WO2005060648A3 - Lubricants with enhanced thermal conductivity containing nanomaterial - Google Patents

Lubricants with enhanced thermal conductivity containing nanomaterial Download PDF

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Publication number
WO2005060648A3
WO2005060648A3 PCT/US2004/042109 US2004042109W WO2005060648A3 WO 2005060648 A3 WO2005060648 A3 WO 2005060648A3 US 2004042109 W US2004042109 W US 2004042109W WO 2005060648 A3 WO2005060648 A3 WO 2005060648A3
Authority
WO
WIPO (PCT)
Prior art keywords
thermal conductivity
graphite
nanomaterial
viscosity
fluid
Prior art date
Application number
PCT/US2004/042109
Other languages
French (fr)
Other versions
WO2005060648A2 (en
Inventor
Zhiqiang Zhang
Gefei Wu
Frances E Lockwood
Original Assignee
Ashland Inc
Zhiqiang Zhang
Gefei Wu
Frances E Lockwood
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ashland Inc, Zhiqiang Zhang, Gefei Wu, Frances E Lockwood filed Critical Ashland Inc
Publication of WO2005060648A2 publication Critical patent/WO2005060648A2/en
Publication of WO2005060648A3 publication Critical patent/WO2005060648A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/02—Carbon; Graphite
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • C10N2040/042—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives for automatic transmissions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Abstract

A lubricant composition having an enhanced thermal conductivity, up to 80% greater than its conventional analogues, and methods of preparation for these fluids are identified. One preferred composition contains a base oil, nanomaterial, and a dispersing agent or surfactant for the purpose of stabilizing the nanomaterial. One preferred nanomaterial is a high thermal conductivity graphite, exceeding 80W/m-K in thermal conductivity. The graphite is ground, milled, or naturally prepared to obtain a mean particle size less than 500 nm (nanometer) in diameter, and preferably less than 100 nm, and most preferably less than 50 nm. The graphite is dispersed in the fluid by one or more of various methods, including ultrasonication, milling, and chemical dispersion. Carbon nanostructures such as nanotubes, nanofibrils, and nanoparticles are another type of graphitic structure useful in the present invention. Other high thermal conductivity carbon materials are also acceptable. To confer long-term stability, the use of one or more chemical dispersants or surfactants is useful. The thermal conductivity enhancement, compared to the fluid without graphite, is proportional to the amount of nanomaterials added. The graphite nanomaterials contribute to the overall fluid viscosity, partly or completely eliminating the need for viscosity index improvers and providing a very high viscosity index. Particle size and dispersing chemistry is controlled to get the desired combination of viscosity and thermal conductivity increase from the base oil while controlling the amount of temporary viscosity loss in shear fields. The resulting fluids have unique properties due to the high thermal conductivity and high viscosity index of the suspended particles, as well as their small size.
PCT/US2004/042109 2003-12-16 2004-12-16 Lubricants with enhanced thermal conductivity containing nanomaterial WO2005060648A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73773103A 2003-12-16 2003-12-16
US10/737,731 2003-12-16

Publications (2)

Publication Number Publication Date
WO2005060648A2 WO2005060648A2 (en) 2005-07-07
WO2005060648A3 true WO2005060648A3 (en) 2006-10-05

Family

ID=34710484

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/042109 WO2005060648A2 (en) 2003-12-16 2004-12-16 Lubricants with enhanced thermal conductivity containing nanomaterial

Country Status (1)

Country Link
WO (1) WO2005060648A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9359575B2 (en) 2012-07-02 2016-06-07 Nanomech, Inc. Nanoparticle macro-compositions
US9499766B2 (en) 2006-01-12 2016-11-22 Board Of Trustees Of The University Of Arkansas Nanoparticle compositions and methods for making and using the same
US9592532B2 (en) 2012-07-02 2017-03-14 Nanomech, Inc. Textured surfaces to enhance nano-lubrication

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10100266B2 (en) * 2006-01-12 2018-10-16 The Board Of Trustees Of The University Of Arkansas Dielectric nanolubricant compositions
EP2007662B1 (en) * 2006-03-31 2013-10-23 Jean-Pierre Gagnon Cellular encasement protection system for roller assembly
FR2950628B1 (en) 2009-09-25 2013-11-01 Arkema France MASTER MIXTURE FOR THE MANUFACTURE OF DRILLING FLUID
WO2014178811A1 (en) * 2013-04-30 2014-11-06 Boryshchuk Vladislav Additive for fuels and lubricants
CN114144256A (en) 2019-05-22 2022-03-04 菲尔格姆斯有限公司 Additive for liquid fuels, fuel composition based on additive and method for preparing same
CN115948193A (en) * 2022-12-12 2023-04-11 上海纳米技术及应用国家工程研究中心有限公司 Super-lubricating water-based cutting fluid and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429824A (en) * 1992-12-15 1995-07-04 Eastman Kodak Company Use of tyloxapole as a nanoparticle stabilizer and dispersant
US5443770A (en) * 1993-09-20 1995-08-22 Krstic; Vladimir D. High toughness carbide ceramics by slip casting and method thereof
US5543378A (en) * 1993-10-13 1996-08-06 E. I. Du Pont De Nemours And Company Carbon nanostructures encapsulating palladium
US6432320B1 (en) * 1998-11-02 2002-08-13 Patrick Bonsignore Refrigerant and heat transfer fluid additive
US20030164427A1 (en) * 2001-09-18 2003-09-04 Glatkowski Paul J. ESD coatings for use with spacecraft
US6783746B1 (en) * 2000-12-12 2004-08-31 Ashland, Inc. Preparation of stable nanotube dispersions in liquids

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429824A (en) * 1992-12-15 1995-07-04 Eastman Kodak Company Use of tyloxapole as a nanoparticle stabilizer and dispersant
US5443770A (en) * 1993-09-20 1995-08-22 Krstic; Vladimir D. High toughness carbide ceramics by slip casting and method thereof
US5543378A (en) * 1993-10-13 1996-08-06 E. I. Du Pont De Nemours And Company Carbon nanostructures encapsulating palladium
US6432320B1 (en) * 1998-11-02 2002-08-13 Patrick Bonsignore Refrigerant and heat transfer fluid additive
US6783746B1 (en) * 2000-12-12 2004-08-31 Ashland, Inc. Preparation of stable nanotube dispersions in liquids
US20030164427A1 (en) * 2001-09-18 2003-09-04 Glatkowski Paul J. ESD coatings for use with spacecraft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9499766B2 (en) 2006-01-12 2016-11-22 Board Of Trustees Of The University Of Arkansas Nanoparticle compositions and methods for making and using the same
US9359575B2 (en) 2012-07-02 2016-06-07 Nanomech, Inc. Nanoparticle macro-compositions
US9592532B2 (en) 2012-07-02 2017-03-14 Nanomech, Inc. Textured surfaces to enhance nano-lubrication

Also Published As

Publication number Publication date
WO2005060648A2 (en) 2005-07-07

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