CN104357193A - Lubricating grease composition - Google Patents
Lubricating grease composition Download PDFInfo
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- CN104357193A CN104357193A CN201410535154.0A CN201410535154A CN104357193A CN 104357193 A CN104357193 A CN 104357193A CN 201410535154 A CN201410535154 A CN 201410535154A CN 104357193 A CN104357193 A CN 104357193A
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Abstract
The invention discloses lubricating grease composition. Lubricating grease consists of raw materials in parts by weight as follows: 15-22 parts of a thickening agent, 70-85 parts of base oil and 2-4 parts of an additive, wherein the thickening agent is a mixture of polytetrafluoroethylene, modified silica gel and paraffin; the base oil is a mixture of silicone oil, peanut oil and castor oil; the additive is a mixture of molybdenum disulfide, diethanolamine, vaseline and polyimide. According to the lubricating grease, the reasonable raw material ratio is selected, the lubricating grease is good in high temperature performance, and the polytetrafluoroethylene, the modified silica gel and the paraffin are taken as the thickening agent, so that the change of the consistence of the lubricating grease is small under the condition of temperature change, and the lubricating grease can be used at the high temperature; the molybdenum disulfide, the diethanolamine, the vaseline and the polyimide are added, so that the high temperature resistance of the lubricating grease is improved as well, and the lubricating grease cannot soften at the high temperature.
Description
Technical field
The present invention relates to a kind of grease composition, belong to industrial chemical technical field.
Background technology
Lubricating grease is dispersed in by one or more viscosifying agents the series lubricant agent with non-newtonian flow body characteristics between semi-fluid to solid obtained in one or more liquid lubricants.Grease base eigen has certain kenel, and be easy to attachment, mobility is lower than corresponding base oil.Lubricating grease is used for the friction portion of machinery, plays lubrication and sealing function.
The feature of lubricating grease itself is variation with temperature, grease consistency changes greatly, particularly high temperature grease, although have higher dropping point (dropping point is greater than 300 DEG C), but along with the rising lubricating grease deliquescing of temperature is run off or hardening coking, lose lubrication.High temperature grease general at present has composite aluminum base base grease and urea-base grease usually, wherein there is deliquescing leakage (generally deliquescing be obvious more than 120 DEG C in composite aluminum base grease high temperature, there is leakage), cause equipment lubrication to lose efficacy; And urea-base grease; high temperature occurs that sclerosis is (according to different areidofats; its stiffening temperature is different; the general phenomenon occurring sclerosis 120 ~ 150 DEG C time); and along with the rising of temperature, hardening phenomenon is more obvious, usually causes the stuck of running gear in high temperature operation process; even cause running gear to be sintered together, cause the shutdown of equipment.General lubricating grease is difficult to the lubrication needs meeting heavy loading equipment, is easy to cause lubrication failure.
Summary of the invention
The technical problem solved: the problem that lubricating grease high-temperature lost efficacy.
Technical scheme of the present invention is as follows:
A kind of grease composition, be made up of viscosifying agent, base oil and additive, each raw material is with weight parts, and viscosifying agent is 15-22 part, base oil is 70-85 part, additive is 2-4 part; Described viscosifying agent is the mixture of tetrafluoroethylene, modified silica-gel and paraffin, and described base oil is the mixture of silicone oil, peanut oil and Viscotrol C, and described additive is the mixture of curing key, diethanolamine, Vaseline and polyimide.
Described viscosifying agent, with weight parts, is made up of tetrafluoroethylene 16-24 part, modified silica-gel 25-35 part and paraffin 25-35 part.
The weight ratio of described modified silica-gel and paraffin is 1:1.
Described modified silica-gel is obtained by following steps: by mass concentration be the sodium silicate solution of 25-36% under temperature is 40-50 DEG C of condition with sulfuric acid reaction 50-60min, after adding fibrin reaction 15-25min, again add sulfuric acid reaction 60-80min, after overaging, washing and drying, obtain modified silica-gel.
Described base oil, with weight parts, is made up of silicone oil 30-40 part, peanut oil 8-12 part and Viscotrol C 16-24 part.
The weight ratio of described peanut oil and Viscotrol C is 1:2.
Described additive with weight parts, by curing key 10-15 part, diethanolamine 12-18 part, Vaseline 4-9 part and polyimide 16-22 part.
Beneficial effect: lubricating grease of the present invention has selected rational proportioning raw materials, there is good high-temperature behavior, with tetrafluoroethylene, modified silica-gel and paraffin for viscosifying agent, the change that grease consistency is occurred under the condition of temperature change is little, can meet the use of high temperature; Improve the resistance to elevated temperatures of lubricating grease by adding curing key, diethanolamine, Vaseline and polyimide equally, can not soften under the high temperature conditions.
Lubricating grease of the present invention viscosity at 100 DEG C is 800-850Pa*S, and cone penetration (0.1mm) is 75-85, and copper sheet is placed in lubricating grease, redgreen or black change under 100 DEG C of conditions, dropping point is 200-250 DEG C, meets naked light and does not burn, meet the high temperature lubricating requirement of 400 DEG C.
Embodiment
Embodiment 1.
In the present embodiment, a kind of grease composition, is made up of viscosifying agent, base oil and additive, and each raw material is with weight parts, and viscosifying agent is 15 parts, base oil is 85 parts, additive is 2 parts; Described viscosifying agent, with weight parts, is made up of tetrafluoroethylene 24 parts, modified silica-gel 25 parts and 25 parts, paraffin.Described base oil, with weight parts, is made up of silicone oil 40 parts, peanut oil 8 parts and Viscotrol C 16 parts.Described additive with weight parts, by 10 parts, curing key, diethanolamine 12 parts, 9 parts, Vaseline and polyimide 16 parts.
Wherein, described modified silica-gel is obtained by following steps: by mass concentration be 36% sodium silicate solution under temperature is 40 DEG C of conditions with sulfuric acid reaction 60min, after adding fibrin reaction 15min, again add sulfuric acid reaction 80min, after overaging, washing and drying, obtain modified silica-gel.
The present embodiment, lubricating grease viscosity at 100 DEG C is 800Pa*S, and cone penetration (0.1mm) is 75, copper sheet is placed in lubricating grease, redgreen or black change under 100 DEG C of conditions, and dropping point is 250 DEG C, meet naked light not burn, meet the high temperature lubricating requirement of 400 DEG C.
Embodiment 2.
In the present embodiment, a kind of grease composition, is made up of viscosifying agent, base oil and additive, and each raw material is with weight parts, and viscosifying agent is 22 parts, base oil is 70 parts, additive is 4 parts; Described viscosifying agent, with weight parts, is made up of tetrafluoroethylene 16 parts, modified silica-gel 35 parts and 35 parts, paraffin.Described base oil, with weight parts, is made up of silicone oil 30 parts, peanut oil 12 parts and Viscotrol C 24 parts.Described additive with weight parts, by 15 parts, curing key, diethanolamine 18 parts, 4 parts, Vaseline and polyimide 22 parts.
Wherein, described modified silica-gel is obtained by following steps: by mass concentration be 25% sodium silicate solution under temperature is 50 DEG C of conditions with sulfuric acid reaction 50min, after adding fibrin reaction 25min, again add sulfuric acid reaction 60min, after overaging, washing and drying, obtain modified silica-gel.
Lubricating grease of the present invention viscosity at 100 DEG C is 850Pa*S, and cone penetration (0.1mm) is 85, and copper sheet is placed in lubricating grease, and redgreen or black change under 100 DEG C of conditions, dropping point is 250 DEG C, meets naked light and does not burn, meet the high temperature lubricating requirement of 400 DEG C.
Embodiment 3.
In the present embodiment, a kind of grease composition, is made up of viscosifying agent, base oil and additive, and each raw material is with weight parts, and viscosifying agent is 18 parts, base oil is 77 parts, additive is 3 parts; Described viscosifying agent is the mixture of tetrafluoroethylene, modified silica-gel and paraffin, and described base oil is the mixture of silicone oil, peanut oil and Viscotrol C, and described additive is the mixture of curing key, diethanolamine, Vaseline and polyimide.Described viscosifying agent, with weight parts, is made up of tetrafluoroethylene 21 parts, modified silica-gel 31 parts and 31 parts, paraffin.Described base oil, with weight parts, is made up of silicone oil 36 parts, peanut oil 8-12 part and Viscotrol C 16-24 part.Described additive with weight parts, by 13 parts, curing key, diethanolamine 15 parts, 7 parts, Vaseline and polyimide 17 parts.
Wherein, described modified silica-gel is obtained by following steps: by mass concentration be 32% sodium silicate solution under temperature is 50 DEG C of conditions with sulfuric acid reaction 60min, after adding fibrin reaction 25min, again add sulfuric acid reaction 80min, after overaging, washing and drying, obtain modified silica-gel.
Lubricating grease of the present invention viscosity at 100 DEG C is 830Pa*S, and cone penetration (0.1mm) is 75-85, and copper sheet is placed in lubricating grease, redgreen or black change under 100 DEG C of conditions, dropping point is 230 DEG C, meets naked light and does not burn, meet the high temperature lubricating requirement of 400 DEG C.
Claims (7)
1. a grease composition, is made up of viscosifying agent, base oil and additive, it is characterized in that: each raw material is with weight parts, and viscosifying agent is 15-22 part, base oil is 70-85 part, additive is 2-4 part; Described viscosifying agent is the mixture of tetrafluoroethylene, modified silica-gel and paraffin, and described base oil is the mixture of silicone oil, peanut oil and Viscotrol C, and described additive is the mixture of curing key, diethanolamine, Vaseline and polyimide.
2. a kind of grease composition according to claim 1, is characterized in that: described viscosifying agent, with weight parts, is made up of tetrafluoroethylene 16-24 part, modified silica-gel 25-35 part and paraffin 25-35 part.
3. a kind of grease composition according to claim 2, is characterized in that: the weight ratio of described modified silica-gel and paraffin is 1:1.
4. a kind of grease composition according to Claims 2 or 3, it is characterized in that: described modified silica-gel is obtained by following steps: by mass concentration be the sodium silicate solution of 25-36% under temperature is 40-50 DEG C of condition with sulfuric acid reaction 50-60min, after adding fibrin reaction 15-25min, again add sulfuric acid reaction 60-80min, after overaging, washing and drying, obtain modified silica-gel.
5. a kind of grease composition according to claim 1, is characterized in that: described base oil, with weight parts, is made up of silicone oil 30-40 part, peanut oil 8-12 part and Viscotrol C 16-24 part.
6. a kind of grease composition according to claim 4, is characterized in that: the weight ratio of described peanut oil and Viscotrol C is 1:2.
7. a kind of grease composition according to claim 1, is characterized in that: described additive, with weight parts, is made up of curing key 10-15 part, diethanolamine 12-18 part, Vaseline 4-9 part and polyimide 16-22 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535154.0A CN104357193A (en) | 2014-10-13 | 2014-10-13 | Lubricating grease composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535154.0A CN104357193A (en) | 2014-10-13 | 2014-10-13 | Lubricating grease composition |
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| Publication Number | Publication Date |
|---|---|
| CN104357193A true CN104357193A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410535154.0A Pending CN104357193A (en) | 2014-10-13 | 2014-10-13 | Lubricating grease composition |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946359A (en) * | 2015-06-15 | 2015-09-30 | 赵兰 | Lubricating oil for automobile gears and preparation method thereof |
| CN105296109A (en) * | 2015-10-29 | 2016-02-03 | 山东万友工业油脂有限公司 | Long-service-life high-temperature lubricating grease and preparation method thereof |
| CN108559588A (en) * | 2018-04-26 | 2018-09-21 | 合肥迪安医学检验所有限公司 | A kind of sample loading gun sealing lubrication agent based on mineral oil, starch |
| CN109135872A (en) * | 2018-08-01 | 2019-01-04 | 上海应用技术大学 | A kind of refractory seals polytetrafluoroethylene (PTFE) lubricating grease and preparation method thereof |
-
2014
- 2014-10-13 CN CN201410535154.0A patent/CN104357193A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946359A (en) * | 2015-06-15 | 2015-09-30 | 赵兰 | Lubricating oil for automobile gears and preparation method thereof |
| CN105296109A (en) * | 2015-10-29 | 2016-02-03 | 山东万友工业油脂有限公司 | Long-service-life high-temperature lubricating grease and preparation method thereof |
| CN105296109B (en) * | 2015-10-29 | 2018-07-27 | 山东万友工业油脂有限公司 | A kind of long-life high temperature lubricating grease and preparation method thereof |
| CN108559588A (en) * | 2018-04-26 | 2018-09-21 | 合肥迪安医学检验所有限公司 | A kind of sample loading gun sealing lubrication agent based on mineral oil, starch |
| CN109135872A (en) * | 2018-08-01 | 2019-01-04 | 上海应用技术大学 | A kind of refractory seals polytetrafluoroethylene (PTFE) lubricating grease and preparation method thereof |
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Application publication date: 20150218 |