Polymethyl methacrylate-g-carboxy-methylcellulose as an amphiphilic coating material for slow-release fertilizer

被引：0
作者：
Boutriouia E.H. [1 ]
El Assimi T. [1 ]
Raihane M. [1 ]
Beniazza R. [2 ]
Youcef H.B. [2 ]
Khouloud M. [3 ]
Baouab M.H.V. [4 ]
El Kadib A. [5 ]
Lahcini M. [1 ,2 ]
机构：
[1] IMED-Lab, Faculty of Sciences and Techniques, Cadi Ayyad University (UCA), Avenue Abdelkrim Elkhattabi, B.P 549, Marrakech
[2] Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, Ben Guerir
[3] Fertilizers Unit, OCP Group, Mohammed VI Polytechnic University, Jorf Lasfar
[4] Research Unit Material and Organic Synthesis (UR17ES31), Preparatory Institute for Engineering Studies of Monastir, University of Monastir, Avenue of the environment, Monastir
[5] Euro-Med Research Institute, Engineering Division, Euro-Med University of Fes (UEMF), Route de Meknès, Rond-point de Bensouda, Fez
来源：
Progress in Organic Coatings | 2022年 / 172卷
关键词：
Carboxymethyl cellulose; Grafting; Polymethyl methacrylate; Slow and controlled release fertilizers;
D O I：
10.1016/j.porgcoat.2022.107102
中图分类号：
学科分类号：
摘要：
In the perspective of preparing coating material of water-soluble fertilizer with controlled and slow-release property, polymethyl methacrylate (PMMA) was grafted from carboxymethyl cellulose (CMC) through in-situ polymerization using potassium persulfate (KPS) as initiator. The prepared copolymers (PMMA-g-CMC) were fully characterized using Transform Infrared Spectroscopy (FTIR), Thermogravimetric analysis (TGA), Differential Scanning Calorimetry (DSC), Dynamic light scattering (DLS), X-Ray diffraction (XRD), Brunauer Emmett Teller (BET), Scanning electron microscopy (SEM) and mechanical tensile testing. The molecular weight (Mn) was also evaluated using the size exclusion chromatography (SEC). Next, conventional water-soluble diammonium phosphate (DAP) fertilizer was coated by the prepared copolymers using laboratory rotary drum. The coating effectiveness was evaluated in terms of its uniformity and thickness. The successfully coated nanomaterials significantly delay the release rate of nitrogen (N) and phosphorus (P) in water and soil, compared to their release using uncoated fertilizers. Finally, aerobic biodegradation of the coating agent was also demonstrated. © 2022 Elsevier B.V.
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