With the rapid development of nanotechnology, the lubrication excellence of nano-lubricant additives is becoming more and more prominent:
1. Nanomaterials can form a thin film with low friction coefficient on the friction surface, which can fill and repair the friction surface to a certain extent.
2, nanoparticles are small in size, approximately spherical, can roll freely, play the role of micro bearings.
3. Polishing and strengthening the friction surface to support the load, improve the bearing capacity and reduce the friction coefficient.
4, nanoparticles have high diffusion ability, easy to form on the metal surface with excellent anti-wear permeability layer or diffusion layer, the surface appears in situ friction chemistry principle.
5. Nanomaterials are environmentally friendly.


Here, we mainly focus on the application of nano - vapor silica as lubricant additive.
Surface structure of gaseous silicon dioxide
The surface of gaseous silica contains siloxane groups, isolated undisturbed free hydroxyl groups and hydroxyl groups forming hydrogen bonds, showing strong water absorption.
Si-0h group on the surface of vapor phase silica has strong activity and is easy to bond with surrounding ions.
When it is used as a thickener, its thickening ability is related to its particle size.
The smaller the particle size is, the larger the specific surface area is, the stronger the thickening ability is, and the less the dosage is.