SGER: Nanoparticle Tubeless Siphons

摘要CTS-0354542D。约瑟夫，明尼苏达大学这项建议是对纳米粒子分散在聚合物溶液中的影响进行探索性研究。我们将看到由于纳米颗粒的存在，无管虹吸管在拉力方面的增强。这种效果显然是为了创造一种新的材料，其中聚合物分子被由纳米颗粒桥联的有效(超级)聚合物分子取代。我们想要探索小颗粒大小对虹吸增强的影响。我们还建议探索碳纳米管对聚合物溶液流变性的影响。这些增强性能的测试将使用项目描述中描述的简单烧杯实验进行。智力优势：这项探索性研究非常适合研究分散在流体中的小颗粒的影响。这项研究的中心是创造流动诱导的微结构，以及一系列可能的应用。这项特别的研究指出，使用无管虹吸管作为真空吸尘器来覆盖受污染的底物，然后再进行清洁。更广泛的影响是技术和教育。技术影响是新材料不可避免地产生的、尚不为人所知的应用。教育方面有两个方面。这项研究将通过引入一组与纳米颗粒聚合物溶液流动相关的新现象来影响流体力学。第二个影响是对将在这个新兴领域接受教育的学生。在过去的12年里，PI在他的实验室雇佣了20多名本科生。这些本科生获得了真正的研究经验，他们对研究做出了真正的贡献。目前有五名本科生就业。它们得到了REU补编的支持。拟议的研究将在纳米科学和纳米技术的机会中影响这些学生和其他人。

AbstractCTS-0354542D. Joseph, University of MinnesotaThis proposal is to do exploratory study of the effects of nanoparticle dispersed in polymeric solutions. We will be looking at the enhancements in pulling power in tubeless siphons due to the nanoparticles. The effect is evidently to create a new material wherein the polymer molecule is replaced by an effective (super) polymer molecule bridged by nanoparticles. We want to explore the effects of the size of small particles on the enhancements of the siphon. We propose also to explore effects of carbon nanotubes onrheological properties of polymer solutions. The tests of these enhancements on properties will be done using simple beaker experiments described in the project description.Intellectual merit: This exploratory study fits perfectly well in the study of effects of small particles dispersed in fluids. Central to this study is the creation of flow-induced microstructure with a suite of possible applications. This particular study is pointed to the use of tubeless siphons as vacuum cleaners for covering, then cleaning, contaminated substrates.Broader impacts: The broader impacts are technological and educational. The technological impacts are the applications, not known yet, inevitably generated by new materials. The educational aspects are two-fold. The research will impact fluid mechanics by introducing a new set of phenomena associated with flows of nanoparticle laden polymeric solutions. The second impact is on students who will get an education in this emerging field. The PI has employed over 20 undergraduates in his laboratory over the past 12 years. These undergraduates get real research experiences and they make real contributions to research. At present five undergraduates are employed. They are supported under REU supplement. The proposed research will impact these students, and the others, in the opportunities of nanoscience and nanotechnology.