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

摘要约翰·C.华盛顿贝格大学CTS-9424438 华盛顿大学的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。 它将主要用于获得直接测量的胶体力之间的颗粒和流体界面的函数的距离的方法，颗粒和界面组成等，这不是一个常规的应用程序的仪器，这种详细的测量尚未在文献中报道。 尽管如此，它们对作者实验室正在进行的研究至关重要，包括成功回收调色剂印刷纸的浮选和油助凝聚工艺以及水基涂料的设计。 该设施还将用于新的调查，有助于对“疏水相互作用”和流体表面内胶体颗粒的相互作用的基本理解。 最后，该设备将在固体颗粒和扩展表面形态和组成的检查中得到彻底的使用，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。

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.