Lubricating oil additive and preparation method thereof

The invention belongs to the technical field of lubricating oil and in particular discloses a lubricating oil additive and a preparation method thereof. The lubricating oil additive is prepared from components including graphene, a dispersant, an antioxidant, polyol and the like; the graphene is dispersed into a solution, and auxiliary components including the antioxidant and the like are added; the prepared additive is applied to the technical field of processing of lubricating oil; properties of the lubricating oil in the aspects of wear resistance, anti-oxidization performance, system stability and the like are remarkably improved, the lubricating oil can be stored for a long time and spoilage phenomena including layering, precipitation and the like are not liable to occur. 本发明属于润滑油技术领域，具体公开了种润滑油添加剂及其制备方法，包含石墨烯，分散剂，抗氧化剂，多元醇等组分，将石墨烯分散至溶液中，并添加有抗氧化剂等辅助成分，制备所得添加剂应用于润滑油加工技术领域，所得润滑油在耐磨性、抗氧化性及体系稳定性等方面的性能显著提高，长时间存储，不易出现分层、沉淀等腐败现象。