Advertisements

Polyaniline coated core-shell polyacrylates for corrosion protection

Researchers synthesized aqueous polymer colloidal nanoparticles, composed by poly(methyl metacrylate), butyl acrylate, and acrylic acid, as “core” (P(MMA/BA/AA)); and polyaniline (PAni) doped with dodecylbenzenesulfonic acid (DBSA), as “shell” in order to investigate corrosion protection of metal. Free radical emulsion polymerization, followed by a second step where the chemical oxidative polymerization of aniline monomers upper the “core” surfaces was used in the synthesis. The results showed that the presence of a low concentration of PAni-DBSA (3 wt. %) on the acrylic polymer altered the hydrophilicity and the water uptake properties of the coatings without affecting the capability of obtaining passive layers for the protection of phosphatized carbon steel surface against corrosion, even after almost 20 days of immersion in NaCl aggressive solutions.

Explore further

Journal reference: Progress in Organic Coatings, Volume 128, March 2019, Pages 40-51

Provided by: Copyright © 2018 Elsevier B.V. or its licensors or contributors

Please follow us on LinkedIn and Twitter and subscribe to our website and receive notifications of new posts by email.

Advertisements

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

SUBSCRIBE TO OUR NEWSLETTER

You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

Paints and Coatings Expert will use the information you provide on this form to be in touch with you and to provide updates and marketing.
%d bloggers like this: