CN114350431B - Multifunctional lubricating grease, and preparation method and application thereof - Google Patents
Multifunctional lubricating grease, and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides multifunctional lubricating grease, a preparation method and application thereof, wherein the multifunctional lubricating grease comprises the following components in percentage by mass: 46.1% -53.5% of aluminum-based grease; 33.5% -43% of titanium-based grease; 1.5% -2.6% of an anti-pitting agent; 0.2% -0.8% of an oiliness agent; 3.45% -5.1% of an antiwear agent; 3.7% -5.2% of an anticorrosive agent; the pitting corrosion inhibitor includes cerium oxide. The multifunctional lubricating grease not only has lubricating and wear-resisting properties of a friction pair based on the lubricating grease, but also has pitting corrosion resistance, high temperature resistance and oxidation corrosion resistance, and the preparation method is simple and convenient to popularize and use.
Description
Technical Field
The invention belongs to the technical field of lubricating grease, and relates to multifunctional lubricating grease, a preparation method and application thereof.
Background
With the rapid development of industrial process, grease is used in large quantities due to its good friction-reducing and wear-resisting effects, and becomes an indispensable lubricant for industrial equipment.
The lubricating grease is prepared by blending mineral oil (or synthetic lubricating oil) and a thickening agent, is a thick grease-like semisolid, is used for a mechanical friction part, plays a role in lubricating, reducing mechanical friction and preventing mechanical abrasion, and simultaneously plays a role in protecting metal corrosion and sealing and dust prevention; also on metal surfaces, and serves to fill voids and prevent rusting or corrosion of the metal.
At present, lubricating grease with comprehensive performance is lacked in the market.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide multifunctional lubricating grease, a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
one purpose of the invention is to provide multifunctional lubricating grease which comprises the following components in percentage by mass:
46.1-53.5% of aluminum-based grease
33.5 to 43.0 percent of titanium-based grease
1.5-2.6% of anti-pitting agent
0.2 to 0.8 percent of oiliness agent
3.45-5.1% of antiwear agent
3.7% -5.2% of an anticorrosive agent;
the pitting corrosion inhibitor includes cerium oxide.
The components of the multifunctional lubricating grease are matched with each other and supported with each other, so that the multifunctional lubricating grease not only has lubricating and wear-resisting properties of a friction pair based on the lubricating grease, but also has pitting corrosion resistance, high temperature resistance and oxidation corrosion resistance.
The aluminum grease is preferably a complex aluminum grease, i.e., a grease prepared by thickening a base oil with a complex aluminum soap produced by reacting stearic acid, benzoic acid, and an organoaluminum compound. The aluminum-based grease is commercially available.
The titanium-based grease is preferably a complex titanium-based grease, i.e., a grease made of a complex titanium soap thickened mineral base oil or a synthetic base oil produced from terephthalic acid, stearic acid and an organic titanium compound. The titanium-based grease is commercially available.
Pitting (also known as pitting, pitting corrosion, etc.) is a very localized form of corrosion that produces pinholes in metal where there is little or minimal corrosion. The pitting corrosion is one of local corrosion forms with great destructiveness and hidden danger due to the fact that the reaction is accelerated under the action of autocatalysis, once the pitting corrosion occurs, the dissolution speed in a hole is quite high, the harmfulness of the pitting corrosion is great, and accidents are caused frequently and suddenly. Therefore, it is very necessary that the grease has anti-pitting performance.
In the multifunctional lubricating grease provided by the invention, the anti-pitting agent and the base grease have a synergistic effect, so that the multifunctional lubricating grease has high temperature resistance, pitting resistance and wear resistance. The danger caused by pitting of the friction pair is relieved.
The multifunctional lubricating grease comprises the following components in percentage by mass:
46.1% -53.5% of aluminum-based grease, such as 46.8%, 47.5%, 48.2%, 49.6%, 50.2%, 51.3%, 52.6% or 53.0%, and the like, preferably 48.9% -51.5%;
33.5-43.0% of titanium-based grease, such as 34.2%, 35.6%, 36.8%, 39.4%, 40.2% or 42.5%, and preferably 38.5-41.0%;
1.5-2.6% of anti-pitting agent, such as 1.6%, 1.8%, 2.0%, 2.3% or 2.5%, and preferably 1.8-2.2%;
0.2-0.8% of oiliness agent, such as 0.3%, 0.5%, 0.6% or 0.7%, preferably 0.3-0.6%;
3.45% -5.1% of an antiwear agent, such as 3.6%, 3.8%, 4.2%, 4.5%, 4.7% or 5.0%, and preferably 3.88% -4.3%;
the corrosion inhibitor is 3.7% -5.2%, such as 3.8%, 3.9%, 4.0%, 4.2%, 4.5% or 5.0%, and the like, and preferably 4.1% -4.7%.
As is well known to those skilled in the art, the sum of the mass percentages of the components of the multifunctional grease should be 100%.
Namely, as a preferred technical scheme, the multifunctional lubricating grease comprises the following components in percentage by mass:
48.9 to 51.5 percent of aluminum-based grease
38.5 to 41.0 percent of titanium-based grease
1.8-2.2% of anti-pitting agent
0.3 to 0.6 percent of oiliness agent
3.88 to 4.3 percent of antiwear agent
4.1% -4.7% of an anticorrosive agent.
At the preferable mass percentage, the multifunctional lubricating grease has better performance.
In addition, as a more preferable technical scheme, the multifunctional lubricating grease comprises the following components in percentage by mass:
50.0 percent of aluminum-based grease
39.0 percent of titanium-based grease
Anti-pitting agent 2.0%
0.4 percent of oiliness agent
4.1 percent of antiwear agent
4.5 percent of anticorrosive agent.
The above-described more preferable mass percentage content is the most preferable for each property of the multifunctional grease.
The oiliness agent is a chemical which plays a role of enhancing the lubricity of the lubricating oil and preventing wear and scuffing under boundary lubrication conditions, and is generally animal and vegetable oil or a compound having a polar group at the terminal of a hydrocarbon chain, and these compounds have a strong affinity for metals, and function to adsorb on the friction surface through the polar group to form a molecular orientation adsorption film, preventing the metals from contacting with each other, thereby reducing friction and wear, i.e., the oiliness agent has an anti-wear effect in the high temperature resistant grease. Preferably, the oiliness agent is selected from sulfurized olefin cottonseed oil. Other oiliness agents can be selected by the person skilled in the art, but the sulfurized olefin cottonseed oil as the oiliness agent can be better matched with other components to exert the optimal performance of the grease.
The multifunctional lubricating grease comprises a lubricating grease body, a lubricating grease lubricant, a lubricating grease lubricant, a lubricating grease lubricant and a lubricating grease lubricant, a lubricant and a lubricant for lubricating grease, a lubricant for lubricating grease, a lubricating.
Further preferably, the antiwear agent comprises the following components in percentage by mass:
3.4 to 4.2 percent of molybdenum disulfide
0.05% -0.7% of copper borate;
the mass percentage of the molybdenum disulfide can be 3.5%, 3.6%, 3.7%, 3.9% or 4.1% and the like;
the copper borate can be 0.08%, 0.1%, 0.2%, 0.3%, 0.5% or 0.6% by mass.
More preferably, the antiwear agent comprises the following components in percentage by mass:
3.8 to 4.1 percent of molybdenum disulfide
0.08% -0.2% of copper borate;
most preferably, the antiwear agent comprises the following components in percentage by mass:
4.0 percent of molybdenum disulfide
0.1 percent of copper borate.
The antiwear agent combination can exert the optimal antiwear performance in the multifunctional lubricating grease.
In the production and use processes of the lubricating grease, impurities or conditions such as heating, metal, oxygen and the like are encountered, so that an oxidation monomer is easily generated, oil sludge, insoluble polar colloid, paint film and sediment are generated through a free radical reaction, and a reaction chain of an oxidation chain locking reaction can be broken by an anticorrosive agent and an antioxidant, so that the further progress of the oxidation reaction is stopped.
Preferably, in the invention, the corrosion inhibitor comprises polyether ester, and the polyether ester can act synergistically with a base grease, so that the corrosion-resistant and oxidation-resistant performance of the multifunctional lubricating grease is obviously improved;
preferably, the anticorrosive agent further comprises barium dinonyl naphthalene sulfonate, and the barium dinonyl naphthalene sulfonate has anticorrosive performance and can be matched with polyether ester to further improve the anticorrosive performance of the multifunctional lubricating grease.
Further preferably, the anticorrosive agent comprises the following components in percentage by mass:
polyether ester 3.2% -3.9%
0.5% -1.3% of barium dinonyl naphthalene sulfonate;
the mass percentage of the polyether ester can be 3.3%, 3.4%, 3.5%, 3.6%, 3.7% or 3.8% and the like;
the mass percentage of the dinonyl naphthalene sulfonic acid barium can be 0.6%, 0.7%, 0.8%, 0.9%, 1.0% or 1.1% and the like.
More preferably, the anticorrosive agent comprises the following components in percentage by mass:
polyether ester 3.3% -3.6%
0.8% -1.1% of barium dinonyl naphthalene sulfonate;
most preferably, the anticorrosive agent comprises the following components in percentage by mass:
polyether ester 3.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
In summary, as a preferred technical scheme, the multifunctional lubricating grease comprises the following components in percentage by mass:
46.1-53.5% of aluminum-based grease
33.5 to 43.0 percent of titanium-based grease
1.5 to 2.6 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.2% -0.8%
3.4 to 4.2 percent of molybdenum disulfide
0.05 to 0.7 percent of copper borate
Polyether ester 3.2% -3.9%
0.5-1.3% of barium dinonyl naphthalene sulfonate.
As a more preferable technical scheme, the multifunctional lubricating grease comprises the following components in percentage by mass:
48.9 to 51.5 percent of aluminum-based grease
38.5 to 41.0 percent of titanium-based grease
1.8 to 2.2 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.3% -0.6%
3.8 to 4.1 percent of molybdenum disulfide
0.08-0.2% of copper borate
Polyether ester 3.3% -3.6%
0.8-1.1% of barium dinonyl naphthalene sulfonate.
As the most preferred technical scheme, the multifunctional lubricating grease comprises the following components in percentage by mass:
50.0 percent of aluminum-based grease
Titanium-based grease 39.0%
2.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
Molybdenum disulfide 4.0%
0.1 percent of copper borate
Polyether ester 3.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
The second object of the present invention is to provide a method for preparing the multifunctional grease, which comprises the following steps:
step 1, mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, mixing the anti-corrosive agent, the oiliness agent, the anti-wear agent and the anti-corrosion agent with the first mixture to form a second mixture;
and 3, grinding the second mixture to obtain the multifunctional lubricating grease.
Preferably, the mixing of step 1 comprises stirring.
Preferably, the step 2 of mixing the anti-corrosion agent, the oiliness agent, the anti-wear agent and the anti-corrosion agent with the mixture comprises the following steps: cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate are sequentially added into a reaction kettle and mixed with the first mixture.
In order to make the grease texture compact and bubble free, the grinding in step 3 is preferably carried out in a three-roll grinding calender.
Preferably, the number of grinding in step 3 is 3-6, such as 4 or 5.
The multifunctional lubricating grease provided by the invention is simple in preparation method, less in preparation procedures, capable of being obtained by only three parts, and convenient to popularize and use.
It is a further object of the present invention to provide a use of the multifunctional grease as described above for lubricating mechanical equipment.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the following beneficial effects:
the multifunctional lubricating grease provided by the invention has excellent lubricating protection performance and wear resistance of a friction pair;
according to the multifunctional lubricating grease provided by the invention, due to the synergistic effect between cerium oxide and base grease, the multifunctional lubricating grease also has high temperature resistance and pitting corrosion resistance;
according to the multifunctional lubricating grease provided by the invention, the polyether ester and the base grease have a synergistic effect, so that the multifunctional lubricating grease has anti-corrosion and anti-oxidation properties;
the components of the multifunctional lubricating grease provided by the invention are matched with each other, mutually support and have stable state;
the multifunctional lubricating grease provided by the invention is simple in preparation method, convenient to popularize and use, and especially suitable for lubricating mechanical equipment such as automobile parts.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Example 1
The multifunctional lubricating grease comprises the following components in percentage by mass:
46.1 percent of aluminum-based grease
43.0 percent of titanium-based grease
1.5 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.8%
3.4 percent of molybdenum disulfide
0.7% of copper borate;
polyether ester 3.2%
1.3 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 3 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 2
The multifunctional lubricating grease comprises the following components in percentage by mass:
aluminum-based grease 53.5%
Titanium-based grease 35.05%
2.6 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.2%
4.2 percent of molybdenum disulfide
0.05 percent of copper borate
Polyether ester 3.9%
0.5 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 4 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 3
The multifunctional lubricating grease comprises the following components in percentage by mass:
46.5 percent of aluminum-based grease
Titanium-based grease 40.0%
2.6 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.8%
4.2 percent of molybdenum disulfide
0.7% of copper borate;
polyether ester 3.9%
1.3 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 5 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 4
The multifunctional lubricating grease comprises the following components in percentage by mass:
53.0 percent of aluminum-based grease
Titanium-based grease 33.5%
2.6 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.8%
4.2 percent of molybdenum disulfide
0.7% of copper borate;
polyether ester 3.9%
1.3 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 6 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 5
The multifunctional lubricating grease comprises the following components in percentage by mass:
aluminum-based grease 50.7%
38.5 percent of titanium-based grease
1.8 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.6%
3.8 percent of molybdenum disulfide
0.2% of copper borate;
polyether ester 3.3%
1.1 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing the mixture with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 3 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 6
The multifunctional lubricating grease comprises the following components in percentage by mass:
49.42 percent of aluminum-based grease
39.5 percent of titanium-based grease
2.2 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.3%
4.1 percent of molybdenum disulfide
0.08 percent of copper borate
Polyether ester 3.6%
0.8 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 5 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 7
The multifunctional lubricating grease comprises the following components in percentage by mass:
51.5 percent of aluminum-based grease
38.4 percent of titanium-based grease
1.8 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.3%
3.8 percent of molybdenum disulfide
0.1% of copper borate;
polyether ester 3.3%
0.8 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing the mixture with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 4 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 8
The multifunctional lubricating grease comprises the following components in percentage by mass:
49.0 percent of aluminum-based grease
Titanium-based grease 40.9%
1.8 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.3%
3.8 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 3.3%
0.8 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 4 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 9
The multifunctional lubricating grease comprises the following components in percentage by mass:
48.92% of aluminum-based grease
Titanium-based grease 41.0%
1.8 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.3%
Molybdenum disulfide 3.8%
0.08 percent of copper borate
Polyether ester 3.3%
0.8 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing the mixture with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 4 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Example 10
The multifunctional lubricating grease comprises the following components in percentage by mass:
50.0 percent of aluminum-based grease
39.0 percent of titanium-based grease
2.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
4.0 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 3.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
The preparation method of the multifunctional lubricating grease comprises the following steps:
step 1, stirring and mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and uniformly mixing with the first mixture to obtain a second mixture;
and 3, grinding the second mixture for 4 times in a three-roll grinding calender to obtain the multifunctional lubricating grease.
Comparative example 1
The components and the mass percentages of the components of the lubricating grease are the same as those in example 10, and the only difference is that aluminum base grease is replaced by lithium base grease.
The preparation method of the grease was the same as that of the grease in example 10.
Comparative example 2
The components and the mass percentages of the components of the lubricating grease are the same as those in example 10, and the only difference is that titanium base grease is replaced by lithium base grease.
The preparation method of the grease was the same as that of the grease in example 10.
Comparative example 3
A grease was prepared as in example 10, except that cerium oxide was replaced with lanthanum oxide.
The preparation method of the grease was the same as that of the grease in example 10.
Comparative example 4
The lubricating grease comprises the following components in percentage by mass:
45.0 percent of aluminum-based grease
45.0 percent of titanium-based grease
1.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
4.0 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 3.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
The preparation of the grease was the same as the preparation of the grease described in example 10.
Comparative example 5
The lubricating grease comprises the following components in percentage by mass:
55.0 percent of aluminum-based grease
Titanium-based grease 33.0%
3.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
4.0 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 3.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
The preparation of the grease was the same as the preparation of the grease described in example 10.
Comparative example 6
The multifunctional lubricating grease comprises the following components in percentage by mass:
57.2 percent of aluminum-based grease
32.5 percent of titanium-based grease
2.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
4.0 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 2.8%
1.0 percent of barium dinonyl naphthalene sulfonate.
The preparation of the grease was the same as the preparation of the grease described in example 10.
Comparative example 7
The multifunctional lubricating grease comprises the following components in percentage by mass:
aluminum-based grease 44.0%
44.0 percent of titanium-based grease
2.0 percent of cerium oxide
Sulfurized olefin cottonseed oil 0.4%
4.0 percent of molybdenum disulfide
0.1 percent of copper borate
Polyether ester 4.5%
1.0 percent of barium dinonyl naphthalene sulfonate.
The preparation of the grease was the same as the preparation of the grease described in example 10.
Comparative example 8
The components and the mass percentage of each component of the lubricating grease are the same as those in example 10, and the only difference is that the polyether ester is replaced by 2,6 di-tert-butyl-p-cresol.
The preparation method of the grease was the same as that of the grease in example 10.
The above examples and comparative examples were tested for performance, the test types and test methods were as follows:
1. working cone penetration: GB/T269-1991;
2. dropping point: GB/T4929-1985;
3. PD value: GB/T12583-98;
4. etching (T2 copper sheet, 100 ℃, 24 h): GB/T7326-1987;
5. steel mesh oil separation (100 ℃, 24 h): SH/T0324-;
6. oxidation stability (99 ℃, 100h, 0.76 MPa): SH/T0122-.
The test results are shown in table 1 below:
as can be seen from the table 1, the multifunctional lubricating grease provided by the invention has excellent lubrication protection performance and wear resistance of a friction pair, and has high temperature resistance and pitting corrosion resistance due to the synergistic effect of cerium oxide and base grease; the polyether ester and the basic grease have a synergistic effect, so that the multifunctional lubricating grease has the corrosion resistance and the oxidation resistance; all components of the multifunctional lubricating grease are matched with each other, mutually support and have stable state; the lubricating grease is suitable for lubricating mechanical equipment such as automobile parts.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The multifunctional lubricating grease is characterized by comprising the following components in percentage by mass:
46.1-53.5% of aluminum-based grease
33.5 to 43.0 percent of titanium-based grease
1.5-2.6% of anti-pitting agent
0.2 to 0.8 percent of oiliness agent
3.45-5.1% of antiwear agent
3.7% -5.2% of an anticorrosive agent;
the pitting corrosion inhibitor includes cerium oxide; the oiliness agent is selected from sulfurized olefin cottonseed oil;
according to the mass percentage of the anticorrosive agent in the multifunctional lubricating grease, the anticorrosive agent comprises:
polyether ester 3.2% -3.9%
0.5-1.3% of barium dinonyl naphthalene sulfonate.
2. The multifunctional lubricating grease as claimed in claim 1, wherein the multifunctional lubricating grease comprises the following components in percentage by mass:
48.9 to 51.5 percent of aluminum-based grease
38.5 to 41.0 percent of titanium-based grease
1.8-2.2% of anti-pitting agent
0.3 to 0.6 percent of oiliness agent
3.88 to 4.3 percent of antiwear agent
4.1% -4.7% of an anticorrosive agent;
the sum of the mass percentages of the components is 100 percent.
3. The multifunctional lubricating grease of claim 1, wherein the multifunctional lubricating grease comprises the following components in percentage by mass:
50.0 percent of aluminum-based grease
39.0 percent of titanium-based grease
2.0 percent of anti-pitting agent
0.4 percent of oiliness agent
4.1 percent of antiwear agent
4.5 percent of anticorrosive agent.
4. The multifunctional lubricating grease of claim 1, wherein the antiwear agent comprises the following components in percentage by mass:
3.4 to 4.2 percent of molybdenum disulfide
0.05-0.7% of copper borate.
5. The method for preparing the multifunctional grease of claim 4, wherein the method comprises the following steps:
step 1, mixing aluminum-based grease and titanium-based grease in a reaction kettle to form a first mixture;
step 2, mixing the anti-corrosive agent, the oiliness agent, the anti-wear agent and the anti-corrosion agent with the first mixture to form a second mixture;
and 3, grinding the second mixture to obtain the multifunctional lubricating grease.
6. The method for preparing multifunctional grease of claim 5, wherein the mixing of step 1 comprises stirring and mixing.
7. The method for preparing the multifunctional grease of claim 5, wherein the step 2 of mixing the anti-corrosion agent, the oiliness agent, the anti-wear agent and the anti-corrosion agent with the mixture comprises the following steps: sequentially adding cerium oxide, molybdenum disulfide, polyether ester, sulfurized olefin cottonseed oil, barium dinonyl naphthalene sulfonate and copper borate into a reaction kettle, and mixing with the first mixture;
3, grinding is carried out in a three-roller grinding calender;
and 3, grinding for 3-6 times.
8. Use of the multifunctional grease according to any one of claims 1 to 4 for lubricating mechanical equipment.
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