200831662 九、發明說明 【發明所屬之技術領域】 本發明之液壓油組成物，更詳細地係關於具良好的節 能性、熱安定性（耐淤泥性）、耐磨耗性、抗黏著性（耐 ~ 刮損性）、離水性及減低滑道部份之摩擦性等，適用於油 β 壓機械領域、加工機械領域、產業機械領域等之液壓油組 成物。 【先前技術】 液壓油係使用於油壓機械及裝置等油壓系統之動力傳 達、力量控制、緩衝等致動之動力傳達流體，亦可達成滑 道部份之潤滑機能。 油壓迴路內之幫浦、控制閥、油壓缸等金屬一金屬及 金屬-橡膠（樹脂）等存在有滑道部份。使用於該等油壓 迴路之液壓油，被要求須具備耐磨耗性、抗黏著性及減低 # 摩擦性等良好的摩擦特性。 由於近年來對於液壓系統的要求更加高性能化，爲於 高速下進行精密控制，藉由滑動閥等控制油壓系統之流量 、方向等例子，進而裝載有伺服閥之例子愈來愈多。這類 滑動閥及伺服閥之性能，因液壓油中產生淤泥性而被大幅 降低，因而轉變爲強烈尋求於所使用之液壓油，於具優異 的摩擦特性同時，可抑制產生淤泥性而爲具優異的耐淤泥 性之液壓油。 進而，由節能導向之觀點，藉由減輕於滑道部份之抵 -5- 200831662 抗，而可達成降低能源損失及抑制油溫上升等液壓油之高 性能化。 以往，廣泛使用二硫代磷酸鋅（ZnDTP )做爲液壓油 之磨耗防止劑。然而Ζη〇ΤΡ正是產生淤泥性之原因，混 合於液壓油後無法長期使用。另外，根據使用ZnDTP之 磨耗防止效果，因對金屬表面會產生磷酸鐵等硬被膜，而 因該膜之形成而使滑道部位之摩擦係數上升，由節能之觀 點而言無法稱之爲令人滿意。 因而目前正檢討不使用ZnDTP，亦即使用非鋅系磨耗 防止劑之液壓油。 例如，目前已提案有取代ZnDTP，將混合芳香族磷酸 酯、亞磷酸酯及其胺鹽、硫代磷酸酯、/3 一二硫代磷醯化 丙酸化合物等做爲磨耗防止劑之液壓油（參照例如專利文 件 1、· 2 及 3 )。 然而’於該等液壓油中’無法稱其爲充分滿足耐淤泥 性（淤泥抑制性）、耐磨耗性等摩擦特性，而做爲可對應 液壓系統之高性能化及節能性之液壓油，尙有改善的空間 〇 另外已揭¥有取代ZnDTP，組合使用氧化防止劑、磷 系及/或硫系化合物、及N -油醯基胺酸酯之組成物（參 照例如專利文件4 )，及進而含有將含磷竣酸化合物、與 分献型&度數fe升劑進行組合之組成物（參照例如專利 文件5)。 然而，即便於該等液壓油中，亦無法稱其爲充分具有 -6 - 200831662 耐淤泥性（淤泥抑制性）、耐磨耗性等摩擦特性者。 因此，現狀爲無法找到均衡地滿足液壓油所要求之節 能性、熱安定性（耐淤泥性）、耐磨耗性、抗黏著性（耐 刮損性）、進而離水性及減低滑道部份之摩擦性等。 ' 專利文件1 :特開平1 0-67993號公報 • 專利文件2 :特開平1 1 -2 1 7577號公報 專利文件3 :特開2002-26597 1號公報 _ 專利文件4 :特開2002- 1 29 1 80號公報 專利文件5 :特開2005-3 07203號公報 【發明內容】 本發明於此狀況下，以提供均衡地滿足對液壓油所要 求之節能性、熱安定性（耐淤泥性）、耐磨耗性、抗黏著 性（耐刮損性）、離水性及減低滑道部份之摩擦性等之液 壓油組成物爲目的。 • 本發明之發明者們，累積專心硏究開發均衡滿足對液 壓油所要求之前述性能之液壓油組成物後，發現藉由於具 特定性狀之基油中，分別以規定之比例混合分子量爲特定 範圍內之聚甲基丙烯酸酯系黏度指數提升劑、醯胺化合物 、特定之磷酸酯系化合物、及特定之潤滑性增加劑，可達 成該目的。本發明係基於相關知識而完成者。 亦即本發明係提供 〔1〕一種液壓油組成物，其特徵爲混合具有未達 〇·〇3質量％之硫成分、90質量％以上的飽和成分、黏度 200831662 指數80以上及於40°C之絕對黏度爲1〜l〇〇〇mPa · s之性 狀的基油、 (A) 1〜20質量％之重量平均分子量爲1萬〜5萬的 聚甲基丙烯酸酯系黏度指數提升劑、 B ) 0.005〜5質量％之醯胺化合物、 (C) 0.005 〜5 質量 ％之（c-1) 一 般式（II-1) W匕1] ⑩ H—0\ R1-〇—:Ρ=0 ·β·(Π-1) r2-o^ (式中，R1表τκ氫原子或碳數1〜18之煙基、R2表示碳 數1〜18之烴基）所示酸性磷酸酯系化合物及/或（c-2 ) 一般式（ΙΙ-2 ) [化2] • r3-〇\ 響 /P-OH ---(11-2) R4—0 • (式中，R3表示氫原子或碳數1〜18之烴基、R4表示碳 - 數1〜1 8之烴基）所示酸性亞磷酸酯系化合物、與 (D ) 0.005〜5質量％的至少1種選自多元醇酯、烷 醇胺、硫化烯烴及硫代胺基甲酸酯化合物所成者，以及 〔2〕更添加（E) 0.005〜5質量％的至少1種選自酸 性磷酸酯系化合物之胺鹽及一般式（IV) 200831662 [化3] R7—0\ R8—〇—P=〇 …(IV) R9-。/ (式中，R7〜R9各獨立表示碳數1〜18的烴基）所示磷 三酯系化合物之如〔1〕之液壓油組成物。 根據本發明，可提供具良好的節能性、熱安定性（ 淤泥性）、耐磨耗性、抗黏著性（耐刮損性）、離水性 減低滑道部份之摩擦性等，適用於油壓機械領域、加工 械領域、產業機械領域等之液壓油組成物。 本發明之液壓油組成物，係混合基油、（A )聚甲 丙烯酸酯系黏度指數提升劑、（B )醯胺化合物、（C ) c-1)酸性磷酸酯化合物及/或（c-2)酸性亞磷酸酯系化 物、與（D )特定之潤滑性增加劑而構成之組成物。 本發明之液壓油組成物所使用之基油係具有未達0. 質量％之硫成分、90質量％以上的飽和成分、黏度指 80以上及於40°C之絕對黏度爲1〜lOOOmPa · s。 該基油之硫成分爲0.03質量％以上、飽和成分未 90質量％時，於氧化安定性不佳，氧化數上升及產生淤 性的同時。對非鐵金屬之腐触性會增加，無法充分發揮 發明之效果。硫成分以0.02質量％以下爲佳，0.01質 %以下更佳。飽和成分以95質量％以上爲佳，98質量 以上更佳。 前述之硫成分係根據ns K 2541所測定之値，飽和 酸 耐 及 機 基 ( 合 03 數 達 泥 本 量 % 成 -9- 200831662 分係根據ASTM D 2007所測定之値。 該基油之黏度指數未達8 0時，可能會出現 度變低，而減低潤滑性能，反之則低溫時黏度變 產生幫浦吸引力不良的情形。自擴大低溫至高溫 ° 之溫度領域之觀點，黏度指數以1 〇〇以上爲佳’ • 更佳。 前述之黏度指數係根據ns K 2283「石油製 φ 試驗方法」所測定之値。 該基油於40°C之絕對黏度未達ImPa · s時 不佳，有可能產生異常磨耗及黏著性，且有發生 危險性。反之若超過l〇〇〇mPa· s時，於低溫時 變大，可能會有難以產生幫浦的吸引力而使機械 。自摩擦特性、火災之可能性及於低溫時所產生 抗之觀點，於40C之絕對黏度以3〜500mPa · s ~ 3 0 OmP a · s 更佳，10 〜150mPa· s 最佳。 φ 該基油若爲具前述性狀者，礦物油及合成油 用。針對該礦物油及合成油之種類及其他特性並 以限定，礦物油可使用例如藉由溶液純化、加氫 般之純化法所得之石鱲基系礦物油、中間基系礦 基系礦物油等。 合成油可舉出例如聚丁烯、聚烯烴〔α -烯 聚合物〕、各種酯類（例如多元醇酯、二酸酯、 )、各種醚類（例如聚苯醚等），及粗蠟和GTL 異化物等。 高溫時黏 高，可能 之可使用 1 2 0以上 品動黏度 潤滑性能 火災的高 黏性抵抗 致動不良 的黏性抵 爲佳，5 均可被使 未特別加 純化等一 物油或萘 烴（共） 磷酸酯等 WAX之 -10 - 200831662 於本發明中，基油可使用上述之礦物油之一種，亦可 組合二種以上而使用。另外，也可使用上述之合成油之一 種，或可組合二種以上而使用。進而亦可組合一種以上之 礦物油與一種以上之合成油而加以使用。 於本發明之液壓油組成物中（A )成分之聚甲基丙烯 酸酯系黏度指數提升劑，係重量平均分子量於1萬〜5萬 範圍者，該類物質可舉出例如聚甲基丙烯酸酯及分散型聚 甲基丙烯酸酯等。前述之重量平均分子量未達1萬者有可 能無法充分發揮黏度指數提升效果，超過5萬時，於使用 中會有聚合物被切斷而無法發揮黏度指數提升效果。重量 平均分子量以2萬〜4萬者爲佳。 且該重量平均分子量係根據膠體透析層析法（GPC ) 所測定之聚苯乙烯之換算値。 於本發明中，使用分散型聚甲基丙烯酸酯時並無特別 限制，可舉出例如甲基丙烯酸酯與具乙烯性不飽和鍵結之 含氮單量體之共聚合體。 上述之具乙烯性不飽和鍵結之含氮單量體可舉出二甲 基胺甲基甲基丙烯酸酯、二乙基胺甲基甲基丙烯酸酯、二 甲基胺乙基甲基丙烯酸酯、二乙基胺乙基甲基丙烯酸酯、 2 —甲基一 5 —吡啶乙烯、嗎啉基甲基甲基丙烯酸酯、嗎啉 基乙基甲基丙烯酸酯、N -乙烯基吡咯烷酮以及該等之混合 物等。 甲基丙烯酸酯與具乙烯性不飽和鍵結之含氮單量體之 共聚合比例係以質量比爲8 0 : 2 0〜9 5 : 5爲佳。 -11 - 200831662 於本發明之液壓油組成物中，（A )成分之聚甲基丙 烯酸酯系黏度指數提升劑，可單獨使用一種，亦可組合二 種以上而使用。另外，其混合量以組成物之全量爲基準時 ，選定爲1〜20質量％之範圍。於該混合量未達1質量％ 時，無法充分發揮黏度指數提升效果，反之超過20質量 %時，未發現與其量等比例之增加效果。 該（A )成分之混合量以1〜1 5質量％爲佳，2〜1 〇 質量％更佳。 於本發明之液壓油組成物中，（B )成分之醯胺化合 物，以脂肪酸與聚烷烯聚胺類之縮合反應生成物爲佳，例 如可舉出碳數8〜24之脂肪酸與下述一般式（I )所示之 聚乙烯聚胺之縮合反應生成物。 H2N ( CH2CH2NH ) nH ( I ) (式中n係表示平均値爲2〜6之數字）。 前述之碳數8〜24之脂肪酸，包含直鏈或具支鏈之飽 和及不飽和脂肪酸，例如可舉出辛酸、壬酸、癸酸、十一 酸、十二酸、十四酸、十六酸、十八酸（硬酯酸）、羥基 十八酸、二十酸、二十一酸、二十二酸、二十三酸、二十 四酸、辛烯酸、癸烯酸、十二烯酸、十四烯酸、十六烯酸 、十八燃酸（油酸）、十九烯酸、二十儲酸、二i--烯酸 、二十二烯酸、二十三烯酸、二十四烯酸、等直鏈飽和及 不飽和脂肪酸、即分別與該等對應之具支鏈之脂肪酸。 -12- .(11一1) 200831662 其中，以總碳數1 8之具支鏈脂肪酸之異硬酯 前述之以一般式（I )所示之聚乙烯聚胺之具 舉出例如乙二胺、二乙烯三胺、三乙烯四胺、四乙 、五乙烯六胺、六乙烯七胺等。 使用於本發明之液壓油組成物之醯胺化合物（ 以將上述之脂肪酸與聚烷烯聚胺做爲反應原料而得 生成物爲佳。該反應生成物以使脂肪酸與聚烷烯聚 知之方法進行縮合反應爲佳。例如使反應溫度1 00〜 ，反應時間爲1〜5小時。此時，做爲反應原料之 與聚烷烯聚胺可爲任意比例，但以聚烷烯聚胺稍稍 佳。 於本發明中，該等（B )成分之醯胺化合物， 使用一種，亦可組合二種以上而使用。該（B )成 合量以組成物之全量爲基準，在0.005〜5質量％ ，0.01〜5質量％爲佳，〇.〇2〜3質量％更佳。 於本發明之液壓油組成物中，（C )成分中之 酸性磷酸酯化合物係以一般式（II- 1 )所示之化合衫 [化4] H—0 R^o^p^o R2-。/200831662 IX. Description of the invention [Technical field to which the invention pertains] The hydraulic oil composition of the present invention relates in more detail to good energy conservation, thermal stability (sludge resistance), abrasion resistance, and adhesion resistance (resistance) ~ Scratch resistance), water repellency and friction reduction of the slide portion, etc., are applicable to hydraulic oil compositions in the field of oil beta press machinery, processing machinery, and industrial machinery. [Prior Art] Hydraulic oil is used to transmit fluids such as power transmission, force control, and buffering of hydraulic systems such as hydraulic machines and devices. It also achieves lubrication of the slide portion. There are slide parts in the metal, metal, metal-rubber (resin), such as pumps, control valves, and hydraulic cylinders in the hydraulic circuit. Hydraulic fluids used in these hydraulic circuits are required to have good friction characteristics such as wear resistance, anti-adhesion and reduced friction. In recent years, the requirements for hydraulic systems have become more high-performance. In order to perform precise control at high speeds, there are more and more examples of servo valves that are controlled by the flow rate and direction of the hydraulic system by sliding valves and the like. The performance of this type of sliding valve and servo valve is greatly reduced due to the sludge generated in the hydraulic oil, so it is converted into a hydraulic oil that is strongly sought for use, and has excellent friction characteristics while suppressing the generation of sludge. Excellent sludge-resistant hydraulic oil. Further, from the viewpoint of energy saving, by reducing the resistance of the slide portion to -5-200831662, it is possible to achieve high performance of hydraulic oil such as reduction of energy loss and suppression of oil temperature rise. In the past, zinc dithiophosphate (ZnDTP) has been widely used as an anti-wear agent for hydraulic oil. However, Ζη〇ΤΡ is the cause of sludge, and it cannot be used for a long time after being mixed with hydraulic oil. In addition, according to the abrasion prevention effect using ZnDTP, a hard film such as iron phosphate is generated on the metal surface, and the friction coefficient of the slide portion is increased by the formation of the film, which cannot be called from the viewpoint of energy saving. satisfaction. Therefore, hydraulic oil which does not use ZnDTP, that is, a non-zinc-based anti-wear agent, is currently being reviewed. For example, it has been proposed to replace ZnDTP with a mixture of aromatic phosphates, phosphites and their amine salts, phosphorothioates, /3 dithiophosphoric acid propionic acid compounds, etc. as anti-wear hydraulic oils. (See, for example, Patent Documents 1, 2, and 3). However, 'in these hydraulic oils' cannot be said to satisfy the friction characteristics such as sludge resistance (sludge suppression) and wear resistance, and it is a hydraulic oil that can correspond to the high performance and energy saving of the hydraulic system.尙 改善 改善 Zn Zn Zn 有 有 Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Further, it contains a composition in which a phosphonic acid-containing compound is combined with a fractional & degree fe liter (see, for example, Patent Document 5). However, even in these hydraulic oils, it cannot be said that it has sufficient friction characteristics such as sludge resistance (sludge suppression) and abrasion resistance. Therefore, the current situation is that it is impossible to find a balance to meet the energy saving, thermal stability (sludge resistance), wear resistance, anti-adhesion (scratch resistance) required for hydraulic oil, and further to remove water and reduce the slide portion. Friction and so on. 'Patent Document 1: Japanese Unexamined Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. In the case of the present invention, it is possible to provide energy balance and thermal stability (sludge resistance) required for hydraulic oil in a balanced manner in accordance with the present invention. For the purpose of abrasion resistance, anti-adhesion (scratch resistance), water repellency and frictional properties of the slide portion. • The inventors of the present invention have accumulated their efforts to develop a hydraulic oil composition that satisfies the aforementioned properties required for hydraulic oil, and found that the molecular weight of the base oil having a specific property is specified in a predetermined ratio. This can be achieved by a polymethacrylate-based viscosity index-enhancing agent, a guanamine compound, a specific phosphate-based compound, and a specific lubricity-increasing agent in the range. The present invention has been completed based on relevant knowledge. That is, the present invention provides [1] a hydraulic oil composition characterized by mixing a sulfur component having a mass ratio of less than 质量·〇3, a saturated component of 90% by mass or more, a viscosity of 200831662 index of 80 or more, and 40°C. A base oil having an absolute viscosity of 1 to 1 〇〇〇 mPa · s, (A) 1 to 20% by mass of a polymethacrylate-based viscosity index enhancer having a weight average molecular weight of 10,000 to 50,000, B ) 0.005 to 5 mass% of the indoleamine compound, (C) 0.005 to 5 mass% of (c-1) general formula (II-1) W匕1] 10 H—0\ R1-〇—:Ρ=0 β·(Π-1) r2-o^ (wherein, R1 represents a τκ hydrogen atom or a ketone group having 1 to 18 carbon atoms, and R2 represents a hydrocarbon group having 1 to 18 carbon atoms) and/or an acid phosphate compound and/or (c-2) General formula (ΙΙ-2) [Chemical 2] • r3-〇\响/P-OH ---(11-2) R4—0 • (wherein R3 represents a hydrogen atom or a carbon number of 1 An acidic phosphite-based compound represented by a hydrocarbon group of ～18, R4 represents a hydrocarbon group having a carbon number of 1 to 18, and at least one selected from the group consisting of (D) 0.005 to 5% by mass of a polyol ester, an alkanolamine, and a sulfide. Olefin and thiocarbamate compounds, and 2] Further adding (E) 0.005 to 5 mass% of at least one amine salt selected from the group consisting of acid phosphate compounds and general formula (IV) 200831662 [Chemical 3] R7-0/R8-〇-P=〇... IV) R9-. / (In the formula, R7 to R9 each independently represent a hydrocarbon group having 1 to 18 carbon atoms), a phosphorus triester compound such as the hydraulic oil composition of [1]. According to the present invention, it is possible to provide good energy saving, thermal stability (sludge), abrasion resistance, anti-adhesion (scratch resistance), water repellency, friction reduction of the slide portion, etc., and is suitable for oil Hydraulic oil composition in the field of pressure machinery, processing machinery, and industrial machinery. The hydraulic oil composition of the present invention is a mixed base oil, (A) a polymethacrylate-based viscosity index-enhancing agent, (B) a guanamine compound, (C) c-1) an acid phosphate compound, and/or (c- 2) A composition comprising an acidic phosphite compound and (D) a specific lubricity increasing agent. The base oil used in the hydraulic oil composition of the present invention has a sulfur component of less than 0.1% by mass, a saturated component of 90% by mass or more, a viscosity of 80 or more, and an absolute viscosity of 40 to 100 °C of 1 to 100 mPa·s. . When the sulfur content of the base oil is 0.03 mass% or more and the saturated component is less than 90 mass%, the oxidation stability is poor, the oxidation number is increased, and the silicity is generated. The susceptibility to non-ferrous metals will increase and the effects of the invention will not be fully realized. The sulfur component is preferably 0.02% by mass or less, more preferably 0.01% by mass or less. The saturated component is preferably 95% by mass or more, more preferably 98% by mass or more. The above-mentioned sulfur component is determined according to ns K 2541, and the saturated acid is resistant to the machine base (the amount of the mixture reaches the amount of the amount of the mud is -9-200831662. The viscosity of the base oil is determined according to ASTM D 2007. When the index is less than 80, the degree may be lower and the lubrication performance may be reduced. Otherwise, the viscosity at low temperature may cause a poor attraction of the pump. From the viewpoint of expanding the temperature range from low temperature to high temperature, the viscosity index is 1 〇〇The above is better' • Better. The viscosity index mentioned above is determined according to ns K 2283 “Test method for petroleum φ.” The base oil has a poor viscosity at 40 ° C and is not as good as ImPa · s. There is a possibility of abnormal wear and adhesion, and there is a risk of danger. On the other hand, if it exceeds l〇〇〇mPa·s, it becomes large at a low temperature, and it may be difficult to generate a pump and attract the machine. Self-friction characteristics , the possibility of fire and the resistance generated at low temperature, the absolute viscosity at 40C is 3~500mPa · s ~ 3 0 OmP a · s is better, 10 ~ 150mPa · s is best. φ If the base oil is With the aforementioned traits, mineral oil and synthesis For the mineral oil and the synthetic oil, the type and other characteristics of the mineral oil may be limited, and the mineral oil may be, for example, a sulphur-based mineral oil obtained by a solution purification or a hydrogenation purification method, or an intermediate-based mineral-based mineral oil. Examples of the synthetic oil include polybutene, polyolefin [α-ene polymer], various esters (for example, polyol esters, diesters), various ethers (for example, polyphenylene ether, etc.), and crude waxes. And GTL dissimilar compounds, etc. High viscosity at high temperatures, it is possible to use more than 120 properties of viscosity viscosity lubrication, high viscosity resistance to fire, good adhesion, 5 can be made without special purification, etc. In the present invention, the base oil may be one of the above-mentioned mineral oils, or a combination of two or more types may be used. Alternatively, the above may be used. One type of synthetic oil may be used in combination of two or more kinds. Further, it may be used by combining one or more kinds of mineral oils with one or more synthetic oils. Polymethyl group of component (A) in the hydraulic oil composition of the present invention acrylic acid The viscosity index increasing agent is a weight average molecular weight of 10,000 to 50,000. Examples of such materials include polymethacrylate and dispersed polymethacrylate. The weight average molecular weight is less than 10,000. The viscosity index may not be fully utilized. When the temperature exceeds 50,000, the polymer may be cut off during use and the viscosity index increase effect may not be exhibited. The weight average molecular weight is preferably 20,000 to 40,000. The average molecular weight is a conversion of polystyrene measured by colloidal dialysis chromatography (GPC). In the present invention, the dispersion type polymethacrylate is not particularly limited, and examples thereof include methacrylate and a copolymer of a nitrogen-containing monolith having an ethylenically unsaturated bond. The above nitrogen-containing monovalent body having an ethylenically unsaturated bond may, for example, be dimethylamine methyl methacrylate, diethylamine methyl methacrylate or dimethylamine ethyl methacrylate. , diethylamine ethyl methacrylate, 2-methyl-5-pyridylethylene, morpholinylmethyl methacrylate, morpholinylethyl methacrylate, N-vinylpyrrolidone, and the like a mixture or the like. The copolymerization ratio of the methacrylate to the nitrogen-containing monomer having an ethylenically unsaturated bond is preferably 80:20 to 9.5:5 by mass. -11 - 200831662 In the hydraulic oil composition of the present invention, the polymethyl acrylate-based viscosity index-improving agent of the component (A) may be used singly or in combination of two or more. Further, the blending amount is selected in the range of 1 to 20% by mass based on the total amount of the composition. When the amount of the mixture is less than 1% by mass, the viscosity index improving effect cannot be sufficiently exhibited. On the other hand, when it exceeds 20% by mass, the effect of increasing the ratio is not found. The compounding amount of the component (A) is preferably from 1 to 15% by mass, more preferably from 2 to 1% by mass. In the hydraulic oil composition of the present invention, the guanamine compound of the component (B) is preferably a condensation reaction product of a fatty acid and a polyalkene polyamine, and examples thereof include a fatty acid having 8 to 24 carbon atoms and the following. A condensation reaction product of a polyethylene polyamine represented by the general formula (I). H2N (CH2CH2NH) nH ( I ) (wherein n is a number representing an average 値 of 2 to 6). The above-mentioned fatty acid having a carbon number of 8 to 24, which contains a linear or branched saturated and unsaturated fatty acid, and examples thereof include caprylic acid, capric acid, capric acid, undecanoic acid, dodecanoic acid, tetradecanoic acid, and hexadecyl. Acid, octadecanoic acid (stearonic acid), hydroxyoctadecanoic acid, icosonic acid, behenic acid, behenic acid, trisuccinic acid, tetracosic acid, octenoic acid, decenoic acid, twelve Alkenoic acid, myristic acid, hexadecenoic acid, octadecanoic acid (oleic acid), nonadenoic acid, twenty storage acid, di-enic acid, icosenoic acid, eicosaenoic acid And tetradecanoic acid, such as linear saturated and unsaturated fatty acids, that is, branched fatty acids corresponding thereto. -12-. (11-1) 200831662 wherein, the isostearyl ester of a branched fatty acid having a total carbon number of 18 is a polyethylene polyamine represented by the general formula (I), for example, ethylenediamine. , diethylene triamine, triethylene tetramine, tetraethylene, pentaethylene hexamine, hexaethylene heptaamine and the like. The guanamine compound used in the hydraulic oil composition of the present invention (the product obtained by using the above-mentioned fatty acid and polyalkene polyamine as a reaction raw material is preferable. The reaction product is a method for collecting a fatty acid and a polyalkanene. The condensation reaction is preferably carried out, for example, the reaction temperature is 00 〜, and the reaction time is 1 to 5 hours. At this time, the polyalkylene polyamine can be used as a reaction raw material in any ratio, but the polyalkylene polyamine is slightly better. In the present invention, the guanamine compound of the component (B) may be used singly or in combination of two or more kinds. The amount of the (B) compound is 0.005 to 5% by mass based on the total amount of the composition. 0.01 to 5 mass% is more preferable, and 〇.〇2 to 3 mass% is more preferable. In the hydraulic oil composition of the present invention, the acid phosphate compound in the component (C) is represented by the general formula (II-1). The compound shirt [化4] H—0 R^o^p^o R2-./
於前述之一般式（n-i)中R1表示氫原子或碳 1 8之烴基’又R2表示碳數1〜1 8之烴基。碳數I 酸爲佳 體例可 烯五胺 B )， 之反應 胺以周 150°C 脂肪酸 過剩爲 可單獨 分之混 之範圍 (c-1 ) 數1〜 ^ 18之 -13- 200831662 烴基可舉出碳數1〜18之烷基、碳數2〜18之烯基、碳數 6〜18之芳基、碳數7〜18之芳烷基等。前述之該烷基及 烯基可爲直鏈狀、分支狀或環狀，其例可舉出甲基、乙基 、正丙基、異丙基、正丁基、異丁基、第二丁基' 第三丁 基、各種戊基、各種己基、各種辛基、各種癸基、各種十 二基、各種十四基、各種十六基、各種十八基、環戊基、 環己基、烯丙基、丙烯基、各種丁烯基、各種己烯基、各 種辛烯基、各種癸烯基、各種十二烯基、各種十四烯基、 各種十六烯基、各種十八烯基、環戊烯基、環己烯基等。 碳數6〜18之芳基可舉出苯基、甲苯基、二亞甲基、 萘基等，碳數7〜18之芳烷基可舉出苯甲基、苯乙基、甲 基苯甲基、甲基苯乙基、萘甲甲基等。 R1及R2之合計碳數以3〜36爲佳，因此，爲使R1及 R2之合計碳數爲3〜36，可分別選擇適當的基。 一般式（I1-1)之酸性磷酸酯化合物係酸性磷酸單酯 或酸性磷酸雙酯。 酸性磷酸單及雙酯可舉出例如單（二）正丙基酸性磷 酸鹽、單（二）正丁基酸性磷酸鹽、單（二）一 2一乙基 己基酸性磷酸鹽、單（二）癸基酸性磷酸鹽、單（二）十 二烷基酸性磷酸鹽、單（二）十三烷基基酸性磷酸鹽、單 (二）十四烷基酸性磷酸鹽、單（二）十六烷基酸性磷酸 鹽、單（二）十八院基酸性憐酸鹽、單（二）油基酸性磷 酸鹽等。 前述之（C )成分中之（c-2 )酸性亞磷酸酯化合物係 -14- 200831662 以一般式（II-2 )所示之化合物。 [化5] R3 — O' Λ /Ρ-ΟΗ "_(Π- 2) R4—。’ 一般式（ΙΙ-2 )中之R3，與前述一般式（Π-1 )中之 R1相同’一般式（ΙΙ-2)中之R4，與前述一般式（Π-1) 中之R2相同。針對R3及R4之合計碳數，亦與一般式（ II-1 )中酸性磷酸酯化合物之情形相同。 一般式（ΙΙ-2)之酸性亞磷酸酯化合物可舉出例如單 (二）一 2—磷化乙基己基氫酯、單（二）一磷化癸基氫 酯、單（二）一磷化十二基氫酯（單（二）一磷化十二烷 基氫酯）、單（二）一磷化十八基氫酯（單（二）一磷化 十八烷基氫酯）、單（二）一 9一磷化十八烯基氫酯（單 (二）一磷化油基氫酯）、單（二）一磷化苯基氫酯等。 於本發明中，該等（C )成分，可使用一 _上述之（ c-1 )酸性磷酸酯化合物，亦可組合二種以上而使用。另 外，可使用一種前述之（c-2 )酸性亞磷酸酯化合物，亦 可組合二種以上而使用。進而，亦可組合使用一種以上之 (c-1 )酸性磷酸酯化合物與一種以上之（c-2 )酸性亞磷 酸酯化合物。該（C)成分之混合量，以組成物之全量爲 基準，在0.005〜5質量％之範圍，0.01〜3質量％爲佳， 0.02〜2質量％更佳。與前述之（Β)成分混合量之關係係 以使（B ) / ( C )之質量比爲0·1〜4.0而進行混合爲佳 -15- 200831662 ，0.5〜3.0更佳。（Β) / (C)之質量比爲〇·1〜4·0時 ’具有防止油壓缸-橡膠（樹脂）間產生異常震動（滯滑 )現象之效果。 於本發明之液壓油組成物中，（D )成分之潤滑性增 加劑可自多元醇部份酯、烷醇胺、硫化烯烴、及硫代胺基 甲酸酯化合物中選用至少一種。 於該（D )成分之多元醇酯中，並未特別限制做爲原 料之多元醇，以脂肪族聚醇爲佳，例如可舉出乙二醇、二 乙二醇、三乙二醇、丙烯乙二醇、1，3-丙二醇、丁醚二醇 、新戊二醇等二元醇、甘油、三羥乙基乙烷、三羥乙基丙 烷等三元醇、雙甘油、三甘油、異戊四醇、雙異戊四醇、 甘露糖醇、山梨糖醇等四元以上之多元醇。 針對部份酯之酯鍵結數，以至少殘存1個羥基爲佳， 但並無特別限制。構成酯鍵結之烴基，以碳數6〜20之烷 基或烯基爲佳，例如可舉出各種己基、辛基、癸基、十二 基、十四基、十六基、十八基、己烯基、辛烯基、癸烯基 、十二烯基、十四烯基、十六烯基、十八烯基等。 該多元醇之部份酯之具體例可舉出新戊二醇單月桂酸 酯、新戊二醇單肉宣蔻酸酯、新戊二醇單棕櫚酸酯、新戊 二醇單硬酯酸酯、新戊二醇單異硬酯酸酯、三羥乙基丙烷 單或雙月桂酸酯、三羥乙基丙烷單或雙肉萱蔻酸酯、三羥 乙基丙烷單或雙棕櫚酸酯、三羥乙基丙烷單或雙硬酯酸酯 、三羥乙基丙烷單或雙異硬酯酸酯、月桂酸單或雙甘油酯 、硬酯酸單或雙甘油酯、異硬酯酸單或雙甘油酯等’但未 -16 - 200831662 限定於這些種類。 該（D )成分之多元醇部份酯可以單獨一種而使用’ 亦可組合二種以上而使用。 該（D )成分潤滑性增加劑之硫化烯烴可舉出以下述 * 一般式（ΙΠ )所示之化合物。 R5_Sa_R6 . . · · ( m ) (式中R5係碳數3〜20之燏基，R6係碳數3〜20之烷基 或烯基，a係1〜8之整數）。 該化合物係碳數3〜2 0之烯烴或藉由使其二〜四量體 與硫、氯化硫等硫化劑反應而可得，該烯烴以丙烯、異丁 烯、二異丁烯等爲佳。 於本發明中，該（D )成分之硫化烯烴可單獨使用一 種，亦可組合二種以上而使用。 # 於該（D )成分之潤滑性增加劑中，烷醇胺可舉出例 如十八烷基一乙醇胺、癸基一乙醇胺、己基一丙醇胺、苯 甲基一乙醇胺、苯基一乙醇胺、甲苯基一丙醇胺、二油基 一乙醇胺 '二月桂基一丙醇胺、二辛基一乙醇胺、二己基 一乙醇胺、二丁基一丙醇胺、油基二乙醇胺、十八烷基二 丙醇胺、月桂基二乙醇胺、辛基二丙醇胺、丁基二乙醇胺 、己基二乙醇胺、苯基二乙醇胺、甲苯基二丙醇胺、二亞 甲基二乙醇胺、三乙醇胺、三丙醇胺等碳數4〜60之雙取 代胺及三取代胺。 -17- 200831662 該等烷醇胺可單獨使用一種，亦可組合二種以上而使 用。 於該（D )成分之潤滑性增加劑中，硫代胺基甲酸酯 化合物可舉出例如乙烯基雙二丁基二硫代胺基甲酸酯、乙 烯基雙二辛肌二硫代胺基甲酸酯、乙烯基雙三癸基二硫代 胺基甲酸酯等爲佳。該等硫代胺基甲酸酯化合物可單獨使 用一種，亦可組合二種以上而使用。 於本發明之液壓油組成物中，該（D )成分之潤滑性 增加劑可自多元醇部份酯、烷醇胺、硫化烯烴、及硫代胺 基·甲酸酯化合物中選用一種，亦可適宜地組合2種以上而 使用。該（D )成分之混合量，以組成物之全量爲基準， 選定爲0.005〜5質量％之範圍。未達0.005質量％時，難 以充分發揮其減低於油壓幫浦滑道部份之摩擦、減低於油 壓系統所設置之致動器等橡膠材料•金屬間摩擦、以及提 升耐磨耗性等效果。反之，超過5質量％時，淤泥的生成 會變多，離水性亦會惡化。該（D )成分之潤滑性增加劑 之混合量以〇.〇1〜5質量％爲佳，0.03〜3質量％更佳， 0.05〜2質量％最佳。 於本發明之液壓油組成物中，可因應需要加入潤滑性 改良劑之（E)成分，可自酸性磷酸酯之胺鹽及磷酸三酯 化合物中選用至少一種加以混合。藉此有可將前述之潤滑 性增加劑更加提高之情況。 前述之酸性磷酸酯之胺鹽係可使用以前述一般式（II-1 )所示之酸性磷酸酯之胺鹽。構成該胺鹽之胺化合物碳 -18- 200831662 數係4〜60，可使用單取代胺、雙取代胺及三取子 單取代胺可舉出例如丁基胺、戊基胺、己基 基胺、辛基胺、月桂基胺、硬酯基胺、油基胺、 等，雙取代胺之例可舉出二丁基胺、二戊基胺、 、二環己基胺、二辛基胺、二月桂基胺、二硬酯 油基胺、雙苯甲基胺等’三取代胺之例可舉出三 三戊基胺、三己基胺、三環己基胺、三辛基胺、 胺、三硬酯基胺、三油基胺、三苯甲基胺等。進 可舉出例如十八院基一乙醇胺、癸基~乙醇胺、 醇胺、苯甲基一乙醇胺、苯基一乙醇胺、甲苯基 、二油基一乙醇胺、二月桂基一丙醇胺、二辛基 、二己基一乙醇胺、二丁基一丙醇胺、油基二乙 Λ烷基二丙醇胺、月桂基二乙醇胺、辛基二丙醇 二乙醇胺、己基二乙醇胺、苯基二乙醇胺、甲苯 胺、二亞甲基二乙醇胺、三乙醇胺、三丙醇胺等 該等胺化合物可單獨使用一種，亦可組合二 使用。 前述之磷酸三酯化合物係以一般式（IV )所 物， W匕6] R7-0\ r8-o^p=o …αν) R9 - 〇/ 〔式中，R7〜R9與一般式（π )中之R2相同〕。 -19- ί胺。 胺、環己 苯甲基胺 二己基胺 基胺、雙 丁基胺、 三月桂基 而烷醇胺 己基一丙 一丙醇胺 一乙醇胺 醇胺、十 胺、丁基 基二丙醇 〇 種以上而 示之化合 200831662 可舉出例如磷酸三芳基酯、磷酸三烷基酯、磷酸三烷 基芳基酯、磷酸三芳基烷基酯、磷酸三烯基酯等，例如磷 酸三苯基酯、磷酸三甲酚基酯、磷酸苯甲基二苯基酯、磷 酸乙基二苯基酯、磷酸三丁基酯、磷酸乙基二丁基酯、磷 酸甲酚基二苯基酯、磷酸二甲酚基苯基酯、磷酸乙基苯基 二苯基酯、磷酸二（乙基苯基）苯基酯、磷酸丙基苯基二 苯基酯、磷酸二（丙基苯基）苯基酯、磷酸三乙基苯基酯 '磷酸丙基苯基酯、磷酸丁基苯基二苯基酯、磷酸二（丁 基苯基）苯基酯、磷酸三丁基苯基酯、磷酸三己基酯、磷 酸（2-乙基己基）酯、磷酸三癸基酯、磷酸三月桂基酯 、磷酸二肉豆宼基酯、磷酸三棕櫚基酯、磷酸三硬酯基酯 、磷酸三油基酯等。 於本發明中，可因應需要加入潤滑性改良劑之（E ) 成分，可自前述之酸性磷酸酯之胺鹽中選用1種，亦可組 合2種以上而使用。進而可組合1種以上之酸性磷酸酯之 胺鹽，與1種以上之磷酸三酯化合物而使用。該（E )成 分之混合量，以組成物之全量爲基準，選定爲0.005〜5 質量％之範圍爲佳，〇·〇1〜5質量％更佳，〇· 02〜2質量％ 最佳。 於本發明之液壓油中，可因應需要加入清潔分散劑。 前述之清潔分散劑’可使用無灰清潔分散劑及/或金 屬系清潔分散劑。 無灰清潔分散劑可舉出例如琥拍醯亞胺類、含硼琥拍 醯亞胺類、苯甲基胺類、含硼苯甲基胺類等。 -20- 200831662 金屬系清潔劑可舉出例如中性、鹽基性或過鹽基性金 屬磺酸鹽、金屬酚鹽、金屬水楊酸鹽、金屬硫酸鹽等。可 使用這些無灰清潔分散劑及金屬系清潔分散劑之1種，或 2種以上而使用。該清潔分散劑，一般以組成物之全量爲 基準，0.01〜1質量％左右。 _ 於本發明之液壓油組成物中，可於不損及本發明目的 之範圍內，根據期望而混合防止氧化劑、防繡劑、金屬不 Φ 活化性劑、降低流動點劑、消泡劑、抗乳化劑等。 防止氧化劑以使用酚系防止氧化劑及胺系防止氧化劑 爲佳。 並未特別限定該酚系防止氧化劑，可自過去使用爲潤 滑油之周知之酚系防止氧化劑中，適宜地選用適合者。該 酚系防止氧化劑可舉出例如2，6-二一第三一 4 一甲基酚； 2.6 —二一第三一 丁基一 4 —乙基酚；2，4,6 —三一第三—丁 基酚；2,6—二一第三一丁基一羥甲基酚；2,6—二一第三 # 一丁基酚；2，4 一二甲基—6—第三—丁基酚；2，6 —二—第 三—丁基一4一 （ N，N —二甲基胺甲基）酚；2,6 —二—第 三一胺基—4 —甲基酚；η-辛癸基3 — （4 —羥基—3，5 — 二一第三一丁基酚）丙酯等單環酚類、4,4’ 一甲烯基雙（ 2.6 —二一第三—丁基酚）；4,4’ 一異亞丙基雙（2,6 -二 一第三一 丁基酚）；2,2’ 一甲烯基雙（4 一甲基一 6—第三 —丁基酚）；4,4’一雙（2,6—二一第三一 丁基酚）；4,4, 一雙（2 —甲基一 6 —第三—丁基酚）；2,2,一甲烯基雙（4 一乙基一 6—第三一丁基酚）；4，4,一亞丁基雙（3—甲基 -21 - 200831662 —6—第三一丁基酚）；2,2，一硫代雙（4 一甲基一 6 一第三 一 丁基酚）；4,4, 一硫代雙（3 —甲基—6〜第三一 丁基酚 )等多環酚類等。該等物質中，自效果之觀點而言合適者 爲單環酚類。 並未特別限定該胺系防止氧化劑，可自過去使用爲潤 滑油之周知之胺系防止氧化劑中，適宜地選用適合者。該 胺系防止氧化劑可舉出例如二苯基胺系者，具體例係二苯 基胺及單辛基二苯基胺；單壬基二苯基胺；4,4, 一二丁基 一苯基胺；4,4’ 一二己基二苯基胺；4,4’一二辛基二苯基 胺；4,4’ 一二壬基二苯基胺；四丁基二苯基胺；四己基二 苯基胺；四辛基二苯基胺；四壬基二苯基胺等具碳數3〜 20之烷基之烷化二苯基胺等，及萘基胺系者，具體例係α 一萘基胺；苯基一 α -萘基胺、進而爲丁基苯基一 α —萘 基胺；己基苯基—α -萘基胺；辛基苯基一 α -萘基胺； 壬基苯基一 α 一萘基胺等具碳數3〜20之烷基取代苯基-α -萘基胺等。該等物質中，較萘基胺系，以二苯基胺系 自效果之觀點而言爲佳，特別合適者係具碳數3〜20之烷 基之烷化二苯基胺，亦即4,4’ —二（C3〜C2G烷基）二苯 基胺。 於本發明中，可使用1種之前述之酚系防止氧化劑， 亦可組合2種以上而使用。另外，可使用1種之前述之胺 系防止氧化劑，亦可組合2種以上而使用。進而可組合1 種以上之酚系防止氧化劑，與1種以上之胺系防止氧化劑 而使用。 -22- 200831662 於本發明中，該防止氧化劑之混合量，自其氧化安定 性及其他物性等觀點，以組成物之全量爲基準，一般以 0·05〜2.0質量％爲佳，〇·!〜1質量％更佳。 防繡劑可舉出金屬硫酸鹽、琥珀酸酯等。該等防繡劑 之混合量自其混合效果及其他物性等觀點，以組成物之全 ' 量爲基準，一般以0.01〜5質量％爲佳，〇·〇3〜1質量％ 更佳。 φ 金屬不活化性劑可舉出苯并三唑、噻二唑等。該等金 屬不活化性劑之混合量自其混合效果及其他物性等觀點， 以組成物之全量爲基準，一般以0.005〜1質量％爲佳， 0 · 0 0 7〜0 · 5質量％更佳。 降低流動點劑可使用重量平均分子量爲5萬〜1 5萬支 聚甲基丙烯酸酯等。自其混合效果及其他物性等觀點，降 低流動點劑之混合量以組成物之全量爲基準，一般以0J 〜5質量％爲佳，〇·2〜2質量％更佳。 Φ 消泡劑以高分子二氧化矽系消泡劑爲佳，藉由混合該 高分子二氧化矽系消泡劑而使其發揮具效果之消泡性。 前述之高分子二氧化矽系消泡劑，可舉出例如有機聚 矽氧烷，特別合適者係三全氟丙基甲基二氧化矽油等含氟 之有機聚矽氧烷。該高分子二氧化矽系消泡劑，自消泡效 果及平衡經濟性等觀點，以組成物之全量爲基準，以混合 其爲0.0001〜0.5質量％爲佳，0.0005〜0.3質量％更佳。 抗乳化劑可使用以往周知之物質，可舉出例如蓖麻子 油之硫酸酯鹽及石油磺酸鹽等陰離子性界面活性劑、四級 -23- 200831662 銨鹽及咪唑型等陽離子性界面活性劑、進而爲環氧乙烷、 環氧丙烷之縮合生成物，分子量爲1 5 00〜1 0,000左右者 ，具體而言有聚氧乙烯聚乙二醇及其二羧酸之酯、烷基苯 基甲醛重縮合物之環氧烷添加物等。 如前所述，本發明係特定之基油、（a )〜（D )成 分，進而將該等成分與（E)成分進行混合而構成之液壓 油組成物，爲含有特定之基油、（A)〜（D)成分，進 而該等成分與（E )成分之液壓油組成物。 本發明之液壓油組成物，係具良好的節能性、熱安定 性（耐淤泥性）、耐磨耗性、耐刮損性、離水性及減低滑 道部份之摩擦性。因此爲適用於射出成型機、加工機械、 建築機械、製鐵設備等油壓機器之液壓油，但亦顯示其做 爲產業用機器人、油壓電梯等油壓機器用之液壓油，具良 好的性能。 【實施方式】 實施例 將本發明藉由實施例更詳盡地說明，但本發明並未因 該等例子而有任何限定。 諸特性係遵循下示方法而獲得。 (1 )基油之性狀 •硫成分：係根據JIS K 254 1而進行測定。 •飽和成分：係根據ASTM D 2007而進行測定。 -24- 200831662 •於40°C之絕對黏度：係自根據JIS Κ 2283所測定 於40 °C動黏度與密度而算出。 •黏度指數：根據JIS K 2283而進行測定。 (2 )液壓油組成物之性能 (A)高壓輪葉幫浦試驗 輪葉幫浦係使用「TOKIMEC SQP2-12」而形成油壓 迴路，將油溫定於 60 °C，於回轉數：1 200rpm，壓力： 17.5 MPa之條件下進行運轉，測定於運轉階段中之消耗電 力（kW)及機械效率。 (B )熱安定性試驗 根據JIS K 25 40所規定之「潤滑油熱安定度方法」， 於150°C之空氣恆溫槽中進行7天之熱安定性試驗後，將 試驗後之試料油以過濾器進行過濾，測量試料油中之淤泥 (C )根據FZG齒輪試驗之抗黏著性 根據 ASTM D 5182-91，於 90°C，1 450rpm，15 分鐘 之條件下進行試驗以產生刮損荷重期來表示。 (D)離水性 根據JIS K 2 520，於溫度54°C下進行離水性試驗，測 定乳化層到達3 m L之時間「抗乳化度」（m i η )。 -25 - 200831662 (E )摩擦係數 使用鮑庭式往複動摩擦試驗機，以下述條件測定 係數JU 。 油溫：2 5 °cIn the above general formula (n-i), R1 represents a hydrogen atom or a hydrocarbon group of carbon 18 and R2 represents a hydrocarbon group having 1 to 18 carbon atoms. The carbon number I acid is a good example of the ene pentamine B), and the reaction amine is in the range of 150 ° C. The excess of the fatty acid can be separately mixed (c-1), the number is from 1 to 18, and the hydrocarbon group can be used. An alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an aryl group having 6 to 18 carbon atoms, and an aralkyl group having 7 to 18 carbon atoms are used. The alkyl group and the alkenyl group may be linear, branched or cyclic, and examples thereof include a methyl group, an ethyl group, a n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, and a second group. 'Ternyl butyl, various pentyl groups, various hexyl groups, various octyl groups, various fluorenyl groups, various twelve groups, various fourteen groups, various hexadecyl groups, various octadecyl groups, cyclopentyl groups, cyclohexyl groups, alkenes Propyl, propenyl, various butenyl, various hexenyl, various octenyl, various nonenyl, various dodecenyl, various tetradecenyl, various hexadecenyl, various octadecyl, Cyclopentenyl, cyclohexenyl, and the like. Examples of the aryl group having 6 to 18 carbon atoms include a phenyl group, a tolyl group, a dimethylene group, a naphthyl group and the like. Examples of the aralkyl group having 7 to 18 carbon atoms include a benzyl group, a phenethyl group, and a methylbenzene group. Base, methylphenethyl, naphthylmethyl and the like. The total carbon number of R1 and R2 is preferably from 3 to 36. Therefore, in order to make the total carbon number of R1 and R2 from 3 to 36, an appropriate group can be selected. The acidic phosphate compound of the general formula (I1-1) is an acidic phosphoric acid monoester or an acidic phosphodiester. Examples of the acidic phosphoric acid mono- and di-esters include mono (di)-n-propyl acid phosphate, mono (di)-n-butyl acid phosphate, mono (di)-2-ethylhexyl acid phosphate, and mono (di). Sulfhydric acid phosphate, mono(di)dodecyl acid phosphate, mono(di)tridecyl acid phosphate, mono(di)tetradecyl acid phosphate, mono(di)hexadecane Acidic phosphate, single (two) eight-yard acid-based acid salt, mono (di) oil-based acid phosphate. The (c-2) acidic phosphite compound of the above-mentioned (C) component is a compound represented by the general formula (II-2). [5] R3 — O' Λ /Ρ-ΟΗ "_(Π- 2) R4—. R3 in the general formula (ΙΙ-2) is the same as R1 in the above general formula (Π-1). R4 in the general formula (ΙΙ-2) is the same as R2 in the above general formula (Π-1) . The total carbon number for R3 and R4 is also the same as in the case of the acidic phosphate compound of the general formula (II-1). The acidic phosphite compound of the general formula (ΙΙ-2) may, for example, be mono(di)-2-phosphoethylhexyl hydrogenester, mono(di)phosphonium decyl hydroester or mono(di)phosphorus. T-dodecyl hydrogen ester (mono(di)phosphoryl dodecyl hydrogen ester), mono(di)phosphoryl octadecyl hydrogen ester (mono(di)phosphoryl octadecyl hydrogen ester), Mono(di)- 9-phosphorus octadecyl hydrogen ester (mono(di)phosphoryl oleyl hydrogen ester), mono(di)phosphoryl phenyl hydrogenate, and the like. In the present invention, the (C) component may be one of the above-mentioned (c-1) acidic phosphate compounds, or two or more of them may be used in combination. Further, one of the above (c-2) acidic phosphite compounds may be used, or two or more of them may be used in combination. Further, one or more (c-1) acidic phosphate compounds and one or more (c-2) acidic phosphorous acid ester compounds may be used in combination. The compounding amount of the component (C) is preferably in the range of 0.005 to 5% by mass, more preferably 0.01 to 3% by mass, more preferably 0.02 to 2% by mass based on the total amount of the composition. The relationship with the above-mentioned (Β) component is preferably such that the mass ratio of (B) / (C) is from 0.1 to 4.0, preferably from -15 to 200831662, and more preferably from 0.5 to 3.0. When the mass ratio of (Β) / (C) is 〇·1 to 4·0, the effect of preventing abnormal vibration (slippage) between the hydraulic cylinder and the rubber (resin) is obtained. In the hydraulic oil composition of the present invention, the lubricity enhancer of the component (D) may be at least one selected from the group consisting of a polyol partial ester, an alkanolamine, a sulfurized olefin, and a thiourethane compound. The polyol ester of the component (D) is not particularly limited to a polyol as a raw material, and an aliphatic polyhydric alcohol is preferable, and examples thereof include ethylene glycol, diethylene glycol, triethylene glycol, and propylene. Diols such as ethylene glycol, 1,3-propanediol, dibutyl ether glycol, and neopentyl glycol, triols such as glycerin, trishydroxyethylethane, and trishydroxyethylpropane, diglycerin, triglycerin, and A tetrahydric or higher polyhydric alcohol such as pentaerythritol, diisopentaerythritol, mannitol or sorbitol. The number of ester bonds of the partial ester is preferably at least one hydroxyl group remaining, but is not particularly limited. The hydrocarbon group constituting the ester bond is preferably an alkyl group or an alkenyl group having 6 to 20 carbon atoms, and examples thereof include various hexyl groups, octyl groups, decyl groups, dodecyl groups, tetradecyl groups, hexadecyl groups, and octadecyl groups. , hexenyl, octenyl, nonenyl, dodecenyl, tetradecenyl, hexadecenyl, octadecenyl, and the like. Specific examples of the partial ester of the polyhydric alcohol include neopentyl glycol monolaurate, neopentyl glycol monocarboxate, neopentyl glycol monopalmitate, and neopentyl glycol monostearate. Ester, neopentyl glycol monoisostearate, trishydroxyethylpropane mono or dilaurate, trishydroxyethylpropane mono or dibenzoate, trishydroxyethylpropane mono or dipalmitate , triethylolpropane mono or di-stearate, trishydroxyethylpropane mono or diisostearate, lauric acid mono or diglyceride, stearic acid mono or diglyceride, isostearyl acid mono Or diglycerides, etc. 'but not -16 - 200831662 are limited to these species. The polyol partial ester of the component (D) may be used singly or in combination of two or more. The sulfurized olefin of the (D) component lubricity increasing agent may, for example, be a compound represented by the following general formula (ΙΠ). R5_Sa_R6 . . . ( m ) (wherein R 5 is a fluorenyl group having 3 to 20 carbon atoms, R 6 is an alkyl group or an alkenyl group having 3 to 20 carbon atoms, and a is an integer of 1 to 8). The compound is obtained by reacting a diol having 3 to 20 carbon atoms or a vulcanizing agent such as sulfur or sulfur chloride, and the olefin is preferably propylene, isobutylene or diisobutylene. In the present invention, the sulfurized olefin of the component (D) may be used singly or in combination of two or more. In the lubricity increasing agent of the component (D), the alkanolamine may, for example, be octadecyl monoethanolamine, decyl monoethanolamine, hexyl monopropanolamine, benzylmethylethanolamine or phenyl monoethanolamine. Tolyl-propanolamine, dioleyl monoethanolamine 'dilauryl monopropanolamine, dioctyl monoethanolamine, dihexyl monoethanolamine, dibutyl monopropanolamine, oleyl diethanolamine, octadecyl Propylamine, lauryl diethanolamine, octyldipropanolamine, butyldiethanolamine, hexyldiethanolamine, phenyldiethanolamine, tolyldipropanolamine, dimethylenediethanolamine, triethanolamine, tripropanol A disubstituted amine having a carbon number of 4 to 60 such as an amine and a trisubstituted amine. -17- 200831662 These alkanolamines may be used alone or in combination of two or more. In the lubricity increasing agent of the component (D), the thiourethane compound may, for example, be vinyl bis-dibutyldithiocarbamate or vinyl bis-dioctyldithioamine. A carbamic acid ester, a vinyl bis tridecyl dithiocarbamate or the like is preferred. These thiourethane compounds may be used singly or in combination of two or more. In the hydraulic oil composition of the present invention, the lubricity increasing agent of the component (D) may be selected from the group consisting of a polyol partial ester, an alkanolamine, a sulfurized olefin, and a thioamino group-formate compound, Two or more types can be combined and used suitably. The compounding amount of the component (D) is selected in the range of 0.005 to 5% by mass based on the total amount of the composition. When it is less than 0.005 mass%, it is difficult to fully exert the friction which is lower than the friction of the hydraulic pump slide, the rubber material such as the actuator provided by the hydraulic system, the metal friction, and the wear resistance. effect. On the other hand, when it exceeds 5% by mass, the formation of sludge will increase, and the water repellency will also deteriorate. The amount of the lubricity increasing agent of the component (D) is preferably from 1 to 5 mass%, more preferably from 0.03 to 3 mass%, most preferably from 0.05 to 2 mass%. In the hydraulic oil composition of the present invention, the component (E) of the lubricity improver may be added as needed, and at least one selected from the group consisting of an amine phosphate salt and a phosphoric acid triester compound may be used. Thereby, the above-mentioned lubricity increasing agent can be further improved. As the amine salt of the above acid phosphate, an amine salt of the acidic phosphate represented by the above general formula (II-1) can be used. The amine compound carbon-18-200831662 constituting the amine salt is 4 to 60, and a monosubstituted amine, a disubstituted amine, and a trisubstituted monosubstituted amine can be used, for example, butylamine, pentylamine, hexylamine, Examples of the octylamine, laurylamine, stearylamine, oleylamine, and the like, and the disubstituted amines include dibutylamine, diamylamine, dicyclohexylamine, dioctylamine, and dilaurin. Examples of the 'trisubstituted amine such as a base amine, a distearyl oleylamine, a bisbenzylamine, etc. include tritrimylamine, trihexylamine, tricyclohexylamine, trioctylamine, amine, tristearate. Alkylamine, trioleylamine, tritylamine, and the like. Further, for example, 18-yard monoethanolamine, mercapto-ethanolamine, alcoholamine, benzylmethylethanolamine, phenyl monoethanolamine, tolyl, dioleyl monoethanolamine, dilauryl-propanolamine, dioctyl Base, dihexyl monoethanolamine, dibutyl monopropanolamine, oleyl diethylethanyl dipropanolamine, lauryl diethanolamine, octyldipropanol diethanolamine, hexyldiethanolamine, phenyldiethanolamine, A These amine compounds, such as aniline, dimethylene diethanolamine, triethanolamine, and tripropanolamine, may be used alone or in combination of two. The above-mentioned phosphate triester compound is of the general formula (IV), W匕6] R7-0\r8-o^p=o ...αν) R9 - 〇/ [wherein R7~R9 and the general formula (π) ) R2 is the same]. -19- ί amine. Amine, cyclohexylbenzylamine dihexylamine amine, dibutylamine, trilauryl alkanolamine hexylpropanolamine monoethanolamine alcoholamine, decaamine, butyldipropanol Further, for example, the compound 200831662 includes, for example, a triaryl phosphate, a trialkyl phosphate, a trialkyl aryl phosphate, a triarylalkyl phosphate, a trienyl phosphate, etc., such as triphenyl phosphate, phosphoric acid. Tricresol ester, benzyl diphenyl phosphate, ethyl diphenyl phosphate, tributyl phosphate, ethyl dibutyl phosphate, cresyl diphenyl phosphate, xylenol phosphate Phenyl ester, ethyl phenyl diphenyl phosphate, di(ethylphenyl) phenyl phosphate, propyl phenyl diphenyl phosphate, di(propylphenyl) phenyl phosphate, phosphoric acid Ethyl phenyl ester 'phosphopropyl phenyl ester, butyl phenyl diphenyl phosphate, di(butylphenyl) phenyl phosphate, tributyl phenyl phosphate, trihexyl phosphate, phosphoric acid ( 2-ethylhexyl) ester, tridecyl phosphate, trilauryl phosphate, dimyristyl phosphate, tri-brown phosphate Ester, phosphate ester tristearate, oleyl phosphate, tris ester. In the present invention, the (E) component of the lubricity improver may be added as needed, and one type of the above-mentioned acid phosphate ester amine salt may be used, or two or more types may be used in combination. Further, an amine salt of one or more kinds of acidic phosphates may be used in combination with one or more kinds of phosphate triester compounds. The blending amount of the component (E) is preferably in the range of 0.005 to 5 mass% based on the total amount of the composition, and more preferably 〇·〇1 to 5 mass%, and most preferably 〇· 02 to 2 mass%. In the hydraulic oil of the present invention, a cleaning dispersant may be added as needed. The aforementioned cleaning dispersant' may use an ashless cleaning dispersant and/or a metal cleaning dispersant. Examples of the ashless cleaning dispersant include, for example, a succinimide, a boron-containing sulfonium imine, a benzylamine, a boron-containing benzylamine, and the like. -20- 200831662 The metal-based detergent may, for example, be a neutral, a salt-based or a perbasic metal sulfonate, a metal phenate, a metal salicylate or a metal sulfate. One type or two or more types of the ash-free cleaning dispersing agent and the metal-based cleaning and dispersing agent can be used. The cleaning dispersant is generally used in an amount of from 0.01 to 1% by mass based on the total amount of the composition. _ In the hydraulic oil composition of the present invention, it is possible to mix and prevent an oxidizing agent, an anti-embroidering agent, a metal non-Φ activator, a flow point reducing agent, an antifoaming agent, and the like, as desired within a range not impairing the object of the present invention. Anti-emulsifier and the like. It is preferred to prevent the oxidizing agent from using a phenol-based antioxidant and an amine-based antioxidant. The phenol-based oxidizing agent is not particularly limited, and it can be suitably selected from the conventional phenol-based oxidizing agent which is known as a lubricating oil. The phenol-based oxidizing agent may, for example, be 2,6-di-n-tert-tetramethyl- phenol; 2.6-di-tertiary-tert-butyl-4-ethylphenol; 2,4,6-three-third - butyl phenol; 2,6-di-tert-tert-butyl-hydroxymethyl phenol; 2,6-two-third third #-butyl phenol; 2,4-dimethyl- 6-third-butyl Phenol; 2,6-di-tertiary-butyl-4-iso(N,N-dimethylaminomethyl)phenol; 2,6-di-tertiary-amino-4-methylphenol; - Octyl 3 - (4 - hydroxy - 3, 5 - di-n-tert-butyl phenol) propyl ester and other monocyclic phenols, 4, 4 ' monoalkenyl bis ( 2.6 - 2 - 3 - butyl phenol 4,4'-isopropylidene bis(2,6-di-p-tert-butylphenol); 2,2'-monoalkenyl bis(4-methyl-6-t-butylphenol) ); 4,4'-double (2,6-di-tertiary tert-butylphenol); 4,4, one pair (2-methyl- 6-t-butylphenol); 2,2, one Methyl alkenyl bis(4-ethyl-6-t-butyl phenol); 4,4, monobutylene bis(3-methyl-21 - 200831662-6-tert-butyl phenol); 2, a thio-double (4 a polycyclic phenol such as methyl-6-tert-butylphenol); 4,4, monothiobis(3-methyl-6~t-butylphenol). Among these, those which are suitable from the viewpoint of the effect are monocyclic phenols. The amine-based antioxidant is not particularly limited, and it can be suitably selected from among the known amine-based antioxidants which have been used as lubricants in the past. The amine-based oxidizing agent may, for example, be a diphenylamine-based one, and specific examples are diphenylamine and monooctyldiphenylamine; monodecyldiphenylamine; 4,4, di-dibutylbenzene Amine; 4,4'-dihexyldiphenylamine; 4,4'-dioctyldiphenylamine; 4,4'-didecyldiphenylamine; tetrabutyldiphenylamine; a hexyldiphenylamine; a tetraalkyldiphenylamine; a tetraalkyldiphenylamine; an alkylated diphenylamine having an alkyl group having 3 to 20 carbon atoms; and a naphthylamine group,一-naphthylamine; phenyl-α-naphthylamine, further butylphenyl-α-naphthylamine; hexylphenyl-α-naphthylamine; octylphenyl-α-naphthylamine; An alkyl group having a carbon number of 3 to 20, such as a phenyl-α-naphthylamine, is substituted with a phenyl-α-naphthylamine or the like. Among these, it is preferable that the naphthylamine type is a diphenylamine type from the viewpoint of the effect, and particularly suitable is an alkylated diphenylamine having an alkyl group having 3 to 20 carbon atoms, that is, 4 4'-di(C3~C2G alkyl)diphenylamine. In the present invention, one type of the above-mentioned phenol-based antioxidant may be used, or two or more types may be used in combination. In addition, one type of the above-mentioned amine-based antioxidant may be used, and two or more types may be used in combination. Further, one or more phenol-based antioxidants may be combined and used as one or more amine-based antioxidants. -22- 200831662 In the present invention, the amount of the oxidizing agent to be prevented is generally from 0.05 to 2.0% by mass based on the total amount of the composition, from the viewpoints of oxidation stability and other physical properties, and is preferably !·! ~1% by mass is better. The anti-emulsion agent may, for example, be a metal sulfate or a succinate. The blending amount of the anti-embroidering agent is preferably 0.01 to 5% by mass, more preferably 3 to 1% by mass based on the total amount of the composition, from the viewpoint of the mixing effect and other physical properties. Examples of the φ metal inactivating agent include benzotriazole and thiadiazole. The mixing amount of the metal non-activator is preferably 0.005 to 1% by mass, based on the total amount of the composition, from the viewpoint of the mixing effect and other physical properties, and is preferably 0. 0 0 7 to 0. 5 mass%. good. The flow point reducing agent can be used in a weight average molecular weight of 50,000 to 150,000 polymethacrylate or the like. From the viewpoints of the mixing effect and other physical properties, the mixing amount of the flow point agent is preferably from 0 J to 5 mass%, more preferably from 2 to 2 mass%, based on the total amount of the composition. The Φ defoaming agent is preferably a high-molecular cerium oxide-based antifoaming agent, and the polymer cerium oxide-based antifoaming agent is mixed to exert an effect of defoaming property. The polymer ceria-based antifoaming agent may, for example, be an organopolyoxane, and particularly preferably a fluorine-containing organic polyoxane such as triperfluoropropylmethyl cerium oxide. The polymer ceria-based antifoaming agent is preferably 0.0001 to 0.5% by mass, more preferably 0.0005 to 0.3% by mass, based on the total amount of the composition, from the viewpoint of the defoaming effect and the balance economy. As the anti-emulsifier, a conventionally known one can be used, and examples thereof include an anionic surfactant such as a sulfate salt of castor oil and a petroleum sulfonate, and a cationic surfactant such as a quaternary-23-200831662 ammonium salt and an imidazole type. Further, it is a condensation product of ethylene oxide and propylene oxide, and has a molecular weight of about 1 500 to 1,000,000, specifically polyoxyethylene polyethylene glycol and an ester of a dicarboxylic acid thereof, an alkylphenyl group. An alkylene oxide additive such as a formaldehyde heavy condensate. As described above, the present invention is a specific base oil, (a) to (D) components, and further a hydraulic oil composition comprising the components and the component (E), and contains a specific base oil, A) to (D) components, and further to the hydraulic oil compositions of the components and (E) components. The hydraulic oil composition of the present invention has good energy saving, thermal stability (sludge resistance), abrasion resistance, scratch resistance, water repellency and frictional reduction of the sliding portion. Therefore, it is a hydraulic oil suitable for use in hydraulic equipment such as injection molding machines, processing machines, construction machinery, and iron making equipment. However, it is also used as a hydraulic oil for hydraulic equipment such as industrial robots and hydraulic elevators. performance. [Embodiment] The present invention is explained in more detail by way of examples, but the present invention is not limited by the examples. The characteristics are obtained by following the methods shown below. (1) Properties of base oil • Sulfur component: It was measured in accordance with JIS K 254 1. • Saturated ingredients: measured according to ASTM D 2007. -24- 200831662 • Absolute viscosity at 40 °C: Calculated from the dynamic viscosity and density measured at 40 °C according to JIS Κ 2283. • Viscosity index: Measured in accordance with JIS K 2283. (2) Performance of hydraulic oil composition (A) High-pressure vane pump test The vane pump system uses "TOKIMEC SQP2-12" to form a hydraulic circuit, the oil temperature is set at 60 °C, and the number of revolutions is: 1 200 rpm, pressure: The operation was carried out under conditions of 17.5 MPa, and the power consumption (kW) and mechanical efficiency in the operation phase were measured. (B) Thermal stability test According to the "Lubricating oil thermal stability method" specified in JIS K 25 40, after 7 days of thermal stability test in an air bath at 150 ° C, the test oil after the test is The filter is filtered to measure the sludge in the sample oil (C) according to the anti-adhesion of the FZG gear test. According to ASTM D 5182-91, the test is carried out at 90 ° C, 1 450 rpm, 15 minutes to produce a scratch load period. To represent. (D) Water repellency According to JIS K 2 520, a water detachment test was carried out at a temperature of 54 ° C, and the "emulsification degree" (m i η ) at which the emulsified layer reached 3 m L was measured. -25 - 200831662 (E) Coefficient of friction The coefficient JU was measured under the following conditions using a Bowing type reciprocating friction tester. Oil temperature: 2 5 °c
荷重：19.6N 滑道距離：40mm 滑道速度·· 6 0 m m / m i η 滑道往返數：5次 摩擦材料： 上方爲橡膠（U-SOi，nok公司製 下方爲鑛銘鋼板（5〇*i〇〇*imm， 片（股份有限）公司製）。 使用於調製液壓油組成物之各成分種類如下所述 (1 )基油—1 :屬於API分類Group ΙΠ之石鱲系 處理礦物油，硫成分0.01質量％以下，飽和成分99 %，黏度指數121，於40 °C之絕對黏度爲29.21 mPa · (2 )基油一 2 :氫化處理石蠟系礦物油，硫成分 質量％以下，飽和成分98質量％，黏度指數1 1 8，J °C之絕對黏度爲34.96mPa· s。 (3) 黏度指數增加劑：重量平均分子量37000 甲基丙烯酸酯。 (4) 醯胺化合物：異硬酯酸與四乙Μ基五胺之 物。 (5 )酸性磷酸酯一 1 :油基酸性磷酸酯。 摩擦 試驗 〇 氫化 質量 S ° 0.01 令40 之聚 縮合 -26- 200831662 (6)酸性磷酸酯一2:二（2—乙基己基）磷酸酯。 (7 )酸性亞磷酸酯一 1 :油基氫磷酸酯。 (8 )烷醇胺：N -烷基二乙醇胺。 (9 )脂肪酸甘油酯：油酸甘油酯（單體爲60質量％ ’，雙體爲20質量％，三體爲20質量％)。 ( 1 〇 )硫化烯烴：硫化丁烯。 (1 1 )硫代胺基甲酸酯：甲烯基雙（二丁基二硫代胺 Φ 基甲酸酯） (12) 酸性磷酸酯胺鹽：單（二）一甲基酸性磷酸酯 十二基胺鹽。 (13) 磷酸三酯：磷酸三甲苯酯。 (14) 防止氧化劑：2,6—二一第三一丁基—4_甲基 酚。 (15) 防繡劑：烯基琥珀酸多元醇酯。 (1 6 )金屬不活化性劑：苯幷三哩系不活化性劑。 φ ( 1 7 )抗乳化劑··聚氧乙烯聚氧丙烯二醇。 (1 8 )消泡劑：聚甲基丙烯酸酯系消泡劑。 實施例1〜4及比較例1 調製於表1所示組成之各液壓油組成物，分別針對其 性能進行評價。結果示於表1。 比較例1係使用黏度指數1 〇 8之zn系市售油（液壓 油）。 -27· 200831662 表 混合組成 (質量%) 性能評價 實施例 比較例 1 2 3 4 1 基油-1 殘餘 份量 殘餘 份量 殘餘 份量 — Zn 系 市 售 油 基油-2 — — — 殘餘 份量 黏度指數提升劑 5.00 5.00 5.00 5.00 醯胺化合物 0.05 0.08 0.05 0.10 酸性 (亞） 磷酸酯 酸性磷酸酯·1 0.05 0.05 — — 酸性磷酸酯-2 — — — 0.20 酸性亞磷酸酯_1 — — 0.05 — 潤滑性 提升劑 烷醇胺 0.05 — — — 脂肪酸甘油酯 — — — 0.05 硫化烯烴 0.05 0.05 0.05 — 硫代胺基甲酸酯 — — — 0.20 潤滑性 改良劑 酸性磷酸酯脂胺鹽 0.02 0.02 0.02 — 磷酸三酯 0.40 0.40 0.40 — 其他添 加劑 防止氧化劑 0.45 0.45 0.45 0.45 防繡劑 0.05 0.05 0.05 0.05 金屬不活化性劑 0.01 0.01 0.01 0.02 抗乳化劑 0.01 0.01 0.01 0.10 消泡劑 0.10 0.10 0.10 0.10 絕對黏 度(mPa • S) 40°C 35,4 35.6 35.6 36.9 39.1 60°C 17.5 17.5 17.5 18.1 17.5 黏度 指數 — 157 157 157 160 108 筒壓輪 葉幫浦 試驗 消耗電力(kW) 18.6 18.7 18.8 18.8 19.5 機械效率（％) 92.6 92.5 92.5 92.2 91.4 熱安 定性 淤泥析出量 (mg/100mL) 37 31 20 15 210 根據FZG齒輪試驗之抗黏著性 〔產生刮損荷重期〕 12 12 12 12 12 離水性( mk) [抗乳化度） 20 15 15 20 20 根據鮑庭試驗 摩擦係數μ 0.121 0.136 0.138 0.117 0.253 自表1可得知以下結果。 於高壓輪葉幫浦試驗之結果，於實施例1〜4中均顯 -28- 200831662 示優異的消費電力及機械效率。FZG結果，於實施例1〜4 中均滿足ISO規格10期以上。熱安定性之結果，於實施 例1〜4中淤泥之析出量與比較例1之Zn系市售油相比相 當地少。離水性試驗之結果，於實施例1〜4確認可維持 • 良好的離水性。鮑庭試驗之結果，相對於橡膠材料，實施 '例1〜4均顯示其可減低摩擦係數。 本發明之液壓油組成物，係具良好的節能性、熱安定 • 性（耐淤泥性）、耐磨耗性、耐黏著性（耐刮損性）、離 水f生及減彳氐、滑道nlM分之摩擦丨生等，可適用於油壓機械領域 、加工機械領域、產業機械領域等。Load: 19.6N Slide distance: 40mm Slide speed · · 6 0 mm / mi η Number of slides: 5 times Friction material: Rubber on the top (U-SOi, under the Nok company for the mine plate (5〇* I〇〇*imm, film (limited by the company)). The types of components used in the preparation of the hydraulic oil composition are as follows: (1) Base oil-1: It belongs to the API classification Group 鱲, the sarcophagus treated mineral oil, The sulfur content is 0.01% by mass or less, the saturated component is 99%, the viscosity index is 121, and the absolute viscosity at 40 °C is 29.21 mPa. (2) Base oil-2: Hydrogenated paraffinic mineral oil, sulfur component mass% or less, saturated component 98% by mass, viscosity index 1 18, absolute viscosity at J °C is 34.96 mPa·s. (3) Viscosity index increasing agent: weight average molecular weight 37000 methacrylate. (4) Indoleamine compound: isostearyl acid (4) Acidic phosphate ester-1: Oil-based acid phosphate. Friction test 〇 Hydrogenation quality S ° 0.01 40 Condensation of polycondensation -26- 200831662 (6) Acid phosphate ester 2 : Di(2-ethylhexyl) phosphate. (7) Acidic phosphite-1: oil Hydrogen phosphate. (8) Alkanolamine: N-alkyldiethanolamine. (9) Fatty acid glyceride: glyceryl oleate (60% by mass of monomer, 20% by mass of dimer, 20 mass of tris) %). (1 〇) sulfurized olefin: sulfurized butene. (1 1) thiocarbamate: methylalkenyl bis(dibutyldithiolamine phthalate) (12) acid phosphate Amine salt: mono (di)-methyl acid phosphate t-dodecylamine salt. (13) Phosphate triester: tricresyl phosphate. (14) Antioxidant: 2,6-two-first-tert-butyl-4 _methylphenol. (15) Anti-embroidering agent: alkenyl succinic acid polyol ester (1 6 ) metal non-activator: benzoquinone triterpenoid inactivator. φ (17) anti-emulsifier·· Polyoxyethylene polyoxypropylene diol. (18) Antifoaming agent: polymethacrylate-based antifoaming agent. Examples 1 to 4 and Comparative Example 1 Each hydraulic oil composition prepared in the composition shown in Table 1 was prepared. The results were evaluated for the results. The results are shown in Table 1. Comparative Example 1 was a zn-based commercial oil (hydraulic oil) having a viscosity index of 1 〇 8. -27· 200831662 Table mixing composition (% by mass) Performance evaluation implementation Comparative Example 1 2 3 4 1 Base Oil-1 Residual Parts Residual Parts Residual Parts - Zn Series Commercial Oil Base Oil-2 — — — Residual Partition Viscosity Index Lifting Agent 5.00 5.00 5.00 5.00 Indole Compound 0.05 0.08 0.05 0.10 Acidic (Asian Phosphate Acid Phosphate ·1 0.05 0.05 — Acid Phosphate-2 — — — 0.20 Acid Phosphite _1 — — 0.05 — Lubricity Enhancer Alkanolamine 0.05 — — — Fatty Acid Glycer — — — 0.05 Vulcanization Olefins 0.05 0.05 0.05 — Thiocarbamate — — 0.20 Lubricity improver Acid phosphate ester amine salt 0.02 0.02 0.02 — Phosphate triester 0.40 0.40 0.40 — Other additives prevent oxidant 0.45 0.45 0.45 0.45 Anti-embroidering agent 0.05 0.05 0.05 0.05 Metal inactive agent 0.01 0.01 0.01 0.02 Anti-emulsifier 0.01 0.01 0.01 0.10 Defoamer 0.10 0.10 0.10 0.10 Absolute viscosity (mPa • S) 40°C 35,4 35.6 35.6 36.9 39.1 60°C 17.5 17.5 17.5 18.1 17.5 Viscosity Index - 157 157 157 160 108 Power consumption of the barrel pressure wheel test (kW) 18.6 18.7 18.8 18.8 19.5 Mechanical efficiency (%) 92.6 92.5 92.5 92.2 91.4 Thermal stability sludge deposition (mg/100mL) 37 31 20 15 210 Anti-adhesion according to FZG gear test [scratch load generation period] 12 12 12 12 12 Water resistance (mk [Demulation resistance) 20 15 15 20 20 According to the Baud test friction coefficient μ 0.121 0.136 0.138 0.117 0.253 The following results can be seen from Table 1. As a result of the high pressure vane pump test, it was shown in Examples 1 to 4 that -28-200831662 showed excellent power consumption and mechanical efficiency. The FZG results satisfied the ISO specifications of 10 or more in Examples 1 to 4. As a result of the thermal stability, the amount of sludge deposited in Examples 1 to 4 was less than that of the Zn-based commercial oil of Comparative Example 1. The results of the water repellency test were confirmed in Examples 1 to 4 to maintain good water repellency. As a result of the Bautin test, the implementation of 'Examples 1 to 4' shows that the coefficient of friction can be reduced relative to the rubber material. The hydraulic oil composition of the invention has good energy saving, heat stability (sludge resistance), abrasion resistance, adhesion resistance (scratch resistance), water loss and reduction, and slide nlM can be applied to the field of hydraulic machinery, processing machinery, industrial machinery, etc.
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