Title: Nanoencapsulation of intercalated montmorillonite‐urea within PVA nanofibers: Hydrogel fertilizer nanocomposite
Journal: Journal of Applied Polymer Science
Author: 1. Wan Ahmad Kamil Mahmood, Eunice Kwok, Wan Farahhanim Bt Wan Fathilah, Nor Fazilah Binti Ibrahim, 1,2. Mohammad Hossein Azarian
Year: 2018
Address: 1. School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden Penang, Malaysia 2. Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi, Thungkru, Bangkok 10140, Thailand
Abstract: This study describes the preparation and characterization of nanofibers with poly(vinyl alcohol) (PVA) as the wall matrix to encapsulate montmorillonite (MMT) clay and intercalated MMT-urea nanocomposite using an electrospinning technique. Nanofibers encapsulated with (1–5%, w/w) MMT clay were successfully produced and characterized in relation to morphological, spectroscopic, structural, surface, and thermal properties. The electrospinning conditions for voltage, flow-rate, and emitter to collector distance were 20 kV, 0.5, and 0.25 mL/h, and 10 cm, respectively. The surface roughness increased from 43.5 (empty fibers) to 56 nm in the PVA/MMT-3% and bead-less nanofibers were formed with the maximum diameter distribution and mean diameter value of 45–80 and 62 nm, respectively. The d-spacing was increased significantly from 1.004 in MMT to 1.684 nm in MMT-urea, indicating the intercalation of urea occurred successfully. Furthermore, elemental analysis results showed that the intercalated MMT-urea contained 30.4% nitrogen.
Keywords:
Application: Nanocomposite
Product Model 1: Syringe Pump
Product Model 2:
URL: #https://onlinelibrary.wiley.com/doi/abs/10.1002/app.45957#