SGER: Nanoparticle Tubeless Siphons

abstractcts - 0354542 d。本课题拟对纳米粒子分散在聚合物溶液中的效果进行探索性研究。我们将研究纳米粒子对无管虹吸管拉力的增强作用。其效果显然是创造了一种新的材料，其中聚合物分子被由纳米颗粒桥接的有效（超级）聚合物分子所取代。我们想要探索小颗粒的大小对虹吸管增强效果的影响。我们还建议探讨碳纳米管对聚合物溶液流变特性的影响。这些性能增强的测试将使用项目描述中描述的简单烧杯实验来完成。智力优势：本探索性研究非常适合研究流体中分散的小颗粒的影响。本研究的核心是创建具有一系列可能应用的流动诱导微观结构。这项特别的研究指出，使用无管虹吸管作为真空吸尘器，覆盖，然后清洁，污染的基材。更广泛的影响：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应用，目前尚不清楚。教育方面是双重的。这项研究将通过引入一组与纳米粒子负载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，并为研究做出了真正的贡献。目前有5名本科生在岗。它们在REU补编下得到支助。拟议的研究将在纳米科学和纳米技术的机会方面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.