Molecular Tribology of Lubricants and Additives

边界润滑的基本原理将通过研究在极薄的聚合物边界润滑膜中工作的润滑机制来研究。使用的设备是改装的表面力显微镜。有效粘度、弹性和极限剪应力的测量将在从单分子层到整体的大范围薄膜厚度范围内进行，应变速率最高可达10*8/秒。被测试的分子包括一些直链和支链烷烃和全氟聚醚以及水介质。约束表面将包括云母、粘结润滑剂和金属化表面。

Fundamentals of boundary lubrication will be investigated by studying the lubricating mechanisms which operate in extremely thin polymeric boundary lubricant films. The equipment used is a modified surface force microscope. Measurements of effective viscosity and elasticity and of limiting shear stress will be made over a wide range of film thickness, from monomolecular layers to bulk, and for strain rates up to 10*8/sec. Molecules to be tested include a number of linear and branched alkanes and perfluoropolyethers as well as aqueous media. The confining surfaces will include mica, bonded lubricants and metallized surfaces.