Abstract:

Nowadays many different kinds of reinforcing filler are available in rubber industries, contributing to improve not only various physical properties, but also deducing cost of rubber products. Recently silica has been one of major fillers in rubber compounds of tires, specially contributed to improvement of rolling resistance of them leading to lower energy consumption of automobile driving eventually. A critical factor influencing the reinforcement is interfacial interaction between rubber and silica, in which both chemical and physical interactions are generated. In spite of its importance, it is not sufficient to define how to interact at the interface between silica and rubber exerted significantly an influence on not only rubber processing, but also physical properties of vulcanized products.
A novel approach was made to study the effect of the interfacial interaction on physical properties of rubber compounds, such as melt viscosity, maximum torque for cure, Payne effect, hysteresis, tensile strength, and also abrasion properties. In order to investigate the correlation between the interfacial interaction and the physical properties of silica-reinforced SBR rubber compound in the study, five different kinds of silica were selected in consideration of particle size or specific surface area, aggregate shape, porosity, and surface polarity.
 

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Biography:

Educational Background
• Ph. D., Polymer Science, University of Akron, USA
• M. Sc., Polymer Science, University of Akron, USA
• B. Eng., Chemical Engineering, Chonnam National University, Korea
Professional Record
2011-present: President, Citizens’ Coalition for Scientific Society, Korea
2010-present: Editorial Board Member, “Polymer Testing” Journal, Elsevier, England
2008-2009: Member of Presidential Advisory Council on Education, Science & Technology, Korea
2008-2009: Chairman, The Rubber Society of Korea, Korea
2006-2007: President, Deans’ Council of National University Graduate School of Industry and Technology, Korea
2006-2008: Dean, College of Engineering & Graduate School of Industry and Technology, Chonnam National University, Korea
2002-present: Member of Korean Industrial Standards Council & Head of Korean Delegates for ISO/TC45 (Rubber and Rubber Products)
1999-2000: Vice Chairman, Board of Trustees, Chonnam National University, Gwangju, Korea
1998-2001: Editor in Chief, “Elastomer” Journal, The Rubber Society of Korea, Korea
1998-1999: Chairman of Admission Committee, Chonnam National University, Korea
1997,1998: University of Leeds (UK), Visiting Professor
1993-1994: University of Washington (USA), Visiting Professor
Major Research Area
Correlation between polymer morphology and physical properties, such as strength, fatigue, abrasion, and thermal behavior of rubber composites reinforced by various nano-fillers
Honors and Awards
• 2002, 2004 Best Paper Awards, The Rubber Society of Korea, Korea
• 2009 Medal of Merit, President, Republic of Korea