info:eu-repo/semantics/article
Absorption of Siderite Within a Chemically Modified Poly(lactic acid) Based Composite Material for Agricultural Applications
Fecha
2018-05Registro en:
Garcia, Nancy Lis; Fascio, Mirta Liliana; Errea, María Inés; Dufresne, Alain; Goyanes, Silvia Nair; et al.; Absorption of Siderite Within a Chemically Modified Poly(lactic acid) Based Composite Material for Agricultural Applications; Springer/Plenum Publishers; Journal of Polymers and the Environment; 26; 5; 5-2018; 2173-2181
1566-2543
CONICET Digital
CONICET
Autor
Garcia, Nancy Lis
Fascio, Mirta Liliana
Errea, María Inés
Dufresne, Alain
Goyanes, Silvia Nair
D'accorso, Norma Beatriz
Resumen
Iron is an essential micronutrient for higher plants. Although abundant in most soils, Fe3+ is not available for plant uptake, because of its poor solubility. Ferrous sulfate is a fertilizer used for crops but, Fe2+ is readily oxidized to the plant-unavailable ferric form. It is therefore important to provide Fe2+ to plants, minimizing the loss of this nutrient by oxidation in Fe3+. This paper reports the development of a composite material consisting of a matrix (PLARAM), obtained by the chemical modification of poly(lactic acid), capable of retaining ferrous carbonate (siderite) within PLARAM (PLARAMFe). From the matrix, Fe2+ is released into the soil, enhancing its bioavailability. PLARAM and PLARAMFe films were obtained and their water wettability was studied. One side of the films was more hydrophilic than the other, turning this material attractive as a protective film when it is necessary to avoid loss of humidity.