Page 15 - IPCoSME 2021

1 INTERNATIONAL POSTGRADUATE CONFERENCE ON SCIENCE AND MARINE ENVIRONMENT 2021
st
(IPCoSME 2021)
“Environmental Sustainability Enhancement Through the Collaboration of Sciences”

RA-02

CORROSION AND MICROBIAL PROTECTION PERFORMANCE OF ROSIN
COATINGS WITH THE INCORPORATION OF Leucaena leucocephala

WAN MOHAMAD IKHMAL WAN MOHAMAD KAMARUZZAMAN AND MOHD
1
SABRI MOHD GHAZALI 1

1 Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala
Nerus, Terengganu, MALAYSIA

*Corresponding author email: mohdsabri@umt.edu.my

Abstract: Leucaena leucocephala leaves extract (LLE) was incorporated as an additive in a

rosin coating formulation. The extracts were evaluated by optical characterizations before
proceeded to the antimicrobial assessment with other specimens. The fabricated coatings were

applied onto the surface of stainless steel grade 316L and immersed in seawater for 50 days. A
batch of specimens was collected every 10 days and evaluated through electrochemical

impedance spectroscopy (EIS), potentiodynamic polarization and scanning electron

microscope with energy dispersive X-ray (SEM/EDX). The incorporation of 3 wt. % LLE into
the coating (P2) matrix was determined to have the best quality to prevent corrosion when

exposed to the corrosive environment.

Keywords: paint coatings; microbiological corrosion; EIS; failure analysis; stainless steel

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