This study investigates the development of novel montmorillonite/castor oil blends to formulate sustainable lubricating greases to promote the replacement of petrochemicals industry-derived materials by substances obtained from renewable sources. Specifically, the effect of the thickener concentration on the rheological, chemical, thermal, tribological properties, and atomic force microscopy (AFM) microstructure of these systems were studied. The results showed that the C20A nanoclay content could be used to modulate the viscosity values, the linear viscoelastic functions, and tribological properties of these montmorillonite dispersions. In general, these gel-like dispersions exhibited remarkable lubricant properties; the samples showed values of the friction coefficient and wear scars similar or lower than those obtained with model bentonite grease.

这项研究调查了新型蒙脱石/蓖麻油共混物的开发，以配制可持续的润滑脂，以促进石油化工行业衍生材料被可再生资源获得的替代。具体而言，研究了增稠剂浓度对这些系统的流变，化学，热，摩擦学性质和原子力显微镜（AFM）微观结构的影响。结果表明，C20A纳米粘土含量可用于调节这些蒙脱土分散体的粘度值，线性粘弹性函数和摩擦学性能。通常，这些凝胶状分散体表现出显着的润滑性能。