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Engineering Research Equipment: Measurement of Colloid Forces in Vicinity of a Fluid Interface Using Atomic Force Microscopy

工程研究设备：使用原子力显微镜测量流体界面附近的胶体力

基本信息

批准号：
9424438
负责人：
John Berg
金额：
$ 5万
依托单位：
University of Washington
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1995
资助国家：
美国
起止时间：
1995-09-15 至 1996-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9424438&HistoricalAwards=false
关键词：
Engineering Research Equipment Measurement Colloid

项目摘要

ABSTRACT John C. Berg University of Washington CTS-9424438 The Department of Chemical Engineering at the University of Washington proposes herein in acquisition of a scanning probe microscopy facility, including the capability of atomic force microscopy (AFM). It would be used primarily for obtaining direct measurements of colloidal forces between particles and fluid interfaces as a function of the distance of approach, particle and interface composition, etc. This is not a routine application of the instrumentation, and detailed measurements of this kind have not yet been reported in the literature. They are nonetheless vital to ongoing investigations in the author's laboratory, including flotation and oil-assisted agglomeration processes for the successful recycling of toner-printed papers and the design of water-based coating. The facility would also be used in new investigations contributing to fundamental understanding of the "hydrophobic interaction" and the interaction of colloid particles within a fluid surface. Finally, the facility would find exhaustive use in the examination of solid particle and extended-surface morphology and composition, critical not only to much of the work in the author's laboratory, but also to the work of other investigators at the author's laboratory, but also to the work of other investigators at the author's institution.

华盛顿大学化学工程系在此提出收购扫描探针显微镜设备，包括原子力显微镜（AFM）的能力。它将主要用于直接测量粒子和流体界面之间的胶体力，作为接近距离、粒子和界面组成等的函数。这并不是该仪器的常规应用，文献中尚未报道此类详细测量。尽管如此，它们对作者实验室正在进行的研究至关重要，包括浮选和油辅助团聚过程，以成功回收碳粉印刷纸和水性涂料的设计。该设施还将用于新的研究，有助于对“疏水相互作用”和流体表面内胶体颗粒相互作用的基本理解。最后，该设备将在固体颗粒和延伸表面形态和组成的检查中找到详尽的用途，这不仅对作者实验室的大部分工作至关重要，而且对作者实验室的其他研究人员的工作也至关重要，而且对作者所在机构的其他研究人员的工作也至关重要。