Impact of plasticizers on lignin-carrageenan formulation properties and on phosphorus release from a coated TSP fertilizer - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Industrial and engineering chemistry research Année : 2020

Impact of plasticizers on lignin-carrageenan formulation properties and on phosphorus release from a coated TSP fertilizer

Résumé

A new coated slow-release triple superphosphate (TSP) fertilizer was developed using formulations based on lignin (L) derived from olive pomace (OP) and a κ-carrageenan (C) biopolymer, and different plasticizers were added: glycerol (G) and polyethylene glycol 200 (P200) and 2000 (P2000). The effect of the type and molecular weight of the plasticizer on the physicochemical properties of the composites and phosphorus (P) release was investigated. The results showed a slight improvement in the thermal stability of the LC composite upon the addition of polyethylene glycol, while the hydrophobicity decreased. The addition of the plasticizers also decreased the elasticity of all the films except for P2000. The coating materials decreased the P release from 100% within 3 days for uncoated TSP to 55–69% within 30 days for coated TSP. However, the LC plasticizer formulations did not decrease P release compared to the LC formulations.
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hal-02940361 , version 1 (16-09-2020)

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Saloua Fertahi, Isabelle Bertrand, Mohamed Ilsouk, Abdallah Oukarroum, M'Barek Amjoud, et al.. Impact of plasticizers on lignin-carrageenan formulation properties and on phosphorus release from a coated TSP fertilizer. Industrial and engineering chemistry research, 2020, 6 (31), pp.14172-14179. ⟨10.1021/acs.iecr.0c03143⟩. ⟨hal-02940361⟩
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