Title:
WATER-BASED LUBRICANT
Document Type and Number:
WIPO Patent Application WO/2014/189065
Kind Code:
A1
Abstract:
Provided is a water-based lubricant that is water-based in order to resolve the problem of flammability, and in which the need for additives such as surfactants can be minimized to reduce the cost associated with processing the waste liquid after use. A water-based lubricant in which graphene oxide, obtained by performing a separation process on graphite and separating the graphene oxide from the graphite, is dispersed in water. The separation process causes the separation by the graphite being mixed into an aqueous solution containing an oxidation agent, and caused to oxidize. The graphite is a fine powder having an average grain size of 100 μm or less and contains graphene oxide at a concentration of 0.1wt% or above. If the average grain size of the graphite is 50 μm or less, the graphene oxide is contained at a concentration of 0.01 wt% or above.
Inventors:
KINOSHITA HIROSHI (JP)
NISHINA YUTA (JP)
NISHINA YUTA (JP)
Application Number:
PCT/JP2014/063398
Publication Date:
November 27, 2014
Filing Date:
May 20, 2014
Export Citation:
Assignee:
UNIV OKAYAMA NAT UNIV CORP (JP)
International Classes:
C10M173/02; C10M125/02; C10N20/06; C10N30/04; C10N30/06; C10N40/22; C10N60/04
Foreign References:
| JP5098064B1 | 2012-12-12 |
Other References:
"Frictional behavior of oxide graphene nanosheets as water-base lubricant additive", APPLIED PHYSICS A, vol. 105, 29 October 2011 (2011-10-29), pages 827 - 832
"Graphene Oxide Oyobi Nanodiamond no Mizujunkatsu deno Tenka ni yoru Masatsu Gensho Tokusei", TRIBOLOGY CONFERENCE 2013 SPRING IN TOKYO YOKOSHU, 10 May 2013 (2013-05-10)
"A comparative study between graphene oxide and diamond nanoparticles as water-based lubricating additives", SCIENCE CHINA TECHNOLOGICAL SCIENCES, vol. 56, no. 1, 30 August 2012 (2012-08-30), pages 152 - 157
"Graphene Oxide Oyobi Nanodiamond no Mizujunkatsu deno Tenka ni yoru Masatsu Gensho Tokusei", TRIBOLOGY CONFERENCE 2013 SPRING IN TOKYO YOKOSHU, 10 May 2013 (2013-05-10)
"A comparative study between graphene oxide and diamond nanoparticles as water-based lubricating additives", SCIENCE CHINA TECHNOLOGICAL SCIENCES, vol. 56, no. 1, 30 August 2012 (2012-08-30), pages 152 - 157
Attorney, Agent or Firm:
YANO Juichiro (JP)
Juichiro Yano (JP)
Juichiro Yano (JP)
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