Issue 34, 2016, Issue in Progress

Enhanced corrosion resistance of polybenzoxazine coatings by epoxy incorporation

Abstract

Polybenzoxazine/epoxy composite coating has been developed on mild steel (MS) substrates by a thermal curing method. The reaction between two components was characterized by Fourier transform infrared spectroscopy (FTIR). The effects of incorporating epoxy on the corrosion resistance of coated steel were investigated by open circuit potential, potentiodynamic polarization, and electrochemical impedance spectroscopy, respectively. The resulted composite coated samples exhibit significant enhancement on the corrosion resistance of MS with the corrosion current reduced by more than one order of magnitude, and the enhancement is improved with an increase in the epoxy content, which benefits from the dual crosslinking network of the composite coating through the incorporation of epoxy. In addition to enhancing the coating barrier performance, all coated samples are substantially hydrophobic with a contact angle of above 100° before and even after the polarization measurements.

Graphical abstract: Enhanced corrosion resistance of polybenzoxazine coatings by epoxy incorporation

Article information

Article type
Paper
Submitted
25 Jan 2016
Accepted
29 Feb 2016
First published
01 Mar 2016

RSC Adv., 2016,6, 28428-28434

Enhanced corrosion resistance of polybenzoxazine coatings by epoxy incorporation

C. Zhou, J. Lin, X. Lu and Z. Xin, RSC Adv., 2016, 6, 28428 DOI: 10.1039/C6RA02215D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements