CN1723268A - Urea grease composition - Google Patents
Urea grease composition Download PDFInfo
- Publication number
- CN1723268A CN1723268A CN200380105694.5A CN200380105694A CN1723268A CN 1723268 A CN1723268 A CN 1723268A CN 200380105694 A CN200380105694 A CN 200380105694A CN 1723268 A CN1723268 A CN 1723268A
- Authority
- CN
- China
- Prior art keywords
- compound
- grease composition
- urea grease
- molybdenum
- alkyl
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 239000004519 grease Substances 0.000 title claims abstract description 125
- 239000000203 mixture Substances 0.000 title claims abstract description 83
- 239000004202 carbamide Substances 0.000 title claims abstract description 76
- 230000001050 lubricating effect Effects 0.000 claims abstract description 59
- 150000001875 compounds Chemical class 0.000 claims abstract description 33
- 239000002199 base oil Substances 0.000 claims abstract description 26
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 22
- 125000004417 unsaturated alkyl group Chemical group 0.000 claims abstract description 14
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 37
- 230000008719 thickening Effects 0.000 claims description 36
- 239000003921 oil Substances 0.000 claims description 31
- 239000000654 additive Substances 0.000 claims description 22
- 230000000996 additive effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 239000005078 molybdenum compound Substances 0.000 claims description 7
- 150000002752 molybdenum compounds Chemical class 0.000 claims description 7
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 claims description 6
- XYRMLECORMNZEY-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S XYRMLECORMNZEY-UHFFFAOYSA-B 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 claims description 5
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 239000010685 fatty oil Substances 0.000 claims description 2
- 239000002562 thickening agent Substances 0.000 abstract description 8
- 125000006840 diphenylmethane group Chemical group 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 description 61
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 28
- -1 carbamide compound Chemical class 0.000 description 20
- 238000012360 testing method Methods 0.000 description 20
- 150000001412 amines Chemical class 0.000 description 14
- 239000002480 mineral oil Substances 0.000 description 12
- 235000010446 mineral oil Nutrition 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- 150000003672 ureas Chemical class 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000003981 vehicle Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000013329 compounding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 5
- YSQZSPCQDXHJDJ-UHFFFAOYSA-N 1-(pentyldisulfanyl)pentane Chemical compound CCCCCSSCCCCC YSQZSPCQDXHJDJ-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 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 5
- 239000004711 α-olefin Substances 0.000 description 5
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 4
- 239000004305 biphenyl Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000002347 octyl group Chemical group [H]C([*])([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 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- QDAYJHVWIRGGJM-UHFFFAOYSA-B [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Mo+4].[Mo+4].[Mo+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QDAYJHVWIRGGJM-UHFFFAOYSA-B 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920013639 polyalphaolefin Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 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
- 239000012990 dithiocarbamate Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- JGSUMMPGKPITGK-UHFFFAOYSA-L zinc;n,n-dipentylcarbamodithioate Chemical compound [Zn+2].CCCCCN(C([S-])=S)CCCCC.CCCCCN(C([S-])=S)CCCCC JGSUMMPGKPITGK-UHFFFAOYSA-L 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- KHBQMWCZKVMBLN-UHFFFAOYSA-N Benzenesulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=C1 KHBQMWCZKVMBLN-UHFFFAOYSA-N 0.000 description 1
- IAIREOVCYIUUFW-UHFFFAOYSA-N C(N)(S)=S.C(CC)[Zn]CCC Chemical compound C(N)(S)=S.C(CC)[Zn]CCC IAIREOVCYIUUFW-UHFFFAOYSA-N 0.000 description 1
- IRPWJYUOZXZLBH-UHFFFAOYSA-N C(N)(S)=S.C(CCCCC)[Zn]CCCCCC Chemical compound C(N)(S)=S.C(CCCCC)[Zn]CCCCCC IRPWJYUOZXZLBH-UHFFFAOYSA-N 0.000 description 1
- IHQXOQFIYDEWOP-UHFFFAOYSA-N C(N)(S)=S.C(CCCCCCCCC)[Zn]CCCCCCCCCC Chemical compound C(N)(S)=S.C(CCCCCCCCC)[Zn]CCCCCCCCCC IHQXOQFIYDEWOP-UHFFFAOYSA-N 0.000 description 1
- DQEUXJHPDLYGDM-UHFFFAOYSA-N C(N)(S)=S.C(CCCCCCCCCCC)[Zn]CCCCCCCCCCCC Chemical compound C(N)(S)=S.C(CCCCCCCCCCC)[Zn]CCCCCCCCCCCC DQEUXJHPDLYGDM-UHFFFAOYSA-N 0.000 description 1
- ZEMTVJMMDASOJD-UHFFFAOYSA-L C(N)([S-])=S.C(C(C)C)[Mo+2]CC(C)C.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(C(C)C)[Mo+2]CC(C)C.C(N)([S-])=S ZEMTVJMMDASOJD-UHFFFAOYSA-L 0.000 description 1
- SRGBOOLFTNLMAM-UHFFFAOYSA-K C(N)([S-])=S.C(C)C(C[Mo+3])CCCC.C(N)([S-])=S.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(C)C(C[Mo+3])CCCC.C(N)([S-])=S.C(N)([S-])=S SRGBOOLFTNLMAM-UHFFFAOYSA-K 0.000 description 1
- OPMRFKPVPOVYOM-UHFFFAOYSA-M C(N)([S-])=S.C(C)C(C[Zn+])CCCC Chemical compound C(N)([S-])=S.C(C)C(C[Zn+])CCCC OPMRFKPVPOVYOM-UHFFFAOYSA-M 0.000 description 1
- ARRJOFILQMJZBX-UHFFFAOYSA-K C(N)([S-])=S.C(C)C1=C(C=CC=C1)[Mo+3].C(N)([S-])=S.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(C)C1=C(C=CC=C1)[Mo+3].C(N)([S-])=S.C(N)([S-])=S ARRJOFILQMJZBX-UHFFFAOYSA-K 0.000 description 1
- NGFOGSNMAPNYQB-UHFFFAOYSA-M C(N)([S-])=S.C(C)C1=C(C=CC=C1)[Zn+] Chemical compound C(N)([S-])=S.C(C)C1=C(C=CC=C1)[Zn+] NGFOGSNMAPNYQB-UHFFFAOYSA-M 0.000 description 1
- WMUXXHUTOBNJTJ-UHFFFAOYSA-L C(N)([S-])=S.C(CC)[Mo+2]CCC.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(CC)[Mo+2]CCC.C(N)([S-])=S WMUXXHUTOBNJTJ-UHFFFAOYSA-L 0.000 description 1
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- PIDKRDARCMFBQY-UHFFFAOYSA-M C(N)([S-])=S.C(CCCCC)C1=C(C=CC=C1)[Zn+] Chemical compound C(N)([S-])=S.C(CCCCC)C1=C(C=CC=C1)[Zn+] PIDKRDARCMFBQY-UHFFFAOYSA-M 0.000 description 1
- HPBQWGIICLPEPU-UHFFFAOYSA-L C(N)([S-])=S.C(CCCCC)[Mo+2]CCCCCC.C(N)([S-])=S Chemical compound C(N)([S-])=S.C(CCCCC)[Mo+2]CCCCCC.C(N)([S-])=S HPBQWGIICLPEPU-UHFFFAOYSA-L 0.000 description 1
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- ICMNEWZAJUVGAK-UHFFFAOYSA-M C(N)([S-])=S.C(CCCCCCC)C1=C(C=CC=C1)[Zn+] Chemical compound C(N)([S-])=S.C(CCCCCCC)C1=C(C=CC=C1)[Zn+] ICMNEWZAJUVGAK-UHFFFAOYSA-M 0.000 description 1
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- 238000006386 neutralization reaction Methods 0.000 description 1
- XYGMTBGUABLGQJ-UHFFFAOYSA-N octadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCN.CCCCCCCCCCCCCCCCCCN XYGMTBGUABLGQJ-UHFFFAOYSA-N 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229960002317 succinimide Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 description 1
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 description 1
- ZNCAMSISVWKWHL-UHFFFAOYSA-L zinc;butoxy-butylsulfanyl-oxido-sulfanylidene-$l^{5}-phosphane Chemical compound [Zn+2].CCCCOP([O-])(=S)SCCCC.CCCCOP([O-])(=S)SCCCC ZNCAMSISVWKWHL-UHFFFAOYSA-L 0.000 description 1
- GOQCSVOOQKFAKT-UHFFFAOYSA-L zinc;n,n-bis(2-methylpropyl)carbamodithioate Chemical compound [Zn+2].CC(C)CN(C([S-])=S)CC(C)C.CC(C)CN(C([S-])=S)CC(C)C GOQCSVOOQKFAKT-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
A urea grease composition comprising a lubricating base oil and from 2 to 30 wt.% of a thickening agent, with respect to the total weight of the urea grease composition and wherein the thickening agent is selected from: (1) a mixture of a compound (a) and a compound (b), containing compound (a) at 20 to 80 mol %, relative to the total amount of compound (a) and compound (b); (2) a mixture formed by mixing with a compound (c) with a mixture (1); or (3) a compound (c) alone, wherein the compounds are represented by the general formulae (a) R1NHCONHR2NHCONHR1; (b) R3NHCONHR2NHCONHR3; and (c) R1NHCONHR2NHCONHR3, and wherein R2 is a diphenylmethane group, R1 is a C6-10 saturated alkyl group and R3 is a C14-40 saturated and/or unsaturated alkyl group wherein unsaturated alkyl groups constitute at least 20 mol % of the R3 alkyl group.
Description
The present invention relates to urea grease composition.
Urea grease is known as thermotolerance lubricating grease, because it has higher dropping point and better thermostability than containing the common Lithium soap grease of lithium soap as thickening material.
Find that in recent years urea grease is than having better wear resistance and oilness with various metallic soaps and inorganic materials as the lubricating grease of thickening material.
It is believed that the good wear resisting property of urea grease is can form oxide film again because it can form the urea film at lubricated slipping plane.
Urea grease has obtained increasing rapidly, because lubricating grease can be conveniently used in typical grease lubrication position, bearing comprising various vehicle homokinetic joints, ball-joint, wheel bearing, alternator and cooling fan, the ball screw of lathe and linear guides, the various sliding areas of Architectural Equipment and the bearing of steel systeming equipment and gear and various other industrial machinery.
The consumption of urea grease grows steadily in particular applications, as comprise the various vehicle parts of CVJs (homokinetic joint), response at present to microminiaturized, weight minimizing and environmental friendliness and in the steel systeming equipment that needs highly heat-resistant, rub resistance lubricating grease the trend of demand, strong request has the frictional dissipation of weather resistance and reduction at sliding area.
Though the performance of urea grease is every year all in development, according to desired application, up-to-date urea grease is still waiting to improve.
For example, domestic electric appliance and office automation equipment especially require to have suitable sound property, and vehicle component need have requisite low-noise performance, resistance to abrasion and low friction performance simultaneously.
The noise that produces as domestic electric appliance and office automation equipment with vacuum cleaner be familiar with example, it is increasingly serious that noise reduction is just becoming, because along with reducing and the increase of suction in this equipment of this equipment size, bearing wherein is 30,000-40, the high rotating speed of 000rmp rotates down, thereby causes high aerodynamic noise and rolling noise.
In addition, the noise minimization that hope produces the bearing of pick up camera, video tape recorder and electronics is because these noises may have a negative impact as signal error and to electronic component.
So if a kind ofly can guarantee that the grease applications of lower noise and high lubricity will be very effective in above-mentioned bearing, thereby the research and development with the lubricating grease that improves performance are desired.
Also have, under the situation that progress energy-conservation and joint fuel is further quickened, the smoothness of vehicle is also being improved day by day, is also improving day by day so form the required quality level of the single parts of vehicle.
So for the sliding area of these parts, application can guarantee that the lubricating grease of lower noise and high lubricity desires very much, require therefore that research and development are a kind of to have the lubricating grease that improves performance.
Need the example of lubricated vehicle part to comprise various types of bearings, cooling fan bearing as scatterer, the bearing of compressor of air conditioning machinery and alternative electric generation machine bearing, homokinetic joint, the universal joint of power universal drive shaft, the gear of turning device and bearing, ball screw, the sliding area of rack guide and ball-joint.
Have lower noise and a low friction level and smooth lubricated be directly connected to energy-conservation, joint fuel and vehicle steady, the lubricating grease of performance excellent properties is very useful in these are used.Therefore, need lubricating grease more efficiently.
On the other hand, need in more the example of the parts that lubricate to comprise the bearing of various automatic assembly machine hands, ball screw and linear guides, the various sliding areas of construction equipment and the various bearings of steel systeming equipment of lathe at other industry neck, they compare in low noise direct requirement restricted with vehicle, domestic electric appliance and office automation equipment.
Although the low noise direct requirement to lubricating grease is restricted in this type of is used, but the noise that comes from lubricating grease not only is the stirring of lubricating grease and the physical noise that flows and cause, but also is the noise (metal that the noise that foreign matter causes on the interface causes with the oil film breakage and the noise that produces that contacts of metal) that the interface between the lubricated surface produces.
Certainly, can think and be wanting in and be easy to cause damaged and wearing and tearing and the unacceptable generating noise on the interface of oil film by the sub-standard lubricating grease that foreign matter pollutes lubricated.Therefore, its noise reduction performance can not be enhanced, unless improve oilness.That is to say that the lubricating grease with good noise reduction performance means that its oilness also is improved.
Further explain the lower noise character of lubricating grease as an example with bearing.Substantially, the lubrication mechanism of lubricating grease on rolling element bearing be, is filled in lubricating grease in bearing and temporarily swings owing to rotate and disperse, after this, along with the repetition of stirring and channelling effect, the lubricating grease or the oil of trace are fed to sliding area, thus lubricated this sliding area.Wherein, show as bearing noise at the rolling element of bearing and the sound of the generation of the vibrations between the rolling surface.
The operating accuracy of bearing, foreign matter to the pollution of lubricating grease and in lubricating grease the particle of thickening material all be the factor that causes noise.Sound property is not only along with the form of invading dirt in the lubricating grease and dust and type but also the noticeable change along with the form of the thickening material of being introduced and type.In addition, these materials often become level and smooth lubricated obstacle.
In general, for urea grease, can be scattered in coil neutralization maintenance lubricating grease state as thickening material and they by the carbamide compound that amine and isocyanate reaction are obtained.
Urea grease generally is better than soap lubricating grease on wear resisting property, be easy to be adsorbed onto the metallic surface because wherein be used as the carbamide compound of thickening material.But many aforementioned carbamide compounds that obtain by amine and isocyanate reaction are hard particulate state, therefore damaged noise reduction performance and level and smooth lubricating had disadvantageous effect.
JP-A-1-139696, JP-A-2-77494 and JP-A-6-17080 relate to the acoustic properties of urea grease.
JP-A-1-139696 discloses a kind of thickening material, and this thickening material comprises respectively by following general formula (a) and (b) two carbamide compounds (a) and the mixture (b) of expression:
(a)R
1NHCONHR
2NHCONHR
3
(b)R
4NHCONHR
5NHCONHR
6
R wherein
2Be the diphenylmethyl alkyl, R
1And R
3Each represents the saturated alkyl of C8 straight chain or branching, R
5Represent methylene phenyl or two methylene phenyl, and R
4And R
6Each represents the aromatic group of alkyl replacement or the aromatic group that halogen replaces.
JP-A-2-77494 discloses a kind of thickening material, comprises aforementioned formula (a) and (b) two carbamide compounds (a) and the mixture (b) of expression, still, and R wherein
2The two methylene phenyl of representative, R
1And R
3Each represents the saturated or unsaturated alkyl of C18 straight chain or branching, R
5Represent the diphenylmethyl alkyl, and R
4And R
6Represent the saturated alkyl of C8 straight chain or branching.
JP-A-6-17080 discloses a kind of thickening material, comprises aforementioned formula (a) and (b) two carbamide compounds (a) and the mixture (b) of representative, still, and R wherein
2Represent the methylene phenyl, R
1And R
3Each represents the saturated or unsaturated alkyl of C16-18 straight chain or branching, R
5Represent the diphenylmethyl alkyl, and R
4And R
6Represent the saturated alkyl of C8 straight chain or branching.
It below is other document example about acoustic properties.
JP-A-3-28299 discloses a kind of grease composition, and wherein comprise alkyl diphenyl base ether oil and mix as the thickening material of two represented carbamide compounds of the base oil of basal component and aforementioned formula (a), still, R wherein
2Represent the aryl of C6-15, R
1And R
3Represent the C8-18 straight chained alkyl, precondition is that the C8 alkyl is at R
1And R
3Binding substances in ratio be 60-100mol%.
The 8th page table 2 of JP-A-2-80493 discloses a kind of composition that is used for conical rolling bearing, said composition prepares with the polyolefine of 0.5-5wt% oxidation modification and/or the polyolefine of sour modification by mixing urea grease, and further disclosing this urea thickening material in table 2 is from the C8 octylame, C18 stearylamine (octadecylamine) and MDI (ditan-4,4 '-vulcabond) prepared, and illustrated that these reagent have favorable influence to mechanical stability, wet shear stability and pressure transmission ability.
JP-A-3-243696 discloses two carbamide compounds of a kind of aforementioned formula (a) representative, wherein R
2Be 3,3 '-dimethyl-4,4 '-diphenylene, R
1And R
3It is the mixed group of C8-18 alkyl and oil base.The deficiency of the disclosed technology of this document is: consistency index (yield) is to such an extent as to can not to obtain having degree separating of oil under the lubricating grease of denseness about 250 and the hot conditions excessive if cross the low amount that does not increase thickening material.
JP-A-58-185693 discloses a kind of two urea greases, and it improves performance by introducing one or more additives that are selected from alkenyl Succinic Acid imide, benzene sulfonamide acid metal salt or the mahogany acid metal-salt.This document further discloses and has utilized vulcabond and monoamine to prepare two urea greases, and has enumerated aliphatic amine, as stearylamine and oleyl amine, and aromatic amine, as hexahydroaniline, as the example of above-mentioned monoamine.File has illustrated that also described lubricating grease has satisfied sound property.
Below quote other scheme that production method improves sound property of investigating.
For example, JP-A-2-4895 discloses a kind of production method of urea grease, this production method can improve the urea grease sound property, wherein isocyanic ester and amine add in the base oil and make its reaction each other under temperature 60-120 ℃, utilize kneader that the mixture of gained carbamide compound and base oil is carried out dispersion treatment then, the heat-up rate of following with 0.5-2 ℃/minute is heated to 160-180 ℃.
JP-A-3-190996 discloses the method that a kind of preparation allegedly has the lubricating grease of good sound property, wherein, dissolving or the base oil that disperseed the base oil and the dissolving of isocyanic ester or disperseed amine mixed by impact effect by pressurization in reactor cause their reactions to each other, perhaps they are pressurized and be incorporated under the impeller of rotation, thereby cause that they react each other.
In addition, JP-A-3-231993 discloses a kind of method for preparing the lower noise urea grease, and this method comprises the carbamide compound of heating by aforementioned formula (a) representative of 2-30wt%, wherein R
1And R
3Be the C8-18 saturated alkyl, R
2It is the methylene phenyl, diphenylmethyl alkyl or dimethyl diphenylene, the mixture of forming with the base oil of 98-70wt% to 170-230 ℃ so that carbamide compound be dissolved in fully in the base oil first step and with second step of at least 5 ℃/seconds the speed cooling solution that first step was obtained.
As putting down in writing in the above file, tolylene diisocyanate (TDI) or 3 in many cases, 3 '-dimethyl-4,4 '-diphenylene vulcabond (TODI) are used as the parent material of the urea grease composition that obtains to have good sound property.
For their preparation method, can allow be reflected in the autoclave and carry out by using kneading machine, or the lubricating grease that heating then mixes two or more types dissolves the reunion that they avoid carbamide compound.
Along with the rising of urea grease output with to the growth of requirement of lower noise lubricating grease, also have needs to the better sound property of the cleaning environment of LUBRICATING GREASES and the finished product.
Many users need the high lubricating grease of a kind of price lower performance, and use expensive TODI also to need the urea grease of complicated production process will not have commercial competitiveness as starting material.
Further from the angle of health and safety, the increase of lubricating grease output requires the more energy of cost to pay close attention to as the disposal of raw-material TDI and the installation of specific installation.As a result, require to consider to increase the production facility that improves sound property and prolong the production process time.
The present invention has had been found that specific urea grease composition, and said composition has gratifying consistency index (yield), at high temperature lower separating of oil degree and outstanding sound property and lubricity.In addition, described urea grease composition can be produced in traditional LUBRICATING GREASES facility, does not need special equipment such as autoclave or kneader to disperse thickening material.
Urea grease composition according to the present invention has good lubricity and can easily spread and be adsorbed onto consumingly friction surface on friction surface.In addition, in described grease composition the thickening function of being intervened of carbamide compound not as wherein the obstacle of becoming of foreign matter.Therefore, with the synergy of additive under, urea grease composition of the present invention can not cause noise, and in addition since its visco-elasticity can also strengthen oil film strength and can form more effective lubricant film at sliding surface.Therefore, can obtain the effect of ideal grease lubrication.
According to the invention provides urea grease composition, it comprises lubricating base oil and with respect to the thickening material of the 2-30wt% of the gross weight of urea grease composition, wherein said thickening material is selected from:
(1) mixture of inclusion compound (a) and compound (b), this mixture contains the compound (a) with respect to the 20-80mol% of the total amount of compound (a) and compound (b);
(2) by mixing cpd (c) and the formed mixture of mixture (1); Or
(3) independent compound (c),
Wherein compound is to be represented by following general formula separately:
(a)R
1NHCONHR
2NHCONHR
1，
(b) R
3NHCONHR
2NHCONHR
3With
(c) R
1NHCONHR
2NHCONHR
3Expression,
R wherein
2Be the diphenylmethyl alkyl, R
1Be C6-10 saturated alkyl and R
3Be the saturated and/or unsaturated alkyl of C14-20, wherein unsaturated alkyl accounts for R
3At least the 20mol% of alkyl.
Preferably, unsaturated alkyl accounts for R
3At least 2 5mol% of alkyl, more preferably 30mol% at least.
In according to a preferred embodiment of the present invention, R
1Be C8 alkyl and/or R
3Be the saturated and/or unsaturated alkyl of C14-20, wherein account for R
3At least the unsaturated alkyl of the 20mol% of alkyl is an oil base.
In according to a preferred embodiment of the present invention, urea grease composition comprises lubricating base oil and with respect to the thickening material of the 2-30wt% of the gross weight of urea grease composition, wherein said thickening material is selected from:
(1) mixture of inclusion compound (a) and compound (b), this mixture contains the compound (a) with respect to the 20-80mol% of the total amount of compound (a) and compound (b);
(2) by mixing cpd (c) and the formed mixture of mixture (1); Or
(3) independent compound (c),
Wherein compound is to be represented by following general formula separately:
(a)R
1NHCONHR
2NHCONHR
1
(b) R
3NHCONHR
2NHCONHR
3With
(c)R
1NHCONHR
2NHCONHR
3
R wherein
2Be the diphenylmethyl alkyl, R
1Be the C8 saturated alkyl, R
3Be the saturated and/or unsaturated alkyl of C14-20, wherein this alkyl should require it to comprise the oil base composition of 20mol% at least.
In the present invention, when above-mentioned thickening material with 2-30wt% with respect to the gross weight of urea grease composition, when the amount of preferred 5-20wt% is incorporated in the lubricating base oil, the urea grease that can obtain to have outstanding characteristic and performance.When as the content of the carbamide compound of thickening material during less than 2wt%, thickening effectiveness is low and can not forms lubricating grease.On the other hand, when the content as the carbamide compound of thickening material surpassed 30wt%, lubricating grease became too hard and therefore can't obtain lubricant effect.
In urea grease composition, when the ratio of compound (a), with respect to the total amount of compound (a) and compound (b), during less than 20mol% or above 80mol% in mixture (1), then use this mixture that seldom effect will be arranged, and on anti-acoustic capability and separating of oil degree, do not improve.
The lubricating base oil that is used for urea grease combination of the present invention can be one or more vegetables oil, mineral oil easily, and/or synthetic oil.
The base oil in mineral source can be a mineral oil, for example the mineral oil of solvent treatment or hydrotreatment production.
The base oil in synthetic source can be typical hydrocarbon ils, as the C10-C50 hydrocarbon polymer, and alpha-olefin liquid polymer (poly-(alpha-olefin)) for example, the synthetic oil of ester type, the synthetic oil of silicone oil and/or ethers type.It can also be their mixture.
The example of the mineral oil that can conveniently utilize comprises the member company of Royal Dutch/Shell Group with trade(brand)name " HVI ", those products that " MVIN " or " HMVIP " sells.
Also can use the base oil of that type of poly-alpha olefins and the preparation of the hydrogenation isomerization by wax, those products of selling with trade(brand)name " XHVI " (trade mark) as the member company of Royal Dutch/Shell Group.
In preferred embodiments, urea grease composition of the present invention further comprises a kind of zn cpds as additive.
The specific examples that can be advantageously used in the zn cpds in the urea grease composition of the present invention comprises zinc dithiocarbamate, for example, zinc diethyldithiocarbamate, the dipropyl zinc dithiocarbamate, zinc dibutyl dithiocarbamate, zinc diamyldithiocarbamate, the dihexyl zinc dithiocarbamate, the didecyl zinc dithiocarbamate, zinc diisobutyldithiocarbamate, two (2-ethylhexyl) zinc dithiocarbamate, zinc diamyldithiocarbamate, the dilauryl zinc dithiocarbamate, two (octadecyl) zinc dithiocarbamates and phenylbenzene zinc dithiocarbamate or the like and xylyl zinc dithiocarbamate, two (3,5-dimethylphenyl) zinc dithiocarbamate, two (ethylphenyl) zinc dithiocarbamate, two (propyl group phenyl) zinc dithiocarbamate, two (butyl phenyl) zinc dithiocarbamate, two (amyl group phenyl) zinc dithiocarbamate, two (hexyl phenyl) zinc dithiocarbamate, two (octyl phenyl) zinc dithiocarbamate, two (nonyl phenyl) zinc dithiocarbamate, two (decyl phenyl) zinc dithiocarbamate, two (dodecylphenyl) zinc dithiocarbamate, two (tetradecyl phenyl) zinc dithiocarbamate and two (hexadecyl phenyl) zinc dithiocarbamate.Similarly, the specific examples of zinc dithiophosphate comprises diethyldithiophosphoric acid zinc, the dipropyl zinc dithiophosphate, zinc dibutyldithiophosphate, diamyl disulfide is for zinc phosphate, the dihexyl zinc dithiophosphate, the didecyl zinc dithiophosphate, the diisobutyl zinc dithiophosphate, two (2-ethylhexyl) zinc dithiophosphate, diamyl disulfide is for zinc phosphate, the dilauryl zinc dithiophosphate, two (octadecyl) zinc dithiophosphate, phenylbenzene zinc dithiophosphate and two (tolyl) zinc dithiophosphate, two (3,5-dimethylphenyl) zinc dithiophosphate, two (ethylphenyl) zinc dithiophosphate, two (propyl group phenyl) zinc dithiophosphate, two (butyl phenyl) zinc dithiophosphate, two (amyl group phenyl) zinc dithiophosphate, two (hexyl phenyl) zinc dithiophosphate, two (heptyl phenyl) zinc dithiophosphate, two (octyl phenyl) zinc dithiophosphate, two (nonyl phenyl) zinc dithiophosphate, two (decyl phenyl) zinc dithiophosphate, two (dodecylphenyl) zinc dithiophosphate, two (tetradecyl phenyl) zinc dithiophosphate and two (hexadecyl phenyl) zinc dithiophosphate.Metallicity element in above-mentioned Organometallic zinc compound such as S or P can form the film of anti-extreme pressure of iron phosphide or iron sulphide etc. with the iron reaction of friction surface; Additive itself decompose and with other additive formation protective membrane that reacts to each other.
In addition, surprisingly, because the additive and the synergistic effect with urea thickening material of outstanding ability that is penetrated into the interface and adsorptivity of the present invention of above-mentioned S-P type, urea grease composition of the present invention shows outstanding lubricity.
Urea grease composition of the present invention comprises therein that advantageously molybdenum compound is as additive.
The specific examples that can be advantageously used in the molybdenum compound in the urea grease composition of the present invention comprises molybdenum dithiocarbamate, for example, the diethyldithiocar bamic acid molybdenum, the dipropyl molybdenum dithiocarbamate, the dibutyl dithiocaarbamate molybdenum, the diamyl dithiocarbamate molybdenum, the dihexyl molybdenum dithiocarbamate, the didecyl molybdenum dithiocarbamate, the diisobutyl molybdenum dithiocarbamate, two (2-ethylhexyl) molybdenum dithiocarbamate, the diamyl dithiocarbamate molybdenum, the dilauryl molybdenum dithiocarbamate, two (octadecyl) molybdenum dithiocarbamates and phenylbenzene molybdenum dithiocarbamate or the like and two (tolyl) molybdenum dithiocarbamate, two (3,5-dimethylphenyl) molybdenum dithiocarbamate, two (ethylphenyl) molybdenum dithiocarbamate, two (propyl group phenyl) molybdenum dithiocarbamate, two (butyl phenyl) molybdenum dithiocarbamate, two (amyl group phenyl) molybdenum dithiocarbamate, two (hexyl phenyl) molybdenum dithiocarbamate, two (octyl phenyl) molybdenum dithiocarbamate, two (nonyl phenyl) molybdenum dithiocarbamate, two (decyl phenyl) molybdenum dithiocarbamate, two (dodecylphenyl) molybdenum dithiocarbamate, two (tetradecyl phenyl) molybdenum dithiocarbamate and two (hexadecyl phenyl) molybdenum dithiocarbamate; And molybdenum dithiophosphate, as diamyl disulfide for molybdenum phosphate, the dipropyl molybdenum dithiophosphate, the dibutyl molybdenum dithiophosphate, diamyl disulfide is for molybdenum phosphate, the dihexyl molybdenum dithiophosphate, the didecyl molybdenum dithiophosphate, the diisobutyl molybdenum dithiophosphate, two (2-ethylhexyl) molybdenum dithiophosphate, diamyl disulfide is for molybdenum phosphate, the dilauryl molybdenum dithiophosphate, two (octadecyl) molybdenum dithiophosphate, the phenylbenzene molybdenum dithiophosphate, with two (tolyl) molybdenum dithiophosphate, two (3,5-dimethylphenyl) molybdenum dithiophosphate, two (ethylphenyl) molybdenum dithiophosphate, two (propyl group phenyl) molybdenum dithiophosphate, two (butyl phenyl) molybdenum dithiophosphate, two (amyl group phenyl) molybdenum dithiophosphate, two (hexyl phenyl) molybdenum dithiophosphate, two (heptyl phenyl) molybdenum dithiophosphate, two (octyl phenyl) molybdenum dithiophosphate, two (nonyl phenyl) molybdenum dithiophosphate, two (decyl phenyl) molybdenum dithiophosphate, two (dodecylphenyl) molybdenum dithiophosphate, two (tetradecyl phenyl) molybdenum dithiophosphate and two (hexadecyl phenyl) molybdenum dithiophosphate, with the molybdenum compound that is described among the JP5-664 35B1, promptly be fatty oil, the reaction product in diethanolamine and molybdenum source.
Above-mentioned molybdenum compound is adsorbed onto on the metallic surface that constitutes slipping plane easily on one's own initiative, and owing to the heat that produces on the surface of friction is decomposed generation MoO
3And MoS
2, this MoS
2Diffusion of components enters in the metal and has the mechanism of action of protection surface of friction.
In addition, surprisingly, because the chemical property of these molybdenum compounds and physicochemical property such as the adsorptivity and the infiltrative synergistic effect of urea thickening material of the present invention, urea grease of the present invention shows outstanding lubricity.
Performance for further urea grease of the present invention can add additive such as oxidation inhibitor, corrosion inhibitor and anti-extreme pressure agent easily therein.
For example, oxidation inhibitor comprises alkylphenol, hindered phenol, alkylamine, diphenylamine and triazine oxidation inhibitor; Corrosion inhibitor comprises calcium sulphonate, sodium sulfonate, barium sulfonate and aminoderivative or carboxylic metallic salt; Comprise sulfurized oil or fat, sulfurized alkene, phosphoric acid ester, Tritolyl Phosphate, tri o cresyl thiophosphate alkyl ester, triphenyl thiophosphatephosphorothioate (triphenylphosphorothionates) with anti-extreme pressure agent.
The lubricant that is used for bearing advantageously contains urea grease composition of the present invention.
Therefore, the present invention further provides the method for lubricating bearings, this method comprises with urea grease composition filled bearing of the present invention.
In addition, the lubricant that is used on the slipping plane of machine of relative movement advantageously comprises urea grease composition of the present invention.
Therefore, the present invention further provides the method for the slipping plane of the machine that lubricates relative movement, this method comprises utilizes urea grease composition of the present invention to lubricate described slipping plane.
The present invention further provides the purposes of urea grease composition of the present invention as the noise reduction grease composition, particularly described grease composition is used to reduce the purposes of bearing noise.
Hereinafter reference example is described the present invention, but these embodiment are not used in and limit the scope of the invention.
Embodiment
Embodiment 1-5
In grease kettle, add, be heated near 50 ℃ in the MDI (ditan-4,4 '-vulcabond) of the ratio of compounding shown in the table 1 and the base oil of 60 weight parts; Behind dissolving MDI, slow adding has been scattered in the octylame in the 20 weight part base oils under stirring fast.After about 10 minutes, the oil base amine that is scattered in the 20 weight part base oils is added, continue to stir.
The temperature of the content of grease kettle will raise because of the reaction of vulcabond and amine, then by being heated to 168 ℃ and under this temperature, keep finishing in about 30 minutes reaction, cool to room temperature and processing and obtain lubricating grease in three-roll mill then subsequently.
Embodiment 6 and 7
In grease kettle, add in the MDI of the compounding ratio shown in the table 1 and the base oil of 60 weight parts, be heated to about 50 ℃, then behind dissolving MDI, add the mixture that is dissolved in octylame in the base oil of 40 weight parts and oleyl amine in this solution lentamente and with the mixture vigorous stirring.The content of grease kettle is heated to 168 ℃ and kept about 30 minutes and finish reaction under this temperature, then cool to room temperature and obtain lubricating grease with the three-roll mill processing then.
Embodiment 8-10
The compounding ratio is illustrated in table 2.Utilize spatula mix equably the lubricating grease of embodiment 1 of 50 weight parts and 50 weight parts embodiment 6 lubricating grease and obtain the lubricating grease of embodiment 8.
Utilize spatula mix equably the lubricating grease of embodiment 2 of 50 weight parts and 50 weight parts embodiment 6 lubricating grease and obtain the lubricating grease of embodiment 9.
Utilize spatula mix equably the lubricating grease of embodiment 3 of 50 weight parts and 50 weight parts embodiment 6 lubricating grease and obtain the lubricating grease of embodiment 10.
Embodiment 11-16
In grease kettle, add MDI (ditan-4 in the compounding ratio shown in table 3 and 4,4 '-vulcabond) and the base oil of 60 weight parts, be heated to about 50 ℃, behind dissolving MDI, slow adding has been dissolved in 20 weight part octylames in the base oil under stirring fast then.After about 10 minutes, will add at the base oil of other amine the octyl amine in being blended in composition shown in the table 3 and 20 weight parts, continue to stir.
The temperature of the content of grease kettle raises by the reaction of vulcabond and amine, then by being heated to 168 ℃ and under this temperature, keep finishing in about 30 minutes reaction, then be cooled to 80 ℃, be added on the additive that table 3 is listed subsequently, in three-roll mill, handle obtaining lubricating grease then.
Comparative Examples 1-15
Add in grease kettle by the vulcabond of the compounding ratio shown in the table 5-7 and the base oil of 60 weight parts, behind dissolving vulcabond under the following temperature, slow adding has been scattered in the amine in the base oil of 40 weight parts under stirring fast.
The content of grease kettle is heated to 168 ℃ and kept about 30 minutes and finish reaction under this temperature, then cool to room temperature is handled in three-roll mill then and obtained lubricating grease.
In Comparative Examples 13-15, behind cool to room temperature, be added on the additive of listing in the table 7, in three-roll mill, handle then and obtain lubricating grease.
In table 1 and table 3-7,
MDI is a ditan-4,4 '-vulcabond; About 50 ℃ of Heating temperature
TDI is 2,4/2,6 (80%/20%) toluene (trilene)-4,4 '-vulcabond; About 30 ℃ of Heating temperature
TODI is 3,3 '-two (toluene)-4,4 '-vulcabond; About 75 ℃ of Heating temperature.
Implement and the comparative example shown in oil 100 ℃ of following viscosity, mineral oil is 10.12mm
2/ s, alkyl diphenyl base ether oil is 12.69mm
2/ s, poly-(alpha-olefin) oil is 12.70mm
2/ s.
In the thickening material mol% hurdle of table 1 and 2
(a) represent R
1NHCONHR
2NHCONHR
1
(b) represent R
3NHCONHR
2NHCONHR
3With
(c) represent R
1NHCONHR
2NHCONHR
3
R wherein
2Be the diphenylmethyl alkyl, R
1Be C8 saturated alkyl and R
3It is the C18 unsaturated alkyl;
(1) refer to two carbamide compounds of embodiment 1,
(2) refer to two carbamide compounds of embodiment 2,
(3) refer to embodiment 3 two carbamide compounds and
(4) refer to two carbamide compounds of embodiment 6.
Table 3, the additive in table 4 and the table 7:
Additive A is the main Zn-DTP (main zinc dithiophosphate) with C4 and C5 alkyl,
Additive B is the less important Zn-DTP (less important zinc dithiophosphate) with C3 and C6 alkyl,
Addition of C is the Zn-DTC (zinc dithiocarbamate) with C5 alkyl,
Additive D is the Mo-DTC (molybdenum dithiocarbamate) with C8 alkyl,
Additive E is the molybdenum complex chemical compound of describing among the JP5-66435 B1,
Additive F is the Mo-DTP (molybdenum dithiophosphate) with main C8 alkyl,
Additive G is by 2, the slurry material that two (n-sulphur the octyl group)-6-(4-hydroxyl-3,5-two-t-butylamine) of 4--1,3,5-triazines and octyldiphenylamine form with 50% concentration and mineral oil compounding in 1: 2 ratio.
Table 1
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| MDI(g) | 10.84 | 9.88 | 8.91 | 10.84 | 9.88 | 9.50 | 9.50 |
| Octylame (g) | 9.15 | 6.10 | 3.05 | 9.15 | 6.10 | 4.91 | 4.91 |
| Oleyl amine (g) | 4.01 | 8.02 | 12.04 | 4.01 | 8.02 | 9.59 | 9.59 |
| Mineral oil (g) | 176 | 176 | 176 | - | - | 176 | - |
| Alkyl diphenyl base ether (g) | - | - | - | 176 | 176 | - | - |
| Gather (alpha-olefin) (g) | - | - | - | - | - | - | 176 |
| Thickening material % | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Thickening material (mol%) | (a)/(b)＝75 /25 | (a)/(b)＝50 /50 | (a)/(b)＝ 25/75 | (a)/(b)＝75 /25 | (a)/(b)＝ 50/50 | (c)＝100 | (c)＝100 |
| Denseness (dmm) | 245 | 241 | 241 | 232 | 245 | 225 | 247 |
| Dropping point (℃) | ＞250 | ＞250 | ＞250 | ＞250 | ＞250 | ＞250 | ＞250 |
| Separating of oil degree (quality %) | 0.6 | 1.1 | 2.4 | 0.4 | 0.8 | 0.4 | 0.7 |
| Noise test behind the 120s | 5 | 12 | 12 | 10 | 8 | 7 | 7 |
Table 2
| Embodiment | 8 | 9 | 10 |
| Thickening material (mol%) | (1)+(6) (a)/(b)/(c) ＝37.5/12.5/50 | (2) + (6) (a)/(b)/(c)＝ 25/25/5 0 | (3)+(6) (a)/(b)/(c) ＝12.5/37.5/50 |
| Amount of thickener % | 12 | 12 | 12 |
| Denseness (dmm) | 232 | 235 | 233 |
| Dropping point (℃) | ＞250 | ＞250 | ＞250 |
| Separating of oil degree (quality %) | 0.5 | 0.4 | 0.4 |
| Noise test behind the 120s | 5 | 7 | 7 |
Table 3
| Embodiment | 11 | 12 | 13 | 14 |
| MDI(g) | 10.62 | 10.59 | 10.59 | 9.79 |
| Octylame (g) | 8.52 | 8.52 | 8.52 | 6.04 |
| Tetradecy lamine (g) | 0.15 | 0.12 | 0.12 | 0.20 |
| Hexadecylamine (g) | 0.36 | 0.33 | 0.33 | 1.67 |
| C16 amine (the C16 amine with two keys) (g) | 0.25 | 0.19 | 0.19 | - |
| Stearylamine (g) | 0.50 | 1.72 | 1.72 | 3.75 |
| Oleyl amine (g) | 3.60 | 2.52 | 2.52 | 2.52 |
| C20 amine (g) | - | 0.02 | 0.02 | 0.03 |
| Mineral oil (g) | 126 | 176 | 50 | 50 |
| Alkyl diphenyl base ether (g) | - | - | - | 76 |
| Gather (alpha-olefin) (g) | 50 | - | 126 | 50 |
| Amount of thickener % | 12 | 12 | 12 | 12 |
| Thickening material (mol%) | (a)/(b)＝70/ 30 | (a)/(b)＝70/ 30 | (a)/(b)＝70/ 30 | (a)/(b)＝50/ 50 |
| The unsaturated composition of R3 (mol%) | 78 | 55 | 55 | 30 |
| Additive A (g) | 2.0 | 2.0 | - | 2.0 |
| B(g) | - | - | 2.0 | - |
| C(g) | - | - | - | - |
| D(g) | - | - | 2.0 | 4.0 |
| E(g) | 4.0 | 2.0 | - | - |
| F(g) | - | 2.0 | 2.0 | - |
| G(g) | 2.0 | 2.0 | 2.0 | 2.0 |
| Denseness (dmm) | 255 | 243 | 253 | 248 |
| Dropping point (℃) | ＞250 | ＞250 | ＞250 | ＞250 |
| Separating of oil degree (quality %) | 1.8 | 1.3 | 1.1 | 0.9 |
| Noise test behind the 120s | 7 | 5 | 10 | 8 |
| ASTMD2246 Shell 4 anti-ball shock test (120rpm, 40kg, 75 ℃, 1h) mm | 0.55 | 0.54 | 0.49 | 0.51 |
| ASTMD3336 bearing test in work-ing life (150 ℃, No.6204, deep-groove bearing) | ＞1000 | ＞1000 | - | ＞1000 |
| Bowden rub(bing)test (room temperature, sliding velocity 10mm/s, surface pressure 1000Mpa) coefficientoffriction | 0.128 | 0.130 | 0.127 | 0.129 |
Table 4
| Embodiment | 15 | 16 |
| MDI(g) | 9.00 | 9.43 |
| Octylame (g) | 3.65 | 4.85 |
| Tetradecy lamine (g) | 0.28 | 0.32 |
| Hexadecylamine (g) | 2.32 | 2.73 |
| C16 amine (the C16 amine with two keys) (g) | - | - |
| Stearylamine (g) | 5.20 | 2.13 |
| Oleyl amine (g) | 3.50 | 4.54 |
| C20 amine (g) | 0.05 | - |
| Mineral oil (g) | 176 | 176 |
| Gather (alpha-olefin) (g) | - | - |
| Amount of thickener % | 12 | 12 |
| Thickening material (mol%) | (a)/(b)＝30/70 | (C)＝100 |
| R 3Unsaturated composition (mol%) | 30 | 45 |
| Additive A (g) | - | 1.0 |
| B(g) | - | - |
| C(g) | 2.0 | 1.0 |
| D(g) | - | - |
| E(g) | 4.0 | 3.0 |
| F(g) | - | 1.0 |
| G(g) | 2.0 | 2.0 |
| Denseness (dmm) | 240 | 235 |
| Dropping point (℃) | ＞250 | ＞250 |
| Separating of oil degree (quality %) | 2.2 | 1.5 |
| Noise test behind the 120s | 4 | 8 |
| ASTMD2246 Shell 4 anti-ball shock test (120rpm, 40kg, 75 ℃, 1h) mm | 0.52 | 0.48 |
| ASTMD3336 bearing test in work-ing life (150 ℃, No. 6204, deep-groove bearing) | - | ＞1000 |
| Bowden rub(bing)test (room temperature, sliding velocity 10mm/s, surface pressure 1000Mpa) coefficientoffriction | 0.126 | 0.129 |
Table 5
| The comparative example | 1 | 2 | 3 | 4 | 5 | 6 |
| MDI(g) | 11.08 | 7.95 | 12.93 | 11.88 | - | - |
| TODI(g) | - | - | - | - | 12.13 | 12.27 |
| TDI(g) | - | - | - | - | - | - |
| Octylame (g) | 12.20 | - | - | - | 11.87 | - |
| Oleyl amine (g) | - | 16.05 | - | - | - | 11.73 |
| P-Tolylamine (g) | - | - | 11.07 | - | - | - |
| P-chloroaniline (g) | - | - | - | 12.12 | - | - |
| Mineral oil (g) | 176 | 176 | 176 | 176 | 176 | 176 |
| Amount of thickener (%) | 12 | 12 | 12 | 12 | 12 | 12 |
| Denseness (dmm) | 279 | 258 | 326 | 400 | 325 | 372 |
| Dropping point (℃) | ＞250 | 185 | ＞250 | ＞250 | ＞250 | ＞250 |
| Separating of oil degree (mass%) | 1.2 | 3.9 | 2.2 | 7.6 | 6.6 | 3.1 |
| Noise test behind the 120s | 52 | 56 | 2229 | ＞10000 | 151 | 191 |
Table 6
| Comparative Examples | 7 | 8 | 9 | 10 | 11 | 12 |
| MDI(g) | - | - | - | - | - | - |
| TODI(g) | 13.25 | 12.21 | - | - | - | - |
| TDI(g) | - | - | 9.66 | 6.15 | 10.76 | 9.74 |
| Octylame (g) | - | - | 14.34 | - | - | - |
| Oleyl amine (g) | - | - | - | 17.85 | - | - |
| P-Tolylamine (g) | 10.75 | - | - | - | 13.24 | - |
| P-chloroaniline (g) | - | 11.79 | - | - | - | 14.26 |
| Mineral oil (g) | 176 | 176 | 176 | 176 | 176 | 176 |
| Amount of thickener (%) | 12 | 12 | 12 | 12 | 12 | 12 |
| Denseness (dmm) | 400 | 408 | 408 | 372 | 369 | 406 |
| Dropping point (℃) | ＞250 | ＞250 | 182 | 151 | ＞250 | ＞250 |
| Separating of oil degree (mass%) | 4.6 | 3.5 | 20.5 | 80.5 | 3.4 | 5.3 |
| Noise test behind the 120s | 461 | ＞10000 | 678 | 424 | 581 | ＞10000 |
Table 7
| Comparative Examples | 13 | 14 | 15 |
| MDI(g) | - | - | 11.88 |
| TODI(g) | 12.21 | - | - |
| TDI(g) | - | 9.74 | - |
| P-chloroaniline (g) | 11.79 | 14.26 | 12.12 |
| Mineral oil (g) | 176 | 176 | 50 |
| Gather (alpha-olefin) (g) | - | - | 126 |
| Amount of thickener (%) | 12 | 12 | 12 |
| Additive A (g) | 1.0 | 1.0 | - |
| B(g) | - | - | 1.0 |
| C(g) | 1.0 | 1.0 | 1.0 |
| D(g) | - | - | 3.0 |
| E(g) | 3.0 | 3.0 | 1.0 |
| F(g) | 1.0 | 1.0 | - |
| G(g) | 2.0 | 2.0 | 2.0 |
| Denseness (dmm) | 410 | 405 | 415 |
| Dropping point (℃) | ＞250 | ＞250 | ＞250 |
| Separating of oil degree (mass%) | 3.6 | 5.8 | 10.1 |
| Noise test behind the 120s | ＞10000 | ＞10000 | ＞10000 |
| ASTMD2246 Shell 4 anti-ball shock test (120rpm, 40kg, 75 ℃, 1h) mm | - | - | - |
| ASTMD3336 bearing test in work-ing life (150 ℃, No.6204, deep-groove bearing) | 680 | 380 | 520 |
| Bowden rub(bing)test (room temperature, sliding velocity 10mm/s, surface pressure 1000Mpa) coefficientoffriction | Stick slip (discrete oil film) | ||
By using the performance of embodiment and Comparative Examples in the following method test chart.
Denseness: JIS K2220
Dropping point: JIS K2220
Separating of oil degree: JIS K2220 method was carried out under the condition of 150 ℃ of temperature 24 hours.
Noise test: utilize NSK noise tester (obtaining) every kind of lubricating grease to be carried out the test of bearing noise by the method for describing the JP532357B1 from NSK LTD.
Bowden friction testing: utilize device measuring frictional coefficient with following technical parameter, the friction of the surface of friction of this appraisal of equipment between to-and-fro movement bed and pin (pin), this pin joint is subjected to and installs in bed the vertical load of plate, and this equipment has the mechanism that applies with the vertical load of bed.
1. form: reciprocating sliding friction tester
2. testpieces: fixed edge: steel ball or rod
Motion limit: about 3 * 40 * 100mm of steel plate specification
3. sliding velocity: 0.05-20mm/s
4. sliding distance: 20-50mm
5. load: 0.1-10Kg
6. temperature: room temperature to 200 ℃
7. driving method: leading screw (Feed screw) slides, helical pitch 2mm
8. CD-ROM drive motor: AC servosystem 400W
These experimental results show:
(1) according to the present invention, by using common LUBRICATING GREASES equipment, and needn't need the thickening material dispersive is installed especially as kneader or autoclave, can produce urea grease composition with outstanding noise reduction and lubricity;
(2) urea grease composition according to the present invention has outstanding consistency index, has a spot of thickening material to become stiff grease; With
(3) urea grease according to the present invention has high dropping point and at high temperature can not show separating of oil.
Claims (10)
1. urea grease composition, it comprises lubricating base oil and with respect to the thickening material of the 2-30wt% of the gross weight of urea grease composition, wherein said thickening material is selected from:
(1) mixture of inclusion compound (a) and compound (b), this mixture contains the compound (a) with respect to the 20-80mol% of the total amount of compound (a) and compound (b);
(2) by mixing cpd (c) and the formed mixture of mixture (1); Or
(3) independent compound (c),
Wherein compound is represented by following general formula separately:
(a)R
1NHCONHR
2NHCONHR
1；
(b) R
3NHCONHR
2NHCONHR
3With
(c)R
1NHCONHR
2NHCONHR
3，
R wherein
2Be the diphenylmethyl alkyl, R
1Be C6-10 saturated alkyl and R
3Be the saturated and/or unsaturated alkyl of C14-40, wherein unsaturated alkyl accounts for R
3At least the 20mol% of alkyl.
2. according to the urea grease composition of claim 1, wherein unsaturated alkyl accounts for R
3At least the 30mol% of alkyl.
3. according to the urea grease composition of claim 1 or 2, wherein oil base accounts for R
3At least the 20mol% of alkyl.
4. according to each urea grease composition of claim 1-3, wherein said composition further comprises the zn cpds as additive.
5. according to the urea grease composition of claim 4, wherein said zn cpds is selected from zinc dithiocarbamate and zinc dithiophosphate.
6. according to each urea grease composition of claim 1-5, wherein said composition further comprises the molybdenum compound as additive.
7. according to the urea grease composition of claim 6, wherein said molybdenum compound is selected from molybdenum dithiocarbamate, the molybdenum mixture of the reaction product in molybdenum dithiophosphate and fatty oil, diethanolamine and molybdenum source.
8. according to each urea grease composition of claim 1-7, wherein thickening material exists with the amount with respect to the 5-20wt% of the gross weight of urea grease composition.
9. the method for lubricating bearings, this method comprise utilizes each urea grease composition filled bearing of claim 1-8.
10. lubricate the method for the slipping plane of the machine in relative movement, this method comprises utilizes each the lubricated described slipping plane of urea grease composition of claim 1-8.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002358152 | 2002-12-10 | ||
| JP358152/2002 | 2002-12-10 | ||
| JP2003284529A JP4405202B2 (en) | 2002-12-10 | 2003-07-31 | Urea grease composition |
| JP284529/2003 | 2003-07-31 | ||
| PCT/EP2003/050980 WO2004053032A1 (en) | 2002-12-10 | 2003-12-10 | Urea grease composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1723268A true CN1723268A (en) | 2006-01-18 |
| CN1723268B CN1723268B (en) | 2010-11-24 |
Family
ID=35912838
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200380105694.5A Expired - Lifetime CN1723268B (en) | 2002-12-10 | 2003-12-10 | Urea grease composition |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2009293042A (en) |
| CN (1) | CN1723268B (en) |
| ZA (1) | ZA200504272B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101679904B (en) * | 2007-05-30 | 2013-03-20 | 协同油脂株式会社 | Grease composition for constant-velocity joint and constant-velocity joint hermetically filled therewith |
| CN101541933B (en) * | 2006-09-21 | 2013-07-24 | 国际壳牌研究有限公司 | Urea grease composition |
| CN103403376A (en) * | 2011-03-01 | 2013-11-20 | Ntn株式会社 | Sliding bearing |
| CN104164286A (en) * | 2014-08-05 | 2014-11-26 | 中国石油化工股份有限公司 | Lubricating grease composition for steering ball joint and preparation method of lubricating grease composition |
| CN105909963A (en) * | 2016-04-15 | 2016-08-31 | 哈尔滨工业大学 | Membrane-oil composite lubrication method |
| CN105909962A (en) * | 2016-04-15 | 2016-08-31 | 哈尔滨工业大学 | Membrane-grease composite lubrication method |
| CN107987924A (en) * | 2017-11-23 | 2018-05-04 | 中国航发北京航空材料研究院 | A kind of poly bis urea-base grease and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2020158907A1 (en) | 2019-01-31 | 2021-12-02 | 出光興産株式会社 | Grease composition |
| WO2020179589A1 (en) | 2019-03-05 | 2020-09-10 | 出光興産株式会社 | Grease composition, and lubrication method and device for sliding mechanism, using said grease composition |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02242896A (en) * | 1982-04-23 | 1990-09-27 | Koyo Seiko Co Ltd | Production of diurea-based grease |
| JPS6031598A (en) * | 1983-07-29 | 1985-02-18 | Daihatsu Motor Co Ltd | Grease composition for ball joint |
| EP0435745B1 (en) * | 1989-12-27 | 1993-11-10 | Nissan Motor Company Limited | Grease for constant velocity joint |
| JP3028299B2 (en) * | 1997-04-25 | 2000-04-04 | 株式会社 キョウエイ | Universal type chuck |
| JP4405202B2 (en) * | 2002-12-10 | 2010-01-27 | 昭和シェル石油株式会社 | Urea grease composition |
| JP4425605B2 (en) * | 2003-10-28 | 2010-03-03 | 昭和シェル石油株式会社 | Urea-based lubricating grease composition and electric power steering device |
| JP4687226B2 (en) * | 2005-04-28 | 2011-05-25 | 株式会社ジェイテクト | Rolling device using lubricating grease composition and electric power steering device using this rolling device |
-
2003
- 2003-12-10 CN CN200380105694.5A patent/CN1723268B/en not_active Expired - Lifetime
-
2005
- 2005-05-25 ZA ZA200504272A patent/ZA200504272B/en unknown
-
2009
- 2009-09-18 JP JP2009216826A patent/JP2009293042A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541933B (en) * | 2006-09-21 | 2013-07-24 | 国际壳牌研究有限公司 | Urea grease composition |
| CN101679904B (en) * | 2007-05-30 | 2013-03-20 | 协同油脂株式会社 | Grease composition for constant-velocity joint and constant-velocity joint hermetically filled therewith |
| US8518864B2 (en) | 2007-05-30 | 2013-08-27 | Kyodo Yushi Co., Ltd. | Grease composition for constant-velocity joints and constant-velocity joint enclosing the same |
| CN103403376A (en) * | 2011-03-01 | 2013-11-20 | Ntn株式会社 | Sliding bearing |
| CN103403376B (en) * | 2011-03-01 | 2016-03-30 | Ntn株式会社 | Sliding bearing |
| CN104164286A (en) * | 2014-08-05 | 2014-11-26 | 中国石油化工股份有限公司 | Lubricating grease composition for steering ball joint and preparation method of lubricating grease composition |
| CN105909963A (en) * | 2016-04-15 | 2016-08-31 | 哈尔滨工业大学 | Membrane-oil composite lubrication method |
| CN105909962A (en) * | 2016-04-15 | 2016-08-31 | 哈尔滨工业大学 | Membrane-grease composite lubrication method |
| CN107987924A (en) * | 2017-11-23 | 2018-05-04 | 中国航发北京航空材料研究院 | A kind of poly bis urea-base grease and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009293042A (en) | 2009-12-17 |
| ZA200504272B (en) | 2006-07-26 |
| CN1723268B (en) | 2010-11-24 |
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