dc.identifier.other184167cs
dc.identifier.scopus25621752900cs
dc.identifier.scopus55844628200cs
dc.identifier.urihttp://hdl.handle.net/11012/244993
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofGelscs
dc.relation.urihttps://www.mdpi.com/2310-2861/9/7/590cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2310-2861/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectDeset různých vzorků hydrogelů na bázi polyakrylové kyseliny s přídavkem akrylamiduen
dc.subjectNPK a lignohumátu v různých kombinacích bylo připraveno a analyzováno. FT-IRen
dc.subjectSEMen
dc.subjectbotnací experimenty a relogie byly metodami použitými pro charakterizaci připravených vzorků. Viskoelastické vlastnosti byly dále studovány z hlediska stability vzorků v časeen
dc.subjectpři opakovaném botnání a přemražení.en
dc.titleFunctional Hydrogels for Agricultural Applicationen
dc.title.alternativeFunkční hydrogely pro zemědělské aplikacecs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-184167en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:57en
sync.item.modts2025.01.17 16:34:20en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav fyzikální a spotřební chemiecs
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