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

0104714Scriven美国-巴西项目奖将支持明尼苏达大学双子城分校的L.E Scriven博士与美国工程技术学院的研究合作。Marcio S. Carvalho, Eng保罗·r·索萨-门德斯和英格。Luis F. Azevedo来自里约热内卢天主教大学（PUC）。主要目标是记录实验，解释理论，并减少到计算机代码的过程分析，设计和优化两个现象：分膜不稳定和薄雾的产生限制了滚涂机的生产效率，这在工业中很普遍。2. 在快速槽状涂层中击穿稳定、连贯的流动，形成薄的液体层；这种故障限制了槽式涂布机的生产效率，槽式涂布机是工业上常见的精密设备。在美国、欧洲和日本，液体涂层工艺是一项使能技术，约占工业生产总量的11%，并且在巴西等发达经济体中越来越重要。此次合作将结合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，以及明尼苏达大学涂层工艺方面的专业知识，明尼苏达大学是美国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.