64 research outputs found
Zinc layered hydroxide salts: intercalation and incorporation into low-density polyethylene
Polyurethane composite adsorbent using solid phase extraction method for preconcentration of metal ion from aqueous solution
Polyurethane composite adsorbent polymeric material was prepared and investigated for selected solid-phase extraction for metal ions, prior to its determination by inductively coupled plasma optical emission spectrometry. The surface characterisation was done using Fourier transform infrared spectroscopy. The separation and preconcentration conditions of the analytes investigated includes influence of pH, sample loading flow rate, elution flow rate, type and concentration of eluents. The optimum pH for the highest efficient recoveries for all metal ions, which ranged from 70 to 85 %, is pH 7. The metal ions were quantitatively eluted with 5 mL of 2 mol/L HNO3. Common coexisting ions did not interfere with the separation. The percentage recovery of the metal ions ranged between 70 and 89 %, while the results for the limit of detection and limit of quantification ranged from 0.249 to 0.256 and 0.831 to 0.855, respectively. The experimental tests showed good preconcentration results of trace levels of metal ions using synthesised polyurethane polymer adsorbent composite
Effect of Addition of Hybrid Nanoclay and Nano-Alumina Fillers on the Mechanical and Thermal Performances of Polypropylene Composites
Assessing the variable molecular architecture of poly(ethylene terephthalate) under reactive modification by melt and dilute solution rheology
Polyamide 6 composites with melamine polyphosphate and layered silicates: Evaluation of flame retardancy and physical properties
Polyamide 6 filled with melamine cyanurate and layered silicates: Evaluation of flame retardancy and physical properties
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