DE1644959B2 - Schmiermittel - Google Patents
SchmiermittelInfo
- Publication number
- DE1644959B2 DE1644959B2 DE1644959A DES0113657A DE1644959B2 DE 1644959 B2 DE1644959 B2 DE 1644959B2 DE 1644959 A DE1644959 A DE 1644959A DE S0113657 A DES0113657 A DE S0113657A DE 1644959 B2 DE1644959 B2 DE 1644959B2
- Authority
- DE
- Germany
- Prior art keywords
- lubricant
- zero
- ester
- triaryl
- acid
- 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
- 239000000314 lubricant Substances 0.000 title claims description 55
- 150000002148 esters Chemical class 0.000 claims description 39
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 9
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 239000002562 thickening agent Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims 1
- -1 cyclic organic phosphorus compounds Chemical class 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 11
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 11
- 102100039496 Choline transporter-like protein 4 Human genes 0.000 description 10
- 101000889282 Homo sapiens Choline transporter-like protein 4 Proteins 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 235000021317 phosphate Nutrition 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000003963 antioxidant agent Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000005069 Extreme pressure additive Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 229910052793 cadmium Inorganic materials 0.000 description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 230000003301 hydrolyzing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 3
- 150000003336 secondary aromatic amines Chemical class 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- 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 2
- BIJMTMUECQSXDH-UHFFFAOYSA-N 10-benzyl-3,7-dioctylphenothiazine Chemical compound C12=CC=C(CCCCCCCC)C=C2SC2=CC(CCCCCCCC)=CC=C2N1CC1=CC=CC=C1 BIJMTMUECQSXDH-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 229940067597 azelate Drugs 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- MOFCYHDQWIZKMY-UHFFFAOYSA-N chloromethylphosphonic acid Chemical compound OP(O)(=O)CCl MOFCYHDQWIZKMY-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
- 229950000688 phenothiazine Drugs 0.000 description 2
- 150000002990 phenothiazines Chemical class 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 150000003852 triazoles Chemical class 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- XMNDMAQKWSQVOV-UHFFFAOYSA-N (2-methylphenyl) diphenyl phosphate Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C=CC=CC=1)OC1=CC=CC=C1 XMNDMAQKWSQVOV-UHFFFAOYSA-N 0.000 description 1
- 150000000178 1,2,4-triazoles Chemical class 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- PTJWCLYPVFJWMP-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical class OCC(CO)(CO)COCC(CO)(CO)COCC(CO)(CO)CO PTJWCLYPVFJWMP-UHFFFAOYSA-N 0.000 description 1
- TZYRSLHNPKPEFV-UHFFFAOYSA-N 2-ethyl-1-butanol Chemical compound CCC(CC)CO TZYRSLHNPKPEFV-UHFFFAOYSA-N 0.000 description 1
- HLOIHWLCERSJNP-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol nonanoic acid Chemical compound CCC(CO)(CO)CO.CCCCCCCCC(O)=O.CCCCCCCCC(O)=O.CCCCCCCCC(O)=O HLOIHWLCERSJNP-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- NUCFNMOPTGEHQA-UHFFFAOYSA-N 3-bromo-2h-pyrazolo[4,3-c]pyridine Chemical compound C1=NC=C2C(Br)=NNC2=C1 NUCFNMOPTGEHQA-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Chemical class 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Natural products OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000005643 Pelargonic acid Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- ISQGOXKDLGVOKQ-UHFFFAOYSA-N bis(3,5,5-trimethylhexyl) hexanedioate Chemical compound CC(C)(C)CC(C)CCOC(=O)CCCCC(=O)OCCC(C)CC(C)(C)C ISQGOXKDLGVOKQ-UHFFFAOYSA-N 0.000 description 1
- WLLCYXDFVBWGBU-UHFFFAOYSA-N bis(8-methylnonyl) nonanedioate Chemical compound CC(C)CCCCCCCOC(=O)CCCCCCCC(=O)OCCCCCCCC(C)C WLLCYXDFVBWGBU-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- VJHINFRRDQUWOJ-UHFFFAOYSA-N dioctyl sebacate Chemical compound CCCCC(CC)COC(=O)CCCCCCCCC(=O)OCC(CC)CCCC VJHINFRRDQUWOJ-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- OVMJVEMNBCGDGM-UHFFFAOYSA-N iron silver Chemical compound [Fe].[Ag] OVMJVEMNBCGDGM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010688 mineral lubricating oil Substances 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 150000004671 saturated fatty acids Chemical class 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- C10M169/04—Mixtures of base-materials 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
-
- 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
-
- 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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/024—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings having at least two phenol groups but no condensed ring
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/22—Acids obtained from polymerised unsaturated acids
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/12—Gas-turbines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/12—Gas-turbines
- C10N2040/13—Aircraft turbines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/015—Dispersions of solid lubricants
- C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
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Description
Schmiermittel auf der Basis eines Esterschmiei mittels,
welche sich beispielsweise sehr gut für die Schmierung von Flugzeuggasturbinen eignen, sollen
eine gute Oxydationsstabilität bei hohen Temperaturen und gute Höchstdruckeigenschaften aufweisen. Solche
Schmiermittel enthalten daher üblicherweise Antioxydationsmittel, wie bestimmte substituierte Phenothiazi- 4-,
ne und bestimmte sekundäre aromatische Amine sowie bestimmte Höchstdruckzusatzstoffe, wie z. B. Triarylestervon
Phosphorthionsäure.
Obwohl diese Triarylphosphorthionate den Schmiermitteln sehr günstige Hochdruckeigenschaften verleihen,
bewirken sie doch bei bestimmten Metallen, insbesondere bei Magnesium, Cadmium und bei S. 82
Stahl eine Korrosion. Bei dieser Stahlsorte handelt es sich um einen Qualitätsstahl für Flugzeuggetriebe,
welcher den Bestimmungen der British Standard ■-,■■>
Specification EN39B genügt. Andererseits sind Triarylphosphate wohlbekannte Hochdruckzusatzstoffe, doch
zeigen Schmiermittel, welche diese Zusatzstoffe enthalten, bei hohen Temperaturen keine ausreichende
Oxydationsslabilität. bo
Aus der GB-PS 8 23 086 sind weiterhin cyclische organische Phosphorverbindungen bekanntgeworden,
die auch Schwefel im Molekül enthalten können und welche das Korrosionsverhalten von Mineralschmierölen
und synthetischen Schmierölen verbessern sollen. bs Infolge der komplexen Struktur sind diese Zusatzstoffe
aber nicht einfach zugänglich.
Überraschenderweise wurde nun gefunden, daß Triarylphosphorthionate und Triarylphosphate in
Schmiermitteln auf der Basis eines Esterschmiermittels in bezug auf Antikorrosionseigenschaften und Antioxydationseigenschaften
bei hohen Temperaturen in synergistischer Weise zusammenwirken, insbesondere wenn diese beiden Zusatzstoffe in bestimmten Mengenverhältnissen
vorliegen.
Die erfindungsgemäßen Schmiermittel bestehen daher aus einem größeren Anteil eines Esterschmiermittels
und kleineren Anteilen jeweils eines Triarylphosphorthionates und eines Triarylphosphates sowie
gegebenenfalls weiteren bekannten Additiven.
Für diesen Zweck geeignete Triarylphosphorthionate enthalten in jeder Arylgruppe 6 bis 10 Kohlenstoffatome.
Beispiele hierfür sind Triphenyl-, Tritolyl-, Tribenzyl-, Tixylyl- und Diphenyltolylphosphorthionat. Besonders
bevorzugt ist im Rahmen der Erfindung Triphenylphosphorthionat, nachstehend als TPPT abgekürzt.
Als Triarylphosphate eignen sich im Rahmen der Erfindung solche Verbindungen, welche in jeder
Arylgruppe gleichfalls 6 bis 10 Kohlenstoffatome enthalten, beispielsweise Triphenyl-, Tritolyl-, Tribenzyl-,
Trixylyl und Diphenyltolylphosphat. Bevorzugt wird jedoch Triphenylphosphat angewendet, welches
nachstehend mit TPP abgekürzt wird.
Das Verhältnis von Triphenylphosphat zu Triphenylphosphorthionat liegt zweckmäßig in den erfindungsgemäßen
Esterschmiermitteln bei etwa 0,25:1, doch beträgt dieses Verhältnis vorzugsweise nicht weniger
alsO,5:l.
Als Basisöl können in den erfindungsgemäßen Schmiermitteln einfache Ester, Komplexester, Polyester
oder Mischungen solcher Ester verwendet werden, welche außerdem noch Verdickungsmittel enthalten
können, je nach den viskosimetrischen Eigenschaften,
welche für ein spezielles Schmiermittel und für diejenigen Temperaturbedingungen erwünscht sind,
unter denen das Schmiermittel verwendet wird. Unter einem einfachen Ester wird im Rahmen der Erfindung
ein Ester verstanden, der von einer aliphatischen Dicarbonsäure und einem aliphatischen einwertigen
Alkohol abgeleitet ist, wobei es sich vorzugsweise um Ester einer aliphatischen Dicarbonsäure mit 6 bis 10
Kohlenstoffatomen im Molekül und eines verzweigten einwertigen Alkohols mit 6 bis 12 Kohlenstoffatomen
im Molekül handelt. Insbesondere werden hierfür Alkohole verwendet, welche am beta-Kohlenstoffatom
keinen Wasserstoff enthalten.
Beispiele für einfache Ester, welche als Basisöl bei den erfindungsgemäßen Esterschmiermitteln eingesetzt
werden können, sind
Diisononylsebacat, Di(2-äthylhexyl)-sebacat,
Diisooctylazelat, Diisodecylazelat,
Di(3,5,5-trimethylhexyl)-adipat,
2-Athylhexy 1-3,5,5-trimethylhexylserbacat
und einfache, sterisch gehinderte Ester, wie 2,2,4-Trimethylpentylazelat.
Unter einem komplexen Ester wird ein Ester verstanden, der aus verschiedenen Kombinationen
einer aliphatischen Carbonsäure, eines Glykols oder Polyglykols, eines aliphatischen einwertigen
Alkohols und/oder einer aliphatischen Monocarbonsäure erhalten wird. Derartige Ester weisen z. B. die
folgenden Strukturen auf, AD(GD)M, A(DG)nM und MG(DG)nM, in welchen A, D, G und M die bei der
Veresterung erhaltenen Restgruppen eines aliphatischen einwertigen Alkohols, einer aliphatischen Dicarbonsäure,
eines Giykois oder Polyglykols sowie einer
aliphatischen Monocarbonsäure bedeuten und η eine
ganze Zahl von 1 bis 6 ist. Beispiele für typische Ausgangsmaterialien zur Herstellung solcher komplexen
Ester sind 2-Äthylbutylalkohol, 2-ÄthylhexylaIkohoi,
Capronsäuren, Pelargonsäure, Caprinsäure, tertiäre Säuren, welche kein a-Wasserstoffatom enthalten,
Neopentylglykol, Äthylenglykol, Propylenglykol, PoIyglykole,
wie Polyäthylenglykole, Sebacinsäure, Adipinsäure, Azelainsäure und Pimelinsäure.
Unter Polyestern werden Ester verstanden, die sich von aliphatischen Alkoholen mit mindestens 3 Hydroxylgruppen
im Molekül ableiten, beispielsweise Ester von Trimethylolpropan, wie der Trimethylolpropantripelargonsäureesier.
Ferner kommen hierfür Tetraester in Betracht, beispielsweise Tetraester des Pentaerythrit oder eines
Dimeren oder Trimeren dieses Alkohols und ferner Ester des Dipentaerythrits. Derartige Ester sind im
Handel erhältlich. Es handelt sich dabei um Fettsäureester. Vorzugsweise enthält jeder Fettsäurerest des
Esters 4 bis 18 Kohlenstoffatome und insbesondere 6 bis 14 Kohlenstoffatom^
Als Verdickungsmittel können in den erfindungsgemäßen Esterschmiermitteln Polymere von Estern der
Acrylsäure oder einer alkylsubstituierten Acrylsäure verwendet werden, beispielsweise von Laurylmethacrylat.
Ferner eignen sich für diesen Zweck Äther eines Polyoxyalkylenglykols der allgemeinen Formel
R5O(R7O)nR6,
in welcher R5 eine Alkylgruppe, R6 ein Wasserstoffatom
oder eine Alkylgruppe und R7 eine Alkylengruppe mit 2 bis 7 Kohlenstoffatomen bedeutet, während η eine
ganze Zahl größer als 1 ist. Geeignete Verbindungen dieser Art sind im Handel erhältlich.
Als Verdickungsmittel eignen sich auch Mischpolymerisate aus Propylenoxyd und Äthylenoxyd, welche
gleichfalls im Handel erhältlich sind. Je nach den erwünschten viskosimetrischen Eigenschaften können
diese Verdickungsmittel in Konzentrationen bis zu 50 Gew.-%, berechnet auf das fertige Schmiermittel, in den
erfindungsgemäßen Esterschmiermitteln vorliegen.
Die erfindungsgemäßen Esterschiniermittel können weiterhin zusätzliche Additive enthalten, beispielsweise
Hochdruckzusatzstoffe, Antioxydationsmittel, Metalldesaktivatoren.
Antikorrosionsmittel, Antischaummittel, Farbstoffe und andere für Esterschmiermittel
bekannte Zusatzstoffe.
Geeignete Hochdruckzusatzstoffe sind chlorierte Dioder Polyphenyle und Salze von tert.-Alkyl, primären
Aminen mit Monochlormethylphosphonsäure.
Geeignete Antioxydationsmittel sind substituierte Phenothiazine, sekundäre aromatische Amine, alkylierte
Phenole und Bisphenole.
Ein im Rahmen der Erfindung besonders günstig wirkendes Antioxydationsmittel ist ein substituiertes
Phenothiazin der nachstehenden allgemeinen Formel
Substituenten R,, R2, Ri und R4 ein Alkyl- oder
Alkoxyrest ist, während die anderen Substituenten Wasserstoffatome bedeuten.
Weiterhin eignet sich als Antioxydationsmittel sehr -, gut ein sekundäres aromatisches Amin, bei dem zwei
aromatische Gruppen direkt an das Stickstoffatom gebunden sind. Beispiele für solche Zusatzstoffe sind
N-Benzyl-3,7-dioctylphenothiazin und Phenyl-a-naphthylamin.
Als MetalldesaktivatoVen eignen sich Triazole, wie 1,2,3- und 1,2,4-Triazole, insbesondere wenn diese
Amino- und Kohlenwasserstoffsubstituenten sowie Acyl- oder Aroylsubstituenten enthalten.
Geeignete Antikorrosionsmittel sind Carbonsäuren, ij wie Sebacinsäure, Azelainsäure und Adipinsäure und
ferner Metallsalze von Erdölsuifonsäuren.
Ais Antischaummittel können Polydimethylsiloxane mit Viskositäten von 100-lOOcSt bei 25°C eingesetzt
werden.
Die Erfindung wird durch die nachstehenden Beispiele näher erläutert:
Zu einem Basisschmiermittel A werden unterschiedliche Mengen Triphenylphosphat und Triphenylphosphorthionat
(TPP bzw. TPPT) hinzugesetzt. Alle Mengenangaben sind in Gew.-% angegeben.
| Schmiermittel | A |
| 64,5% | »Hercolube A«*) |
| 31,9% | »Hercolube F«**) |
| 1,7% | N-Benzyl-3,7-dioctylphenothiazin |
| 1,5% | Phenyl-«-naphthylamin |
| 0,02% | Azelainsäure |
| 0,0005% | Silikon-Flüssigkeit MS 200/12 500***) |
| 0,17% | JMT/MCMPA - primäres Ci8-C22 |
| Aminsalz | |
| von Monochlormethylphosphonsäure | |
| 0.2% | Triazol |
in welcher R einen Alkyl-, Aryl-, Alkaryl-, Aralkyl- oder Cvanoalkvlrest bedeutet und mindestens einer der
Schmiermittel B
A + 0,5% TPPT (zum Vergleich)
Schmiermittel C
A + 0,5% TPP (zum Vergleich)
Schmiermittel D
A +1 % TPP (zum Vergleich)
Schmiermittel E
A + 1 % TPPT (zum Vergleich)
Schmiermittel F
A + 0,5% TPP + 1 % TPPT
Schmiermittel G
A +1% TPP+1% TPPT
Schmiermittel H
A + 0,5% TPP + 0,5% TPPT
>■> Schmiermittel J
A + 0,3% TPP + 1 % TPPT
*) Pentaerythritester von gesättigten Fettsäuren mit einer
mittleren Kettenlänge von 8 Kohlenstoffatomen in Mischung mit einem kleineren Anteil von Dipentaerythritestern.
W) *»j Dipentaerythritester gesättigter Fesltsäuren in Mischung mit kleineren Mengen an Mono- undTripentaerythritestern.
W) *»j Dipentaerythritester gesättigter Fesltsäuren in Mischung mit kleineren Mengen an Mono- undTripentaerythritestern.
***) Ein Dimethylsilikonpolymer mit einer Viskosität von ca. 12 50OcSt bei 25° C.
Mit diesen Schmiermitteln werden verschiedene Teste durchgeführt, wobei die erhaltenen Ergebnisse nachstehend
in den Tabellen i bis V zusammengestellt sind.
»Bristol Siddeley«-Korrosionstest (Tabelle I)
Bei diesem Test werden Proben bestimmter Metalle 24 Std. lang bei einer Temperatur von 2850C der
Einwirkung der zu prüfenden Esterschmiermittel
Tabelle I
Korrosionstest
Korrosionstest
ausgesetzt. Es werden dabei die Gewichtsveränderungen der Metallproben gemessen.
Schmier- Gewichtsveränderung in mg/cm2
mlUel Messing Monel- Alumimetall
nium
Bronze
S.82-Stahl
Gußeisen Silber
SIlOB-Stahl
Cadmium
Magnesium
Nickel
| B | -2,0 | null | null | -0,14 | -19 | -2,7 | null | -0,24 | -11 | >-130 | null |
| C | -0,56 | null | +0,04 | null | -0,19 | -0,64 | -0,06 | +0,07 | -2,7 | -28 | +0,04 |
| D | -0,74 | null | null | null | -0,17 | -0,46 | +0,04 | null | -0,69 | -29,8 | -0,06 |
| E | -0,70 | +0,10 | -0,03 | -0,2 | -21,0 | -4,03 | +0,01 | -1,59 | -49,0 | >-130 | +0,03 |
| F | -0,13 | null | null | -0,07 | -0,37 | null | null | null | -3,9 | -12 | +0,08 |
| G | +0,01 | null | null | null | null | null | null | null | -2,90 | -11,1 | +0,07 |
| H | null | null | null | null | null | null | null | null | -3,20 | -10,4 | null |
| J | -0,51 | null | null | -0,13 | -5,1 | -0,81 | null | -0,04 | -0,51 | -100 | +0,10 |
Bei dem Stahltyp SIlOB handelt es sich um einen korrosionsbeständigen rostfreien Stahl, der sich zum
Schweißen eignet und den Vorschriften der British Standard Specification En58C entspricht.
»Rolls-Royce« — Oxydations-Blas-Test
(Tabelle II)
Bei diesem Test wird eine Rolls-Royce-Vorrichtung J3 24 Std. lang bei einer Temperatur von 250°C durch je
verwendet und man bläst dabei mit Wasserdampf 50 ml des zu prüfenden Esterschmiermittels,
gesättigte Luft mit einer festgesetzten Geschwindigkeit
Schmiermittel Viskositätserhöhung bei 37,80C in %
G
H
H
663;
320;
155;
343;
Aus Tabelle I ist ersichtlich, daß durch die kombinierte Anwendung von Triphenylphcsphat und
Triphenylphosphorthionat die Korrosion wesentlich erniedrigt wird, und zwar im Vergleich zu Triphenyl
phosphorthionat allein, insbesondere bei Magnesium, Cadmium und dem S. 82-Stahl. Obwohl das Ergebnis für
Magnesium bei Einsatz des Schmiermittels J enttäuschend ist, lassen sich doch verbesserte Ergebnisse
erzielen, wenn man das Verhältnis von TPP zu TPPT erhöht.
Aus Tabelle II ist klar ersichtlich, daß ein günstiger Antioxydationseffekt bei hohen Temperaturen durch
das synergetische Zusammenwirken der beiden Zusatzstoffe erzielt wird.
»Rolls-Roycew-Korrosionstest, Methode 1002,
Arbeitsweise A, Schema Nr. 1 (200° C, 192 Std.)
Nach Vorbehandlung gemäß der Vorschrift Rolls-Royce 1004, Iss. 1, Sup. 2 während 5 Std. bei 325C C.
Bei diesem Korrosionstest wird die Gewichtsveränderung ausgewählter Metallproben festgestellt, welche
192 Std. bei einer Temperatur von 2000C der Einwirkung des zu prüfenden Esterschmiermittels
ausgesetzt werden. Die Vorbehandlung besteht darin, daß etwa 100 ml des zu prüfenden Schmiermittels in
einem Behälter aus rostfreiem Stahl 5 Std. lang auf 325°C erhitzt werden, wobei der Behälter eine dicht
schließende Verschlußkappe aufweist, welche mit einem engen Stahlkondensator verbunden ist.
Die hierbei erzielten Ergebnisse sind nachstehend in Tabelle 111 zusammengefaßt.
| III | 7 | Ti /C u | Cu/Ni/Si | I-iuUstuhl | 16 44 | 959 | Ph- Messing |
8 | Schncll- arhcitsslahl |
Cu | |
| Tabelle | null | -1,2 | 1-8,9 | -2,1 | -0,03 | -1,5 | |||||
| Schmier | Gewichtsveränclcrung in mg/cm | null | -1,8 | -36 | -6,4 | -6,3 | -2,0 | ||||
| mittel | ΛΙ | null | -0,94 | -6,1 | l'h-liron/c | Stahl mit hohem Ge halt im C und Cr |
-1,8 | Ni/Cr-ein- sat/gehärteter Stahl |
-0,23 | -1,5 | |
| D | null | -1,2 | -3,7 | -0,27 | |||||||
| E | null | -4,3 | -16 | -21 | |||||||
| G | null | -0,86 | -2,9 | -2,6 | |||||||
Aus dieser Tabelle ist ersichtlich, daß die durch Triphenylphosphorthionat hervorgerufene Korrosion
bei hohen Temperaturen durch den Zusatz von Triphenylphosphat wesentlich herabgesetzt wird.
Eine Gefahr bei der Anwendung von Triphenylphosphat in einem Ester besteht darin, daß das Phosphat zu
einem sauren Phosphat hydrolysiert werden kann, welches seinerseits eine partielle hydrolytische Zersetzung
des Esters zu dem Halbester katalysiert. Dieser Halbester wirkt korrosiv, während der gleichzeitig
gebildete Alkohol den Flammpunkt herabsetzt. Dieses Verhalten wurde mittels zweier wohlbekannter Teste
geprüft, nämlich mittels des Rolls-Royce-Hydrolysestabilitätstestes und mittels des S.O.D.-Bleikorrosions-Lagerungs-Stabilitätstestes.
Bei dem Rolls-Royce-Test werden 250 ml des zu
prüfenden Schmiermittels zusammen mit 25 ml destilliertem Wasser so lange auf 900C erhitzt, bis der
Säurewert um 1,5 mg KOH/g angestiegen ist. Bei dem S.O.D.-Test wird ein Prüfstück aus Blei zusammen mit
einem als Katalysator wirkenden Kupferstück auf einem Rührer angeordnet, und dieser Rührer wird in die zu
prüfende Schmiermittelmischung eingetaucht und mit einer vorbestimmten Geschwindigkeit gedreht. Gleichzeitig
wird Luft mit einer Geschwindigkeit, die festgesetzt ist, eine Stunde lang bei einer Temperatur
von 166,8°C durch das Schmiermittel geblasen.
Diese Maßnahmen werden sowohl bei dem frischen Schmiermittel als auch nach einer 7tätigen Lagerung bei
1100C durchgeführt. Die dabei erhaltenen Ergebnisse
sind in Tabelle IV zusammengestellt.
Schmiermittel
D
D
»Rolls-Roycew-Hydrolysestabilitäts-Test
(Anzahl Std. bis zum Ansteigen des Siiurcwertes um 1,5 mg KOH/g) 134 124 126
(Anzahl Std. bis zum Ansteigen des Siiurcwertes um 1,5 mg KOH/g) 134 124 126
Gewichtsverlust der Bleiprobe nach 1 Std. bei 162,8 C in mg/6,45 cm2
Vor der Lagerung -0,19 -0,67 null
Nach 7 Tage Lagerung bei 110 C -1,86 -0,56 -0,49
Diese Ergebnisse bestätigen, daß das Triphenylphosphat bei den erfindungsgemäßen Schmiermitteln keinen
ungünstigen hydrolytischen Effekt auf das Esterschmiermittel ausübt.
Schließlich ist noch die Einwirkung von Triphenylphosphat auf übliche Ester, wie Di-isooctylazelat,
bestimmt worden.
Die in Tabelle V zusammengefaßten Ergebnisse bestätigen, daß ein Schmiermittel, welches nur 1%
Triphenylphosphat aber kein Triphenylphosphorthionat enthält, zu einer höheren Bleikorrosion Anlaß gibt, d. h.,
daß eine stärkere Hydrolyse stattfindet als wenn der gleiche Ester sowohl 1% des Phosphates als auch 1%
des PhosDhorlhionates enthält.
| Schmiermittel | Hster | |
| Ester | + 1 % TPP | |
| + 1 % TPP | + I %TPPT | |
| Gewichtsverlust der Blei | ||
| probe nach 7 Tage Lage | ||
| rung bei 110 C und | ||
| 1 Std. Behandlung bei | 0,19 | |
| 162,8 C | 5,45 | |
Claims (7)
1. Schmiermittel, bestehend aus einem größeren Anteil eines Esterschmiermittels und kleineren >
Anteilen jeweils eines Triary.lphosphorthionates und eines Triarylphosphates sowie gegebenenfalls weiteren
bekannten Additiven.
2. Schmiermittel nach Anspruch 1, dadurch
gekennzeichnet, daß es ein Triarylphosphorthionat mit 6 bis 10 Kohlenstoffatomen in jeder Arylgruppe,
insbesondere Triphenylphosphorthionat enthält.
3. Schmiermittel nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß es ein Triarylphosphat
mit 6 bis 10 Kohlenstoffatomen in jeder Arylgruppe, ι >
insbesondere Triphenylphosphat, enthält.
4. Schmiermittel nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß es das Triarylphosphat
und das Triarylphosphorlhionat in einem Verhältnis von 0,25 : 1 enthält. jo
5. Schmiermittel nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß es das Triarylphosphat
und das Triarylphosphorthionat in einem Verhältnis von 0,5 :1 enthält.
6. Schmiermittel nach den Ansprüchen 1 bis 5, >>
dadurch gekennzeichnet, daß es als Schmierölbasis einen einfachen Ester, einen Komplexester und/oder
einen Polyester enthält.
7. Schmiermittel nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß es außerdem ein jo
Verdickungsmittel enthält, vorzugsweise in Konzentrationen bis zu 50 Gewichtsprozent, bezogen auf
das fertige Schmiermittel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1540/67A GB1133692A (en) | 1967-01-11 | 1967-01-11 | Improvements in or relating to ester lubricants |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1644959A1 DE1644959A1 (de) | 1971-08-05 |
| DE1644959B2 true DE1644959B2 (de) | 1978-04-20 |
| DE1644959C3 DE1644959C3 (de) | 1979-01-04 |
Family
ID=9723758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1644959A Expired DE1644959C3 (de) | 1967-01-11 | 1968-01-09 | Schmiermittel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3483122A (de) |
| DE (1) | DE1644959C3 (de) |
| FR (1) | FR1551403A (de) |
| GB (1) | GB1133692A (de) |
| NL (1) | NL160603C (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755588A (nl) * | 1969-09-08 | 1971-03-02 | Shell Int Research | Werkwijze ter bereiding van smeermiddelcomposities |
| US4263062A (en) * | 1979-08-02 | 1981-04-21 | Stauffer Chemical Company | Rust-preventive compositions |
| JP3001171B2 (ja) * | 1993-05-25 | 2000-01-24 | 昭和シェル石油株式会社 | ウレアグリース組成物 |
| US6048825A (en) * | 1994-04-26 | 2000-04-11 | Castrol Limited | Lubricant composition |
| US5780400A (en) * | 1996-10-07 | 1998-07-14 | Dover Chemical Corp. | Chlorine-free extreme pressure fluid additive |
| KR100288029B1 (ko) * | 1998-01-21 | 2001-04-16 | 다니구찌 이찌로오, 기타오카 다카시 | HFC-32, HFC-125 또는 HFC-134a를 사용하는 냉동기용 윤활유 조성물 |
| DE19983009B4 (de) * | 1998-02-28 | 2011-03-03 | Great Lakes Chemical Corp., West Lafayette | Metallbearbeitungs-Schmiermittelzusammensetzung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA663382A (en) * | 1963-05-21 | H. Matuszak Alfred | Aviation gas turbine lubricants | |
| US2080299A (en) * | 1935-04-12 | 1937-05-11 | Du Pont | Inhibiting corrosion of metals |
| GB1043280A (en) * | 1963-10-25 | 1966-09-21 | Shell Int Research | Improvements in or relating to lubricating oil compositions |
-
1967
- 1967-01-11 GB GB1540/67A patent/GB1133692A/en not_active Expired
-
1968
- 1968-01-09 DE DE1644959A patent/DE1644959C3/de not_active Expired
- 1968-01-09 FR FR1551403D patent/FR1551403A/fr not_active Expired
- 1968-01-10 US US696710A patent/US3483122A/en not_active Expired - Lifetime
- 1968-01-10 NL NL6800334.A patent/NL160603C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| FR1551403A (de) | 1968-12-27 |
| NL6800334A (de) | 1968-07-12 |
| NL160603C (nl) | 1979-11-15 |
| DE1644959C3 (de) | 1979-01-04 |
| NL160603B (nl) | 1979-06-15 |
| US3483122A (en) | 1969-12-09 |
| DE1644959A1 (de) | 1971-08-05 |
| GB1133692A (en) | 1968-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |