Search results for " Stearic acid"

showing 3 items of 3 documents

One-step electrodeposition of superhydrophobic coating on 316L stainless steel

2021

Superhydrophobic coatings were fabricated through a one-step electrochemical process onto the surface of 316L stainless steel samples. The presence of hierarchical structures at micro/nanoscale and manganese stearate into the coatings gave superhydrophobicity to the coating, with contact angle of ~160°, and self-cleaning ability. Corrosion resistance of 316L samples was also assessed also after the electrodeposition process through Electrochemical Impedance Spectra recorded in an aqueous solution mimicking seawater condition.

Materials science316L Electrodeposition Self-cleaning Stainless steel Stearic acid superhydrophobicitychemistry.chemical_elementOne-StepManganeseengineering.materialCorrosionContact anglechemistry.chemical_compoundCoatingStearate316LGeneral Materials ScienceComposite materialstainless steelAqueous solutionMining engineering. MetallurgyMetals and AlloysTN1-997stearic acidSuperhydrophobic coatingSettore ING-IND/23 - Chimica Fisica Applicatachemistryengineeringelectrodepositionself-cleaningsuperhydrophobicity
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Double Step Electrochemical Process for the Deposition of Superhydrophobic Coatings for Enhanced Corrosion Resistance

2021

Superhydrophobic surface on anodized AA5083 sample was obtained by an electrochemical process. Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy analyses revealed the hierarchical structure of the coating and the presence of manganese stearate. These features were crucial for the coating superhydrophobicity, demonstrated by a measured contact angle of ~ 163° and its self-cleaning ability. Electrochemical characterization in an aqueous solution mimicking seawater proved an enhanced corrosion resistance due to the superhydrophobic coating with respect to anodized AA5083 sample that also lasted after 20 immersion days in Cl- containing electrolyte.

Materials scienceRenewable Energy Sustainability and the EnvironmentAnodizingScanning electron microscopeengineering.materialCondensed Matter PhysicsSuperhydrophobic coatingSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCorrosionAA5083 Electrodeposition Marine corrosion Superhydrophobic Stearic acid Self-cleaningContact anglechemistry.chemical_compoundSettore ING-IND/23 - Chimica Fisica ApplicataCoatingchemistryChemical engineeringStearateMaterials ChemistryElectrochemistryengineeringFourier transform infrared spectroscopy
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Hyaluronan Graft Copolymers Bearing Fatty-Acid Residues as Self-Assembling Nanoparticles for Olanzapine Delivery

2019

In order to evaluate the potential of a technology platform based on hyaluronan copolymers grafted with propargylated ferulate fluorophores (HA-FA-Pg) in the development of drug delivery systems, the propargyl groups of HA-FA-Pg derivatives were employed with oleic acid (OA) or stearic acid (SA) residues across a biocompatible hexa(ethylene glycol) (HEG) spacer. The designed materials (i.e., HA-FA-HEG-OA or HA-FA-HEG-SA) showed clear-cut aggregation features in an aqueous environment, as confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM), generating nanoaggregate systems. In fact, HA-FA-HEG-OA and HA-FA-HEG-SA derivatives showed the property to create sel…

olanzapinePharmaceutical Science02 engineering and technologyself-assembling nanocarrier010402 general chemistry01 natural sciencesArticlechemistry.chemical_compounddrug delivery systemsDynamic light scatteringhyaluronic acidCopolymerSide chainSolubilityDrug delivery systems; Ferulic acid; Hyaluronic acid; Olanzapine; Oleic acid; Self-assembling nanocarriers; Stearic acidSelf-assembling nanocarriersstearic acid021001 nanoscience & nanotechnology0104 chemical sciencesOleic acidchemistryChemical engineeringoleic acidDrug deliveryStearic acid0210 nano-technologyEthylene glycolferulic acid
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