The Behavior of Polymer Solutions in Concentrated Contacts: Immobile Surface Layer Formation
The Behavior of Polymer Solutions in Concentrated Contacts: Immobile Surface Layer Formation
复制标题
聚合物溶液在集中接触中的行为：固定表面层的形成
DOI：
10.1080/10402009408983332
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
H. Spikes
中科院分区：
文献类型：
--
作者：
P. Cann;H. Spikes
采用薄膜干涉法研究了低、中分子量聚异戊二烯在合成烃溶液中的成膜性能。研究表明，在轧制、集中接触中形成的润滑膜由两部分组成。在非常慢的速度下，聚合物形成一层厚度相当于聚合物分子两个旋转半径的不动膜。这种薄膜的厚度与速度无关，但当运动停止时，它会逐渐从接触处挤压出来。该膜可能代表两层聚合物，每层表面各有一层，可视为边界润滑膜。随着轧制速度的提高，在固定膜上形成一层常规弹流动膜。形成的不动膜与使用力平衡装置检测到的膜相似，并在文献的其他地方报道过。在新奥尔良举行的STLE/ASME摩擦学会议上，摩擦学家和润滑工程师协会发表了一篇论文。
The film-forming properties of solutions of low-to-medium molecular weight polyisoprenes in synthetic hydrocarbon have been studied using thin film interferometry. It has been shown that the lubricating films formed in rolling, concentrated contacts have two components. At very slow speeds, the polymer forms an immobile film of thickness equivalent to two radii of gyration of the polymer molecules. This film thickness is independent of speed but is gradually squeezed from the contact when motion is halted. The film is likely to represent two monolayers of polymer, one on each surface, and can be regarded as a boundary lubricating film. As the rolling speed is raised, a conventional elastohydrodynamic film is formed which is superimposed on the immobile film. The immobile films formed are similar to those detected using a force balance apparatus and reported elsewhere in the literature. Presented at a Society of Tribologists and Lubrication Engineers paper at the STLE/ASME Tribology Conference in New Orlea...