Ultrafine silica particles with diameters from 0.2Lm to nanometer (1-100nm) have not only the properties of ordinary silica, but also some unique properties, such as surface effect, volume effect, small size effect, quantum size effect and macro quantum tunnel effect. These characteristics make it widely used in the fields of rubber, plastics, coatings, adhesives, biomedicine and catalysts. In addition, because ultra-fine silica can work under heavy load, low speed and high temperature, it is also a high-performance, environment-friendly lubricating oil additive with great development potential. However, the research on ultra-fine silica as a lubricating oil additive is still in the experimental stage.


Due to the strong hydrophilicity, large specific surface area and high surface energy of the superfine white carbon black surface, it is easy to add it to the polymer matrix, thus affecting the mechanical, optical and electrical properties of the composite. The surface modification of the superfine white carbon black can improve its shortcomings of easy aggregation and poor dispersion, so that it can obtain better dispersion and compatibility in the organism. According to the existing research, the modified white carbon black has excellent friction performance, which can significantly improve the anti friction and extreme pressure wear resistance of the lubricant. After modification, it can make its surface functional, so as to improve the comprehensive performance of the material and better apply it to the improvement of material quality.