Invention Grant
- Patent Title: Super-lubricity water lubricating additive, super-lubricity water lubricant, preparation method and application
-
Application No.: US17421219Application Date: 2020-07-21
-
Publication No.: US11685877B2Publication Date: 2023-06-27
- Inventor: Qinglun Che , Jianjun Zhang , Sen Liang , Ning Cui , Binjiang Lv , Yang Xu , Xinghua Ma
- Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
- Applicant Address: CN Shandong
- Assignee: QINGDAO UNIVERSITY OF TECHNOLOGY
- Current Assignee: QINGDAO UNIVERSITY OF TECHNOLOGY
- Current Assignee Address: CN Qingdao
- Agency: Oliff PLC
- Priority: CN 2010498505.0 2020.06.04
- International Application: PCT/CN2020/103349 2020.07.21
- International Announcement: WO2021/243824A 2021.12.09
- Date entered country: 2021-07-07
- Main IPC: C10M173/02
- IPC: C10M173/02 ; C10M125/02 ; C10M161/00 ; C10N20/06 ; C10N30/06

Abstract:
A super-lubricity water lubricating additive, a super-lubricity water lubricant, a preparation method and application, wherein the additive is of a hollow spherical shell structure which includes at least one layer of spherical shell; the spherical shell sequentially includes a first polydopamine layer, a nanoparticle layer, a second polydopamine layer and an oxidized graphene layer from inside to outside, or a first polydopamine layer, a nanoparticle layer, a second polydopamine layer, a graphene layer and a third polydopamine layer from inside to outside; and nanoparticles of the nanoparticle layer are nano diamond, nano molybdenum disulfide or nano tungsten disulfide. The additive is prepared into a uniform aqueous solution to obtain the super-lubricity water lubricant. The additive can be easily adsorbed on a dual surface, and the nanoparticles released in a friction process cooperate with spherical oxidized graphene or graphene to form rolling friction so as to reduce frictional abrasion.
Public/Granted literature
Information query