Nano carbon lubricating additive
Title：
Nano carbon lubricating additive
Application Number：
 200410097197
Application Date：
 2004/12/14
Announcement Date：
 2005/06/29
Pub. Date：
 2007/03/14
Publication Number：
 1632081
Announcement Number：
 1304539
Grant Date：
 2007-3-14
Granted Pub. Date：
 2007-3-14
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C10M 125/02, C09C 1/44, C09C 3/00
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Yao Kefu
Key Words：
 Nano carbon, lubricating additive
Abstract：
 Disclosed is a nm carbon lubricity additive belongs to preparing technique of lubricant material, which is made by the following steps: make use of the effect high temperature electric arc of graphite (nm carbon ball ) pole in the discharge course of the graphite (nm carbon ball ) electric arc discharge method to generate carbon graphite (nm carbon ball ), then assemble them to do surface procession and supersonic dispersion, getting the carbon nm ball with diameter of 5-30 nm. Proved by experiment that after adding into carbon nm lubricity additive, its wear resistance is advanced remarkably, the friction coefficient is decreased by more than 60% and the friction coefficient of surface is notably advanced. Besides, with outstanding biological compatibility, it can be used as lubricity additive of elements of machine, biological and medical equipment. Therefore, the invention has significant practical value and potential application in biological and medical equipment field.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
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