Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: May 20, 2025
Lubricants are widely used in the mechanical, electronic, and medical fields; however, traditional mineral oil-based lubricants cause environmental pollution. Therefore, search for renewable, nontoxic, environmentally friendly has become a current research focus. In this study, lotus root starch (LRS)/carbon nanotube (CNT) composite water-based lubricant was introduced into lubricant, frictional experiments were conducted using GCr15-SiC ball-on-disk tribopair. Additionally, by investigating formation mechanism of polarization electric field between friction pairs, enhancing effect particles CNTs on explored. Finally, lubrication reduction mechanisms starch/CNT elaborated detail. The results showed that LRS2.5%/0.075%CNT exhibited excellent superlubricity under medium- high-speed conditions (1200 1800 rpm, respectively), with coefficient as low 0.004-0.005. Furthermore, good robustness during 120 min experiment could enter stage within short running-in period (180 s). A study at interface revealed promoted mutually repulsive surfaces, significantly load-bearing capacity findings provide an important reference development green significant benefits application value.
Language: Английский