JP2017226805A - 自動車用エンジン冷却液組成物、自動車用エンジン濃縮冷却液組成物及び内燃機関の運転方法 - Google Patents
自動車用エンジン冷却液組成物、自動車用エンジン濃縮冷却液組成物及び内燃機関の運転方法 Download PDFInfo
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- JP2017226805A JP2017226805A JP2016125972A JP2016125972A JP2017226805A JP 2017226805 A JP2017226805 A JP 2017226805A JP 2016125972 A JP2016125972 A JP 2016125972A JP 2016125972 A JP2016125972 A JP 2016125972A JP 2017226805 A JP2017226805 A JP 2017226805A
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- 238000002485 combustion reaction Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title description 13
- -1 glycol monoalkyl ether Chemical class 0.000 claims abstract description 82
- 229920001971 elastomer Polymers 0.000 claims abstract description 80
- 239000005060 rubber Substances 0.000 claims abstract description 80
- 230000008961 swelling Effects 0.000 claims abstract description 55
- 239000004094 surface-active agent Substances 0.000 claims abstract description 46
- 239000003112 inhibitor Substances 0.000 claims abstract description 45
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 150000001875 compounds Chemical class 0.000 claims abstract description 32
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 23
- 230000003449 preventive effect Effects 0.000 claims description 16
- 150000001298 alcohols Chemical class 0.000 claims description 13
- 239000012809 cooling fluid Substances 0.000 claims description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 8
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
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- 238000011017 operating method Methods 0.000 claims 1
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- MOEFFSWKSMRFRQ-UHFFFAOYSA-N 2-ethoxyphenol Chemical compound CCOC1=CC=CC=C1O MOEFFSWKSMRFRQ-UHFFFAOYSA-N 0.000 abstract 1
- 125000004494 ethyl ester group Chemical group 0.000 abstract 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 abstract 1
- 239000000110 cooling liquid Substances 0.000 description 46
- 229910052783 alkali metal Inorganic materials 0.000 description 29
- 239000002585 base Substances 0.000 description 28
- 150000001339 alkali metal compounds Chemical class 0.000 description 22
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- 230000000694 effects Effects 0.000 description 20
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- 230000001965 increasing effect Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 125000004079 stearyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 125000003827 glycol group Chemical group 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 125000000913 palmityl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 235000011118 potassium hydroxide Nutrition 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 150000001346 alkyl aryl ethers Chemical class 0.000 description 3
- 150000005215 alkyl ethers Chemical class 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 125000001204 arachidyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 3
- 150000002334 glycols Chemical class 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
- 150000003852 triazoles Chemical class 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
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- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
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- 125000002463 lignoceryl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
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- RNVFYQUEEMZKLR-UHFFFAOYSA-N methyl 3,5-dihydroxybenzoate Chemical compound COC(=O)C1=CC(O)=CC(O)=C1 RNVFYQUEEMZKLR-UHFFFAOYSA-N 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
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- 239000002736 nonionic surfactant Substances 0.000 description 2
- 125000001117 oleyl 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])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000010525 oxidative degradation reaction Methods 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
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- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
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- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
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- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- KDVYCTOWXSLNNI-UHFFFAOYSA-N 4-t-Butylbenzoic acid Chemical compound CC(C)(C)C1=CC=C(C(O)=O)C=C1 KDVYCTOWXSLNNI-UHFFFAOYSA-N 0.000 description 1
- UJRRFYOOIAUSJA-UHFFFAOYSA-N 5-methylheptane-1,2,4-triol Chemical compound CCC(C)C(O)CC(O)CO UJRRFYOOIAUSJA-UHFFFAOYSA-N 0.000 description 1
- BSYNRYMUTXBXSQ-FOQJRBATSA-N 59096-14-9 Chemical compound CC(=O)OC1=CC=CC=C1[14C](O)=O BSYNRYMUTXBXSQ-FOQJRBATSA-N 0.000 description 1
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- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
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- ODBLHEXUDAPZAU-ZAFYKAAXSA-N D-threo-isocitric acid Chemical compound OC(=O)[C@H](O)[C@@H](C(O)=O)CC(O)=O ODBLHEXUDAPZAU-ZAFYKAAXSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- ODBLHEXUDAPZAU-FONMRSAGSA-N Isocitric acid Natural products OC(=O)[C@@H](O)[C@H](C(O)=O)CC(O)=O ODBLHEXUDAPZAU-FONMRSAGSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000001983 dialkylethers Chemical class 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- AHMROPIAMLLAPW-UHFFFAOYSA-L dipotassium;decanedioate Chemical compound [K+].[K+].[O-]C(=O)CCCCCCCCC([O-])=O AHMROPIAMLLAPW-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- TUEYHEWXYWCDHA-UHFFFAOYSA-N ethyl 5-methylthiadiazole-4-carboxylate Chemical compound CCOC(=O)C=1N=NSC=1C TUEYHEWXYWCDHA-UHFFFAOYSA-N 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 125000001421 myristyl 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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003254 radicals Chemical group 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 230000019635 sulfation Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- ODBLHEXUDAPZAU-UHFFFAOYSA-N threo-D-isocitric acid Natural products OC(=O)C(O)C(C(O)=O)CC(O)=O ODBLHEXUDAPZAU-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
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Abstract
【解決手段】(A)粘度特性改良剤としての界面活性剤、(B)ゴム膨潤抑制剤、及び(C)基剤を含有する自動車用エンジン冷却液組成物であって、ゴム膨潤抑制剤(B)がp−ヒドロキシ、メトキシ或いはエトキシフェノール、又は3,5−ジヒドロキシ安息香酸、そのメチル或いはエチルエステルから選択される少なくとも1種であり、基剤が、一価アルコール、二価アルコール、三価アルコール又はグリコールモノアルキルエーテルから選ばれる少なくとも1種のアルコール類及び/又は水からなり、動粘度が、25℃で8.5mm2/秒以上であり、ゴム膨潤抑制剤(B)の含有量が、冷却液組成物100質量部に対して、0.03〜0.9質量部である、冷却液組成物。
【選択図】図1
Description
[1](A)粘度特性改良剤としての界面活性剤;
(B)ゴム膨潤抑制剤;及び
(C)基剤
を含有する自動車用エンジン冷却液組成物であって、
ゴム膨潤抑制剤(B)が下記式(1):
で表される化合物、及び下記式(2):
で表される化合物から選択される少なくとも1種であり、
基剤が、一価アルコール、二価アルコール、三価アルコール及びグリコールモノアルキルエーテルからなる群より選ばれる少なくとも1種のアルコール類及び/又は水からなり、
動粘度が、25℃で8.5mm2/秒以上であり、
ゴム膨潤抑制剤(B)の含有量が、冷却液組成物100質量部に対して、0.03質量部以上0.9質量部以下である、上記冷却液組成物。
[2]動粘度が、100℃で2.0mm2/秒以下である、上記[1]に記載の冷却液組成物。
[3]ゴム膨潤抑制剤(B)の含有量が、冷却液組成物100質量部に対して、0.05質量部以上0.5質量部以下である、上記[1]又は[2]に記載の冷却液組成物。
[4]成分(A)の含有量が、冷却液組成物100質量部に対して、0.005質量部以上3質量部以下である、上記[1]〜[3]のいずれかに記載の冷却液組成物。
[5]更に防錆剤を含有する、上記[1]〜[4]のいずれかに記載の冷却液組成物。
[6]基剤(C)が有機溶剤を含む、上記[1]〜[5]のいずれかに記載の冷却液組成物。
[7]上記[1]〜[6]のいずれかに記載の冷却液組成物を得るための自動車用エンジン濃縮冷却液組成物であって、基剤を用いて2〜10質量倍に希釈されて用いられる、上記濃縮冷却液組成物。
[8]濃縮冷却液組成物100質量部に対して、下記成分:
(A)粘度特性改良剤としての界面活性剤;0.1〜99質量部;
(B)ゴム膨潤抑制剤:0.1〜5質量部;及び
(C’)溶剤:0〜99.8質量部
を含有する、上記[7]に記載の濃縮冷却液組成物。
[9]上記[1]〜[6]のいずれかに記載の冷却液組成物を冷却液として用いる、内燃機関の運転方法。
Rbは、エチレン基又はプロピレン基であり、
pは、RbOの平均付加モル数を示し、0.5以上かつ20以下の数である]
で表される化合物であることが好ましい。
Rcは、直鎖状又は分岐鎖状の炭素原子数16以上かつ24以下のアルキル基又はアルケニル基であり、
Rdは、エチレン基又はプロピレン基であり、
qは、RdOの平均付加モル数を示し、0.5以上かつ10以下の数であり、
Mは、陽イオン又は水素原子である。]
で表される化合物であることが好ましい。
で表される化合物、及び下記式(2):
で表される化合物から選択される少なくとも1種である。本発明の冷却液組成物は、粘度特性改良剤として界面活性剤(A)を含有するが、当該ゴム膨潤抑制剤を含むことにより、ゴムの膨潤及び冷却液の変色を抑制することができる。
(A)粘度特性改良剤としての界面活性剤;0.1〜99質量部;
(B)ゴム膨潤抑制剤:0.1〜5質量部;及び
(C’)溶剤:0〜99.8質量部
を含有するものが挙げられる。
下記表1に示す処方の材料を添加し、撹拌・混合してLLCを作製した。表1中、防錆剤として小倉合成工業株式会社製のセバシン酸、pH調整剤として株式会社大阪ソーダ製の苛性カリを使用した。またゴム膨潤抑制剤として用いた化合物の構造を以下に示す。
下記表2に記載のゴム膨潤抑制剤、界面活性剤(A)(粘度特性改良剤)としてポリオキシエチレンアルキルエーテル硫酸エステル塩(式(4)のRcが直鎖状の炭素数22のアルキル基、Rdがエチレン基、qが4、Mがナトリウム)及び水を、表2−1及び表2−2に記載の配合量(質量部)でLLCに合計が100質量部となるように混合し、実施例1〜6の冷却液組成物及び比較例1〜11の冷却液組成物を作製した。ここで、ポリオキシエチレンアルキルエーテル硫酸エステル塩は以下のように合成した。
外部ジャケットを有す薄膜式硫酸化反応器を使用し、炭素数22を主とする高級アルコール(花王株式会社製、商品名;カルコール220−80)のアルコールのエトキシレート(平均エチレンオキサイド付加モル数4.0)を5.0L/hの供給速度で薄膜状に流下するとともに、乾燥空気で希釈した三酸化硫黄ガス(三酸化硫黄ガス濃度:1.1容量%)を、反応器冷却温度40℃、供給速度130L/min(三酸化硫黄/エトキシレートのモル比:1.00)の条件で加えて硫酸化反応を行った。
得られた冷却液組成物について下記評価試験を行った。
<1.粘度特性への影響試験>
JIS K2283に基づき、25℃の動粘度を測定した。冷却液組成物の25℃における動粘度が、8.5mm2/s以上である場合を良好であると評価した。
<2.ゴム体積変化率の測定>
冷却液の温度を120℃に設定し、H−NBRゴムの試験片を0.1MPaの酸素加圧下で1000時間浸漬し、浸漬後の試験片の体積変化率を測定した。体積変化率30%以下を良好とした。
<3.変色試験>
ネジ口瓶に冷却液100g当たりにEPDMゴム片10gを入れ、160℃で24時間加熱した。その後の液の色合いを目視にて観察した。
Claims (9)
- (A)粘度特性改良剤としての界面活性剤;
(B)ゴム膨潤抑制剤;及び
(C)基剤
を含有する自動車用エンジン冷却液組成物であって、
ゴム膨潤抑制剤(B)が下記式(1):
で表される化合物、及び下記式(2):
で表される化合物から選択される少なくとも1種であり、
基剤が、一価アルコール、二価アルコール、三価アルコール及びグリコールモノアルキルエーテルからなる群より選ばれる少なくとも1種のアルコール類及び/又は水からなり、
動粘度が、25℃で8.5mm2/秒以上であり、
ゴム膨潤抑制剤(B)の含有量が、冷却液組成物100質量部に対して、0.03質量部以上0.9質量部以下である、上記冷却液組成物。 - 動粘度が、100℃で2.0mm2/秒以下である、請求項1に記載の冷却液組成物。
- ゴム膨潤抑制剤(B)の含有量が、冷却液組成物100質量部に対して、0.05質量部以上0.5質量部以下である、請求項1又は2に記載の冷却液組成物。
- 成分(A)の含有量が、冷却液組成物100質量部に対して、0.005質量部以上3質量部以下である、請求項1〜3のいずれか1項に記載の冷却液組成物。
- 更に防錆剤を含有する、請求項1〜4のいずれか1項に記載の冷却液組成物。
- 基剤(C)が有機溶剤を含む、請求項1〜5のいずれか1項に記載の冷却液組成物。
- 請求項1〜6のいずれか1項に記載の冷却液組成物を得るための自動車用エンジン濃縮冷却液組成物であって、基剤を用いて2〜10質量倍に希釈されて用いられる、上記濃縮冷却液組成物。
- 濃縮冷却液組成物100質量部に対して、下記成分:
(A)粘度特性改良剤としての界面活性剤;0.1〜99質量部;
(B)ゴム膨潤抑制剤:0.1〜5質量部;及び
(C’)溶剤:0〜99.8質量部
を含有する、請求項7に記載の濃縮冷却液組成物。 - 請求項1〜6のいずれか1項に記載の冷却液組成物を冷却液として用いる、内燃機関の運転方法。
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CN201780038342.4A CN109689834B (zh) | 2016-06-24 | 2017-06-20 | 汽车发动机冷却剂组合物,汽车发动机浓缩冷却剂组合物,以及操作内燃机的方法 |
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