CN100443575C - Protective grease, and its use and preparing method - Google Patents
Protective grease, and its use and preparing method Download PDFInfo
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- CN100443575C CN100443575C CNB2005101260558A CN200510126055A CN100443575C CN 100443575 C CN100443575 C CN 100443575C CN B2005101260558 A CNB2005101260558 A CN B2005101260558A CN 200510126055 A CN200510126055 A CN 200510126055A CN 100443575 C CN100443575 C CN 100443575C
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Abstract
The invention provides preservative lubricating oil with the good resistance of low temperature and the adhesive of the base material. It includes: 35-82% of PAO with the viscidity 25-55 sq mm/s in 100 degree C, 8-15% aluminum stearate soap and 10-50% polyisobutylene with molecular weight of 2, 000-2,500. The invention also provides the preparing method and the application as the repellent.
Description
Technical field
The present invention relates to a kind of protective grease, its application and preparation method.
Background technology
No matter aircraft parks still distribution aloft on the airport, all might run into rainwash; Equally, other vehicles and be located at outdoor equipment and also may invade and cause corrosion because of rainwater.Protective grease is used to protect exposed part to exempt from the rainwater intrusion, avoid a kind of product of corrosive exactly.
In the prior art, with regard to the protective grease that is used for aircraft, commonly used is 3# warship lubricating grease.The 3# warship adopts stearic acid aluminium soap multiviscosisty high viscosity mineral lubricating oils with lubricating grease, and adds a large amount of pitches and make, and outward appearance is black, unusual thickness, and water resistance is good, but poor performance at low temperatures, 10 ℃ of similar viscosities are 1900Pa.s, in the winter time can't be in the open air use.Use occasion comprises outdoor environment in view of protective grease, and therefore, protective grease should have good low-temperature performance; Simultaneously, as protective grease, must have the binding property (the anti-water performance of flushing that shows as etc.) between good and the base material.
U.S. Pat P 4,156, and 655 disclosed protective greases are salt water resistance corrosive lubricating grease, and composition is that viscosifying agent is a compound lithium soap, and additive is naphthenate and quaternary ammonium salt.This lubricating grease is mainly used in lubricated and anti-sea-water corrosion, for example is used for bearing lubrication, and is outstanding in bearing rust prevention test performance, but because of not adding pitch or viscosity additive etc., anti-water performance of flushing is poor, causes barrier propterty poor.
U.S. Pat P 5,110,489 and USP 5,110,490 disclosed lubricating grease be water-resistant oleosol, composition is that viscosifying agent is a lithium soap, additive is the ethylene propylene copolymer that contains amine functional group, its anti-water performance of flushing data are preferably 20%.
U.S. Pat P 4,075,112 disclosed grease compositions are: viscosifying agent is the stearic acid aluminium soap, base oil is a mineral lubricating oils, wherein having added 0.2% molecular weight is 100,000 polyisobutene and the molecular weight of 25-98% are 300-2,500 polyisobutene, but its low-temperature performance is relatively poor.
Therefore, still need the good protective grease of binding property between the good and base material of a kind of low-temperature performance.
Summary of the invention
The invention provides the good protective grease of binding property between the good and base material of a kind of low-temperature performance, is benchmark with weight, and viscosity is 25-55mm during by 35-82%100 ℃
2The poly-a-olefin oil of/s (PAO), 8～15% stearic acid aluminium soap, and 10～50% molecular weight is 2,000～2,500 polyisobutene composition.
The present invention also provides a kind of method for preparing protective grease, comprises aluminum stearate and the base oil that accounts for base oil total amount 60-80% are heated to 175-185 ℃ together, adds polyisobutene then, stirs; After stopping heating, add the base oil of remainder, stir, leave standstill cooling then, treat that temperature drops to after 100 ℃, grinds to form finished product.
The present invention also provides the application of a kind of protective grease as protective agent.
Embodiment
Protective grease of the present invention during by 35-82%100 ℃ viscosity be 25-55mm
2The poly-a-olefin oil of/s (PAO), 8～15% stearic acid aluminium soap, and 10～50% molecular weight is 2,000～2,500 polyisobutene composition.
In the lubricating grease of the present invention, use poly-a-olefin oil as base oil, poly-a-olefin oil viscosity in the time of 100 ℃ is 25-55mm
2/ s, preferred 30-50mm
2/ s.The content of poly-a-olefin oil in protective grease of the present invention is 35-82%, is preferably 45-75%, more preferably 50-73%.Poly-a-olefin oil itself can known method prepare, and also can buy.
Protective grease of the present invention contains 8～15% stearic acid aluminium soaps as viscosifying agent.There is no particular limitation for the specification requirement of stearic acid aluminium soap, can also can be buied by known method preparation.
It is that 2,000～2,500 polyisobutene is as additive that protective grease of the present invention contains 10～50% molecular weight.The content of polyisobutene in protective grease of the present invention is preferably 15-40%.Polyisobutene can also can be buied by known method preparation.
Satisfying total amount is that the various scopes of each component concentration in the protective grease of the present invention comprise preferred, preferred scope, all can arbitrary combination under 100% the prerequisite.
The preparation method of protective grease of the present invention comprises:
With aluminum stearate with account for base oil total amount 60-80%, the base oil of preferred 67-72% is heated to 175-185 ℃ together, preferably is heated to 180 ℃, adds polyisobutene then, stirs; After stopping heating, add the base oil of remainder, stir, leave standstill cooling then, treat that temperature drops to after 100 ℃, grinds to form finished product.
Lubricating grease of the present invention has good anti-water performance of flushing and good low-temperature performance.Anti-water spray test-results is washed out weight＜2.0%; 0 ℃ of similar viscosity is not for being higher than 1000Pa.s.
In view of lubricating grease of the present invention has good anti-water performance of flushing and good low-temperature performance; therefore; this lubricating grease can be used to protect the exposed part of the vehicles and outdoor equipment, and for example the material components of aircraft, weapons, boats and ships and building trade makes them avoid the erosion of rainwater.For this reason, the present invention also provides the application of protective grease of the present invention as protective agent.
Embodiment
The following example is used to illustrate the present invention, but the invention is not restricted to these embodiment.
Embodiment 1
With 120g stearic acid aluminium soap and 470g poly-a-olefin oil (100 ℃ of viscosity 40mm
2/ s) add in the still, when stirring heating, temperature rose to 180 ℃, adding 300g molecular weight was 2300 polyisobutene, stirs, and stops heating, adds 210g poly-a-olefin oil (100 ℃ of viscosity 40mm
2/ s), the back quiet cooling of putting that stirs treats that temperature drops to after 100 ℃, grinds to form lubricating grease.
Adopt GB/T269, GB/T4929, GB/T7325, GB/T5018, SH/T0643, SH/T0048 to detect to resulting product, the results are shown in Table 1.
Embodiment 2
With 90g stearic acid aluminium soap and 357g poly-a-olefin oil (100 ℃ of viscosity 50mm
2/ s) add in the still, when stirring heating, temperature rose to 180 ℃, adding 400g molecular weight was 2000 polyisobutene, stirs, and stops heating, adds 153g poly-a-olefin oil (100 ℃ of viscosity 50mm
2/ s), the back quiet cooling of putting that stirs treats that temperature drops to after 100 ℃, grinds to form lubricating grease.
The product physicochemical property sees Table 1.
Embodiment 3
With 140g stearic acid aluminium soap and 497g poly-a-olefin oil (100 ℃ of viscosity 30mm
2/ s) add in the still, when stirring heating, temperature rose to 180 ℃, adding 150g molecular weight was 2500 polyisobutene, stirs, and stops heating, adds 213g poly-a-olefin oil (100 ℃ of viscosity 30mm
2/ s), the back quiet cooling of putting that stirs treats that temperature drops to after 100 ℃, grinds to form lubricating grease.
The product physicochemical property sees Table 1.
Comparative example 1
130g stearic acid aluminium soap and 370g high viscosity mineral lubricating oils (150BS bright stock) are added in the still, when stirring heating, temperature rise to 180 ℃, add 500g90 pitch, stir, stop heating, quietly put cooling, treat that temperature drops to after 100 ℃, grinds to form lubricating grease.
The product physicochemical property sees Table 1.
Table 1 product physicochemical property
| Experimental project | Example 1 | Example 2 | Example 3 | Comparative example 1 | Experimental technique |
| 1/4 cone penetration (0.1mm) | 58 | 62 | 55 | 57 | GB/T269 |
| Dropping point (℃) | 115 | 113 | 119 | 117 | GB/T4929 |
| Corrosion (100 ℃, 24h, T 2Copper sheet) | Qualified | Qualified | Qualified | Qualified | GB/T7325 |
| Rust-preventing characteristic (52 ℃, 48h, level) | 1 | 1 | 1 | 2 | GB/T5018 |
| Anti-water spray (weight loss %) | ＜2.0 | ＜2.0 | ＜2.0 | ＜2.0 | SH/T0643 |
| Similar viscosity (0 ℃, Pa.s) | 510 | 690 | 480 | 1900 (10℃) | SH/T0048 |
Claims (9)
1. protective grease, viscosity is 25-55mm during by 35-82%100 ℃
2The poly-a-olefin oil of/s (PAO), 8～15% stearic acid aluminium soap, and 10～50% molecular weight is 2,000～2,500 polyisobutene composition.
2. according to the protective grease of claim 1, wherein the viscosity of poly-a-olefin oil in the time of 100 ℃ is 30-50mm
2/ s.
3. according to the protective grease of claim 1, wherein contain the poly-a-olefin oil of 45-75%.
4. according to the protective grease of claim 3, wherein contain the poly-a-olefin oil of 50-73%.
5. according to the protective grease of claim 3, wherein contain the polyisobutene of 15-40%.
6. a method for preparing protective grease comprises aluminum stearate and the base oil that accounts for base oil total amount 60-80% are heated to 175-185 ℃ together, adds polyisobutene then, stirs; After stopping heating, add the base oil of remainder, stir, leave standstill cooling then, treat that temperature drops to after 100 ℃, grinds to form finished product.
7. according to the method for claim 6, wherein aluminum stearate and the base oil that accounts for base oil total amount 67-72% are heated to 175-185 ℃ together.
8. according to the method for claim 6, wherein aluminum stearate and the base oil that accounts for base oil total amount 60-70% are heated to 180 ℃ together.
9. the protective grease of claim 1 is as the application of protective agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101260558A CN100443575C (en) | 2005-11-30 | 2005-11-30 | Protective grease, and its use and preparing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101260558A CN100443575C (en) | 2005-11-30 | 2005-11-30 | Protective grease, and its use and preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1978599A CN1978599A (en) | 2007-06-13 |
| CN100443575C true CN100443575C (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101260558A Active CN100443575C (en) | 2005-11-30 | 2005-11-30 | Protective grease, and its use and preparing method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5534386B2 (en) | 2009-02-13 | 2014-06-25 | 協同油脂株式会社 | Silencer grease composition |
| FR2968670B1 (en) * | 2010-12-13 | 2013-01-04 | Total Raffinage Marketing | FAT COMPOSITION |
| CN102417842B (en) * | 2011-10-13 | 2013-11-06 | 浙江阿克希龙舜华铝塑业有限公司 | Lubricating oil and lipstick tube middle beam core using same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075112A (en) * | 1975-01-28 | 1978-02-21 | Labofina S.A. | Grease composition |
| US4156655A (en) * | 1978-01-30 | 1979-05-29 | Exxon Research & Engineering Co. | Grease composition resistant to salt water corrosion |
-
2005
- 2005-11-30 CN CNB2005101260558A patent/CN100443575C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075112A (en) * | 1975-01-28 | 1978-02-21 | Labofina S.A. | Grease composition |
| US4156655A (en) * | 1978-01-30 | 1979-05-29 | Exxon Research & Engineering Co. | Grease composition resistant to salt water corrosion |
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| Publication number | Publication date |
|---|---|
| CN1978599A (en) | 2007-06-13 |
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