Study Materials for MARINERS™

Naval numerical June 2019👇

According to Nishanth K Gopalan, leader of the team from the National Institute for Interdisciplinary Science & Technology, Thiruvananthapuram, mango leaves were selected for their anti-oxidant properties and their abundant content of polyphenols, which are known to resist corrosion. Tests performed on the compound, using electrochemical impedance spectroscopy and surface analysis using X-ray photoelectron spectroscopy, confirmed the formation of positive bioactive elements.

A team of Indian scientists has developed a unique, environmentally-friendly solution, to the age-old problem of corrosion. A compound synthesised from the leaf of the mango tree, that can protect ships from rusting, which is far more efficient than synthetic paints while also being non-toxic and environment-friendly. Globally, the corrosion of ships and its prevention costs an estimated $2.5 Trillion. Corrosion prevention was achieved through the formation of an insoluble organometallic complex, at the metal-electrolyte interface. The compound, made by using epoxy as a base and incorporating mango leaf extracts in a substrate of amorphous silica, achieved 99% inhibition of corrosion in commercial steel, when immersed in a saline medium. Ethanol was used to extract phytochemicals from dried mango leaves and various concentrations were then tested, for maximum corrosion resistance.