IEC 145 |
| Julie B. Zimmerman, Civil and Environmental Engineering, University of Michigan, 1351 Beal Avenue, 17 EWRE Bldg, Ann Arbor, MI 48109-2125, Kim F. Hayes, Department of Civil and Environmental Engineering, University of Michigan, 1351 Beal Ave, Ann Arbor, MI 48109-2125, and Steven J. Skerlos, Department of Mechanical Engineering, University of Michigan, 2250 GG Brown Lab, 2350 Hayward Street, Ann Arbor, MI 48109-2125. |
| The metalworking industry is one of the largest in the United States. Although, metalworking fluids (MWFs) are essential to this industry and therefore ubiquitous in manufacturing serving as coolants and lubricants, they have a significant environmental impact over their life cycle. The most obvious environmental improvement to MWF technology would be to improve the lifetime of the MWF while utilizing more environmentally friendly and less energy consuming materials without compromising current performance levels. Quantification of emulsion destabilization mechanisms leading to MWF deterioration provides the foundation for more robust metalworking fluid formulation design to prevent MWF failure and subsequent disposal. Emulsion destabilization can arise from changes in several different field conditions including water hardness and pH. The current investigation focuses on 1) the impact of emulsion destabilization on bioresistance and machining performance, 2) the impact of pH and hardness ion characteristics, such as cation charge on emulsion stability as measured by changes in particle size and zeta potential as well as the effect on machining performance, and 3) optimization of emulsifier systems to maintain emulsion stability under changing field conditions. |
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Joe Breen Student Poster Session in Green Chemistry (sponsored by Green Chemistry & Engineering Subdivision)
5:00 PM-7:00 PM, Tuesday, March 25, 2003 Convention Center -- Hall G, Poster
Sci-Mix
Division of Industrial and Engineering Chemistry |