دورية أكاديمية
Superabsorbent Hydrogels Based to Polyacrylamide/Cashew Tree Gum for the Controlled Release of Water and Plant Nutrients.
| العنوان: | Superabsorbent Hydrogels Based to Polyacrylamide/Cashew Tree Gum for the Controlled Release of Water and Plant Nutrients. |
|---|---|
| المؤلفون: | Rodrigues Sousa H; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Lima IS; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Neris LML; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Silva AS; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Santos Nascimento AMS; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Araújo FP; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Ratke RF; Graduate Studies in Agronomy, Mato Grosso of Soulth Federal University, Chapadão do Sul 76560-000, Mato Grosso do Sul, Brazil., Silva DA; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil.; Research Center on Biodiversity and Biotechnolog, Delta do Parnaíba Federal University, Parnaíba 64202-020, Piaui, Brazil., Osajima JA; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil., Bezerra LR; Veterinary Medicine Academic Unit, Campina Grande Federal University, Patos 58708-110, Paraíba, Brazil., Silva-Filho EC; LIMAV, Interdisciplinary Laboratory for Advanced Materials, Piaui Federal University, Campus Universitário Ministro Petrônio Portella, Teresina 64049-550, Piaui, Brazil. |
| المصدر: | Molecules (Basel, Switzerland) [Molecules] 2021 May 03; Vol. 26 (9). Date of Electronic Publication: 2021 May 03. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: MDPI Country of Publication: Switzerland NLM ID: 100964009 Publication Model: Electronic Cited Medium: Internet ISSN: 1420-3049 (Electronic) Linking ISSN: 14203049 NLM ISO Abbreviation: Molecules Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Basel, Switzerland : MDPI, c1995- |
| مواضيع طبية MeSH: | Anacardium*, Acrylic Resins/*chemistry , Hydrogels/*chemistry , Plant Gums/*chemistry, Animals ; Artemia ; Cross-Linking Reagents ; Delayed-Action Preparations ; Diffusion ; Fertilizers ; Hydrogen/chemistry ; Hydrogen-Ion Concentration ; Kinetics ; Microscopy, Electron, Scanning ; Nutrients ; Phosphates/chemistry ; Phosphorus ; Polymers/chemistry ; Polysaccharides/chemistry ; Potassium/chemistry ; Spectroscopy, Fourier Transform Infrared ; Trees ; Water ; X-Ray Diffraction |
| مستخلص: | Agricultural production is influenced by the water content in the soil and availability of fertilizers. Thus, superabsorbent hydrogels, based on polyacrylamide, natural cashew tree gum (CG) and potassium hydrogen phosphate (PHP), as fertilizer and water releaser were developed. The structure, morphology, thermal stability and chemical composition of samples of polyacrylamide and cashew tree gum hydrogels with the presence of fertilizer (HCGP) and without fertilizer (HCG) were investigated, using X-ray diffractometry (XRD), Fourier Transformed Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA/DTG) and Energy Dispersive Spectroscopy (EDS). Swelling/reswelling tests, textural analysis, effect of pH, release of nutrients and kinetics were determined; the ecotoxicity of the hydrogels was investigated by the Artemia salina test. The results showed that PHP incorporation in the hydrogel favored the crosslinking of chains. This increased the thermal stability in HCGP but decreased the hardness and adhesion properties. The HCGP demonstrated good swelling capacity (~15,000 times) and an excellent potential for reuse after fifty-five consecutive cycles. The swelling was favored in an alkaline pH due to the ionization of hydrophilic groups. The sustained release of phosphorus in HCGP was described by the Korsmeyer-Peppas model, and Fickian diffusion is the main fertilizer release mechanism. Finally, the hydrogels do not demonstrate toxicity, and HCGP has potential for application in agriculture. |
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| معلومات مُعتمدة: | [441321/2017-8]. Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| فهرسة مساهمة: | Keywords: agriculture; controlled release fertilizer; interpenetrating polymer network |
| المشرفين على المادة: | 0 (Acrylic Resins) 0 (Cross-Linking Reagents) 0 (Delayed-Action Preparations) 0 (Fertilizers) 0 (Hydrogels) 0 (Phosphates) 0 (Plant Gums) 0 (Polymers) 0 (Polysaccharides) 059QF0KO0R (Water) 27YLU75U4W (Phosphorus) 7YNJ3PO35Z (Hydrogen) 9003-05-8 (polyacrylamide) RWP5GA015D (Potassium) |
| تواريخ الأحداث: | Date Created: 20210602 Date Completed: 20210709 Latest Revision: 20240810 |
| رمز التحديث: | 20240812 |
| مُعرف محوري في PubMed: | PMC8125684 |
| DOI: | 10.3390/molecules26092680 |
| PMID: | 34063701 |
| قاعدة البيانات: | MEDLINE |
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