SGER: Development of Global Mixing Measures for the Comparison of Polymer Processing Equipment

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9315903 Bigio This is investigate the feasibility of developing global measures of mixing to be used in the evaluation of mixer designs and to compare the performance of various mixing configurations based on mixing performance. The quantitative evaluation of mixing extent is a critical problem in polymer and elastomer processing and the proposed approach, which attempts to develop a quantitative relationship between the global details of mixing and chaos theory, is a novel one. If an easily evaluated, global measure of mixing can be developed, the selection and optimization of the mixing aspects polymer and elastomer processing can be quantitatively evaluated. At present, materials are typically "overmixed" because of uncertainty in the mixing efficiency. Such practices are both time and energy inefficient.