CN105419919A - Low-noise polyurea lubricating grease and preparation method thereof - Google Patents
Low-noise polyurea lubricating grease and preparation method thereof Download PDFInfo
- Publication number
- CN105419919A CN105419919A CN201510863549.8A CN201510863549A CN105419919A CN 105419919 A CN105419919 A CN 105419919A CN 201510863549 A CN201510863549 A CN 201510863549A CN 105419919 A CN105419919 A CN 105419919A
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- Prior art keywords
- grease
- polyurea
- lubricating grease
- preparation
- base oil
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/12—Partial amides of polycarboxylic acids
- C10M2215/121—Partial amides of polycarboxylic acids used as thickening agents
-
- 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
- C10N2030/76—Reduction of noise, shudder, or vibrations
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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- 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 discloses low-noise polyurea lubricating grease and a preparation method thereof. The low-noise polyurea lubricating grease is prepared from 85-90 parts by weight of base oil, 8-15 parts by weight of polyurea thickening agent and 1-4 parts by weight of hydroxyl compound. The polyurea lubricating grease prepared by the method disclosed by the invention has a better and stable vibration value, thereby reducing noise values of motors and low vibration bearings of office automation equipment and household appliances. The product has remarkable influence on a noise reduction effect.
Description
Technical field
The present invention relates to technical field of lubricating grease, specifically, relate to a kind of low noise polyurea grease and preparation method thereof.
Background technology
In modern manufacturing industry, comprise the motor of business automation equipment and household electrical appliance, use the ball bearing of low noise and low vibration, New Type Military equipment has also had higher requirement to bearing noise.These bearing great majority are disposable deep groove ball bearings of minor diameter, band sealing, and are nearly all adopt grease lubrication.
Research both at home and abroad for low-noise lubricating grease all takes much count of, and has sale and the application of numerous low-noise lubricating grease products, and well-known low-noise lubricating grease product has NSK, SKF, ECCO, KLUBER, LUBCON, the product of the companies such as collaborative and Sanyo of Japan.Domestic low-noise lubricating grease product also has larger gap compared with internationally renowned brand, mainly due to noisiness and the life-span deficiency of lubricating grease.Low-noise lubricating grease can be divided into universal low noise bearing lubricating grease, low-temperature and high-speed low noise bearing lubricating grease and high-temperature long life low noise bearing lubricating grease, and following high-temperature long life low-noise lubricating grease has better development.Low-noise lubricating grease conventional mostly both at home and abroad is polyureas and lithium soap grease.The mature production technology of lithium soap grease, applied widely, price is low; Polyurea grease is a class high-quality high temperature grease, there is much excellent character, as good anti-oxidative stability, mechanical stability and colloid stability, there is higher dropping point, not easily soften under high temperature, and there is wider use temperature scope and longer work-ing life, be described as one of promising lubricating grease kind of 21st century most.
By consulting of domestic and international patent and document, find the good polyurea grease of anti-acoustic capability, as patent CN1580211A relates to a kind of preparation method's [patent documentation 1] of low noise polyurea grease, this preparation method adopts direct method production technique, the urea-base grease adopting this inventive method to prepare has stable vibration values, at short notice (10-20 second) just can detect and obtain vibration values data accurately, have obvious help to improving the production efficiency of bearing.For another example patent CN103525512A relates to a kind of high-temperature long life low noise compound lithium base grease and preparation method's [patent documentation 2], and the method adopts direct method to prepare lithium soap grease, adopts the vibrations decibel value of this lubricating grease to reach about 25.
Patent documentation 1: Yao Lidan, Yang Haining, Guo Liyang. the preparation method of low-noise urea-base grease, CN1978601 [P] .2007-06-13.
Patent documentation 2: Sun Yi, Liu Jianlong, Liu Yachun, Feng Qiang. a kind of high-temperature long life low noise compound lithium base grease and preparation method, CN103525512A [P] .2014-01-22.
But this lubricating grease anti-acoustic capability described in two sections of patents is not ideal enough, there is the motor of business automation equipment and household electrical appliance and the problem such as low vibration bearing noise is excessive.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of bearing vibration value less and stable.This product, except being suitable for low vibration bearing, is equally also applicable in the motor of business automation equipment and household electrical appliance.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of low noise polyurea grease, counts by weight, is made up of the oxy-compound of the base oil of 85-90 part, the polyurea thickening agent of 8-15 part and 1-4 part.
As preferably; described oxy-compound is four (3; 5-di-t-butyl-4-hydroxyl) phenylpropionic acid pentaerythritol ester, 3-(3; 5-di-tert-butyl-hydroxy phenyl) propionic acid Octadecane alcohol ester, N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine, 1; 3; 5-trimethylammonium-2; 4; one or both mixing in 6-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) benzene, β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid isooctyl alcohol ester.
As preferably, in above-mentioned low noise polyurea grease, described polyurea thickening agent is one or both mixing in allophanamide viscosifying agent or four urea viscosifying agents.
As preferably, in above-mentioned low noise polyurea grease, described base oil is one or more mixing in poly-a alkene, 1,2-phthalic acid dinonyl, polyol ester, tetramethylolmethane four pelargonate, the different margarate of tetramethylolmethane four.
The preparation method of above-mentioned low noise polyurea grease, comprise the steps: to carry out pre-treatment to base oil, then polyurea thickening agent and base oil are mixed, heated mixt material is to 150-190 DEG C, be cooled to 120-150 DEG C under room temperature, add oxy-compound, continue to be cooled to room temperature, through lubricating grease aftertreatment, grind to form fat.
As preferably, in above-mentioned preparation method, described pretreatment process be filter, one or more in suction filtration or centrifugation, remove the impurity particle in base oil.
As preferably, in above-mentioned preparation method, heated mixt material stirs 120-240 minute to constant temperature after 150-190 DEG C.
As preferably, in above-mentioned preparation method, described lubricating grease aftertreatment is through 500 orders, 625 orders, 800 orders or 1250 object screen filtration 3-5 time by lubricating grease.
Compared with prior art, the present invention has following beneficial effect: the polyurea grease adopting the inventive method to prepare has better and stable vibration values, thus reducing the motor of business automation equipment and household electrical appliance and the level of noise of low vibration bearing, this product has obvious impact to noise reduction.
Embodiment
Below by embodiment, the invention will be further elaborated.
The present invention adopts the anti-acoustic capability of following various experimental technique to polyurea grease to evaluate, and NSK6203 used by its centre bearer, S0910-III bear vibration tester, the testing method (GB/T269-91) of cone penetration.
[embodiment 1 ~ 4]
According to the parts by weight in table 1, take the base oil of aequum, polyurea thickening agent heated and stirred respectively to 150-175 DEG C, thermostatically heating 120-240 minute, stop heating room temperature to be cooled to 140 DEG C and add oxy-compound, stirring is cooled to 60-80 DEG C, carries out screen filtration to lubricating grease, continues to be cooled to room temperature, grind three times with three-roller, obtain low noise polyurea grease.The kind of each component and consumption in lubricating grease, specifically in table 1.
Table 1
Embodiment 5
To [embodiment 1 ~ 4] cone penetration, bearing vibration value is tested, and test-results is in table 2.
Lubricating grease (each 1 of domestic, foreign brand name) that is that be usually used in household electrical appliances to commercially available 2 kinds or office equipment: home brands lubricating grease 1 and foreign brand name lubricating grease 2, bearing vibration value, cone penetration (GB/T269-91) is tested, and test-results is in table 2.
Table 2
| Embodiment | Cone penetration | Consistency grade | Bearing vibration value |
| 1 | 261.4 | 2# | 28.0dB |
| 2 | 258.6 | 2# | 28.3dB |
| 3 | 279.7 | 2# | 28.5dB |
| 4 | 274.4 | 2# | 28.5dB |
| Comparative example 1 | 284.6 | 2# | 32.0dB |
| Comparative example 2 | 292.5 | 2# | 30.5dB |
Claims (8)
1. a low noise polyurea grease, is characterized in that, counts by weight, is made up of the oxy-compound of the base oil of 85-90 part, the polyurea thickening agent of 8-15 part and 1-4 part.
2. low noise polyurea grease according to claim 1; it is characterized in that; described oxy-compound is four (3; 5-di-t-butyl-4-hydroxyl) phenylpropionic acid pentaerythritol ester, 3-(3; 5-di-tert-butyl-hydroxy phenyl) propionic acid Octadecane alcohol ester, N; N'-pair-(3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl) hexanediamine, 1; 3; 5-trimethylammonium-2,4,6-tri-(3; 5-di-tert-butyl-4-hydroxyl benzyl) benzene, one or both mixing in β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid isooctyl alcohol ester.
3. low noise polyurea grease according to claim 1, is characterized in that, described polyurea thickening agent is one or both mixing in allophanamide viscosifying agent or four urea viscosifying agents.
4. low noise polyurea grease according to claim 1, is characterized in that, described base oil is one or more mixing in poly-a alkene, 1,2-phthalic acid dinonyl, polyol ester, tetramethylolmethane four pelargonate, the different margarate of tetramethylolmethane four.
5. the preparation method of low noise polyurea grease described in claim 1, it is characterized in that comprising the steps: to carry out pre-treatment to base oil, then polyurea thickening agent and base oil are mixed, heated mixt material is to 150-190 DEG C, be cooled to 120-150 DEG C under room temperature, add oxy-compound, continue to be cooled to room temperature, through lubricating grease aftertreatment, grind to form fat.
6. preparation method according to claim 5, is characterized in that, described pretreatment process be filter, one or more in suction filtration or centrifugation, remove the impurity particle in base oil.
7. preparation method according to claim 5, is characterized in that, heated mixt material stirs 120-240 minute to constant temperature after 150-190 DEG C.
8. preparation method according to claim 5, is characterized in that, described lubricating grease aftertreatment is through 500 orders, 625 orders, 800 orders or 1250 object screen filtration 3-5 time by lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510863549.8A CN105419919A (en) | 2015-11-30 | 2015-11-30 | Low-noise polyurea lubricating grease and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510863549.8A CN105419919A (en) | 2015-11-30 | 2015-11-30 | Low-noise polyurea lubricating grease and preparation method thereof |
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| CN105419919A true CN105419919A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510863549.8A Pending CN105419919A (en) | 2015-11-30 | 2015-11-30 | Low-noise polyurea lubricating grease and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497637A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of automobile steering device bearing grease composition and preparation method |
| CN112521998A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Low-noise polyurea lubricating grease composition and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012015962A2 (en) * | 2010-07-30 | 2012-02-02 | Chevron U.S.A. Inc. | Method of preparing greases |
| CN104531263A (en) * | 2015-01-19 | 2015-04-22 | 中山大学 | Damping and noise-reducing composite material and preparation method and application thereof |
| CN105038914A (en) * | 2015-06-30 | 2015-11-11 | 上海禾泰特种润滑科技股份有限公司 | Gearbox lubricating agent composition and preparation method thereof |
-
2015
- 2015-11-30 CN CN201510863549.8A patent/CN105419919A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012015962A2 (en) * | 2010-07-30 | 2012-02-02 | Chevron U.S.A. Inc. | Method of preparing greases |
| CN104531263A (en) * | 2015-01-19 | 2015-04-22 | 中山大学 | Damping and noise-reducing composite material and preparation method and application thereof |
| CN105038914A (en) * | 2015-06-30 | 2015-11-11 | 上海禾泰特种润滑科技股份有限公司 | Gearbox lubricating agent composition and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 朱廷彬: "《润滑脂技术大全》", 31 October 2009, 中国石化出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106497637A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of automobile steering device bearing grease composition and preparation method |
| CN112521998A (en) * | 2019-09-17 | 2021-03-19 | 中国石油化工股份有限公司 | Low-noise polyurea lubricating grease composition and preparation method thereof |
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Application publication date: 20160323 |
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