公开(公告)号：US11685877B2

公开(公告)日：2023-06-27

申请号：US17421219

申请日：2020-07-21

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Qinglun Che ,  Jianjun Zhang ,  Sen Liang ,  Ning Cui ,  Binjiang Lv ,  Yang Xu ,  Xinghua Ma

IPC: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10N20/06 ,  C10N30/06

CPC classification number: C10M173/02 ,  C10M125/02 ,  C10M161/00 ,  C10M2201/02 ,  C10M2201/041 ,  C10M2201/062 ,  C10M2201/066 ,  C10M2217/046 ,  C10N2020/06 ,  C10N2030/06

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.