Development of poly(urethane-ester)amide from corn oil and their anticorrosive studies
Corn oil-based poly(urethane-ester)amide was synthesized from corn oilbased
fatty amide diol, camphoric acid, and tolylene 2,4-diisocyanate. The
structure of corn polyesteramide and corn poly(urethane-ester)amide (CPEA)
was confirmed by Fourier transform infrared, 1H NMR, and 13C NMR
spectroscopic techniques. CPUEA coatings were made on mild steel strips
and their physicomechanical analysis (scratch hardness, impact test, conical
mandrel test, and pencil hardness tests) was performed by standard
methods. The surface morphology of coatings was observed by scanning
electron microscopy and thermal stability was assessed by thermogravimetric
analysis/differential scanning calorimetry. Anticorrosion properties of
CPUEA were observed in acidic, saline, and tap water medium at room
temperature using potentiodynamic polarization technique. The results of
CPUEA coatings exhibit good physicomechanical and anticorrosive
properties and can find application up to 175°C.
Olive oil based polyurethanamide/ZnO biocomposites were prepared by energy efficient microwave irradiation
technique. The biocomposites showed good coating properties: scratch resistance,…
Herein, wereportthesuccessfulfabricationofhighlysensitive,reproducibleandreliablenitroaniline
chemical sensorbasedonZnOdopedCeO2 nanoparticles. TheZnOdopedCeO2 nanoparticles were
…