Events

Seminar: Surface Chemistry Techniques and Applications

Date: 25 May 2012 - 25 May 2012

Venue: SIMTech Training Room

Introduction
Sponsored by Intermass Fischer Asia Pte Ltd, this seminar is designed to raise greater awareness of the latest development in surface science characterisation techniques and new application areas of surface technologies. Participants who are engaged in research and development of products in surface science and technologies will find this seminar very useful. The speakers will discuss the new techniques in surface characterisation and design of materials and surface structures for obtaining special surface functions.

About the Speakers & Synopses
Dr Martin Kirchner studied Chemistry at the Friedrich-Schiller University of Jena Thüringen, Germany, majoring in Surface Science, and Chemical Engineering at the Ecole National Supérieur de Chemie de Montpellier, Hérault/France before proceeding to perform his Diploma Work at the Max-Planck-Institute for Chemical Physics in Dresden Saxony, Germany as a research fellow– with Chemical Metallurgy as his primary research. He obtained his PhD at the Technical University of Dresden, Saxony, Germany in 2006. Since then, Dr. Kirchner has been with KRÜSS as a specialist in application, service and customer support.Dr Kirchner is active in heading regular applications and technical training courses, does public speaking and technical writing in different languages (German and English).  His role in customer support also serves as a facilitator between the research and applications support departments within KRÜSS for intense collaboration with customers for the optimisation of new analytical methods.

Synopsis
Surface Chemistry Techniques and Applications
Surface chemistry is a powerful tool for solving cleaning, spraying, coating, wetting, bonding, emulsification and foaming problems amongst others.  Attendees will develop an understanding on how and where to use these tools. The seminar reviews the basic theory of surface and interfacial chemistry, the techniques of influencing surface energy through design of coating materials and surface structures, and then focuses on how instrument measuring techniques can be properly applied to solve practical industrial problems.

Dr Linda Wu is a Senior Scientist in the Surface Technology Group of SIMTech. Her research fields cover chemical formulations, surface treatments and multi-functional coatings for different materials, nanoparticles syntheses and their surface modifications for biomedical applications, self-assembled nanostructures for surface energy control and optical applications, roll-to-roll coating technology for functional films, and materials characterisations. She holds a Bachelor degree and a Master degree in Materials Science from Tsing-Hua University, China, an MBA from University of South Australia, and PhD from Nanyang Technological University. She joined SIMTech in 2000 and has been the principal researcher and project leader for several research projects and industrial projects.

Synopsis
Influencing Surface Energy by Coating Material and Surface Morphology Modification
Surface energy of solid has direct correlation with the chemical composition of the surface material and the surface morphology. In this talk, I shall introduce the famous lotus leaf effect and a few theoretical models describing the influences of surface materials (intrinsic contact angle) and surface morphology on the apparent contact angle. Several coating technologies and surface texturing techniques will be presented, whereby superhydrophobic and hydrophobic properties are achieved.    

Mr Tomas Homola obtained his Bachelor degree and a
Master degree from Faculty of Mathematics, Physics and Informatics, Comenius University, Slovakia, majoring in Plasma Physics. He is currently an A*Star scholar in SIMTech and is in the final year of his PhD study. He has been doing research on plasma technologies for several years. He won several Youth Grants in Czech Republic and Slovakia due to his outstanding achievements in his study.

Synopsis
Plasma Technologies for Surface Treatment of Materials
Plasma technologies are relatively fast, clean and environmentally friendly in comparison to the traditional chemical methods for surface treatments of various materials. The basic physical theory of plasma for surface treatment will be introduced, and the atmospheric pressure plasma for treatment of several different substrates will be presented. The influences of plasma treatment parameters and used gas on the surface energy of treated material and the surface chemical conditions will be described.   

Programme
10.30am      Registration
11.00am      Welcome
11.10am      Introduction  to Surface and Interfacial Tension of Solids and Liquids (Dr Martin Kirchner, Krüss GmbH, Germany)
                   - Surface Tension Theory and Application Fields
                   - Measurement Techniques
11.55am      Influencing Surface Energy by Coating Material and Surface Morphology Modification (Dr Linda Wu, SIMTech)
12.20pm      Introduction to Contact Angle and Wetting Methods (Dr Martin Kirchner)
                   - Sessile Drop & Top-view method
12.50pm      Lunch and networking
2.00pm        Practical Consideration of Contact Angle Measurements
                   Contact Angle Measurement to Characterise Cleaning and Dynamic Wetting
3.00pm        Intermission
3.15pm        Plasma Technologiesfor Surface Treatment of Materials (Mr Tomas Homola, Comenius University, Slovakia)
3.45pm        From Contact Angle to Surface Free Energy 
                   - How to Characterise Adhesion of Coatings and Glues
4.30pm        Q&A
5.00pm        End of Seminar

Who Should Attend
Recommended for chemists, engineers, university students, and other scientists engaged in research and development on detergents, cleaners, inks, coatings, paints, emulsions, foams, pharmaceutics, costmetics, surface modification and other areas in surface chemistry.

Registration
Registration for this seminar is free of charge. Seats are available on a first-come, first-served basis.

Contact Us
For technical enquiries: Dr Linda Wu, Email: ylwu@SIMTech.a-star.edu.sg
For general enquiries: Alice Koh, Email: kohth@scei.a-star.edu.sg