Grease composition
一种润滑脂组合物、胺化合物的技术，应用在润滑组合物、石油工业、基料等方向，能够解决降低效果、不能充分发挥摩擦等问题，达到低摩擦系数、耐磨损性优异的效果
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[0277] Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited at all by these examples. In addition, the measurement methods of various physical property values are as follows.
[0278] (1) 40°C Kinematic Viscosity, 100°C Kinematic Viscosity, Viscosity Index
[0279] Measurement and calculation are performed in accordance with JIS K2283:2003.
[0280] (2) Mixed consistency
[0281] According to JIS K2220 7:2013, it measures at 25 degreeC.
[0282] (3) Dropping point
[0283] Measurement was performed in accordance with JIS K2220 8:2013.
[0284] (4) Particle size distribution of urea thickener
[0285] Vacuum defoam the urea grease obtained in Production Example 1 below and fill it into a 1mL syringe, extrude 0.10 to 0.15mL of urea grease from the syringe, and place the extruded urea grease in the paste tank for fixing The surface of the plate-shaped groove of the fixture.
[0286] Then, another plate-shaped groove was fu...
manufacture example 1
[0290] (Synthesis of Grease Base)
[0291] As a base oil, polyalphaolefin (PAO) heated to 70°C (40°C kinematic viscosity: 30mm 2 / s, 100°C kinematic viscosity: 7.8mm 2 / s, viscosity index: 137) 45.0 parts by mass, add 3.9 parts by mass of diphenylmethane-4,4'-diisocyanate (MDI) to prepare solution α.
[0292] In addition, in separately prepared polyalphaolefin (PAO) heated to 70°C (40°C kinematic viscosity: 30mm 2 / s, 100°C kinematic viscosity: 7.8mm 2 / s, viscosity index: 137) to 45.0 parts by mass, add 4.9 parts by mass of stearylamine and 1.2 parts by mass of cyclohexylamine to prepare solution β.
[0293] It should be noted that stearylamine / cyclohexylamine=60 / 40 (molar ratio).
[0294] And, use figure 1In the shown grease manufacturing apparatus 1, the solution α heated to 60-80°C is fed from the solution introduction pipe 4A at a flow rate of 100-200 L / h, and the solution β heated to 60-80°C is fed at a flow rate of 100-200 L / h. The flow rate of α is simultaneously...
Embodiment 1～11、 comparative example 1
[0301] While stirring the grease base obtained in Production Example 1 at 120°C, add the additives belonging to the above-mentioned components (C1) to (C3) in the compounding amounts shown in Table 1, stir for 0.5 hours, let it cool naturally, and cool to 25°C, grease compositions were prepared separately.
[0302] Various additives used in the preparation of the grease composition are as follows.
[0303] ・Component (C1): Oleoyl sarcosine (N-methyl-N-(1-oxo-9-octadecyl)glycine), R in the aforementioned general formula (c-1) is the number of carbon atoms 17 Alkyl (heptadecyl) compounds.
[0304] ・Component (C2): Oleylamine (1-amino-9-octadecene), R in the aforementioned general formula (c2-i) 11 It is a compound of alkenyl (9-octadecenyl) having 18 carbon atoms.
[0305] ・Ingredient (C3): Fatty amide.
[0306] The prepared grease composition was subjected to the following SRV test to measure the initial coefficient of friction and the average coefficient of friction. Thes...
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