Zhang Houjie, Chen Youming, Chu Aimin, Hu Hairong, Zhao Yuping
Health Maintenance for Mechanical Equipment Key Lab of Hunan Province, Hunan University of Science and Technology, Xiangtan 411201, China.
School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
Materials (Basel). 2023 Oct 6;16(19):6579. doi: 10.3390/ma16196579.
The controllable character of the melting point of deep eutectic solvents (DESs) makes it easy to realize lubricated state transitions and produce excellent lubricating properties during friction. In this work, a series of novel imidazole-based DESs were synthesized to present a room-temperature solid state by shifting its eutectic point. Tribological test results show that the wear volume of these DESs decreases as the alkyl chains of the hydrogen bond donors increase. A proper deviation of the eutectic point in DESs produces stable lubricating properties. The present work provides a novel and simple method to prepare solid lubricants and enriches the use of DESs as lubricants. Simultaneously, the method expected to replace the use of conventional cutting fluids.
深共熔溶剂（DESs）熔点的可控特性使得在摩擦过程中易于实现润滑状态转变并产生优异的润滑性能。在本工作中，通过改变其共晶点合成了一系列新型咪唑基DESs，使其呈现室温固态。摩擦学测试结果表明，随着氢键供体烷基链的增加，这些DESs的磨损体积减小。DESs中共晶点的适当偏离产生稳定的润滑性能。本工作提供了一种制备固体润滑剂的新颖且简单的方法，并丰富了DESs作为润滑剂的用途。同时，该方法有望取代传统切削液的使用。
