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首页> 外文会议>Leeds-Lyon Symposium on Tribology; 19990914-17; Leeds(GB) >Nanofriction of LB deposited phospholipid films
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Nanofriction of LB deposited phospholipid films

机译：LB沉积的磷脂膜的纳米摩擦

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摘要

An experimental study of boundary lubricants is described which is based on a surface force apparatus that had been modified to allow an oscillatory shear stress to be imposed. Phospholipid monolayers having different acyl chain lengths and a phospholipid bilayer were deposited onto the mica surfaces using the LB method at relatively high surface pressures in order to achieve close-packing. The storage moduli and loss tangents were measured as a function of the frequency and the contact pressure. They provide a means of monitoring the influence of the contact pressure on the molecular organisation of the lipid layers and also an understanding of the influence of this organisation on the sliding frictional characteristics of the layers.
机译：描述了基于表面力设备的边界润滑剂的实验研究，该设备已进行了改进，可以施加振荡剪切应力。使用LB法在较高的表面压力下将具有不同酰基链长度的磷脂单分子层和磷脂双分子层沉积在云母表面上，以实现紧密堆积。测量储能模量和损耗角正切值与频率和接触压力的关系。它们提供了一种方法来监控接触压力对脂质层分子结构的影响，并且可以了解这种结构对脂质层的滑动摩擦特性的影响。

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