CN116463165A - O-ring lubricant for engine warm water pipe and preparation method thereof - Google Patents
O-ring lubricant for engine warm water pipe and preparation method thereof Download PDFInfo
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- CN116463165A CN116463165A CN202310448892.0A CN202310448892A CN116463165A CN 116463165 A CN116463165 A CN 116463165A CN 202310448892 A CN202310448892 A CN 202310448892A CN 116463165 A CN116463165 A CN 116463165A
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- 239000000314 lubricant Substances 0.000 title claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000005496 tempering Methods 0.000 claims description 9
- 229920005682 EO-PO block copolymer Polymers 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- -1 sodium alkyl sulfonate Chemical class 0.000 claims description 3
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 230000003993 interaction Effects 0.000 abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 2
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/36—Seal compatibility, e.g. with rubber
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/34—Lubricating-sealants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to the technical field of lubricants and discloses an O-shaped ring lubricant for an engine warm water pipe and a preparation method thereof. The lubricant comprises: water, an aqueous lubricant, and a pH adjuster; the water content is 90.5-94.5wt%, the aqueous lubricant content is 4-5wt% and the pH regulator content is 1.5-4.5wt%, based on the total weight of the lubricant. The O-shaped ring lubricant for the engine warm water pipe provided by the invention adopts specific component content, and the preparation method provided by the invention can realize better overall interaction, and the blended lubricant has good storage stability.
Description
Technical Field
The invention relates to the field of lubricants and discloses an O-shaped ring lubricant for an engine warm water pipe and a preparation method thereof.
Background
The automobile warm water pipe is a pipe for connecting the water tank circulating system to the warm air blower, and the outlet of the automobile warm water pipe is sealed by an O-shaped ring. For easy assembly, the O-shaped sealing ring is soaked and lubricated by adopting a lubricant, then is placed at the outlet of the warm water pipe, and then the warm water pipe is assembled between the water tank and the warm air blower.
The lubricant adopted by the O-shaped sealing ring is a water-soluble lubricant. The lubricant is required to have no solid substance precipitation or layering phenomenon in the storage and use processes so as not to influence the sealing performance and the assembly effect of the O-shaped ring. Therefore, the O-shaped ring lubricant for the engine warm water pipe has great significance for providing good storage stability for the market.
Disclosure of Invention
The invention aims to solve the problem of poor storage stability of an O-shaped sealing ring in the prior art, and provides an O-shaped sealing ring lubricant for an engine warm water pipe and a preparation method thereof.
In order to achieve the above object, a first aspect of the present invention provides a lubricant, wherein the lubricant comprises: water, an aqueous lubricant, and a pH adjuster;
the water content is 90.5-94.5wt%, the aqueous lubricant content is 4-5wt% and the pH regulator content is 1.5-4.5wt%, based on the total weight of the lubricant.
In a second aspect, the present invention provides a method of preparing a lubricant, wherein the method comprises the steps of:
heating water to 30-40 ℃ for the first time, adding a pH regulator for the first time for blending, then adding an aqueous lubricant for the second time for heating to 40-60 ℃ for the second time for blending, and obtaining the lubricant.
The third aspect of the present invention provides a lubricant prepared by the above preparation method.
Through the technical scheme, the O-shaped ring lubricant for the warm water pipe of the engine provided by the invention adopts specific component content, and through the preparation method provided by the invention, the overall better interaction can be realized, and the blended lubricant has good storage stability.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
The first aspect of the present invention provides a lubricant, wherein the lubricant comprises: water, an aqueous lubricant, and a pH adjuster;
the water content is 90.5-94.5wt%, the aqueous lubricant content is 4-5wt% and the pH regulator content is 1.5-4.5wt%, based on the total weight of the lubricant.
In the present invention, when the amounts of the components in the lubricant satisfy the above ranges, an overall better interaction can be achieved, so that the lubricant has good storage stability. When the amount of water is more than 94.5wt%, lubricity may be affected, and when the amount of water is less than 90.5wt%, storage stability may be affected; when the amount of the aqueous lubricant is more than 4.7wt%, the assemblability may be affected, and when the amount of the aqueous lubricant is less than 4.3wt%, the lubricity may be affected; when the amount of the pH adjustor is more than 4.5wt%, safety may be affected, and when the amount of the pH adjustor is less than 1.5wt%, storage stability may be affected.
Further, the water content is 91.5 to 93.5wt%, the aqueous lubricant content is 4.3 to 4.7wt% and the pH adjustor content is 2.2 to 3.8wt%, based on the total weight of the lubricant. When the composition of the lubricant is further within the above range, good storage stability of the lubricant can be provided.
According to the invention, the water is selected from distilled water and/or demineralized water. In the present invention, when water is tap water and/or industrial water, it contains too high a concentration of metal ions, and its storage stability is poor.
According to the present invention, the aqueous lubricant is selected from at least one of sodium alkyl sulfonate, polyethylene glycol and polyether ester reverse EO/PO block copolymer. More preferably, the polyethylene glycol has a weight average molecular weight of 400 to 600g/mol, the polyether ester-inverted EO/PO block copolymer has a weight average molecular weight of 300 to 500g/mol, good lubricity can be provided, and when the molecular weight of the ethylene glycol and polyether ester-inverted EO/PO block copolymer is less than the above-defined range, the lubricity of the lubricant is poor; when the molecular weight of the ethylene glycol and polyether ester inverted EO/PO block copolymer is greater than the above-defined range, the storage stability of the lubricant is poor. Polyethylene glycol and polyetherester inverted EO/PO block copolymers are commercially available, e.g., PEG-400, starad 1720.
According to the present invention, the pH adjuster is selected from at least one of triethanolamine, diethanolamine, ethanolamine, and 2-amino-2-methyl-1-propanol.
In a second aspect, the present invention provides a method of preparing a lubricant, wherein the method comprises the steps of:
heating water to 30-40 ℃ for the first time, adding a pH regulator for the first time for blending, then adding an aqueous lubricant for the second time for heating to 40-60 ℃ for the second time for blending, and obtaining the lubricant.
In the present invention, when the temperatures of the first and second heating satisfy the above ranges and a stepwise method is adopted, it is possible to advantageously obtain the lubricant of the present invention to overcome the technical problems of the present invention.
According to the invention, the water is used in an amount of 90.5 to 94.5 wt.%, the aqueous lubricant is used in an amount of 4 to 5 wt.% and the pH regulator is used in an amount of 1.5 to 4.5 wt.%, based on the total feed amount; preferably, the water is used in an amount of 91.5 to 93.5wt%, the aqueous lubricant is used in an amount of 4.3 to 4.7wt% and the pH adjustor is used in an amount of 2.2 to 3.8wt%.
According to the invention, the first heating is to 33-37 ℃.
According to the invention, the second heating is to 45-55 ℃.
According to the invention, the conditions of the first reconciliation include: blending at 100-300rpm for 0.5-1h.
Further, the first reconciliation condition includes: blending at 150-250rpm for 0.7-0.8h.
According to the invention, the conditions of the second tempering include: blending is carried out at a speed of 100-300rpm for 1-2h.
Further, the second reconciliation condition includes: blending at 150-250rpm for 1.4-1.6h.
The third aspect of the present invention provides a lubricant prepared by the above preparation method.
The most preferred embodiment according to the present invention comprises:
the lubricant is obtained by first heating 90.5 to 94.5wt%, preferably 91.5 to 93.5wt% of water at 30 to 40 ℃, preferably 33 to 37 ℃, adding 1.5 to 4.5wt%, preferably 2.2 to 3.8wt% of a pH regulator, performing a first tempering at 100 to 300rpm, preferably 150 to 250rpm, for 0.5 to 1.0h, preferably 0.7 to 0.8h, adding 4.0 to 5.0wt%, preferably 4.3 to 4.7wt% of an aqueous lubricant, performing a second heating at 40 to 60 ℃, preferably 45 to 55 ℃, followed by a second tempering at 100 to 300rpm, preferably 150 to 250rpm, for 1.0 to 2.0h, preferably 1.4 to 1.6h.
The present invention will be described in detail by examples. In the following examples of the present invention,
storage stability of the lubricant was measured according to GB/T6144 5.3;
the raw materials used in the examples and comparative examples are all commercially available.
Example 1
After the water is heated for the first time, adding a pH regulator for the first time for blending, then adding an aqueous lubricant for the second time for blending, and obtaining the lubricant;
wherein, the distilled water content is 93.5wt%, the triethanolamine content is 4.3wt%, the sodium alkyl sulfonate content is 2.2wt%, the first heating to 37 ℃, the first tempering rotating speed is 250rpm, the time is 0.7h, the second heating to 55 ℃, the second tempering rotating speed is 250rpm, the time is 1.4h.
Examples 2 to 5
A lubricant was prepared as in example 1, except that: the types and amounts of the respective raw materials in the lubricant were different from those in example 1, and are specifically shown in table 1; the conditions of the first and second heating and the first and second tempering were different from those of example 1, as shown in table 1. Lubricants A2-A5 were prepared separately.
Comparative examples 1 to 5
A lubricant was prepared as in example 1, except that: the types and amounts of the respective raw materials in the lubricant were different from those in example 1, and are specifically shown in table 1; the conditions of the first and second heating and the first and second tempering were different from those of example 1, as shown in table 1. Lubricants D2-D5 were prepared separately.
The respective properties of the lubricants prepared in examples and comparative examples were tested, and the test results are shown in table 2.
TABLE 1
Polyetherester reverse EO/PO block copolymer: starad 1720.
Table 1 (subsequent)
TABLE 2
| Test item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Storage stability | Qualified product | Qualified product | Qualified product | Qualified product | Qualified product |
Table 2 (subsequent)
As can be seen from tables 1 and 2, the lubricants prepared in the examples of the present invention have good storage stability.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (10)
1. An engine warm water pipe O-ring lubricant, the lubricant comprising: water, an aqueous lubricant, and a pH adjuster;
the water content is 90.5-94.5wt%, the aqueous lubricant content is 4-5wt% and the pH regulator content is 1.5-4.5wt%, based on the total weight of the lubricant.
2. The lubricant according to claim 1, wherein the water is present in an amount of 91.5-93.5wt%, the aqueous lubricant is present in an amount of 4.3-4.7wt% and the pH adjuster is present in an amount of 2.2-3.8wt%, based on the total weight of the lubricant.
3. A lubricant according to claim 1 or 2, characterized in that,
the aqueous lubricant is selected from at least one of sodium alkyl sulfonate, polyethylene glycol and polyether ester reverse EO/PO block copolymer.
4. A lubricant according to any one of claims 1-3, wherein the pH adjuster is selected from at least one of triethanolamine, diethanolamine, ethanolamine and 2-amino-2-methyl-1-propanol.
5. A method of preparing a lubricant, the method comprising the steps of:
heating water to 30-40 ℃ for the first time, adding a pH regulator for the first time for blending, then adding an aqueous lubricant for the second time for heating to 40-60 ℃ for the second time for blending, and obtaining the lubricant.
6. The method according to claim 5, wherein the amount of water is 90.5 to 94.5wt%, the amount of the aqueous lubricant is 4 to 5wt% and the amount of the pH adjuster is 1.5 to 4.5wt%, based on the total amount of the feed; preferably, the water is used in an amount of 91.5 to 93.5wt%, the aqueous lubricant is used in an amount of 4.3 to 4.7wt% and the pH adjustor is used in an amount of 2.2 to 3.8wt%.
7. The method of preparation according to claim 5 or 6, wherein the first heating is to 33-37 ℃;
preferably, the second heating is to 45-55 ℃.
8. The method of any one of claims 5-7, wherein the first tempering conditions include: blending at 100-300rpm for 0.5-1h.
9. The method of any one of claims 5-8, wherein the second tempering conditions comprise: blending is carried out at a speed of 100-300rpm for 1-2h.
10. A lubricant prepared by the preparation method of any one of claims 5 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310448892.0A CN116463165B (en) | 2023-04-24 | 2023-04-24 | O-ring lubricant for engine warm water pipe and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310448892.0A CN116463165B (en) | 2023-04-24 | 2023-04-24 | O-ring lubricant for engine warm water pipe and preparation method thereof |
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| CN116463165B CN116463165B (en) | 2024-06-25 |
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