Tekstil ve Muhendis, vol.29, no.126, pp.88-95, 2022 (Scopus)
© 2022. Tekstil ve Muhendis. All Rights Reserved.To create an agrotextile structure with water-absorbing/retaining and controlled fertilizer release properties for agricultural applications,75/25 poly(ethylene terephthalate)/viscose (PET/CV) nonwoven fabrics (DY) were firstly coated with poly(vinyl alcohol) (PVOH) and then with sodium carboxymethyl cellulose (Na-CMC), potassium nitrate (PN) and citric acid (CA) solutions. PVOH and Na-CMC coating amounts were adjusted to 120 g/m2 and 30, 60, and 90 g/m2, respectively, and 5% CA was utilized as a cross-linker. Morphological and structural, water absorbency, water retention, and fertilizer release behaviors of the nonwoven fabrics were investigated after coating. When the results of the study were evaluated, it could be said that the use of citric acid supported the formation of crosslinking and all coating formulations had a water absorbency capacity of over 1000%. Furthermore, the created agrotextile structures displayed a linear fertilizer release pattern, indicating that they provided the criteria for being classified as a controlled-release fertilizer. However, no sample achieved the nutrient release rate criteria. When the prepared formulations were evaluated in terms of performance, it could be said that the formulation made with 60 g/m2 Na-CMC had the most optimum properties.