New UV?Curable Anticorrosion Coatings from Vegetable Oils
نویسندگان
چکیده
Bio-based epoxy resins are attracting widespread interest in the field of polymer thermosets as environmentally friendly building block. In present study, feasibility applying UV-curable epoxidized vegetable oils (EVOs) anti-corrosion coating is investigated. Rheological characterization EVOs carried out, and their viscosity-shear relationship evaluated. The cationic UV-curing successfully gives rise to crosslinked materials with a wide range thermo-mechanical properties, evaluated by differential scanning calorimetric analysis dynamic thermal mechanical analysis. A high epoxy-group conversion, ranging from 93% 99%, always obtained. stability surface properties bio-based coatings, such as, pencil hardness, adhesion, solvent resistance, contact angle, analyzed. Moreover, corrosion protection effectiveness coatings characterized potentiodynamic polarization electrochemical impedance spectroscopy measurements. addition, emission electron microscopy used assess samples morphology after tests.
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ژورنال
عنوان ژورنال: Macromolecular Materials and Engineering
سال: 2021
ISSN: ['1439-2054', '1438-7492']
DOI: https://doi.org/10.1002/mame.202100029