Polyphenol shelled nanoparticles lubricating composition and method

Abstract

A compound for enhancing lubrication includes nanoparticles having a size less than 100 nm; and a polyphenol derived agent coating an external surface of the nanoparticles for enhancing the lubrication.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Patent Application No. 62 / 881,551, filed on Aug. 1, 2019, entitled “LUBRICATING COMPOSITION CONTAINING POLYPHENOL SHELLED NANOPARTICLES FOR ENHANCED LUBRICATION PERFORMANCES,” the disclosure of which is incorporated herein by reference in its entirety.BACKGROUNDTechnical Field[0002]Embodiments of the subject matter disclosed herein generally relate to nanoparticles (NPs) that are coated with gallic acid derivatives for enhancing the lubrication property of a product, and more particularly, to 2-octyl dodecyl gallic acid ester (ODG) that alters the surface properties of NPs for better dispersion stability in a synthetic based oil as polyalphaolefin (PAO) or fully formulated Helix 10W-30 engine oil (HEO).Discussion of the Background[0003]The automotive industry needs to improve the fuel economy of the produced cars. A major factor contributing to the loss of energy in a given car is the m...

AI Technical Summary

Benefits of technology

This patent describes a compound that improves lubrication by using nanoparticles coated with a polyphenol derived agent. The nanoparticles are small particles with a size less than 100 nm. This compound can be used in oils to improve lubrication. The method for making the compound involves oxidizing the nanoparticles with an oxidizing agent, preparing a specific chemical, and adding it to the nanoparticles to coat them with the chemical. The technical effect of this patent is to enhance lubrication by providing a new compound that improves lubrication properties.

Problems solved by technology

A major factor contributing to the loss of energy in a given car is the mechanical friction that develops between the various parts of the car.

Moreover, the dispersion stability of hydrophilic NPs in non-polar synthetic oil, for instance, PAO, is of concern for the lubrication applications as the NPs tend to aggregate so that its surface energy can be reduced, which eventually results in quick sedimentation.

The phenol dimer derivatives were not designed to enhance the nanoparticles dispersions.

However, the existing surface modifying agents fail to provide just the right affinity to the NPs surface, to avoid the collapse of the structure or the failure to graft to the surface of the NPs.

Images