JP2019099767A - Grease composition - Google Patents
Grease composition Download PDFInfo
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- JP2019099767A JP2019099767A JP2017235507A JP2017235507A JP2019099767A JP 2019099767 A JP2019099767 A JP 2019099767A JP 2017235507 A JP2017235507 A JP 2017235507A JP 2017235507 A JP2017235507 A JP 2017235507A JP 2019099767 A JP2019099767 A JP 2019099767A
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- oil
- grease composition
- fire
- vegetable
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- 239000004519 grease Substances 0.000 title claims abstract description 72
- 239000000203 mixture Substances 0.000 title claims abstract description 71
- 239000002199 base oil Substances 0.000 claims abstract description 33
- 239000002562 thickening agent Substances 0.000 claims abstract description 33
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 30
- 239000008158 vegetable oil Substances 0.000 claims abstract description 30
- 239000003921 oil Substances 0.000 claims abstract description 28
- 235000019198 oils Nutrition 0.000 claims abstract description 28
- 239000002480 mineral oil Substances 0.000 claims abstract description 22
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 21
- 239000004359 castor oil Substances 0.000 claims abstract description 6
- 235000019438 castor oil Nutrition 0.000 claims abstract description 6
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims abstract description 6
- 239000003549 soybean oil Substances 0.000 claims abstract description 5
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 5
- 235000019482 Palm oil Nutrition 0.000 claims abstract description 4
- 235000019485 Safflower oil Nutrition 0.000 claims abstract description 4
- 235000005687 corn oil Nutrition 0.000 claims abstract description 4
- 239000002285 corn oil Substances 0.000 claims abstract description 4
- 239000000944 linseed oil Substances 0.000 claims abstract description 4
- 235000021388 linseed oil Nutrition 0.000 claims abstract description 4
- 239000004006 olive oil Substances 0.000 claims abstract description 4
- 235000008390 olive oil Nutrition 0.000 claims abstract description 4
- 239000002540 palm oil Substances 0.000 claims abstract description 4
- 235000005713 safflower oil Nutrition 0.000 claims abstract description 4
- 239000003813 safflower oil Substances 0.000 claims abstract description 4
- 241000390166 Physaria Species 0.000 claims abstract 2
- 239000000344 soap Substances 0.000 claims description 13
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 235000019486 Sunflower oil Nutrition 0.000 claims description 4
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000002600 sunflower oil Substances 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- 150000002334 glycols Chemical class 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 abstract description 12
- 230000001050 lubricating effect Effects 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- -1 oleum rapae Substances 0.000 abstract description 5
- 235000003911 Arachis Nutrition 0.000 abstract 1
- 244000105624 Arachis hypogaea Species 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 235000020238 sunflower seed Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 229910052744 lithium Inorganic materials 0.000 description 8
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 8
- 239000000314 lubricant Substances 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000005292 vacuum distillation Methods 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical class O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000004166 Lanolin Substances 0.000 description 2
- 239000013556 antirust agent Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229940039717 lanolin Drugs 0.000 description 2
- 235000019388 lanolin Nutrition 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 235000019731 tricalcium phosphate Nutrition 0.000 description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- JLAMDELLBBZOOX-UHFFFAOYSA-N 3h-1,3,4-thiadiazole-2-thione Chemical compound SC1=NN=CS1 JLAMDELLBBZOOX-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000005956 Cosmos caudatus Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000000828 canola oil Substances 0.000 description 1
- 235000019519 canola oil Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012757 flame retardant agent Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 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
- 239000003755 preservative agent Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
本発明は、非延焼性に優れたグリース組成物に関する。 The present invention relates to a grease composition excellent in non-fire spreadability.
鉄鋼設備等の機械装置の軸受等には、集中給脂方式で多量のグリースが供給され、潤滑が行われている。機械装置が作動している環境が鉄鋼設備等の高温環境である場合には、機械装置の軸受等から漏洩したグリースに高温のスケールが飛散し混入すると、グリースに着火し、それに起因する火災が問題視されている。 A large amount of grease is supplied to the bearings of mechanical devices such as steel facilities by the centralized grease method, and lubrication is performed. When the environment in which the machine is operating is a high temperature environment such as steel facilities, if the high temperature scale is scattered and mixed in the grease leaking from the bearing of the machine etc., the grease is ignited and a fire caused thereby It is regarded as a problem.
特許文献１には、潤滑ベース油と、リチウム石けん、カルシウム石けん、若しくはナトリウム石けん又はこれらの混合物から選ばれた増粘剤と、グリース組成物を基にして１〜７重量％の酸化カルシウム、並びに炭酸カリウム、炭酸水素カリウム及び硫酸カリウムから選ばれたグリース組成物を基にして１〜７重量％のカリウム化合物を含む混合物の難燃添加剤を含有するグリース組成物が記載されている。 Patent Document 1 discloses a lubricating base oil, a thickener selected from lithium soap, calcium soap, sodium soap or a mixture thereof, and 1 to 7% by weight of calcium oxide based on a grease composition, and Grease compositions are described which contain a flame retardant additive of a mixture comprising 1 to 7% by weight of a potassium compound based on a grease composition selected from potassium carbonate, potassium hydrogen carbonate and potassium sulfate.
特許文献２には、軟膏缶燃焼試験で自己消火時間が５分間以内の自己消火性グリース組成物であって、基油と増ちょう剤を含み、グリース組成物の液体成分の引火点が２７０℃以上であり、基油が、鉱物油単独または鉱物油と合成油の混合物であり、基油が、ポリスチレン換算で１０００から３０００の分子量を示す減圧蒸留残渣油を２０質量％以上含む自己消火性グリース組成物が記載されている。 Patent Document 2 describes a self-extinguishing grease composition having a self-extinguishing time of less than 5 minutes in an ointment can burning test, which comprises a base oil and a thickener, and the flash point of the liquid component of the grease composition is 270 ° C. The base oil is a mineral oil alone or a mixture of a mineral oil and a synthetic oil, and the base oil is a self-extinguishing grease containing 20% by mass or more of vacuum distillation residual oil showing a molecular weight of 1000 to 3000 in terms of polystyrene. The composition is described.
特許文献３には、基油として４０℃の動粘度が１〜２０００ｍｍ２／ｓの特定のリン含有化合物を全基油量に対し５０質量％以上含有し、増ちょう剤として（Ａ）炭素数１２〜２４のヒドロキシ脂肪酸のリチウム塩及び（Ｂ）特定のリン酸類化合物のリチウム塩からなる複合体リチウム石けんを含有する難燃性グリース組成物が記載されている。 Patent Document 3 contains a specific phosphorus-containing compound having a kinematic viscosity of 1 to 2000 mm 2 / s at 40 ° C. as a base oil of 50% by mass or more based on the total amount of the base oil, and (A) carbon number as a thickener A flame retardant grease composition is described comprising a complex lithium soap consisting of a lithium salt of a 12 to 24 hydroxy fatty acid and a lithium salt of a (B) specific phosphoric acid compound.
特許文献４には、水とポリアルキレングリコールと吸水性ポリマーとを含む難燃性グリース組成物であって、吸水性ポリマー以外の増ちょう剤を含まず、水の含有量が３０〜５０質量％の範囲にあり、潤滑剤基油の動粘度が４０℃で５０〜２００ｍｍ２／ｓである難燃性グリース組成物が記載されている。 Patent Document 4 shows a flame retardant grease composition containing water, a polyalkylene glycol and a water absorbing polymer, which contains no thickening agent other than the water absorbing polymer, and has a water content of 30 to 50% by mass. of the range, the flame-retardant grease composition kinematic viscosity is 50 to 200 mm 2 / s at 40 ° C. of the lubricant base oils are described.
特許文献５には、液状潤滑油又は半固体状潤滑剤に、耐火性・難燃性付与剤として第三リン酸カルシウムを含有する潤滑剤組成物が記載され、該液状潤滑油は、鉱油、合成油、動植物油の少なくとも１種であること、該半固体状潤滑剤は、該液状潤滑油に増ちょう剤を配合したものであることが記載されている。 Patent Document 5 describes a lubricant composition containing a calcium phosphate as a fireproof and flame retardant agent in a liquid lubricating oil or a semisolid lubricant, and the liquid lubricating oil may be a mineral oil or a synthetic oil. It is described that the semi-solid lubricant is at least one kind of animal and vegetable oil, and the liquid lubricating oil is blended with a thickener.
特許文献６には、（１）２０〜８０重量％の範囲の基油、（２）２０〜８０重量％の範囲のスルホン酸カルシウム及びリチウムベースの石鹸からなる群から選択される少なくとも１種類のグリース増稠剤、及び（３）特定重量範囲の濃度の水を含む耐火性潤滑グリース組成物が記載されている。 Patent Document 6 discloses at least one selected from the group consisting of (1) a base oil in the range of 20 to 80% by weight, (2) a calcium sulfonate in the range of 20 to 80% by weight, and a lithium based soap. A refractory lubricating grease composition is described which comprises a grease thickener and (3) a concentration of water in a specified weight range.
特許文献１は、グリース組成物に難燃性を付与するために、炭酸カリウム等の粉体の難燃添加剤をグリース組成物に配合するので、集中給脂方式の配管においてプラッギングが起こってしまう恐れがある。また、難燃添加剤の粉体によって軸受等の部品の摩耗が促進され、設備寿命を短くする恐れがある。 Since patent document 1 mix | blends the flame retardant additive of powder, such as potassium carbonate, with a grease composition, in order to provide a flame retardance to a grease composition, a plugging will occur in piping of a centralized greasing system There is a fear. In addition, the powder of the flame retardant additive promotes the wear of parts such as bearings, which may shorten the life of the equipment.
特許文献２には、基油に高分子量の減圧蒸留残渣油を２０質量％以上含む自己消火性グリース組成物が記載されているが、このような粘度の高い鉱物油を用いるため、グリース組成物の低温粘度が増大し、寒冷地では集中給脂の際に圧送圧力が過大になり、圧送不良を引き起こす懸念がある。 Patent Document 2 describes a self-extinguishing grease composition containing 20% by mass or more of high-molecular weight vacuum distillation residue oil as a base oil, but since such a high viscosity mineral oil is used, the grease composition is described The low temperature viscosity increases, and in cold regions, there is a concern that pumping pressure may become excessive at the time of intensive lubrication, causing pumping failure.
特許文献３には、基油としてリン含有化合物を用いた難燃性グリース組成物が記載されているが、リン含有化合物の動粘度が小さすぎると難燃性及び自己消火性が低くなり、動粘度が大きすぎると流動性が悪くなり、グリース本来の性能が出にくくなると記載されているように、リン含有化合物の動粘度を特定範囲に制御する必要があり、また、基油としてリン含有化合物の含有量を全基油量に対して５０質量％以上必要とされており、鉱油系のグリースに比べて取り扱い、コスト上、実用性に問題がある。 Patent Document 3 describes a flame retardant grease composition using a phosphorus-containing compound as a base oil, but if the kinematic viscosity of the phosphorus-containing compound is too small, the flame retardancy and the self-extinguishing property become low, It is necessary to control the dynamic viscosity of the phosphorus-containing compound within a specific range as described in the case where the viscosity is too high and the fluidity becomes worse and the inherent performance of the grease becomes difficult to obtain, and the phosphorus-containing compound as a base oil The content of 50% by mass or more relative to the total amount of base oil is required, and there is a problem in the handling, cost, and practicability as compared with mineral oil-based greases.
特許文献４には、水とポリアルキレングリーコールと吸水ポリマーを含有する難燃性グリース組成物が記載されているが、該難燃性グリース組成物は水を含むため、通常のグリースにおいて増ちょう剤として使用されているリチウム石けんやジウレア化合物は、水との馴染み性が悪く、使用できないことに加えて、水を含有しているため、製鉄設備の機械装置のような１００℃を超える高温環境下に長時間放置されると、水が散逸して難燃性が消失してしまう恐れや、水が水蒸気となり配管内の圧力が上昇してしまう問題がある。 Patent Document 4 describes a flame retardant grease composition containing water, polyalkylene glycol and a water absorbing polymer, but since the flame retardant grease composition contains water, it is increased in conventional greases. Since lithium soap and diurea compounds used as agents are poorly compatible with water and can not be used in addition to water, they contain water, so high temperature environments exceeding 100 ° C like mechanical equipment for steel making facilities If left under for a long time, there is a concern that the water may be dissipated and the flame retardancy may be lost, or the water may become water vapor to increase the pressure in the piping.
特許文献５は、耐火性・難燃性付与剤として第三リン酸カルシウムを配合するため、粉体である第三リン酸カルシウムは、集中給脂方式での配管でプラッギングを起こし、また、すべり軸受では、該耐火性・難燃性付与剤の粉体によって部品の摩耗が促進され、設備寿命を短くする恐れがある。 Since patent document 5 mix | blends tribasic calcium phosphate as a fire resistance and a flame retardance imparting agent, the tribasic calcium phosphate which is powder causes the plugging in piping by a centralized oil supply system, Moreover, in a slide bearing, this is said The powder of the fireproof and flame retardant imparts wear to the parts and may shorten the life of the equipment.
特許文献６は、該難燃性グリース組成物は水を含むため、通常のグリースにおいて増ちょう剤として使用されているリチウム石けんやジウレア化合物は、水との馴染み性が悪く、使用できないことに加えて、水を含有しているため、製鉄設備の機械装置のような１００℃を超える高温環境下に長時間放置されると、水が散逸して難燃性が消失してしまう恐れや、水が水蒸気となり配管内の圧力が上昇してしまう問題がある。 In Patent Document 6, since the flame retardant grease composition contains water, lithium soaps and diurea compounds used as thickeners in ordinary greases have poor compatibility with water and can not be used. Water, which may cause water to dissipate and lose its flame retardancy if left in a high temperature environment exceeding 100 ° C for a long time, such as the machinery of a steelmaking facility. Becomes a steam and there is a problem that the pressure in piping will rise.
本発明は、上記した従来の構成が有していた問題を解決しようとするものであり、鉄鋼設備等の機械装置の軸受等の潤滑部位から漏れ出て堆積した潤滑グリース組成物が、高温に晒されたり、高温のスケールが飛散して混入し、潤滑グリース組成物が着火しても延焼しなく、機械装置の軸受等の集中給脂方式の配管においてプラッギングが起こり難い非延焼性グリース組成物を提供することを目的とする。 The present invention is intended to solve the problems of the above-described conventional constitution, and the lubricating grease composition which has leaked out from the lubricating portion such as the bearing of the mechanical device such as steel equipment becomes high temperature A non-burning grease composition which is difficult to cause plugging in concentrated grease piping such as bearings of machinery and the like because it does not expose or the high temperature scale scatters and mixes and the lubricating grease composition is ignited and does not spread fire. Intended to provide.
また、本発明は、優れた非延焼性及び低温粘度性能を有しているので、低温から高温までの広範囲の温度で良好に使用できる非延焼性グリース組成物を提供することを目的とする。
Another object of the present invention is to provide a non-fire spreadable grease composition that can be used well over a wide range of temperatures from low temperature to high temperature, since it has excellent non-fire spreadability and low temperature viscosity performance.
上記の課題を解決するために、本発明は、基油と増ちょう剤を含む非延焼性グリース組成物であって、基油が植物油を含む非延焼性グリース組成物である。 In order to solve the above problems, the present invention is a non-fire spreadable grease composition comprising a base oil and a thickener, wherein the base oil comprises a vegetable oil.
また、本発明は、前記基油が、鉱油と植物油、又は、鉱油と合成油と植物油の混合物である非延焼性グリース組成物である。 The present invention is also a non-fire spreadable grease composition, wherein the base oil is a mixture of a mineral oil and a vegetable oil, or a mineral oil, a synthetic oil and a vegetable oil.
本発明は、前記鉱油が、パラフィン系鉱油、ナフテン系鉱油から選択されるものである非延焼性グリース組成物である。 The present invention is the non-fire spreadable grease composition, wherein the mineral oil is selected from paraffinic mineral oil and naphthenic mineral oil.
本発明は、前記合成油が、合成炭化水素油、ジフェニルエーテル油、エステル類、グリコール類からなる群から選択されるものである非延焼性グリース組成物である。 The present invention is the non-fire spreadable grease composition, wherein said synthetic oil is selected from the group consisting of synthetic hydrocarbon oil, diphenyl ether oil, esters, and glycols.
本発明は、前記植物油が、ヒマワリ油、菜種油、ヒマシ油、アマニ油、トウモロコシ油、紅花油、大豆油、落花生油、レスケレラ油、パーム油、オリーブ油若しくは前記植物油の混合物からなる群から選択される少なくとも１種類からなるもの又はこれらを改質したものである非延焼性グリース組成物である。 The present invention is selected from the group consisting of sunflower oil, rapeseed oil, castor oil, castor oil, linseed oil, corn oil, safflower oil, soybean oil, peanut oil, resquerella oil, palm oil, olive oil or mixtures of the vegetable oils It is the non-fire spreadable grease composition which consists of at least 1 sort (s), or these modify | reform.
本発明は、前記植物油を全基油量に対して５〜１００質量％含むものである非延焼性グリース組成物である。 The present invention is a non-fire spreadable grease composition comprising 5 to 100% by mass of the vegetable oil based on the total amount of base oil.
さらに、本発明は、前記増ちょう剤が、金属石けん系増ちょう剤、ウレア系増ちょう剤、無機系増ちょう剤、有機系増ちょう剤からなる群から選択される少なくとも１種類からなる非延焼性グリース組成物である。 Furthermore, according to the present invention, the non-fire spreader comprises at least one selected from the group consisting of metal soap thickeners, urea thickeners, inorganic thickeners, organic thickeners. Grease composition.
本発明のグリース組成物は、上記のように構成されているので、優れた非延焼性及び低温粘度を有することによって、潤滑環境の厳しい機械設備、高温のスケールが飛散するような厳しい環境に設置された鉄鋼設備に設けた摺動部や回転部に組み込まれた軸受等に適用することが可能になり、高温のスケールが漏れ出て堆積した潤滑グリースに混入や侵入しても、延焼し難いので、作業現場の安全性を向上することができる。また、本発明のグリース組成物は、良好な低温粘度性能を備えているので、寒冷地での圧送不良の懸念が少ない。また、固体添加剤を用いていないため、機械装置の軸受等に集中給脂するための配管等のプラッギングが起こり難いという効果を有する。さらに水を含有しないため、水蒸気による配管内の圧力上昇を引き起こすこともない。 Since the grease composition of the present invention is configured as described above, by having excellent non-fire spreadability and low temperature viscosity, the grease composition of the present invention is installed in a severe mechanical environment of a lubricating environment, a severe environment in which high temperature scale is scattered. It becomes possible to apply to the bearing etc. which were installed in the sliding part and rotating part which were provided in the above-mentioned steel equipment, and it is difficult to spread fire even if high temperature scale leaks and mixes in or enters lubricating grease accumulated. Therefore, the safety of the work site can be improved. In addition, since the grease composition of the present invention has good low temperature viscosity performance, there is little concern of pumping failure in cold regions. In addition, since no solid additive is used, plugging of piping or the like for intensively supplying grease to bearings or the like of a mechanical device is unlikely to occur. Furthermore, since it does not contain water, it does not cause the pressure rise in piping by water vapor.
本発明のグリース組成物は、基油として、植物油を含むことを特徴とし、前記植物油として、ヒマワリ油、菜種油、ヒマシ油、アマニ油、トウモロコシ油、紅花油、大豆油、落花生油、レスケレラ油、パーム油、オリーブ油若しくは前記植物油の混合物からなる群から選択される少なくとも１種類からなるもの又はこれらを改質したものを用いることができる。植物油の多くは、不飽和結合を有しているが、その精製工程で水素化等の処理により不飽和度を小さくすることが可能である。本発明においては、非延焼性、熱安定性等から、オレイン酸を高い割合で含む植物油が好ましく用いられる。植物油としては、オレイン酸を６０質量％以上含有するものが好ましく、７０質量％以上含有するものがより好ましい。このような、オレイン酸を高い割合で含む植物油として、高オレイン酸キャノーラ油、高オレイン酸菜種油、高オレイン酸ひまわり油、高オレイン酸大豆油などを好ましく例示することができ、高オレイン酸菜種油（ＨＬ菜種油）が特に好ましく用いられる。また、植物油は、品種改良や植物油中の不飽和脂肪酸の二重結合の一部を水添（水素付加）して改質することができる。このような改質によって一般的な植物油よりも酸化安定性を向上させることができる。 The grease composition of the present invention is characterized in that it contains a vegetable oil as a base oil, and as said vegetable oil, sunflower oil, rapeseed oil, castor oil, castor oil, linseed oil, corn oil, safflower oil, soybean oil, peanut oil, resquerella oil, What consists of at least 1 sort (s) selected from the group which consists of a palm oil, olive oil, or the mixture of the said vegetable oil, or these modified things can be used. Although many vegetable oils have unsaturated bonds, it is possible to reduce the degree of unsaturation by treatment such as hydrogenation in the purification process. In the present invention, vegetable oils containing a high proportion of oleic acid are preferably used from the viewpoint of non-fire spreadability, heat stability and the like. As vegetable oil, what contains 60 mass% or more of oleic acid is preferable, and what is contained 70 mass% or more is more preferable. As such a vegetable oil containing a high proportion of oleic acid, high oleic canola oil, high oleic rapeseed oil, high oleic sunflower oil, high oleic soybean oil and the like can be preferably exemplified, and high oleic rapeseed oil ( HL rapeseed oil is particularly preferably used. In addition, vegetable oils can be reformed or modified by hydrogenation (hydrogenation) of part of double bonds of unsaturated fatty acids in vegetable oils. Such modification can improve oxidation stability more than general vegetable oils.
植物油は、全基油量に対して５〜１００質量％含むものである。好ましくは５〜７０質量％、より好ましくは１０〜５０質量％含むものである。 Vegetable oil is contained 5 to 100% by mass with respect to the total amount of base oil. Preferably, it is 5 to 70% by mass, more preferably 10 to 50% by mass.
基油としては、パラフィン系鉱油を主に用い、低粘度のものから高粘度のものまで各種のものを用いることができる。パラフィン系鉱油は、パラフィン系炭化水素を多く含む原油の常圧蒸留残渣油を原料に減圧蒸留、溶剤脱れき処理、溶剤精製又は水素精製処理を行って、ニュートラル油等の各種パラフィン系鉱油が製造される。また減圧蒸留残渣油を脱れき精製したものは、ブライトストック（Ｂｒｉｇｈｔ Ｓｔｏｃｋ）と呼ばれている。ブライトストックは、原油の減圧蒸留残渣油を溶剤脱れき、溶剤抽出、溶剤脱ろう、水素精製して製造される高粘度潤滑油基油である。ブライトストックは、ニュートラル油に比べて粘度、分子量は大きく、ニュートラル油等の潤滑油基油と混合して、目的とする粘度の潤滑油を製造するときに用いられる。本発明によれば、ブライトストックは、基油全量に対して、１〜２０質量％用いられ、好ましくは５〜２０質量％、より好ましくは１０〜２０質量％用いられる。ブライトストックの外観は蛍光色が強く、透明で緑を帯びた明るい褐色をしており、常温では非常に粘い油で、動粘度が４０℃で４５０〜５５０ｍｍ２／ｓ程度のものが生産されている。 As the base oil, paraffinic mineral oil is mainly used, and various types of oils from low viscosity to high viscosity can be used. Paraffinic mineral oil is produced by vacuum distillation, solvent deasphalting treatment, solvent refining or hydrogen purification treatment using as the raw material atmospheric residual residue of crude oil containing a large amount of paraffinic hydrocarbon, and various paraffinic mineral oils such as neutral oil are produced. Be done. Moreover, what de-refined and refine | purified the vacuum distillation residual oil is called bright stock (Bright Stock). Brightstock is a high viscosity lubricant base oil produced by deasphalizing, vacuuming, solvent extracting, solvent dewaxing, hydrogen refining the vacuum distilled residual oil of crude oil. Bright stock is higher in viscosity and molecular weight than neutral oil, and is used when mixed with a lubricant base oil such as neutral oil to produce a lubricant of the desired viscosity. According to the present invention, the bright stock is used in an amount of 1 to 20% by mass, preferably 5 to 20% by mass, more preferably 10 to 20% by mass, based on the total amount of the base oil. Bright stock has a strong fluorescent color, is clear and greenish light brown, and is a very viscous oil at normal temperature, and has a dynamic viscosity of about 450 to 550 mm 2 / s at 40 ° C. ing.
増ちょう剤は、金属石けん系増ちょう剤、ウレア系増ちょう剤、無機系増ちょう剤、有機系増ちょう剤からなる群から選択される少なくとも１種類を用いる。配合量は基油との親和性、グリースの硬さにより変化するが、３〜２０質量％、好ましくは３〜１０質量％、より好ましくは５〜８質量％である。また、本発明の基油は植物油を含んでいるので、増ちょう剤との相溶性がよく、特に着火源がグリース組成物に混入しても、グリースが溶けやすくなるため、結果として、熱の分散性が高く、着火しても燃焼時間が短い。
The thickening agent is at least one selected from the group consisting of metal soap type thickening agents, urea type thickening agents, inorganic type thickening agents, and organic type thickening agents. The blending amount varies depending on the affinity to the base oil and the hardness of the grease, but it is 3 to 20% by mass, preferably 3 to 10% by mass, and more preferably 5 to 8% by mass. In addition, since the base oil of the present invention contains a vegetable oil, it has good compatibility with the thickener, and in particular, even if the ignition source is mixed into the grease composition, the grease is easily dissolved, and as a result, Have high dispersibility, and the combustion time is short even if it is ignited.
本発明のグリース組成物には、酸化防止剤、防錆剤、極圧剤、増粘剤、流動点降下剤、防腐剤、消泡剤等の通常グリース組成物に用いられる添加剤を含有させることができる。
例えば、防錆剤として、スルフォン酸金属塩、ソルビタンモノオレート等の多価アルコールの部分エステル、ラノリン脂肪酸ペンタエリスリトールエステル、２-メルカプトチアジアゾールなどをグリースの全量基準で、０．１〜５質量％使用できる。
また酸化防止剤として、４,４’-テトラメチル-ジ-アミノジフェニルメタン、α-ナフチルアミン、オクチル化ジフェニルアミン、２,６-ジ-ターシャリーブチル-ｐ-クレゾール、２,４-ジメチル-６-ターシャリーブチルフェノールなどをグリースの全量基準で、０．１〜５質量％使用できる。
The grease composition of the present invention contains additives generally used in grease compositions such as antioxidants, rust inhibitors, extreme pressure agents, thickeners, pour point depressants, preservatives, antifoam agents, etc. be able to.
For example, 0.1-5% by mass of a metal salt of sulfonic acid, a partial ester of polyhydric alcohol such as sorbitan monooleate, lanolin fatty acid pentaerythritol ester, 2-mercaptothiadiazole, etc. is used as an antirust agent, based on the total amount of grease. it can.
Further, as antioxidants, 4,4'-tetramethyl-di-aminodiphenylmethane, α-naphthylamine, octylated diphenylamine, 2,6-di-tertiary butyl-p-cresol, 2,4-dimethyl-6-tasha 0.1 to 5% by mass of lebutylphenol or the like can be used based on the total amount of the grease.
本発明のグリース組成物は、高温環境下で使用できる。すなわち、３００℃程度で使用でき、好ましくは２５０℃以下で使用できる。また、鉄鋼設備の圧延ロールの軸受等の使用において、９００℃〜９５０℃程度の着火源が混入してしまった場合においても延焼のリスクを下げることができる。さらに、本発明のグリース組成物は、前記したように良好な低温粘度性能を備えているので、寒冷地での使用にも適しており、結果として低温から高温までの広範囲の温度環境下で良好に使用できる。 The grease composition of the present invention can be used in a high temperature environment. That is, it can be used at about 300 ° C., preferably at 250 ° C. or less. Further, even in the case where an ignition source of about 900 ° C. to 950 ° C. is mixed in the use of bearings of rolling rolls of steel facilities, etc., the risk of fire spreading can be reduced. Furthermore, since the grease composition of the present invention has good low temperature viscosity performance as described above, it is also suitable for use in cold regions, and as a result, it is good under a wide range of temperature environment from low temperature to high temperature. It can be used for
本発明のグリース組成物の着火試験の評価は以下の方法により行う。
試験温度に設定した電気炉で３／４インチ鋼球を９００℃に加熱しておき、グリース２０．０ｇをメンタム缶(内径５３ｍｍ、深さ２０ｍｍ)に入れ、次いでドラフト内でメンタム缶に、鋼球１個を落下させて、その時の着火の有無と、着火した場合はその燃焼継続時間を測定し、この燃焼継続時間の長短により非延焼性を評価する。
本発明の実施例において着火試験は、ウレア系増ちょう剤の場合、１２０秒以下、リチウム石けん系増ちょう剤の場合、６０秒以下のものを非延焼性ありと評価した。
The evaluation of the ignition test of the grease composition of the present invention is performed by the following method.
The 3/4 inch steel ball is heated to 900 ° C in an electric furnace set at the test temperature, 20.0 g of grease is put into a mentum can (inner diameter 53 mm, depth 20 mm), and then into a mentum can in a draft One ball is dropped and the presence or absence of ignition at that time and the combustion continuation time when it is ignited are measured, and the non-fire spreadability is evaluated by the length of this combustion continuation time.
In the examples of the present invention, the ignition test was evaluated as non-fire spreadable in the case of 120 seconds or less in the case of a urea-based thickener and 60 seconds or less in the case of a lithium soap-based thickener.
本発明のグリース組成物の低温粘度の測定は以下の方法により行う。
低温粘度は、０℃における見掛け粘度をレオメーター装置を用いて測定した。０℃でせん断速度を１から１０００ｓ-1まで変化させていった際の１０ ｓ-1と１００ ｓ-1の粘度を評価した。せん断速度はひずみ速度ともよばれ、ひずみを与える速度であり、その単位がｓ-1になる。
また、本発明の実施例において低温粘度は、ウレア系増ちょう剤及びリチウム石けん系増ちょう剤の場合とも、１０ ｓ-1における粘度と１００ ｓ-1における粘度とがいずれとも１００Ｐａ・ｓ以下となるものを圧送性に優れると評価した。
The measurement of the low temperature viscosity of the grease composition of the present invention is carried out by the following method.
Low temperature viscosity was measured by using a rheometer apparatus for apparent viscosity at 0 ° C. 0 was assessed 10 viscosity of s -1 and 100 s -1 when the shear rate went varied from 1 to 1000 s -1 at ° C.. The shear rate, also called strain rate, is the rate at which strain is applied, and its unit is s −1 .
Further, in the examples of the present invention, the low temperature viscosity is 100 Pa · s or less for both of the viscosity at 10 s -1 and the viscosity at 100 s -1 even in the case of urea thickener and lithium soap thickener. Were evaluated as excellent in pumpability.
実施例１〜９、比較例１〜５
表１及び表２に示すように、基油、増ちょう剤他を各種、各量で使用してグリース組成物を製造し、その着火試験及び低温粘度性能を評価した。
Examples 1 to 9 and Comparative Examples 1 to 5
As shown in Tables 1 and 2, various grease compositions were prepared using various amounts of base oil, thickener and others, and their ignition tests and low temperature viscosity performance were evaluated.
鉱油（Ｎ７００）：１００℃の動粘度１３．６ｍｍ２／ｓ、コスモ石油ルブリカンツ（株）製
鉱油（Ｎ４６０）：１００℃の動粘度３３．３ｍｍ２／ｓ、ＪＸＴＧエネルギー（株）製
増ちょう剤（ウレア）：オクチルアミンとジフェニルメタンジイソシアネート（ＭＤＩ）を反応させたもの
増ちょう剤（リチウム石けん）：水酸化リチウムとヒマシ硬化油を反応させたもの
防錆剤：ラノリン脂肪酸ペンタエリスリトールエステル
酸化防止剤：オクチル化ジフェニルアミン
Mineral oil (N700): kinematic viscosity of 13.6 mm 2 / s at 100 ° C, manufactured by Cosmo Petroleum Lubricants Co., Ltd. mineral oil (N 460): kinematic viscosity of 33.3 mm 2 / s at 100 ° C, thickening agent manufactured by JXTG Energy Co., Ltd. (Urea): A product obtained by reacting octylamine and diphenylmethane diisocyanate (MDI) Thickener (lithium soap): A product obtained by reacting lithium hydroxide and a castor-hardened oil Antirust agent: Lanolin fatty acid pentaerythritol ester Antioxidant: Octylated diphenylamine
上記結果から、基油に植物油を含有させると、非延焼性に優れると共に低温粘度性能に優れた効果を有している。すなわち、本発明は、鉄鋼設備等の機械装置の軸受等から漏れ出て下に蓄積した潤滑グリース組成物に高温のスケールが飛散して混入してきたり、高温雰囲気に晒されたりしても、 潤滑グリース組成物が延焼し難く、また機械装置の集中給脂の配管等においてプラッギングが起こり難い非延焼性潤滑グリース組成物である。
また、本発明のグリース組成物は、優れた低温粘度性能を備えているので、寒冷地での使用にも適しており、結果として、低温から高温までの広範囲の温度環境下で良好に使用できる。
From the above results, when the base oil contains a vegetable oil, it has excellent non-fire spreadability and excellent low temperature viscosity performance. That is, according to the present invention, even if the high temperature scale is scattered and mixed into the lubricating grease composition which has leaked out from the bearings of mechanical devices such as steel facilities and accumulated below, or is exposed to a high temperature atmosphere, The grease composition is a non-burning lubricating grease composition which is difficult to spread fire and which is less likely to cause plugging in piping etc. of centralized lubrication of machinery.
In addition, the grease composition of the present invention has excellent low temperature viscosity performance, so it is also suitable for use in cold regions, and as a result, it can be used well in a wide range of temperature environments from low temperature to high temperature. .
Claims (7)
The said thickening agent consists of at least 1 sort (s) selected from the group which consists of a metal soap type thickening agent, a urea type thickening agent, an inorganic type thickening agent, and an organic type thickening agent. The non-fire spreadable grease composition as described in 1 above.
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