The Design of Boundary Film-Forming PMA Viscosity Modifiers
The Design of Boundary Film-Forming PMA Viscosity Modifiers
复制标题
边界成膜PMA粘度调节剂的设计
DOI：
10.1080/05698190600614833
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Spikes
中科院分区：
文献类型：
--
作者：
M. Müller;K. Topolovec;A. Dardin;H. Spikes
先前的研究表明，一些粘度调节剂添加剂能够从油溶液中吸附到金属表面上，形成厚厚的粘性边界膜。这些薄膜增强了低速和高温条件下润滑膜的形成，从而显着减少摩擦。本文描述了对这一现象的系统研究，该研究利用了聚甲基丙烯酸酯 (PMA) 化学的多功能性。采用受控自由基聚合技术合成了具有一系列不同官能度、分子量和结构的分散剂聚甲基丙烯酸酯。使用光学干涉测量和摩擦与速度测量来探索这些特征中的每一个对边界膜形成和摩擦的影响。根据这些结果，已经制定了设计具有最佳边界润滑和减摩性能的 PMA 的指南。塞尔达·甘塞尔 (Selda Gunsel) 领导的审核
Previous research has shown that some viscosity modifier additives are able to adsorb from oil solution on to metal surfaces to produce thick, viscous boundary films. These films enhance lubricant film formation in slow-speed and high temperature conditions and thus produce a significant reduction in friction. This article describes a systematic study of this phenomenon, which makes use of the versatile nature of polymethacrylate (PMA) chemistry. Dispersant polymethacrylates with a range of different functionalities, molecular weights, and architectures have been synthesized using controlled radical polymerization techniques. The influence of each of these features on boundary film formation and friction has been explored using optical interferometry and friction versus speed measurement. From the results, guidelines have been developed for designing PMAs having optimal boundary lubricating and, thus, friction-reducing properties. Review led by Selda Gunsel