Exploring the Fudamentals and Applications of Pickering Emulsions

摘要提案编号：0625191主要研究者：戴，勒诺所属单位：得克萨斯理工大学提案标题：探索皮克林乳液的基础和应用知识优点：乳液在自然和工业过程中无处不在。常规乳液使用有机表面活性剂或聚合物作为稳定剂。尽管固体颗粒稳定的乳状液（Pickering乳状液）在原油回收、油分离和清洗以及废水处理中经常遇到，但是对该现象的了解很少，并且在近世纪中一直被忽视。该项目的重点是将研究和教育结合起来，以探索皮克林乳液的基本原理和应用为中心。利用激光扫描共聚焦显微镜研究了固体微粒在Pickering乳液中的自组装行为。特别是，散装固体颗粒浓度，颗粒尺寸，颗粒润湿性和体积粘度对自组装的影响将进行研究。此外，Pickering乳液将被用作一种新的模板，通过一步乳液聚合合成复合乳液。在所提出的工作中，将合成不同尺寸的复合胶乳以及含有具有可变尺寸和功能的无机粒子的复合胶乳。皮克林乳液提供了一个新的范例的胶体科学，和拟议的工作预计将有助于显着更好地了解皮克林乳液的形成。提出的新型一步皮克林乳液聚合增加了一个新的层面乳液聚合和合成的复合胶乳materials.Broader影响：研究和教育之间的整合将进行，以满足NSF的两个战略成果的目标：人和思想。随着对教育的坚定承诺，PI将在现有课程中建立与研究相关的开放式项目，促进本科生和研究生的研究，建立一个新的暑期项目，以扩大代表性不足的群体的参与，参加教师培训学院，并促进技术转让。皮克林乳液涉及“颗粒使用的创新概念”;预计这项工作将为广泛的实际应用提供新的机会。最后，但并非最不重要的是，这个项目也提供了一个独特的机会，以满足我们国家的需要，为一个尖端的研究与显着扩展的潜力，在21世纪世纪。

ABSTRACTProposal Number: 0625191Principal Investigator: Dai, LenoreAffiliation: Texas tech University Proposal Title: Exploring the Fundamentals and Applications of Pickering EmulsionsIntellectual Merit:Emulsions are ubiquitous in natural and industrial processes. Conventional emulsions use organic surfactants or polymers as stabilizers. Although solid particle stabilized emulsions (Pickering emulsions) are often encountered in the recovery of crude oil, oil separation and cleaning, and wastewater treatment, the phenomenon is poorly understood and has been neglected for nearly a century. This proposal focuses on integrating research and education centering on exploring the fundamentals and applications of Pickering emulsions. The self-assembly of solid microparticles in Pickering emulsion will be investigated using a laser scanning confocal microscope. In particular, the influence of bulk solid particle concentration, particle size, particle wettability, and bulk viscosity on self-assembly will be studied. In addition, Pickering emulsions will be used as a novel template to synthesize composite-latexes through a one-step emulsion polymerization. In the proposed work composite latexes of different sizes as well as composite-latexes containing inorganic particles with variable size and functionality will be synthesized. Pickering emulsions offer a new paradigm of colloidal science, and the proposed work is anticipated to contribute significantly to a better fundamental understanding of the formation of Pickering emulsions. The proposed novel one-step Pickering emulsion polymerization adds a new dimension to emulsion polymerization and the synthesis of composite-latex materials.Broader Impacts: The integration between research and education will be performed to meet the NSF's goals for two strategic outcomes: People and Ideas. With a strong commitment to education, the PI will establish research-related open-ended projects in existing courses, promote undergraduate and graduate research, establish a new summer program to broaden the participation of under-represented groups, participate in the Teacher Training Institute, and promote technology transfer. Pickering emulsions involve an "innovative concept for particle use"; the proposed work is anticipated to provide new opportunities for widespread practical applications. Last, but not least, this project also provides a unique opportunity to meet our nation's need for a cutting-edge research with the potential of significant expansion in the 21st century.