Collaborative Research: Enabling Multi-Functional 3D Composite Responsive Separation (3D-CoReS) Membranes with Advanced Materials and Innovative Manufacturing

合作研究：利用先进材料和创新制造实现多功能 3D 复合响应分离 (3D-CoReS) 膜

• 批准号: 2128038
• 负责人: Isabel Escobar
• 金额: $ 22.42万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-11-01 至 2024-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2128038&HistoricalAwards=false
• 关键词: Collaborative; Research; Enabling; Multi; Functional

The world’s drinking water is becoming increasingly unsafe through the growing concentrations of current contaminants and introduction of new contaminants, which kills or sickens millions of people per year. Membranes have played an increasingly important role in water treatment, food packaging and pharmaceutical industries. Current manufacturing practice leads to membranes that tend to have a single function such as being restricted to the removal of contaminants at the expense of performance. New advanced manufacturing approaches are pursued under this grant which avoid the cumbersome multi-step subtractive approaches and non-scalable trial-and-error approaches, both of which are wasteful and result in significant losses in time, cost, materials, and lead to the production of undesired waste products. Multi-layer membranes, which contain several individual functional layers, formed in a single manufacturing step pursued here could reduce cost and provide greater access to these applications requiring these advanced membranes. This multidisciplinary work provides an education and mentoring platform to provide students from a broad range of communities with a wholistic view of how to address critical problems impacting clean water and advance technology in a sustainable way.The goal of this project is to develop a hybrid advanced manufacturing approach to fabricate multifunctional 3D polymeric nanocomposite membranes. These 3D membranes, composed of two different materials across web and a third material through the thickness, will enable temperature-responsiveness and anti-microbial behaviors allowing for multifunctional absorption and desorption of contaminants along with biofouling control. The critical knowledge gap of this research addresses the lack of a technique to continuously coat multiple liquids simultaneously from solution into 3D thin films based on traditional continuous coating techniques amenable for roll-to-roll. Here, temperature-responsive polymers and silver nanoparticles will be mixed with polymers in bioderived solvents to produce solutions, which will be cast using a hybrid continuous coating approach that allows one-step fabrication of the membranes. This research will provide the framework for investigating the feasibility of the multifunctional 3D polymeric nanocomposite membranes with the potential for opening pathways for advanced continuous coating technologies that can lead to more complex materials enable by the heterogeneity of the structures, which otherwise would be difficult to fabricate. An understanding of whether process-structure-property relationships of the materials developed using processes will be elucidated to maintain key performance properties that have been realized with the materials independently.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

由于现有污染物浓度的不断增加和新污染物的引入，世界饮用水变得越来越不安全，每年有数百万人因此死亡或患病。膜在水处理、食品包装和制药工业中发挥着越来越重要的作用。目前的制造实践导致膜倾向于具有单一功能，例如以性能为代价限于去除污染物。新的先进制造方法在该资助下进行，其避免了繁琐的多步减法方法和不可扩展的试错法，这两种方法都是浪费的，并导致时间、成本、材料的重大损失，并导致产生不期望的废品。多层膜，其中包含几个单独的功能层，形成在一个单一的制造步骤，在这里追求可以降低成本，并提供更多的访问这些应用需要这些先进的膜。 这个多学科的工作提供了一个教育和指导平台，为来自广泛社区的学生提供如何解决影响清洁水的关键问题的整体观点，并以可持续的方式推进技术。该项目的目标是开发一种混合先进制造方法来制造多功能3D聚合物纳米复合膜。这些3D膜由两种不同的材料横跨网和第三种材料贯穿厚度组成，将实现温度响应性和抗微生物行为，从而允许污染物的多功能吸收和解吸沿着生物污垢控制。这项研究的关键知识差距解决了缺乏一种技术，以连续涂布多种液体同时从溶液成3D薄膜的基础上，传统的连续涂布技术适合卷到卷。在这里，温度响应性聚合物和银纳米颗粒将与生物衍生溶剂中的聚合物混合以产生溶液，该溶液将使用混合连续涂覆方法进行浇铸，该方法允许膜的一步制造。这项研究将为研究多功能3D聚合物纳米复合膜的可行性提供框架，该膜有可能为先进的连续涂层技术开辟途径，从而通过结构的异质性获得更复杂的材料，否则将难以制造。理解使用工艺开发的材料的工艺-结构-性能关系是否将被阐明，以保持材料独立实现的关键性能特性。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。