Modification of Gunung Kidul Natural Zeolite and Its Application in the Corrosion Rate Reduction of Steel Plates in Acid Media

Author:

Khafid Mohammad Abdul,Wicaksono Aditya Pandu,Andita Firstyananda Wahyu,Nurdina Asifa Ihya

Abstract

Abstract The use of metals in the industry plays a very important role, where nearly 90% of industrial equipment comes from metallic materials. Corrosion is an electrochemical process between metals with its environment that can damage the metal quality. Gunung Kidul natural zeolite can be modified into a mixture of alkyd paint as a coating material to reduce the corrosion rate of steel plates effectively. In this research, the zeolite was activated by NaOH 1 N for 120 minutes. The zeolite was characterised using Surface Area Analyzer (SAA) and nitrogen adsorption analysis to investigate the surface area of zeolite by Brunauer-Emmet-Teller (BET) modelling. The lining was done by coating the steel plates by alkyd-zeolite paints and inserted into a 100 mL H2SO4 1N, 2N, and 3N for 20 days. The results of this study showed that the corrosion rate of steel plate was 0.1374 miles/year (uncoated), 0.0407 miles/year (coated by alkyd paint), and 0.0095 miles/year (coated by alkyd paint-zeolite). Using activated zeolite as a mixture of alkyd paint is environmentally friendly and effective in lowering the corrosion rate of mild steel plates.

Publisher

IOP Publishing

Subject

General Medicine

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