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Förslaget inkom 2010-09-29

Film forming environmentally benign corrosion inhibitions

OBS! ANSÖKNINGSTIDEN FÖR DETTA EXJOBB HAR LÖPT UT.
Diploma work at Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), and YKI, Institute of Surface Chemistry in collaboration with AkzoNobel Surface Chemistry.

Aim
Development of novel environmentally benign corrosion inhibitors and benchmark them towards current solutions.

Background
Metallic materials are one of the cornerstones of our modern society. Metal corrosion is a natural degradation process that cannot be stopped, but must be controlled in a satisfactory way, e.g., though corrosion inhibitors or by a protective surface layer/coating. Corrosion inhibitors are used either directly in aqueous systems to reduce the corrosion rate, or in a surface coating to obtain an enhanced corrosion protection. Today, because of environmental impact and health risk issues, many of the traditionally used corrosion inhibitors (chromate and heavy metals, amines and imidazoline, etc.) and coating components have to be phased out, and there is an urgent need to develop new corrosion control strategies that are “green”, safe, smart and multifunctional.
To optimize such new corrosion control strategies requires a deep fundamental understanding of the interfacial layers and processes. Research activities are being carried out within the SSF program “Microstructure, Corrosion and Friction Control” at KTH on new, green, film-forming corrosion inhibitors.
The research program specifically aims at increasing the fundamental understanding of the inhibition properties and to address scientific problems that have to be overcome in order to develop the general applicability of the concepts. Within this work, it is necessary to benchmark the new inhibitors with traditional ones.

Work plan
By advanced electrochemical measurements for carbon steel in a salt solution with sea water salinity, evaluate corrosion inhibition efficiency of the inhibitors, and to investigate the film forming process and its influence on the corrosion inhibition effect, aiming at ranking of the corrosion inhibitors tested. The electrochemical measurements include linear polarization resistance (LPR) measurement, electrochemical impedance spectroscopy (EIS).
In addition to the experimental study of the corrosion inhibitors, the diploma work will also consist of a literature survey, and writing of the diploma thesis. The project will start as soon as possible.

Contact detail
Prof. Jinshan Pan will be the scientific supervisor and the examiner for the diploma thesis.
Tel: 08/790 6739, [email protected]

YKI, Institute for Surface Chemistry is the internationally leading industrial research institute in applied surface and colloid chemistry. YKI’s clients come from many industrial sectors e.g. pharmaceuticals, biotechnology, food, industrial chemicals, household products, engineering, pulp and paper, coatings, ceramics, adhesives, paint, ink and printing. The 40 member companies in YKI include world leaders in these industrial sectors. 50 % of our industrial partners are based outside Sweden.
YKI has around 65 employees and is located in a research-intensive area on the campus of the Royal Institute of Technology (KTH) in Stockholm. YKI is a member of the SP-Group. For further information please visit our website www.yki.se


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