U.S.-Brazil Program Cooperative Research on Coating Flow Studies

0104714代书人美国-巴西计划奖将支持明尼苏达大学双城分校的L.E Scriven博士与工程师Marcio S。工程师保罗·卡瓦略Souza-Mendes和工程师Luis F.里约热内卢天主教大学（Pontifica Universidade Catolica do Rio de Janeiro）。 主要目的是通过实验记录，理论解释，并减少到计算机代码的过程分析，设计和优化两个现象：1。薄膜分裂的不稳定性和雾的产生限制了辊涂机的生产率，这在工业中很普遍。 2.在快速槽式涂布中，稳定、连贯的流动被破坏，形成一层薄薄的液体层;这种破坏限制了槽式涂布机的生产率，槽式涂布机是工业中常用的精密设备。在美国，液体涂布工艺是一种使能技术，占工业总产量的11%左右，E.C.在巴西等经济体的发展中，这一点越来越重要。 这项合作将联合收割机结合PUC研究人员在涂层流动，聚合物加工和流体力学实验技术方面的专业知识，以及明尼苏达州涂层工艺方面的专业知识，明尼苏达州是该领域的领先中心之一。

0104714ScrivenThis U.S.-Brazil Program award will support Dr. L.E Scriven of the University of Minnesota-Twin Cities in a research collaboration with Eng. Marcio S. Carvalho, Eng. Paulo R. Souza-Mendes, and Eng. Luis F. Azevedo of the Pontifica Universidade Catolica do Rio de Janeiro (PUC). The primary objective is to document experimentally, explain theoretically, and reduce to computer code for process analysis, design and optimization two phenomena: 1. The film-splitting instabilities and generation of mist that limit productivity of roll-coaters, which are widespread in industry. 2. The breakdown of steady, coherent flow in fast slot-coating to form a thin liquid layer; this breakdown limits productivity of slot coaters, a common precision device in industry.Liquid applied coating processes are an enabling technology in about 11% of total industrial production in the U.S., E.C. and Japan, and of increasing importance in advancing economies such as Brazil's. This collaboration will combine the expertise of researchers at PUC in coating flows, polymer processing, and experimental technique in fluid mechanics with the expertise in coating processes at Minnesota, one of the leading centers in the country in this area.