Corrosion performance of polyurethane hybrid coatings with encapsulated inhibitor was written by Alrashed, Maher M.;Jana, Sadhan;Soucek, Mark D.. And the article was included in Progress in Organic Coatings in 2019.Electric Literature of C9H20O2 The following contents are mentioned in the article:
Direct incorporation of inhibitor mols. in hybrid coatings results in premature deterioration of coatings performance. The inhibitor mols. interfere with curing of the organic coating and cause delamination due to fast leaching. This challenge is overcome in this work by encapsulating an effective organic inhibitor, 2-mercaptobenzothiazole (MBT), in polylactic acid (PLA) nanoparticles produced via nanopptn. method for corrosion protection of 2024-T3 aluminum alloy. The nanoparticles are designed as function of polylactic acid concentration, solvent/antisolvent volume ratio, and the PLA/MBT mass ratio. Nanoparticle size distribution, inhibitor loading percentage, and encapsulation efficiency are studied. The PLA nanoparticles with encapsulated MBT are incorporated in a polyurethane/polysiloxane hybrid coating and its properties are evaluated using impact resistance, pull-off strength, cross-hatch adhesion, pencil and pendulum hardness, and solvent resistance. The corrosion performance of the hybrid coatings is investigated by electrochem. impedance spectroscope (EIS) and potentiostatic polarization. The polyurethane/polysiloxane hybrid coating shows a 200-fold increase in corrosion induction time due to incorporation of MBT-impregnated PLA nanoparticles. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Electric Literature of C9H20O2).
2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Electric Literature of C9H20O2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts