CN105199813A - Low-noise lubricating grease and preparation method thereof - Google Patents
Low-noise lubricating grease and preparation method thereof Download PDFInfo
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- CN105199813A CN105199813A CN201510609518.XA CN201510609518A CN105199813A CN 105199813 A CN105199813 A CN 105199813A CN 201510609518 A CN201510609518 A CN 201510609518A CN 105199813 A CN105199813 A CN 105199813A
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Abstract
The invention relates to the technical field of lubricating grease, in particular to low-noise lubricating grease suitable for micromotors and a preparation method of the low-noise lubricating grease. The method comprises the steps that base oil with different viscosities and types is adopted for blending, structure modifier is added, the lubricating grease forms a layer of better oil film on the contact surface of a workpiece, and the noise reduction effect is effectively achieved. Meanwhile, the lubricating grease is prepared by reacting compound base oil with compound thickening agents, and therefore the service life of the lubricating grease is effectively prolonged. According tot he lubricating grease prepared through the method, the technology is simple, and the production cost is low. When the lubricating grease is used in the micromotors, the surface of the workpiece can form a layer of effective protective oil film, the lubricating grease is not prone to runoff when the micromotors run at a high speed, the high-temperature resistance is good, and good effects of lubricating, noise reduction and rust prevention are achieved.
Description
Technical field
The present invention relates to technical field of lubricating grease, particularly relate to a kind of low-noise lubricating grease being applicable to micromotor and preparation method thereof.
Background technology
Lubricating grease (lubricatinggrease, grease) is that a kind of grease paste of stiff is semi-solid, for the friction portion of machinery, plays lubrication and sealing function, also for metallic surface, rises and fills space and rust inhibition.The principle of work of lubricating grease is that oil remains on the position of needs lubrication by viscosifying agent, and when having load, oil discharges by viscosifying agent, thus plays lubrication.Lubricating grease forms primarily of mineral oil (or ucon oil) and viscosifying agent modulation.Lubricating grease can be divided into soap grease and non-soap grease two class according to viscosifying agent.The conventional viscosifying agent of soap grease has the metallic soaps such as lithium, sodium, potassium, calcium, aluminium, zinc, barium, lead, manganese.In prior art, lithium soap grease mainly adopts metal lithium soap and synthetic base oil to react at 90-100 DEG C, reaction mixture is incubated at 130-160 DEG C, then temperature refining at 180-220 DEG C, then in mixture, add the additives such as extreme pressure anti-wear additives, oxidation inhibitor, rust-preventive agent and mix, grinding to form fat.Reaction formula is R
1cOOH+LiOH → R
1cOOLi+H
2o, wherein R
1for C
6-C
24alkyl, preferred C
8-C
20aryl.But because when micromotor operates, rotating speed is higher, cause temperature rising, noise comparatively large, existing commercially available low-noise lubricating grease easily runs off when comparatively high temps, well can not reduce noise, and work-ing life is shorter; In addition, existing low-noise lubricating grease production cost is high, and commercially available price is all general higher.
Summary of the invention
The present invention is directed to the in use easily loss of the existing low-noise lubricating grease for micromotor, noise reduction is poor, the problem that life-span is short and production cost is high, there is provided a kind of and not easily run off, excellent noise reduction effect and life-span are long, production cost is lower low-noise lubricating grease, and the preparation method of this kind of low-noise lubricating grease.
For achieving the above object, the present invention by the following technical solutions.
A kind of low-noise lubricating grease, be made up: the base oil of 65-90%, the viscosifying agent of 5-20%, the alkali of 5-10%, the additive of 0-5%, and each component sum is 100% of each component of following mass percent.Preferably, the mass percent of described additive is 0.5-5%.
Preferably, described additive comprises at least one in rust-preventive agent, antioxidant and structure activator.
Preferably, described structure activator is at least one in polymethylmethacrylate, polyisobutene, ethylene propylene copolymer, natural rubber, petroleum pitch and rosin.
Preferably, described rust-preventive agent is at least one in barium mahogany sulfonate, calcium mahogany sulfonate, zinc petroleum sulfonate, rust-preventive agent T743 (oxidized petrolatum barium soap), rust-preventive agent T746 (dodecenylsuccinic acid), rust-preventive agent T703 (17 alkenyl imidazoline alkenyl succinate), rust-preventive agent T706 (mixture of 4-methyl benzotriazazole and 5-methyl benzotriazazole), zinc naphthenate, department's benzene-80 and dinonylnaphthalene sulfonic acid.
Preferably, described oxidation inhibitor is at least one in pentanoic, 2,6-toluene di-tert-butyl phenols, Phenyl beta naphthylamine, phenyl-a-naphthylamine and zinc diamyldithiocarbamate.
Preferably, described viscosifying agent is at least one in stearic acid, ten dihydroxystearic acids, oleic acid, palmitinic acid and synthetic fatty acid.
Preferably, described base oil is at least one in mineral oil and synthetic oil.
Preferably, described alkali is at least one in calcium hydroxide, lithium hydroxide, sodium hydroxide and potassium hydroxide.
The preparation method of above-described low noise lubricant, comprises the following steps:
S1 alkaline liquid: to be less than or equal to alkali dissolution under the condition of 80 DEG C in water, to form alkali lye, for subsequent use;
S2 reacts: be dissolved in by viscosifying agent in part basis oil being less than or equal under the condition of 80 DEG C; Then the temperature of mixture is risen to 90-100 DEG C, then in mixture, add alkali lye, mixture is incubated 0.5-3h at 90-100 DEG C; Then the temperature of mixture risen to 130-160 DEG C again and be incubated 0.5-2h;
S3 high temperature is refined: in mixture, add remaining base oil, then the temperature of mixture is risen to 200-220 DEG C, insulation 10-30min;
S4 modulates: mixture is cooled to 50-100 DEG C rapidly, then in mixture, adds additive and stir, grinding mixture, obtained lubricating grease.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is in harmonious proportion by adopting the base oil of different viscosity and kind, and add structure activator, make lubricating grease on the contact surface of workpiece, form the good oil film of one deck, effectively serve the effect of noise reduction.Meanwhile, reacted by composite base oil and composite viscosifying agent and prepare lubricating grease, effectively raise the work-ing life of lubricating grease.Lubricating grease prepared by the inventive method, technique is simple, and production cost is low.In micromotor, use lubricating grease of the present invention, can form the effective tempered oil film of one deck at workpiece surface, when micromotor runs up, lubricating grease not easily runs off, and resistance to elevated temperatures is good, has good lubrication, noise reduction and rust-proof effect.
Embodiment
In order to understand technology contents of the present invention more fully, below in conjunction with specific embodiment, technical scheme of the present invention being described further and being illustrated.
Embodiment 1
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step, specific as follows:
(1) get the raw materials ready
Take 770g base oil (615g mineral oil, 155g synthetic oil), 130g viscosifying agent (75g stearic acid, 25g ten dihydroxystearic acid, 30g synthetic fatty acid), 70g alkali (lithium hydroxide), 10g rust-preventive agent (3g barium mahogany sulfonate, 1g calcium mahogany sulfonate, 6g rust-preventive agent T743), 10g antioxidant (5g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 10g structure activator (2g polymethylmethacrylate, 3g ethylene propylene copolymer, 1g natural rubber, 4g polyisobutene), for subsequent use.
(2) alkaline liquid
Below 80 DEG C by alkali dissolution in water, formed alkali lye, for subsequent use;
(3) react
Take out the half of base oil total amount, viscosifying agent is dissolved in this part basis oil below 80 DEG C, obtains mixture; Then the temperature of mixture is risen to 95 DEG C, then in mixture, add alkali lye, mixture is incubated 2h at 95 DEG C; Then the temperature of mixture risen to 150 DEG C again and be incubated 1h;
(4) high temperature refining
In mixture, add remaining base oil, then the temperature of mixture is risen to 210 DEG C, insulation 20min;
(5) modulate
Adding cold oil makes mixture be cooled to rapidly 60 DEG C, then in mixture, adds rust-preventive agent, antioxidant and structure activator, and stirs, grinding mixture, obtained lubricating grease.
Lubricating grease prepared by the present embodiment is designated as RHZ1.
Embodiment 2
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (600g mineral oil, 170g synthetic oil), 130g viscosifying agent (50g ten dihydroxystearic acid, 30g oleic acid, 25g palmitinic acid, 25g synthetic fatty acid), 70g alkali (sodium hydroxide), 10g rust-preventive agent (3, g barium mahogany sulfonate, 1g calcium mahogany sulfonate, 1g zinc petroleum sulfonate, 2g rust-preventive agent T746, 3g zinc naphthenate), 10g antioxidant (4g pentanoic, 3g phenyl-a-naphthylamine, 3g zinc diamyldithiocarbamate), 10g structure activator (2g polymethylmethacrylate, 1g natural rubber, 1g polyisobutene, 6g rosin), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ2.
Embodiment 3
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (700g mineral oil, 70g synthetic oil), 130g viscosifying agent (70g oleic acid, 15g palmitinic acid, 45g synthetic fatty acid), 70g alkali (potassium hydroxide), 10g rust-preventive agent (4g barium mahogany sulfonate, 6g rust-preventive agent T746), 10g antioxidant (6g2,6-toluene di-tert-butyl phenol, 4g phenyl-a-naphthylamine), 10g structure activator (3g ethylene propylene copolymer, 4g natural rubber, 3g polyisobutene), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ3.
Embodiment 4
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (500g mineral oil, 270g synthetic oil), 130g viscosifying agent (70g stearic acid, 60g synthetic fatty acid), 70g alkali (lithium hydroxide), 10g rust-preventive agent (barium mahogany sulfonate), 10g antioxidant (phenyl-a-naphthylamine), 10g structure activator (2g polymethylmethacrylate, 2g ethylene propylene copolymer, 4g natural rubber, 2g rosin), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ4.
Embodiment 5
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (420g mineral oil, 350g synthetic oil), 130g viscosifying agent (30g ten dihydroxystearic acid, 50g oleic acid, 50g palmitinic acid), 70g alkali (lithium hydroxide), 10g rust-preventive agent (5g rust-preventive agent T746,5g rust-preventive agent T703), 10g antioxidant (3g Phenyl beta naphthylamine, 4g phenyl-a-naphthylamine, 3g zinc diamyldithiocarbamate), 10g structure activator (4g ethylene propylene copolymer, 3g natural rubber, 1g polyisobutene, 2g rosin), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ5.
Embodiment 6
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (300g mineral oil, 470g synthetic oil), 130g viscosifying agent (55g palmitinic acid, 75g synthetic fatty acid), 70g alkali (lithium hydroxide), 10g rust-preventive agent (7g rust-preventive agent T706,3g dinonylnaphthalene sulfonic acid), 10g antioxidant (5g phenyl-a-naphthylamine, 5g zinc diamyldithiocarbamate), 10g structure activator (3g polymethylmethacrylate, 3g polyisobutene, 4g rosin), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ6.
Embodiment 7
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 770g base oil (mineral oil), 130g viscosifying agent (83g ten dihydroxystearic acid, 47g palmitinic acid), 70g alkali (lithium hydroxide), 10g rust-preventive agent (1g rust-preventive agent T746,1g rust-preventive agent T703,7g department benzene-80,1g dinonylnaphthalene sulfonic acid), 10g antioxidant (2g pentanoic, 2g2,6-toluene di-tert-butyl phenol, 2g phenyl-a-naphthylamine, 4g zinc diamyldithiocarbamate), 10g structure activator (1g polymethylmethacrylate, 1g polyisobutene, 3g ethylene propylene copolymer, 6g rosin), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ7.
Embodiment 8
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 680g base oil (300g mineral oil, 380g synthetic oil), 200g viscosifying agent (100g stearic acid, 50g ten dihydroxystearic acid, 50g synthetic fatty acid), 70g alkali (calcium hydroxide), 10g rust-preventive agent (3g barium mahogany sulfonate, 3g calcium mahogany sulfonate, 4g rust-preventive agent T743), 20g antioxidant (10g pentanoic, 10g2,6-toluene di-tert-butyl phenol), 20g structure activator (10g polymethylmethacrylate, 5g ethylene propylene copolymer, 5g polyisobutene), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ8.
Embodiment 9
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 835g base oil (400g mineral oil, 435g synthetic oil), 50g viscosifying agent (25g stearic acid, g ten dihydroxystearic acid, 25g synthetic fatty acid), 70g alkali (calcium hydroxide), 15g rust-preventive agent (5g barium mahogany sulfonate, 5g calcium mahogany sulfonate, 5g rust-preventive agent T743), 15g antioxidant (10g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 15g structure activator (3g polymethylmethacrylate, 2g ethylene propylene copolymer, 10g polyisobutene), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ9.
Embodiment 10
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 765g base oil (400g mineral oil, 365g synthetic oil), 120g viscosifying agent (40g stearic acid, 20g ten dihydroxystearic acid, 60g synthetic fatty acid), 90g alkali (calcium hydroxide), 10g rust-preventive agent (3g barium mahogany sulfonate, 3g calcium mahogany sulfonate, 3g rust-preventive agent T743), 5g antioxidant (3g pentanoic, 2g2,6-toluene di-tert-butyl phenol), 10g structure activator (2g polymethylmethacrylate, 2g ethylene propylene copolymer, 2g natural rubber, 4g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ10.
Embodiment 11
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 720g base oil (400g mineral oil, 320g synthetic oil), 180g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 80g synthetic fatty acid), 80g alkali (calcium hydroxide), 5g rust-preventive agent (2g barium mahogany sulfonate, 2g calcium mahogany sulfonate, 1g rust-preventive agent T743), 10g antioxidant (5g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 5g structure activator (1g polymethylmethacrylate, 1g ethylene propylene copolymer, 1g natural rubber, 5g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ11.
Embodiment 12
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 750g base oil (400g mineral oil, 350g synthetic oil), 150g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 50g synthetic fatty acid), 80g alkali (calcium hydroxide), 5g rust-preventive agent (1g barium mahogany sulfonate, 1g calcium mahogany sulfonate, 3g rust-preventive agent T743), 10g antioxidant (5g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 5g structure activator (1g polymethylmethacrylate, 1g ethylene propylene copolymer, 1g natural rubber, 2g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ12.
Embodiment 13
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 750g base oil (300g mineral oil, 450g synthetic oil), 150g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 50g synthetic fatty acid), 80g alkali (calcium hydroxide), 10g antioxidant (5g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 10g structure activator (1g polymethylmethacrylate, 1g ethylene propylene copolymer, 1g natural rubber, 2g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ13.
Embodiment 14
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 765g base oil (400g mineral oil, 365g synthetic oil), 140g viscosifying agent (60g stearic acid, 40g ten dihydroxystearic acid, 40g synthetic fatty acid), 80g alkali (calcium hydroxide), 5g rust-preventive agent (1g barium mahogany sulfonate, 1g calcium mahogany sulfonate, 3g rust-preventive agent T743), 10g structure activator (2g polymethylmethacrylate, 2g ethylene propylene copolymer, 2g natural rubber, 4g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ14.
Embodiment 15
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 765g base oil (400g mineral oil, 365g synthetic oil), 150g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 50g synthetic fatty acid), 80g alkali (calcium hydroxide), 5g structure activator (1g polymethylmethacrylate, 1g ethylene propylene copolymer, 1g natural rubber, 2g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ15.
Embodiment 16
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step.Only for the preparation of the raw material of lubricating grease and the different of embodiment 1 in the present embodiment, alkaline liquid step, reactions steps, high temperature refining step and modulation step and embodiment 1 completely the same.Raw material for the preparation of lubricating grease is specific as follows:
Take 750g base oil (400g mineral oil, 350g synthetic oil), 150g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 50g synthetic fatty acid), 80g alkali (calcium hydroxide), 10g rust-preventive agent (3g barium mahogany sulfonate, 3g calcium mahogany sulfonate, 4g rust-preventive agent T743), 10g structure activator (2g polymethylmethacrylate, 2g ethylene propylene copolymer, 2g natural rubber, 4g petroleum pitch), for subsequent use.
Lubricating grease prepared by the present embodiment is designated as RHZ16.
Embodiment 17
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step, specific as follows:
(1) get the raw materials ready
Take 650g base oil (300g mineral oil, 350g synthetic oil), 200g viscosifying agent (50g stearic acid, 50g ten dihydroxystearic acid, 100g synthetic fatty acid), 100g alkali (calcium hydroxide), 10g rust-preventive agent (3g barium mahogany sulfonate, 3g calcium mahogany sulfonate, 4g rust-preventive agent T743), 10g antioxidant (5g pentanoic, 5g2,6-toluene di-tert-butyl phenol), 30g structure activator (4g polymethylmethacrylate, 4g ethylene propylene copolymer, 4g natural rubber, 18g petroleum pitch), for subsequent use.
(2) alkaline liquid
Below 80 DEG C by alkali dissolution in water, formed alkali lye, for subsequent use;
(3) react
Take out the half of base oil total amount, viscosifying agent is dissolved in this part basis oil below 80 DEG C, obtains mixture; Then the temperature of mixture is risen to 90 DEG C, then in mixture, add alkali lye, mixture is incubated 3h at 90 DEG C; Then the temperature of mixture risen to 160 DEG C again and be incubated 0.5h;
(4) high temperature refining
In mixture, add remaining base oil, then the temperature of mixture is risen to 200 DEG C, insulation 30min;
(5) modulate
Adding cold oil makes mixture be cooled to rapidly 50 DEG C, then in mixture, adds rust-preventive agent, antioxidant and structure activator, and stirs, grinding mixture, obtained lubricating grease.
Lubricating grease prepared by the present embodiment is designated as RHZ17.
Embodiment 18
The present embodiment provides a kind of low-noise lubricating grease being applicable to micromotor and using, and the preparation method of this kind of low-noise lubricating grease.Preparation method comprise successively get the raw materials ready, alkaline liquid, reaction, high temperature refining and modulation step, specific as follows:
(1) get the raw materials ready
Take 900g base oil (450g mineral oil, 450g synthetic oil), 50g viscosifying agent (5g stearic acid, 5g ten dihydroxystearic acid, 10g synthetic fatty acid), 50g alkali (calcium hydroxide), for subsequent use.
(2) alkaline liquid
Below 80 DEG C by alkali dissolution in water, formed alkali lye, for subsequent use;
(3) react
Take out the half of base oil total amount, viscosifying agent is dissolved in this part basis oil below 80 DEG C, obtains mixture; Then the temperature of mixture is risen to 100 DEG C, then in mixture, add alkali lye, mixture is incubated 0.5h at 100 DEG C; Then the temperature of mixture risen to 130 DEG C again and be incubated 2h;
(4) high temperature refining
In mixture, add remaining base oil, then the temperature of mixture is risen to 220 DEG C, insulation 10min;
(5) modulate
Adding cold oil makes mixture be cooled to rapidly 100 DEG C, then grinding mixture, obtained lubricating grease.
Lubricating grease prepared by the present embodiment is designated as RHZ18.
Test the basic data (Visual appearance, cone penetration, dropping point, copper corrosion, Stencil oil-dividing, extreme pressure property, abrasion resistance) of low-noise lubricating grease RHZ1-18 prepared by above embodiment 1-18, as shown in table 1, and when being applied to micromotor, micromotor decibel value, as shown in table 2.
The basic data of low-noise lubricating grease RHZ1-18 prepared by table 1 embodiment 1-18
Low-noise lubricating grease RHZ1-18 prepared by table 2 embodiment 1-18 is applied to the noise reduction of micromotor
| Decibel value | Electric current/mA | Voltage/V | Rotating speed/r/min | |
| Not grease-added | 75 | 50 | 3.7 | 2708 |
| RHZ1 | 55 | 59.2 | 3.7 | 2642 |
| RHZ2 | 54 | 61.1 | 3.7 | 2670 |
| RHZ3 | 56 | 58.5 | 3.7 | 2598 |
| RHZ4 | 60 | 61.3 | 3.7 | 2653 |
| RHZ5 | 51 | 57.8 | 3.7 | 2677 |
| RHZ6 | 55 | 59.0 | 3.7 | 2594 |
| RHZ7 | 59 | 61.1 | 3.7 | 2650 |
| RHZ8 | 65 | 68.2 | 3.7 | 2560 |
| RHZ9 | 64 | 69.3 | 3.7 | 2571 |
| RHZ10 | 63 | 64.5 | 3.7 | 2583 |
| RHZ11 | 66 | 65.6 | 3.7 | 2578 |
| RHZ12 | 64 | 67.2 | 3.7 | 2563 |
| RHZ13 | 65 | 66.2 | 3.7 | 2590 |
| RHZ14 | 62 | 70.5 | 3.7 | 2533 |
| RHZ15 | 63 | 69.2 | 3.7 | 2543 |
| RHZ16 | 67 | 68.6 | 3.7 | 2566 |
| RHZ17 | 70 | 76.8 | 3.7 | 2472 |
| RHZ18 | 71 | 75.3 | 3.7 | 2490 |
In other embodiments, structure activator can also be at least one in polymethylmethacrylate, polyisobutene, ethylene propylene copolymer, natural rubber, petroleum pitch and rosin; Rust-preventive agent can also be at least one in barium mahogany sulfonate, calcium mahogany sulfonate, zinc petroleum sulfonate, rust-preventive agent T743, rust-preventive agent T746, rust-preventive agent T703, rust-preventive agent T706, zinc naphthenate, department's benzene-80 and dinonylnaphthalene sulfonic acid; Oxidation inhibitor can also be at least one in pentanoic, 2,6-toluene di-tert-butyl phenols, Phenyl beta naphthylamine, phenyl-a-naphthylamine and zinc diamyldithiocarbamate; Viscosifying agent can also be at least one in stearic acid, ten dihydroxystearic acids, oleic acid, palmitinic acid and synthetic fatty acid; Alkali can also multiple in calcium hydroxide, lithium hydroxide, sodium hydroxide and potassium hydroxide.
The above only further illustrates technology contents of the present invention with embodiment, so that reader is easier to understand, but does not represent embodiments of the present invention and is only limitted to this, and any technology done according to the present invention extends or recreation, all by protection of the present invention.
Claims (10)
1. a low-noise lubricating grease, is characterized in that, is made up: the base oil of 65-90%, the viscosifying agent of 5-20%, the alkali of 5-10%, the additive of 0-5% of each component of following mass percent, and each component sum is 100%.
2. a kind of low-noise lubricating grease according to claim 1, it is characterized in that, the mass percent of described additive is 0.5-5%.
3. a kind of low-noise lubricating grease according to claim 1 or 2, is characterized in that, described additive comprises at least one in rust-preventive agent, antioxidant and structure activator.
4. a kind of low-noise lubricating grease according to claim 3, it is characterized in that, described structure activator is at least one in polymethylmethacrylate, polyisobutene, ethylene propylene copolymer, natural rubber, petroleum pitch and rosin.
5. a kind of low-noise lubricating grease according to claim 3, it is characterized in that, described rust-preventive agent is at least one in barium mahogany sulfonate, calcium mahogany sulfonate, zinc petroleum sulfonate, T743, T746, T703, T706, zinc naphthenate, department's benzene-80 and dinonylnaphthalene sulfonic acid.
6. a kind of low-noise lubricating grease according to claim 3, it is characterized in that, described oxidation inhibitor is at least one in pentanoic, 2,6-toluene di-tert-butyl phenols, Phenyl beta naphthylamine, phenyl-a-naphthylamine and zinc diamyldithiocarbamate.
7. a kind of low-noise lubricating grease according to claim 3, it is characterized in that, described viscosifying agent is at least one in stearic acid, ten dihydroxystearic acids, oleic acid, palmitinic acid and synthetic fatty acid.
8. a kind of low-noise lubricating grease according to claim 3, is characterized in that, described base oil is at least one in mineral oil and synthetic oil.
9. a kind of low-noise lubricating grease according to claim 3, it is characterized in that, described alkali is at least one in calcium hydroxide, lithium hydroxide, sodium hydroxide and potassium hydroxide.
10. a preparation method for low-noise lubricating grease as claimed in claim 1, is characterized in that, comprise the following steps:
S1 alkaline liquid: to be less than or equal to alkali dissolution under the condition of 80 DEG C in water, to form alkali lye, for subsequent use;
S2 reacts: be dissolved in by viscosifying agent in part basis oil being less than or equal under the condition of 80 DEG C; Then the temperature of mixture is risen to 90-100 DEG C, then in mixture, add alkali lye, mixture is incubated 0.5-3h at 90-100 DEG C; Then the temperature of mixture risen to 130-160 DEG C again and be incubated 0.5-2h;
S3 high temperature is refined: in mixture, add remaining base oil, then the temperature of mixture is risen to 200-220 DEG C, insulation 10-30min;
S4 modulates: mixture is cooled to 50-100 DEG C rapidly, then in mixture, adds additive and stir, grinding mixture, obtained lubricating grease.
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| CN106675700A (en) * | 2016-12-11 | 2017-05-17 | 新乡市恒星科技有限责任公司 | Antirust lubricating oil for railway track and preparation method thereof |
| CN106701261A (en) * | 2016-12-13 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Lubricating grease for rail wagon brake shoes stack adjuster thereof |
| CN107760427A (en) * | 2017-11-16 | 2018-03-06 | 郑州市欧普士科技有限公司 | A kind of extremely low point of oil cut rate aerial condutor anti-corrosion grease and preparation method thereof |
| CN107937092A (en) * | 2017-11-20 | 2018-04-20 | 无锡中科苏惠自动化技术有限公司 | A kind of lubricating grease for food automation equipment and preparation method thereof |
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| CN111849590A (en) * | 2020-06-19 | 2020-10-30 | 中国石油化工股份有限公司 | Low-noise mixed soap-based lubricating grease composition and preparation method thereof |
| CN115820321A (en) * | 2022-11-22 | 2023-03-21 | 中国石油化工股份有限公司 | Composite calcium-based lubricating grease composition and preparation method thereof |
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| CN106147944A (en) * | 2016-06-27 | 2016-11-23 | 宁波启航润滑油有限公司 | A kind of new technology preparing low-noise lubricating grease |
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| CN106701261A (en) * | 2016-12-13 | 2017-05-24 | 新乡市恒星科技有限责任公司 | Lubricating grease for rail wagon brake shoes stack adjuster thereof |
| CN107760427A (en) * | 2017-11-16 | 2018-03-06 | 郑州市欧普士科技有限公司 | A kind of extremely low point of oil cut rate aerial condutor anti-corrosion grease and preparation method thereof |
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| CN110295081A (en) * | 2019-07-11 | 2019-10-01 | 宁波启航润滑油有限公司 | A kind of lubricating grease and its preparation method and application of nontoxic noise reduction |
| CN110295081B (en) * | 2019-07-11 | 2021-10-22 | 宁波启航润滑油有限公司 | Non-toxic noise-reducing lubricating grease and preparation method and application thereof |
| CN111849590A (en) * | 2020-06-19 | 2020-10-30 | 中国石油化工股份有限公司 | Low-noise mixed soap-based lubricating grease composition and preparation method thereof |
| CN115820321A (en) * | 2022-11-22 | 2023-03-21 | 中国石油化工股份有限公司 | Composite calcium-based lubricating grease composition and preparation method thereof |
| CN115820321B (en) * | 2022-11-22 | 2023-11-14 | 中国石油化工股份有限公司 | Composite calcium-based lubricating grease composition and preparation method thereof |
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Application publication date: 20151230 |