JP2013181156A - Grease composition - Google Patents
Grease composition Download PDFInfo
- Publication number
- JP2013181156A JP2013181156A JP2012047750A JP2012047750A JP2013181156A JP 2013181156 A JP2013181156 A JP 2013181156A JP 2012047750 A JP2012047750 A JP 2012047750A JP 2012047750 A JP2012047750 A JP 2012047750A JP 2013181156 A JP2013181156 A JP 2013181156A
- Authority
- JP
- Japan
- Prior art keywords
- base oil
- grease composition
- amide
- compound
- amide compound
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000004519 grease Substances 0.000 title claims abstract description 45
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- -1 amide compound Chemical class 0.000 claims abstract description 53
- 239000002199 base oil Substances 0.000 claims abstract description 50
- 239000000314 lubricant Substances 0.000 claims abstract description 26
- 239000002562 thickening agent Substances 0.000 claims abstract description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004202 carbamide Substances 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims description 16
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 7
- 239000011707 mineral Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 13
- 239000002480 mineral oil Substances 0.000 abstract description 7
- 235000010446 mineral oil Nutrition 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract 2
- 150000008431 aliphatic amides Chemical class 0.000 description 11
- 150000002430 hydrocarbons Chemical group 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 9
- 150000001408 amides Chemical class 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 7
- 125000005442 diisocyanate group Chemical group 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 5
- 125000002723 alicyclic group Chemical group 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 4
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 description 4
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 4
- 229920013639 polyalphaolefin Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 3
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 3
- 125000003368 amide group Chemical group 0.000 description 3
- 150000008430 aromatic amides Chemical class 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- SWSBIGKFUOXRNJ-CVBJKYQLSA-N ethene;(z)-octadec-9-enamide Chemical compound C=C.CCCCCCCC\C=C/CCCCCCCC(N)=O.CCCCCCCC\C=C/CCCCCCCC(N)=O SWSBIGKFUOXRNJ-CVBJKYQLSA-N 0.000 description 2
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 2
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- XBTRYWRVOBZSGM-UHFFFAOYSA-N (4-methylphenyl)methanediamine Chemical compound CC1=CC=C(C(N)N)C=C1 XBTRYWRVOBZSGM-UHFFFAOYSA-N 0.000 description 1
- CPUBMKFFRRFXIP-YPAXQUSRSA-N (9z,33z)-dotetraconta-9,33-dienediamide Chemical compound NC(=O)CCCCCCC\C=C/CCCCCCCCCCCCCCCCCCCCCC\C=C/CCCCCCCC(N)=O CPUBMKFFRRFXIP-YPAXQUSRSA-N 0.000 description 1
- VZGOTNLOZGRSJA-ZZEZOPTASA-N (z)-n-octadecyloctadec-9-enamide Chemical compound CCCCCCCCCCCCCCCCCCNC(=O)CCCCCCC\C=C/CCCCCCCC VZGOTNLOZGRSJA-ZZEZOPTASA-N 0.000 description 1
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
- MTZUIIAIAKMWLI-UHFFFAOYSA-N 1,2-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC=C1N=C=O MTZUIIAIAKMWLI-UHFFFAOYSA-N 0.000 description 1
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- FYGFTTWEWBXNMP-UHFFFAOYSA-N 10-amino-10-oxodecanoic acid Chemical compound NC(=O)CCCCCCCCC(O)=O FYGFTTWEWBXNMP-UHFFFAOYSA-N 0.000 description 1
- WTHCRRXOPUNKAA-UHFFFAOYSA-N 16-methylheptadecan-1-amine Chemical compound CC(C)CCCCCCCCCCCCCCCN WTHCRRXOPUNKAA-UHFFFAOYSA-N 0.000 description 1
- KZVIUXKOLXVBPC-UHFFFAOYSA-N 16-methylheptadecanamide Chemical compound CC(C)CCCCCCCCCCCCCCC(N)=O KZVIUXKOLXVBPC-UHFFFAOYSA-N 0.000 description 1
- RDYWHMBYTHVOKZ-UHFFFAOYSA-N 18-hydroxyoctadecanamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCO RDYWHMBYTHVOKZ-UHFFFAOYSA-N 0.000 description 1
- XHSVWKJCURCWFU-UHFFFAOYSA-N 19-[3-(19-amino-19-oxononadecyl)phenyl]nonadecanamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCCC1=CC=CC(CCCCCCCCCCCCCCCCCCC(N)=O)=C1 XHSVWKJCURCWFU-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- KYIMHWNKQXQBDG-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCC Chemical compound N=C=O.N=C=O.CCCCCC KYIMHWNKQXQBDG-UHFFFAOYSA-N 0.000 description 1
- DGOMVSNLFKNSAR-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCCCCCC Chemical compound N=C=O.N=C=O.CCCCCCCCCC DGOMVSNLFKNSAR-UHFFFAOYSA-N 0.000 description 1
- PQKRXFRMEHADAK-UHFFFAOYSA-N N=C=O.N=C=O.CCCCCCCCCCCCCCCCCC Chemical compound N=C=O.N=C=O.CCCCCCCCCCCCCCCCCC PQKRXFRMEHADAK-UHFFFAOYSA-N 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- QVYARBLCAHCSFJ-UHFFFAOYSA-N butane-1,1-diamine Chemical compound CCCC(N)N QVYARBLCAHCSFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 150000001470 diamides Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical class OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000000400 lauroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 125000001419 myristoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- DJWFNQUDPJTSAD-UHFFFAOYSA-N n-octadecyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCCNC(=O)CCCCCCCCCCCCCCCCC DJWFNQUDPJTSAD-UHFFFAOYSA-N 0.000 description 1
- 125000002801 octanoyl group Chemical group C(CCCCCCC)(=O)* 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- BARWIPMJPCRCTP-UHFFFAOYSA-N oleic acid oleyl ester Natural products CCCCCCCCC=CCCCCCCCCOC(=O)CCCCCCCC=CCCCCCCCC BARWIPMJPCRCTP-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- MGDIOJPGJAGMGP-UHFFFAOYSA-N pentacosanediamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCCCCCCCC(N)=O MGDIOJPGJAGMGP-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- GGHDAUPFEBTORZ-UHFFFAOYSA-N propane-1,1-diamine Chemical compound CCC(N)N GGHDAUPFEBTORZ-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 125000003696 stearoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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Abstract
Description
本発明は、ウレア系増ちょう剤を用いるグリース組成物に関する。 The present invention relates to a grease composition using a urea-based thickener.
グリースは、主にすべり軸受けやころがり軸受け(ベアリング)、あるいは接触面が動くために潤滑剤の膜を付着した状態に保つのが難しい摺動面に用いられ、この中でも、ウレア系増ちょう剤を用いた、いわゆるウレア系グリースは、優れた耐水性、機械的安定性、耐熱性を有するため、低速ではあるが、高荷重の金属製摺動部材同士、例えば、自動車の等速ジョイントなどに広く使用されている。 Grease is mainly used for sliding bearings, rolling bearings (bearings), or sliding surfaces where it is difficult to keep the lubricant film attached due to the movement of the contact surface. The so-called urea-based grease used has excellent water resistance, mechanical stability, and heat resistance, so it is low speed but widely used for high-load metal sliding members, for example, constant velocity joints of automobiles, etc. It is used.
かかる等速ジョイント用グリース組成物として、基油、硫化ジアルキルジチオカルバミン酸モリブデンなどの有機モリブデン化合物、二硫化モリブデン、ジチオリン酸亜鉛化合物、及び脂肪族アミドを含むものが提案されている(特許文献1〜3)。
しかし、上記グリース組成物は、潤滑性、特には耐摩耗性の点で不十分で、しかも、高温での長時間の使用において、耐摩耗性が低下するなどの問題があった。
As such a grease composition for constant velocity joints, those containing a base oil, an organic molybdenum compound such as molybdenum sulfide dialkyldithiocarbamate, molybdenum disulfide, a zinc dithiophosphate compound, and an aliphatic amide have been proposed (Patent Documents 1 to 3). 3).
However, the grease composition is insufficient in terms of lubricity, in particular, wear resistance, and has a problem in that wear resistance is lowered when used for a long time at a high temperature.
本発明が解決しようとする課題は、高い潤滑性を有する、特には耐摩耗性に優れ、しかも、高温での長時間の使用において、耐摩耗性の低下が少ないグリース組成物を提供することにある。 The problem to be solved by the present invention is to provide a grease composition having high lubricity, particularly excellent wear resistance, and having little decrease in wear resistance when used for a long time at a high temperature. is there.
本発明者は、上記課題を解決するために、鋭意、研究を進めた結果、グリース中にアミド化合物粉末が、単に分散、混合された状態と比較して、アミド化合物を潤滑油基油の存在下で加熱溶融すると、三次元網目構造を形成するアミド化合物中に潤滑油基油が保持された状態になり、著しく耐摩耗性が向上し、また、高温での長時間の使用においても、耐摩耗性の低下が少ないグリース組成物とすることができることを見出した。
本発明は、かかる知見に基づきなされたもので、次のものからなる。
As a result of earnestly researching the present inventors to solve the above-mentioned problems, the amide compound powder is present in the presence of the lubricant base oil in comparison with a state where the amide compound powder is simply dispersed and mixed in the grease. When heated and melted below, the lubricating base oil is retained in the amide compound that forms the three-dimensional network structure, and the wear resistance is remarkably improved. It has been found that the grease composition can be reduced in wear resistance.
This invention is made | formed based on this knowledge, and consists of the following.
(1)鉱油系および合成系の潤滑油基油から選ばれる少なくとも1種の基油、アミド化合物、固体潤滑剤及びウレア系増ちょう剤を含み、前記アミド化合物を前記基油と少なくとも一度は加熱溶融させたものであるグリース組成物。
(2)鉱油系および合成系の潤滑油基油は、40℃の動粘度が1〜1000mm2/sである上記(1)に記載されたグリース組成物。
(3)アミド化合物が炭素数6〜24のアルキル基を有するものである上記(1)又は(2)に記載されたグリース組成物。
(4)固体潤滑剤がメラミンシアヌレート、ポリテトラフルオロエチレン、窒化ホウ素の少なくとも一つである上記(1)〜(3)のいずれかに記載されたグリース組成物。
成物。
(5)ウレア系増ちょう剤が、脂肪族ジウレア化合物、脂環族ジウレア化合物、芳香族ジウレア化合物の少なくとも1つを含む上記(1)〜(4)のいずれかに記載されたグリース組成物。
(6)金属製摺動部材同士の潤滑に使用される上記(1)〜(5)のいずれかに記載されたグリース組成物。
(7)鉱油系および合成系の潤滑油基油から選ばれる少なくとも1種の基油、アミド化合物、固体潤滑剤及びウレア系増ちょう剤を含むグリース組成物の製造方法であって、前記基油に、少なくとも前記アミド化合物を含有させて、加熱、溶融することを特徴とするグリース組成物の製造方法。
(1) At least one base oil selected from mineral and synthetic lubricant base oils, an amide compound, a solid lubricant, and a urea thickener, and the amide compound is heated at least once with the base oil. A grease composition that is melted.
(2) The grease composition as described in (1) above, wherein the mineral base oil and synthetic base oil have a kinematic viscosity at 40 ° C. of 1 to 1000 mm 2 / s.
(3) The grease composition described in (1) or (2) above, wherein the amide compound has an alkyl group having 6 to 24 carbon atoms.
(4) The grease composition described in any one of (1) to (3) above, wherein the solid lubricant is at least one of melamine cyanurate, polytetrafluoroethylene, and boron nitride.
Adult.
(5) The grease composition as described in any one of (1) to (4) above, wherein the urea thickener contains at least one of an aliphatic diurea compound, an alicyclic diurea compound, and an aromatic diurea compound.
(6) The grease composition as described in any one of (1) to (5) above, which is used for lubrication between metal sliding members.
(7) A method for producing a grease composition comprising at least one base oil selected from mineral and synthetic lubricating base oils, an amide compound, a solid lubricant and a urea thickener, wherein the base oil A method for producing a grease composition comprising heating at least the amide compound and melting.
本発明のグリース組成物は、優れた耐水性、機械的安定性、耐熱性を有し、低速で、高荷重の金属同士の摺動部において、耐摩耗性に優れ、しかも、高温での長時間の使用において、耐摩耗性が低下しないという格別の効果を奏するものである。 The grease composition of the present invention has excellent water resistance, mechanical stability and heat resistance, and is excellent in wear resistance at a low speed, high load metal-to-metal sliding portion and long at high temperature. In the use of time, there is a special effect that the wear resistance does not decrease.
本発明のグリース組成物は、潤滑油基油、アミド化合物、固体潤滑剤及びウレア系増ちょう剤を含むものである。
〔潤滑油基油〕
本発明の潤滑油基油としては、鉱油系または合成系のいずれも用いることができるが、40℃における動粘度が1〜1000mm2/sのものが好ましく、20〜300mm2/sがより好ましい。40℃における動粘度が1〜1000mm2/sから外れると、所望のちょう度を有するグリース組成物を簡便に調製でき難くなる。
また、この潤滑油基油は、15℃における密度が0.75〜0.95g/cm3のものが、固体潤滑剤の分散性が高いため好ましく、さらに、優れた潤滑性を有するグリースを調製するためには、粘度指数が90以上、特には95〜250、流動点が−10℃以下、特には−15〜−70℃、引火点が150℃以上の物性を有するものが好ましい。
The grease composition of the present invention contains a lubricating base oil, an amide compound, a solid lubricant, and a urea-based thickener.
[Lubricant base oil]
As the lubricating base oil of the present invention, either a mineral oil or a synthetic oil can be used, preferably having a kinematic viscosity of 1 to 1000 mm 2 / s at 40 ° C., more preferably 20 to 300 mm 2 / s. . If the kinematic viscosity at 40 ° C. deviates from 1 to 1000 mm 2 / s, it becomes difficult to easily prepare a grease composition having a desired consistency.
The lubricating base oil having a density of 0.75 to 0.95 g / cm 3 at 15 ° C. is preferable because of high dispersibility of the solid lubricant, and further, a grease having excellent lubricating properties is prepared. In order to achieve this, those having physical properties of a viscosity index of 90 or higher, particularly 95 to 250, a pour point of −10 ° C. or lower, particularly −15 to −70 ° C., and a flash point of 150 ° C. or higher are preferable.
鉱油系潤滑油基油としては、原油を常圧蒸留し、あるいはさらに減圧蒸留して得られる留出油を各種の精製プロセスで精製した潤滑油留分が挙げられる。精製プロセスは、水素化精製、溶剤抽出、溶剤脱ろう、水素化脱ろう、硫酸洗浄、白土処理などであり、これらを適宜の順序で組み合わせて処理して本発明の基油を得ることができる。異なる原油あるいは留出油を、異なるプロセスの組合せ、順序により得られた、性状の異なる複数の精製油の混合物も有用である。いずれの方法によっても、得られる基油の性状が、前述した物性を満足するように調整することによって好ましく使用することができる。 Examples of the mineral-based lubricating base oil include lubricating oil fractions obtained by purifying distillate obtained by subjecting crude oil to atmospheric distillation or further distillation under reduced pressure by various purification processes. The refining process includes hydrorefining, solvent extraction, solvent dewaxing, hydrodewaxing, sulfuric acid washing, clay treatment, etc., and these can be combined in an appropriate order to obtain the base oil of the present invention. . A mixture of refined oils having different properties, obtained by different crude oils or distillate oils by different process combinations and sequences is also useful. Any method can be preferably used by adjusting the properties of the obtained base oil so as to satisfy the aforementioned physical properties.
合成系潤滑油基油としては、加水分解安定性に優れる基材を用いることが好ましく、例えばポリ‐α‐オレフィン、ポリブテンや2種以上の各種オレフィンの共重合体などのポリオレフィン、ポリエステル、ポリアルキレングリコール、アルキルベンゼン、アルキルナフタレンなどが挙げられる。なかでも、ポリ‐α‐オレフィンが、入手性、コスト面、粘度特性、酸化安定性、システム部材との適合性の面で好ましい。ポリ‐α‐オレフィンは、1‐ドデセンや1‐デセンなどの重合物がコスト面でさらに好ましい。 As the synthetic lubricant base oil, it is preferable to use a substrate having excellent hydrolysis stability. For example, polyolefins such as poly-α-olefin, polybutene and copolymers of two or more kinds of olefins, polyesters, polyalkylenes Examples thereof include glycol, alkylbenzene, and alkylnaphthalene. Of these, poly-α-olefins are preferable in terms of availability, cost, viscosity characteristics, oxidation stability, and compatibility with system components. The poly-α-olefin is more preferably a polymer such as 1-dodecene or 1-decene in terms of cost.
潤滑油基油は、例示した合成系を単独で、あるいは2種以上を混合して用いることができる。さらに、前記鉱油系と混合しても使用することもできる。
合成系潤滑油基油を含めて、複数の潤滑油基油の混合物を使用する場合、該基油混合物が上記物性を満足するものであれば、混合前の個々の基油がかかる物性の範囲を外れていても使用することができる。したがって、個々の合成油系基油は、上記物性を必ずしも満足する必要はないが、上記物性の範囲内であることが好ましい。
この潤滑油基油の含有量は、グリース組成物全量基準で、50〜95質量%が好ましく、60〜85質量%とすることが特に好ましい。潤滑油基油の含有量が50〜95質量%の範囲を外れると所望のちょう度を有するグリース組成物を簡便に調製でき難くなる。
As the lubricating base oil, the exemplified synthetic systems can be used alone or in admixture of two or more. Furthermore, it can also be used by mixing with the mineral oil system.
When using a mixture of a plurality of lubricating base oils including a synthetic base oil, if the base oil mixture satisfies the above physical properties, the individual base oils before mixing are within the range of physical properties. It can be used even if it is off. Accordingly, the individual synthetic base oils do not necessarily satisfy the above physical properties, but are preferably within the above physical properties.
The content of the lubricating base oil is preferably 50 to 95% by mass, particularly preferably 60 to 85% by mass, based on the total amount of the grease composition. When the content of the lubricating base oil is out of the range of 50 to 95% by mass, it becomes difficult to easily prepare a grease composition having a desired consistency.
〔アミド化合物〕
本発明に用いるアミド化合物とは、アミド基(‐NH‐CO‐)を1個有するモノアミド、2個有するビスアミド、3個有するトリアミドなどであるが、ビスアミドやトリアミドが比較的少量でも摺動部の摩擦抵抗を軽減できる利点があり、好ましい。
モノアミドとしては、モノアミンの酸アミドでも、モノ酸の酸アミドのいずれでも良く、また、ビスアミドも、ジアミンの酸アミドでも、ジ酸の酸アミドのいずれでも良い。
好ましく用いられるアミド化合物は、融点が40〜180℃、特に好ましくは80〜180℃、更に好ましくは100〜170℃、分子量が242〜932、特に好ましくは298〜876のものである。
モノアミド、ビスアミド、及びトリアミドは、下記の一般式(1)、一般式(2)及び(3)、及び一般式(4)でそれぞれ表される。
[Amide compound]
The amide compound used in the present invention is a monoamide having one amide group (—NH—CO—), a bisamide having two, a triamide having three, and the like. There is an advantage that frictional resistance can be reduced, which is preferable.
The monoamide may be either a monoamine acid amide or a monoacid acid amide, and a bisamide, a diamine acid amide, or a diacid acid amide.
The amide compound preferably used is one having a melting point of 40 to 180 ° C., particularly preferably 80 to 180 ° C., more preferably 100 to 170 ° C., and a molecular weight of 242 to 932, particularly preferably 298 to 876.
Monoamide, bisamide, and triamide are represented by the following general formula (1), general formula (2) and (3), and general formula (4), respectively.
R1‐CO‐NH‐R2 ・・・・(1)
R1‐CO‐NH‐A1‐NH‐CO‐R2 ・・・・(2)
R1‐NH‐CO‐A1‐CO‐NH‐R2 ・・・・(3)
R1‐M‐A1‐CH(A2‐M‐R3)‐A3‐M‐R2・・・・(4)
R 1 -CO-NH-R 2 (1)
R 1 -CO-NH-A 1 -NH-CO-R 2 (2)
R 1 -NH-CO-A 1 -CO-NH-R 2 (3)
R 1 -M-A 1 -CH (A 2 -M-R 3 ) -A 3 -M-R 2 (4)
上記各式において、R1、R2、R3は、それぞれ独立して、炭素数5〜25の炭化水素基で、脂肪族炭化水素基、脂環族炭化水素基または芳香族炭化水素基のいずれでもよい。一般式(1)の場合にはR2が水素の場合も含む。A1、A2、A3は、それぞれ独立して、炭素数1〜10の脂肪族炭化水素基、脂環族炭化水素基または芳香族炭化水素基、若しくはこれらが組み合わされたかたちの炭素数1〜10の2価の炭化水素基で、Mはアミド基である。
なお、モノアミドの場合、R2が水素又は炭素数10〜20の飽和又は不飽和の鎖状炭化水素基であることが好ましい。
また、ジアミンの酸アミドの場合は、A1が炭素数1〜4の2価の飽和鎖状炭化水素基のものが好ましい。
さらに、式(2)及び(3)において、R1、R2、またはA1で表される炭化水素基は、一部の水素が水酸基(‐OH)で置換されていてもよい。
In each of the above formulas, R 1 , R 2 and R 3 are each independently a hydrocarbon group having 5 to 25 carbon atoms, which is an aliphatic hydrocarbon group, an alicyclic hydrocarbon group or an aromatic hydrocarbon group. Either is acceptable. In the case of the general formula (1), the case where R 2 is hydrogen is also included. A 1 , A 2 , and A 3 are each independently an aliphatic hydrocarbon group having 1 to 10 carbon atoms, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, or a combination of these carbon numbers 1-10 divalent hydrocarbon groups, M is an amide group.
In the case of monoamide, R 2 is preferably hydrogen or a saturated or unsaturated chain hydrocarbon group having 10 to 20 carbon atoms.
In the case of a diamine acid amide, A 1 is preferably a divalent saturated chain hydrocarbon group having 1 to 4 carbon atoms.
Furthermore, in the formulas (2) and (3), in the hydrocarbon group represented by R 1 , R 2 , or A 1 , a part of hydrogen may be substituted with a hydroxyl group (—OH).
本明細書においては、A1、A2およびA3が脂肪族炭化水素基であるアミド化合物を脂肪族アミドと、A1、A2またはA3の少なくとも一つが芳香族炭化水素基であるアミド化合物を芳香族アミドと、また、A1、A2またはA3の少なくとも一つが脂環族炭化水素基または芳香族炭化水素基であるアミド化合物を非脂肪族アミドという。
脂肪族アミドの場合、R1、R2、R3は炭素数10〜20の飽和又は不飽和の鎖状炭化水素基であることが好ましい。
芳香族アミドの場合、R1、R2、R3は炭素数10〜20の飽和又は不飽和の鎖状炭化水素基と芳香族炭化水素基のものが好ましい。
アミド化合物としては、非脂肪族アミドを用いることができるが、脂肪族アミドが好ましい。ジアミンの酸アミド(一般式(3))の場合は、A1が炭素数1〜4の2価の飽和鎖状炭化水素基のものが好ましい。
In the present specification, an amide compound in which A 1 , A 2 and A 3 are aliphatic hydrocarbon groups is an aliphatic amide, and an amide in which at least one of A 1 , A 2 or A 3 is an aromatic hydrocarbon group The compound is referred to as an aromatic amide, and the amide compound in which at least one of A 1 , A 2, or A 3 is an alicyclic hydrocarbon group or an aromatic hydrocarbon group is referred to as a non-aliphatic amide.
In the case of an aliphatic amide, R 1 , R 2 and R 3 are preferably a saturated or unsaturated chain hydrocarbon group having 10 to 20 carbon atoms.
In the case of an aromatic amide, R 1 , R 2 , and R 3 are preferably those having a saturated or unsaturated chain hydrocarbon group having 10 to 20 carbon atoms and an aromatic hydrocarbon group.
As the amide compound, a non-aliphatic amide can be used, but an aliphatic amide is preferred. In the case of a diamine acid amide (general formula (3)), A 1 is preferably a divalent saturated chain hydrocarbon group having 1 to 4 carbon atoms.
モノアミドとしては、具体的には、ラウリン酸アミド、パルミチン酸アミド、ステアリン酸アミド、ベヘン酸アミド、ヒドロキシステアリン酸アミド等の飽和脂肪酸アミド、オレイン酸アミド、エルカ酸アミドなどの不飽和脂肪酸アミド、及びステアリルステアリン酸アミド、オレイルオレイン酸アミド、オレイルステアリン酸アミド、ステアリルオレイン酸アミド等の飽和又は不飽和の長鎖脂肪酸と長鎖アミンによる置換アミド類などが挙げられる。 Specific examples of monoamides include saturated fatty acid amides such as lauric acid amide, palmitic acid amide, stearic acid amide, behenic acid amide, hydroxystearic acid amide, unsaturated fatty acid amides such as oleic acid amide and erucic acid amide, and Examples thereof include substituted amides of saturated or unsaturated long-chain fatty acids and long-chain amines such as stearyl stearamide, oleyl oleate amide, oleyl stearate amide, stearyl oleamide.
式(2)で表されるジアミンの酸アミドとしては、具体的には、エチレンビスステアリン酸アミド、エチレンビスイソステアリン酸アミド、エチレンビスオレイン酸アミド、メチレンビスラウリン酸アミド、ヘキサメチレンビスオレイン酸アミド、ヘキサメチレンビスヒドロキシステアリン酸アミド等が挙げられる。式(3)で表されるジ酸のビスアミドとしては、具体的には、N,N'‐ビスステアリルセバシン酸アミド等が挙げられる。
これらビスアミドの中でも、式(2)及び式(3)のR1とR2がそれぞれ独立して炭素数12〜20の飽和鎖状炭化水素基又は不飽和鎖状炭化水素基のアミド化合物であることが好ましい。
Specific examples of the acid amide of the diamine represented by the formula (2) include ethylene bis stearic acid amide, ethylene bis isostearic acid amide, ethylene bis oleic acid amide, methylene bis lauric acid amide, and hexamethylene bis oleic acid amide. And hexamethylene bishydroxystearic acid amide. Specific examples of the diacid bisamide represented by the formula (3) include N, N′-bisstearyl sebacic acid amide.
Among these bisamides, R 1 and R 2 in formula (2) and formula (3) are each independently an amide compound having a saturated chain hydrocarbon group or unsaturated chain hydrocarbon group having 12 to 20 carbon atoms. It is preferable.
式(4)で表されるトリアミドは多数あるが、本発明に好適に用いることができる化合物として具体的にはN‐アシルアミノ酸ジアミド化合物が挙げられる。この化合物のN‐アシル基は、炭素数1〜30の直鎖又は分枝の飽和又は不飽和の脂肪族アシル基又は芳香族アシル基、特にはカプロイル基、カプリロイル基、ラウロイル基、ミリストイル基、ステアロイル基からなるものが好ましく、またアミノ酸としてはアスパラギン酸、グルタミン酸からなるものが好ましく、また、アミド基のアミンは炭素数1〜30の直鎖又は分枝の飽和又は不飽和の脂肪族アミン、特にはブチルアミン、オクチルアミン、ラウリルアミン、イソステアリルアミン、ステアリルアミン等が好ましい。特には、具体的な化合物としてN‐ラウロイル‐L‐グルタミン酸‐α,γ‐ジ‐n‐ブチルアミドが好ましい。
上記アミド化合物はそれぞれ単独で用いても、2種以上の割合で組み合わせて用いてもよい。このアミドの含有量は、グリース組成物全量基準で、0.1〜50質量%とすることが好ましく、3〜35質量%が好ましい。
There are many triamides represented by the formula (4), and specific examples of compounds that can be suitably used in the present invention include N-acylamino acid diamide compounds. The N-acyl group of this compound is a linear or branched saturated or unsaturated aliphatic acyl group or aromatic acyl group having 1 to 30 carbon atoms, particularly a caproyl group, capryloyl group, lauroyl group, myristoyl group, Those composed of stearoyl groups are preferred, and as amino acids are preferably composed of aspartic acid and glutamic acid, and the amine of the amide group is a linear or branched saturated or unsaturated aliphatic amine having 1 to 30 carbon atoms, In particular, butylamine, octylamine, laurylamine, isostearylamine, stearylamine and the like are preferable. In particular, N-lauroyl-L-glutamic acid-α, γ-di-n-butyramide is preferred as a specific compound.
The amide compounds may be used alone or in combination of two or more. The amide content is preferably 0.1 to 50% by mass, more preferably 3 to 35% by mass, based on the total amount of the grease composition.
〔固体潤滑剤〕
固体潤滑剤は、一般に潤滑剤に使用されているものであれば特に限定されないが、潤滑性が優れている層状化合物またはふっ素樹脂を用いることが好ましい。
層状化合物としては、メラミンシアヌレート、窒化ホウ素、黒鉛、雲母、フッ化黒鉛など、層状の結晶構造を有する化合物が好適である。なお、重金属や硫黄を含有する化合物は、環境汚染などの観点からあまり好ましくない。
ふっ素樹脂としては、ポリテトラフルオロエチレン(PTFE)、テトラフルオロエチレン・パーフルオロアルキルビニルエーテル共重合体(PFA)、テトラフルオロエチレン・ヘキサフルオロプロピレン共重合体(FEP)、テトラフルオロエチレン・エチレン共重合体(ETFE)、ポリビニリデンフルオライド(PVDF)、ポリクロロトリフルオロエチレン(PCTFE)等などが好適である。
[Solid lubricant]
The solid lubricant is not particularly limited as long as it is generally used for a lubricant, but it is preferable to use a layered compound or a fluorine resin having excellent lubricity.
As the layered compound, a compound having a layered crystal structure such as melamine cyanurate, boron nitride, graphite, mica, and graphite fluoride is suitable. In addition, the compound containing a heavy metal and sulfur is not so preferable from viewpoints of environmental pollution.
Examples of fluororesins include polytetrafluoroethylene (PTFE), tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene / hexafluoropropylene copolymer (FEP), and tetrafluoroethylene / ethylene copolymer. (ETFE), polyvinylidene fluoride (PVDF), polychlorotrifluoroethylene (PCTFE) and the like are suitable.
これらの固体潤滑剤は単独又は2種以上混合して用いることができ、また、使用用途により適切な粒径のものを適宜選定して使用できるが、粒子直径が0.2〜50μm、特には1〜10μmのものが好ましい。
この固体潤滑剤の含有量は、グリース組成物の全量基準で、0.1〜10質量%、特には0.2〜5質量%とすることが好ましい。
These solid lubricants can be used alone or as a mixture of two or more thereof, and those having an appropriate particle size can be appropriately selected and used depending on the intended use, but the particle diameter is 0.2 to 50 μm, particularly The thing of 1-10 micrometers is preferable.
The content of the solid lubricant is preferably 0.1 to 10% by mass, particularly 0.2 to 5% by mass, based on the total amount of the grease composition.
〔ウレア系増ちょう剤〕
ウレア系増ちょう剤としては、例えば、ジイソシアネートとモノアミンとの反応で得られるジウレア化合物やジイソシアネートとモノアミン、ジアミンとの反応で得られるポリウレア化合物等を用いることができる。
ジイソシアネートとしては、フェニレンジイソシアネート、トリレンジイソシアネート、ジフェニルジイソシアネート、ジフェニルメタンジイソシアネート、オクタデカンジイソシアネート、デカンジイソシアネート、ヘキサンジイソシアネー卜等が好ましく、また、モノアミンとしては、オクチルアミン、ドデシルアミン、ヘキサデシルアミン、ステアリルアミン、オレイルアミン、アニリン、p‐トルイジン、シクロヘキシルアミン等が、さらに、ジアミンとしては、エチレンジアミン、プロパンジアミン、ブタンジアミン、ヘキサンジアミン、オクタンジアミン、フェニレンジアミン、トリレンジアミン、キシレンジアミン、ジアミノジフェニルメタン等が好ましい。
このウレア系増ちょう剤は、一種類でも複数の種類を混合して用いてもよい。この増ちょう剤の含有量は、所望のちょう度が得られれば良く、例えば、グリース組成物の全量基準で、好ましくは2〜30質量%、さらに好ましくは5〜20質量%である。
[Urea-based thickener]
As the urea thickener, for example, a diurea compound obtained by reaction of diisocyanate and monoamine, a polyurea compound obtained by reaction of diisocyanate and monoamine, or diamine can be used.
Diisocyanates are preferably phenylene diisocyanate, tolylene diisocyanate, diphenyl diisocyanate, diphenylmethane diisocyanate, octadecane diisocyanate, decane diisocyanate, hexane diisocyanate, etc., and monoamines are octylamine, dodecylamine, hexadecylamine, stearylamine. Oleylamine, aniline, p-toluidine, cyclohexylamine and the like, and as the diamine, ethylenediamine, propanediamine, butanediamine, hexanediamine, octanediamine, phenylenediamine, tolylenediamine, xylenediamine, diaminodiphenylmethane and the like are preferable.
These urea-based thickeners may be used singly or in combination. The content of the thickening agent is sufficient if a desired consistency is obtained. For example, the content is preferably 2 to 30% by mass, more preferably 5 to 20% by mass, based on the total amount of the grease composition.
〔その他の添加剤〕
本発明のグリース組成物には、上記成分以外に、必要に応じて、一般に潤滑油やグリースに用いられている、例えば、清浄剤、分散剤、摩耗防止剤、粘度指数向上剤、酸化防止剤、極圧剤、防錆剤、腐食防止剤などを適宜添加することができる。
[Other additives]
In addition to the components described above, the grease composition of the present invention is generally used in lubricating oils and greases as necessary. For example, detergents, dispersants, antiwear agents, viscosity index improvers, antioxidants An extreme pressure agent, a rust inhibitor, a corrosion inhibitor and the like can be appropriately added.
〔調製方法〕
本発明のグリース組成物は、一般的なグリースの製造方法で作製できるが、アミド化合物を混合後に、その融点以上に一度加熱することが好ましい。
すなわち、アミド化合物と潤滑油基油をアミド化合物の融点以上に加熱して冷却後、固体潤滑剤と増ちょう剤と潤滑油基油からなる一般的なグリースと物理的に混合する方法でもよく、また、ウレア系増ちょう剤を含む全ての成分を混合した後に、アミド化合物の融点以上に加熱して冷却することでもよい。
[Preparation method]
The grease composition of the present invention can be produced by a general method for producing grease, but it is preferable to heat the amide compound once after its melting point after mixing.
In other words, the amide compound and the lubricating base oil may be heated to the melting point of the amide compound or higher and cooled, and then physically mixed with a general grease composed of a solid lubricant, a thickener, and a lubricating base oil. Moreover, after mixing all the components containing a urea-type thickener, it may be cooled by heating above the melting point of the amide compound.
このように、アミド化合物を少なくとも潤滑油基油の存在下に、一度アミド化合物の融点以上に加熱することにより、三次元網目構造を形成するアミド化合物中に液状潤滑基油が保持されて半固体状のゲルとなっているが、微視的には液状潤滑基油は、網目構造内を自由に動き回っている。これは、例えば、多孔質の細い空隙にゲル状の潤滑性を有する組成物が接触する場合、毛細管現象によって、ゲル中の液状潤滑基油がゲルから細い空隙に移動できることを示し、又は逆に液状潤滑基油がシステムに余分に存在している場合、ゲルの三次元構造が毛細管現象となって、ゲル内にこれら余分の液状潤滑油基油を取り込むことを示している。このような状態に対してウレア系増ちょう剤によってちょう度が付与され、優れた耐水性、機械的安定性、耐熱性に加えて、さらに、耐摩耗性に著しく優れ、しかも、高温での長時間の使用において、耐摩耗性が低下しないという効果が達成される。 In this way, the liquid lubricant base oil is retained in the amide compound forming a three-dimensional network structure by heating the amide compound once to the melting point of the amide compound at least in the presence of the lubricant base oil. Microscopically, the liquid lubricating base oil moves freely around in the network structure. This indicates that, for example, when a composition having gel-like lubricity comes into contact with a porous narrow void, the liquid lubricating base oil in the gel can move from the gel to the narrow void by capillary action, or conversely If extra liquid lubricant base oil is present in the system, the three-dimensional structure of the gel becomes a capillary phenomenon, indicating that these extra liquid lubricant base oils are incorporated into the gel. In such a state, a consistency is imparted by a urea-based thickener, and in addition to excellent water resistance, mechanical stability, and heat resistance, it is extremely excellent in wear resistance, and it is long at high temperatures. The effect is achieved that the wear resistance does not decrease over time.
1.潤滑油基油
(1)鉱油系
・常圧蒸留残渣を減圧蒸留した留出油を溶剤精製して得られた潤滑油基油
40℃における動粘度;68mm2/s
15℃における密度;0.87g/cm3
粘度指数;100
流動点;−10℃
引火点;250℃
(2)合成系
ポリαオレフィン(INEOS社製Durasyn170)
40℃における動粘度;68mm2/s
15℃における密度:0.83g/cm3
粘度指数;133
流動点;−45℃
引火点;250℃
1. Lubricating oil base oil (1) Lubricating oil base oil obtained by solvent refining of distillate obtained by distilling mineral oil and atmospheric distillation residue under reduced pressure Kinematic viscosity at 40 ° C; 68 mm 2 / s
Density at 15 ° C; 0.87 g / cm 3
Viscosity index: 100
Pour point: -10 ° C
Flash point: 250 ° C
(2) Synthetic system Poly α-olefin (Durasyn170 manufactured by INEOS)
Kinematic viscosity at 40 ° C; 68 mm 2 / s
Density at 15 ° C .: 0.83 g / cm 3
Viscosity index; 133
Pour point: -45 ° C
Flash point: 250 ° C
2.アミド化合物
2−1.脂肪族アミド
(1)エチレンビスステアリン酸アミド(特級試薬)
(2)エチレンビスオレイン酸アミド(特級試薬)
(3)ステアリン酸モノアミド(特級試薬)
2−2.芳香族アミド
(1)m‐キシリレンビスステアリン酸アミド(特級試薬)
2. Amide compound 2-1. Aliphatic amide (1) Ethylene bis-stearic acid amide (special grade reagent)
(2) Ethylene bisoleic acid amide (special grade reagent)
(3) Stearic acid monoamide (special grade reagent)
2-2. Aromatic amide (1) m-xylylene bis-stearic acid amide (special grade reagent)
3.固体潤滑剤
(1)メラミンシアヌレート(MCA、平均粒径;4μm、BASF社製MELAPUR MC25)
(2)ポリテトラフルオロエチレン(PTFE、平均粒子径;4μm、喜多村社製KTL‐8N)
(3)窒化ホウ素(平均粒子径;2μm、水島合金鉄社製HP‐P1)
なお、平均粒子径はレーザー光回折法により測定したものである。
3. Solid lubricant (1) Melamine cyanurate (MCA, average particle diameter: 4 μm, MELAPUR MC25 manufactured by BASF)
(2) Polytetrafluoroethylene (PTFE, average particle size: 4 μm, KTL-8N manufactured by Kitamura)
(3) Boron nitride (average particle size: 2 μm, HP-P1 made by Mizushima Alloy Iron Company)
The average particle diameter is measured by a laser light diffraction method.
4.ウレア系増ちょう剤
(1)オクタデシルアミンとメチレンジフェルニルジイソシアネートからなる脂肪族ジウレア
(2)シクロヘキシルアミンとメチレンジフェルニルジイソシアネートからなる脂環族ジウレア
(3)p‐トルイジンとメチレンジフェルニルジイソシアネートからなる芳香族ジウレア
4). Urea-based thickener (1) Aliphatic diurea composed of octadecylamine and methylenedifernyl diisocyanate (2) Alicyclic diurea composed of cyclohexylamine and methylenedifernyl diisocyanate (3) p-toluidine and methylenedifernyl diisocyanate Aromatic diurea consisting of
5.他の添加剤
酸化防止剤としてジフェニルアミンを全てに添加した。
5. Other additives Diphenylamine was added to all as an antioxidant.
〔調製方法〕
各成分を表1、表2に示す配合量(重量%で示す)で容器に入れ、150℃(アミド化合物の融点以上)に加熱して、マグネチックスターラーで攪拌したのち、室温に冷却した。これをローラ(3本ロール)で加圧分散処理を行い、グリース組成物を調製した。
なお、比較例7については、表2に示す配合量のものを、加熱、冷却することなく、直接、ローラ(3本ロール)で加圧分散処理を行い、グリース組成物を調製した。
[Preparation method]
Each component was put in a container at the blending amount (shown by weight%) shown in Tables 1 and 2, heated to 150 ° C. (above the melting point of the amide compound), stirred with a magnetic stirrer, and then cooled to room temperature. This was subjected to pressure dispersion treatment with a roller (three rolls) to prepare a grease composition.
For Comparative Example 7, a grease composition was prepared by subjecting the blending amounts shown in Table 2 to pressure dispersion treatment with a roller (three rolls) directly without heating and cooling.
〔評価試験〕
Pin-Vee blockのFALEX試験機を用い、荷重は350lbfで、15分間摩擦試験を実施し、試験片の摩耗量を評価した。新油だけでなくグリースが過酷な条件で使用された場合の性能も評価するため、グリースを、150℃の環境下で、100時間と500時間、放置し、強制的に劣化させたものも同様にFALEX試験を実施した。
〔Evaluation test〕
Using a Pin-Vee block FALEX tester, the load was 350 lbf, and a friction test was performed for 15 minutes to evaluate the wear amount of the test piece. In order to evaluate the performance when not only new oil but also grease is used under harsh conditions, the same applies to grease that is forced to deteriorate for 100 and 500 hours in an environment of 150 ° C. The FALEX test was conducted.
〔評価結果〕
鉱油とウレア系増ちょう剤を配合した場合、新油の摩耗量は7mg程度であったが劣化油の摩耗量は特に多かった(比較例6)。
鉱油とウレア系増ちょう剤と固体潤滑剤を配合した場合、新油の摩耗量は僅かに低減したが、劣化油の摩耗量は多かった(比較例1〜5)。
脂肪族アミドを加熱、溶融させていないものは、新油、劣化油ともに摩耗量は多かった(比較例7)。
鉱油とウレア系増ちょう剤と固体潤滑剤と脂肪族アミドを配合した場合、新油・劣化油ともに摩耗量は大幅に低減した(実施例1〜9)。
〔Evaluation results〕
When mineral oil and urea-based thickener were blended, the wear amount of the new oil was about 7 mg, but the wear amount of the deteriorated oil was particularly large (Comparative Example 6).
When mineral oil, urea-based thickener and solid lubricant were blended, the wear amount of the new oil was slightly reduced, but the wear amount of the deteriorated oil was large (Comparative Examples 1 to 5).
When the aliphatic amide was not heated and melted, the amount of wear was large for both the new oil and the deteriorated oil (Comparative Example 7).
When mineral oil, urea-based thickener, solid lubricant, and aliphatic amide were blended, the amount of wear was greatly reduced for both new oil and deteriorated oil (Examples 1 to 9).
本発明のグリース組成物は、優れた耐水性、機械的安定性、耐熱性を有し、低速で、高荷重の金属同士の摺動部において、耐摩耗性に優れ、しかも、高温での長時間の使用において、耐摩耗性が低下しないため、金属同士の摺動部を有する各種のジョイント、ギア、軸受などの潤滑に適用できる。 The grease composition of the present invention has excellent water resistance, mechanical stability and heat resistance, and is excellent in wear resistance at a low speed, high load metal-to-metal sliding portion and long at high temperature. Since wear resistance does not decrease over time, it can be applied to lubrication of various joints, gears, bearings and the like having sliding portions between metals.
Claims (7)
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JP2012047750A JP5931510B2 (en) | 2012-03-05 | 2012-03-05 | Grease composition |
KR1020147027505A KR102051688B1 (en) | 2012-03-05 | 2013-03-01 | Grease composition |
US14/382,851 US20150024981A1 (en) | 2012-03-05 | 2013-03-01 | Grease composition |
PCT/JP2013/055624 WO2013133149A1 (en) | 2012-03-05 | 2013-03-01 | Grease composition |
SG11201404818TA SG11201404818TA (en) | 2012-03-05 | 2013-03-01 | Grease composition |
EP13757298.8A EP2824167B1 (en) | 2012-03-05 | 2013-03-01 | Grease composition |
CN201380012569.3A CN104160006A (en) | 2012-03-05 | 2013-03-01 | Grease composition |
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EP (1) | EP2824167B1 (en) |
JP (1) | JP5931510B2 (en) |
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JP2016160356A (en) * | 2015-03-02 | 2016-09-05 | Jxエネルギー株式会社 | Grease composition |
WO2016143807A1 (en) * | 2015-03-09 | 2016-09-15 | Jxエネルギー株式会社 | Grease composition |
WO2018180826A1 (en) * | 2017-03-30 | 2018-10-04 | Ntn株式会社 | Grease composition, rolling bearing and hub bearing |
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Also Published As
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SG11201404818TA (en) | 2014-11-27 |
KR20140129350A (en) | 2014-11-06 |
EP2824167A1 (en) | 2015-01-14 |
JP5931510B2 (en) | 2016-06-08 |
CN104160006A (en) | 2014-11-19 |
EP2824167A4 (en) | 2015-09-23 |
WO2013133149A1 (en) | 2013-09-12 |
KR102051688B1 (en) | 2019-12-03 |
EP2824167B1 (en) | 2018-08-08 |
US20150024981A1 (en) | 2015-01-22 |
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