The present study addresses the dispersion stability and rheological analysis of canola oil-based nanolubricants. The stability of canola oil-based nanolubricant was examined under different surfactants and different particle to surfactant mass ratios for the period of 30 days. The experimental results demonstrated that nanolubricants with surfactant significantly improve the dispersion stability as compared to non-surfactant lubricant. However, on the basis of visual inspection and absorbance value, the highest stability was recorded for the sample containing TiO₂ to Triton X-100 mass ratio of 1:3. In addition, the influence of different concentrations of nanoparticles on the rheological behaviour of canola oil-based nanolubricants was also assessed. The outcomes showed that the nanolubricants exhibited Newtonian behaviour. The viscosity of nanolubricants increased with increase of nanoparticles concentration and decreased with temperature. Experimental values were compared with available viscosity models and a new correlation model was proposed with the margin of deviation of 1.38%.

本研究针对菜籽油基纳米润滑剂的分散稳定性和流变学分析。在不同的表面活性剂和不同的颗粒与表面活性剂质量比下，研究了菜籽油基纳米润滑剂的稳定性，为期30天。实验结果表明，与非表面活性剂润滑剂相比，具有表面活性剂的纳米润滑剂显着提高了分散稳定性。但是，根据目测和吸光度值，记录到的含TiO ₂样品的最高稳定性与Triton X-100的质量比为1：3。此外，还评估了不同浓度的纳米颗粒对菜籽油基纳米润滑剂流变行为的影响。结果表明，纳米润滑剂表现出牛顿行为。纳米润滑剂的粘度随纳米颗粒浓度的增加而增加，随温度降低而降低。将实验值与可用的粘度模型进行了比较，并提出了一种新的相关模型，其偏差幅度为1.38％。