CN102268319A - White lubricating grease composition and preparation method - Google Patents
White lubricating grease composition and preparation method Download PDFInfo
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- CN102268319A CN102268319A CN2011101899478A CN201110189947A CN102268319A CN 102268319 A CN102268319 A CN 102268319A CN 2011101899478 A CN2011101899478 A CN 2011101899478A CN 201110189947 A CN201110189947 A CN 201110189947A CN 102268319 A CN102268319 A CN 102268319A
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Abstract
The invention relates to a white lubricating grease composition and a preparation method. The white lubricating grease composition comprises stearic acid and/or dodecyl hydroxyl stearic acid serving as a thickening agent, white transparent mineral oil and/or synthetic oil serving as basic oil and additives. The preparation method comprises the following steps of: adding the thickening agent and a part of basic oil into a reaction kettle; stirring and heating to 185-205 DEG C; adding a part of basic oil to cool; continuously stirring; adding the rest of basic oil and stirring; cooling to be below 85 DEG C; and adding the additives and stirring. The composition is subjected to oil rolling three times through a three-roll machine to form a finished product and is canned. In the lubricating grease composition, by selecting the basic oil with proper viscosity, corresponding thickening agent and proper additive system and using a unique production process, white and fine appearance of the product and high protection performance are guaranteed, and the requirements of lubrication and protection of high-speed bearings, running bearings of mechanical industry, micro motor bearings, plastic speed reducers and gear transmission systems of electric toys as well as instruments and meters can be met.
Description
Technical field
The invention belongs to technical field of lubricating grease, particularly relate to a kind of white grease composition and preparation method.
Background technology
Lubricating grease belongs to the category of lubricant, form by many different componentss, each component is all given lubricating grease with different characteristics, and the ratio of each component and manufacturing process to capability of lubricating grease particularly outward appearance have direct influence, existing lubricating grease mostly is the even ointment of tawny.
Precision machine tool main shaft bearing and textile manufacturing machine bearing groundwork characteristics are as follows:
(1) speed height, the general vertical sliding surface bearing spindle of textile manufacturing machine rotating speed is about 10000r/min; Rolling vertical bearing spindle rotating speed is more than 20000r/min;
(2) load is little, generally loads about 20N, and some load is bigger;
(3) quick abrasion, work-ing life is shorter;
(4) big energy-consuming, the frictional power loss is big.
At the work characteristics of above mechanical means, institute is with lubricator required to have following characteristic:
(1) in order to keep the cleaning of fiber or yarn, stain do not occur, but require lubricant to have not dripping property and scrubbing character, easily remove yet even cloth or line are subjected to polluting.Simultaneously, require the lubricant usage quantity the least possible;
(2) because of lubricating grease does not resemble easy outflow the lubricating oil, and need not frequent oiling,, but want suitably still to throw away easily in the time of too much with the fat amount so the lubricating grease that textile manufacturing machine uses is more superior than lubricating oil;
(3) some textile manufacturing machine is to work under high temperature, high humidity environment, requires lubricant to have good water-fast and rustless property;
(4) for preventing unlikely influence dyeing when textiles contacts with lubricant, the lubricant of textile machinery is generally light, is preferably pure white.
(5), avoid causing fracture that textile machinery lubricating grease requires to have the characteristics of low moment because of the yarn pulling force increases for reducing power consumption.
The general all requirements of instrument and electronic toy micromachine bearing and lubrication equipments such as plastics speed reduction unit and gear train assembly have good wide temperature use range, have good shear stability, oilness, antirust barrier propterty, low volatility, suitable viscosity and tack, anti-oxidative stability, long storage stability, requirement such as nontoxic, inclusion-free.This kind equipment now more uses hydr ocarbon-based grease, but satisfies the lubricating requirement that working temperature is not higher than light load mechanical friction position under 45 ℃ of conditions only.
The user demand of comprehensive above lubrication equipment, determine that lubricating grease should possess following performance:
(1) the pure white exquisiteness of product appearance;
(2) lower startup and moving torque;
(3) stronger adsorptive power guarantees the barrier propterty of lubricating grease;
(4) excellent lubrication can reduce the fatigue wear of motor element.
Summary of the invention
The lubricating grease that the purpose of this invention is to provide the pure white exquisiteness of a kind of outward appearance, select suitable base oil and additive, guarantee the pure white exquisiteness of lubricating grease outward appearance, and assurance has good lubrication protection performance, make lubricating grease be well positioned to meet lubricating of high-speed bearing, textile manufacturing machine bearing and instrument and protection, particularly be well positioned to meet the service requirements of electronic toy micromachine and plastics speed reduction unit and Plastic Gear Transmission system.
Technology of the present invention is as follows:
A kind of white grease composition by the total weight percent of composition, comprises following component:
(1) viscosifying agent 5-28%;
(2) white basis oil 70-93%;
(3) additive 2-5%; Comprise: (a) arylamine class and/or phenol antioxidant 0-1%; (b) solid anti-wear agent 2-3%;
(c) triazole and/or Sulfonates rust-preventive agent 0-1%;
Viscosifying agent is one or more of lithium stearate or 12-hydroxy lithium stearate or 12-oxystearic acid complex lithium; 40 ℃ of kinematic viscosity of base oil are 5-100mm
2/ s.
The base oil of described composition is at least a in mineral oil or alkene synthetic oil PAO or the ester class oil.
Ester class oil in the base oil of described composition is for satisfying
Described composition is that arylamine class antioxidant is one or both of alkylated diphenylamine or diphenylamine derivatives or N-phenyl-a-naphthylamine.
Described composition is that phenolic antioxidant is 2, and 6-two-tertiary butyl-p-cresol or structure are
One or both of monocycle hindered phenol.
It is wherein a kind of that described composition is that the solid anti-wear agent is a particle diameter at the PTFE of 0.4-4 μ m or MCA.
Described composition is that rust-preventive agent is one or more of benzotriazole or derivatives thereof or alkaline dinonylnaphthalene sulfonic acid salt.
White grease preparation method of composition of the present invention joins viscosifying agent and part base oil (total amount 1/4～1/2) in the reactor, is stirred and heated to 185-205 ℃, add part base oil (total amount 1/5～1/3) cooling, continue to stir, add the surplus base oil, stir.Cool to below 85 ℃, add additive, stir; Composition goes out finished product after three-roller rolls oily three times canned.
40 ℃ of kinematic viscosity of described composition base oil are preferably 10-80mm
2/ s.
The viscosity index of described composition base oil is for being not less than 90.
The condensation point of described composition base oil is not higher than-15 ℃.
Described composition base oil mineral oil in fluid is technical grade and/or pharmaceutical grade slab oil.
The grease composition of this patent invention is by selecting the base oil of appropriate viscosity, select corresponding viscosifying agent, suitable additive system, adopt special production technique, guarantee the pure white exquisiteness of product appearance, and have the favorable protection performance, can satisfy the plastics speed reduction unit of high-speed bearing, the running of mechanical industry bearing, micromachine bearing and electronic toy and the lubricated and requirement of shelter of gear train assembly and instrument.
The base oil of grease composition of the present invention adopts SH/T 0168 test method, and numerical value novel phaneroplasm amount more is good more.Grease composition high-temperature behavior of the present invention comprises: (1) adopts SH/T 0325 test method, and test condition is 99 ℃, and it is good more that low more explanation oxidation stability falls in 100 hours pressure; (2) adopt SH/T 0331 test method,, investigated the Corrosion Protection of copper sheet in 3 hours under the condition at 100 ℃; Low-temperature performance adopts SH/T 0338 test method, and the bright low-temperature performance of novel is good more more for startup in the time of-30 ℃ and running moment; Shelf characteric is investigated, and adopts the IP121 test method, and at 40 ℃, the more for a short time storage stability that shows of quality change is good more under 42 hours conditions; Abrasion resistance adopts SH/T 0204 test method, and at 392N, under 60 minutes the condition, the four ball milling spot diameters bright lubricity of novel more are good more.
Embodiment
The present invention is further elaborated below by specific embodiment.
Described satisfied
The polyol-ester type oil of structure is pentaerythritol ester when n=0, as n=1 and R '
nBe C
2H
5The time be trihydroxymethylpropanyl ester.40 ℃ of kinematic viscosity of composition base oil are preferably 10-80mm
2/ s; Viscosity index is for being not less than 90; Condensation point is not higher than-15 ℃; The base oil mineral oil in fluid is technical grade and/or pharmaceutical grade slab oil.
Each embodiment and comparative example preparation method:
Embodiment 1
50 gram 12 oxystearic acids and 300 gram industrial white oils are put in the reactor, be heated to 80 degree, add lithium hydroxide aqueous solution and react, the lithium hydroxide add-on is 7.3 grams.Be heated to the saponification that picks up counting of 90-100 degree, to cool off in the 300 gram trihydroxymethylpropanyl ester class oil adding reactors after being warmed up to 205 degree after saponification finishes, temperature is controlled at the 150-170 degree, add 10 gram di-iso-octyldiphenylamines, continue to add 300 gram PAO and be cooled to 80 ℃, adding 10 gram benzotriazoles and 30 gram PTFE also stir.After temperature was reduced to 60 degree, composition is canned finished product after three-roller rolls oily three times.
Embodiment 2
280 gram stearic acid and 500 gram pharmaceutical grade white oils are put in the reactor, be heated to 80 degree, add lithium hydroxide aqueous solution and react, the lithium hydroxide add-on is 43.5 grams.Be heated to the saponification that picks up counting of 90-100 degree, to cool off in the 100 gram pentaerythritol esters oil adding reactors after being warmed up to 185 degree after saponification finishes, temperature is controlled at the 150-170 degree, continues to add 100 gram PAO and is cooled to 80 ℃, and adding 20 gram PTFE also stir.After temperature was reduced to 60 degree, composition is canned finished product after three-roller rolls oily three times.
Embodiment 3
80 gram 12-oxystearic acids and 20 gram stearic acid are put in the reactor jointly with 500 gram pharmaceutical grade white oils, be heated to 80 degree, add lithium hydroxide aqueous solution and react, the lithium hydroxide add-on is 15 to restrain.Be heated to the saponification that picks up counting of 90-100 degree, to cool off in the 200 gram industrial white oils adding reactors after being warmed up to 195 degree after saponification finishes, temperature is controlled at the 150-170 degree, add 5 gram di-iso-octyldiphenylamines and 5 gram monocycle hindered phenols, continue to add 150 gram industrial white oils and be cooled to 80 ℃, adding 10 gram benzotriazoles and 30 gram MCA also stir.After temperature was reduced to 60 degree, composition is canned finished product after three-roller rolls oily three times.
Embodiment 4
Put into 200 gram 12-oxystearic acid complex lithium and 500 gram PAO in the reactor jointly, to cool off in the 150 gram industrial white oils adding reactors after being heated with stirring to 205 degree, temperature is controlled at the 150-170 degree, add 5 gram pentanoic, continue to add 100 gram industrial white oils and be cooled to 80 ℃, add 5 grams 2,6-two-tertiary butyl-p-cresol and 10 gram dinonylnaphthalene sulfonic acid salt and 30 gram MCA also stir cooling.After temperature was reduced to 60 degree, composition is canned finished product after three-roller rolls oily three times.
Embodiment 5
Restraining 12-oxystearic acids and 50 gram stearic acid and 400 gram industrial white oils with 100 puts in the reactor jointly, to cool off in the 200 gram trihydroxymethylpropanyl esters adding reactors after being heated with stirring to 195 degree, temperature is controlled at the 150-170 degree, add 5 gram di-iso-octyldiphenylamines, continue to add 100 gram trihydroxymethylpropanyl esters and be cooled to 80 ℃, add 5 grams 2,6-two-tertiary butyl-p-cresol and 10 gram benzotriazoles and 30 gram PTFE also stir.After temperature was reduced to 60 degree, composition is canned finished product after three-roller rolls oily three times.
Embodiment 1-5 component concentration sees Table 1.
Table 1 embodiment 1-5 component concentration (per-cent)
Embodiment 1-5 performance data sees Table 2.
Table 2 embodiment 1-5 performance data
Comparative example 1 and comparative example 2:
Comparative example 1, comparative example 2 performance datas see Table 3
Table 3 comparative example 1 and comparative example 2 performance datas
By table 2, table 3 data as can be seen, lubricating grease outward appearance of the present invention is the fine and smooth evenly ointment of white, and has good low-temperature operability and lubricity.
The lab work of present embodiment example is the Common item of the lubricating grease of chemical examination just, has the versatility that general lubricating grease has so that guarantee lubricating grease.
Can draw as drawing a conclusion from above case: the lubricating grease of (1) this patent invention has the outward appearance of pure white exquisiteness, can well satisfy the requirement of part client to properties such as outward appearances; (2) lubricating grease of this patent invention has excellent high-temperature stability and cold-starting behaviour in service, can guarantee that the lubricant housings obtains good lubrication under high low temperature condition; (3) lubricating grease of this patent invention has good lubricating property, and this can reduce startup and the running moment of using parts, cuts down the consumption of energy, and save energy can be protected the operation of equipment and the maintenance reliability of raising equipment simultaneously; (4) lubricating grease of this patent invention has better comprehensive performance simultaneously, guarantees the lubricating grease versatility.Comprehensive above performance has fully proved base oil in this patent lubricating grease prescription and viscosifying agent reasonably mates, the selection of additive and lubricating grease preparation method's reasonableness.
The grease composition and the preparation method of the pure white exquisiteness of a kind of outward appearance that the present invention proposes, be described by preferred embodiment, person skilled obviously can be in not breaking away from content of the present invention, spirit and scope to component as herein described with method is changed or suitably change and combination, realize the technology of the present invention.Special needs to be pointed out is, the replacement that all are similar and change apparent to those skilled in the artly, they are regarded as being included in spirit of the present invention, scope and the content.
Claims (8)
1. white grease composition by the total weight percent of composition, comprises following component:
(1) viscosifying agent 5-28%;
(2) white basis oil 70-93%;
(3) additive 2-5%; Comprise: (a) arylamine class and/or phenol antioxidant 0-1%; (b) solid anti-wear agent 2-3%; (c) triazole and/or Sulfonates rust-preventive agent 0-1%;
Viscosifying agent is one or more of lithium stearate or 12-hydroxy lithium stearate or 12-oxystearic acid complex lithium; 40 ℃ of kinematic viscosity of base oil are 5-100mm
2/ s.
2. composition according to claim 1 is characterized in that described base oil is at least a in mineral oil or alkene synthetic oil or the ester class oil.
3. composition according to claim 2 is characterized in that the ester class oil in the described base oil is to satisfy
N is the polyol ester of 0 or 1 structure.
4. composition according to claim 1 is characterized in that described arylamine class antioxidant is one or both of alkylated diphenylamine or diphenylamine derivatives or N-phenyl-a-naphthylamine.
5. composition according to claim 1 is characterized in that described phenolic antioxidant is 2, and 6-two-tertiary butyl-p-cresol or structure are
One or both of monocycle hindered phenol.
6. composition according to claim 1, what it is characterized in that described solid anti-wear agent is a particle diameter at the PTFE of 0.4-4 μ m or MCA is wherein a kind of.
7. composition according to claim 1 is characterized in that described rust-preventive agent is one or more of benzotriazole or derivatives thereof or alkaline dinonylnaphthalene sulfonic acid salt.
8. the white grease preparation method of composition of claim 1 is characterized in that: 1/4～1/2 of viscosifying agent and base oil total amount joined in the reactor, be stirred and heated to 185-205 ℃, 1/5～1/3 cooling that adds the base oil total amount, continue to stir, add the surplus base oil, stir; Cool to below 85 ℃, add additive, stir; Composition goes out finished product after three-roller rolls oily three times canned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101899478A CN102268319A (en) | 2011-07-07 | 2011-07-07 | White lubricating grease composition and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101899478A CN102268319A (en) | 2011-07-07 | 2011-07-07 | White lubricating grease composition and preparation method |
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| CN102268319A true CN102268319A (en) | 2011-12-07 |
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ID=45050784
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017630A (en) * | 2013-03-01 | 2014-09-03 | 协同油脂株式会社 | A lubricating grease composition for a sewing machine and the sewing machine using the lubricating grease composition at lubricating positions |
| CN105950267A (en) * | 2016-05-23 | 2016-09-21 | 中国铁道科学研究院金属及化学研究所 | Environment-friendly wheel and track lubricating grease and method for preparing same |
| CN106149371A (en) * | 2016-06-29 | 2016-11-23 | 绍兴市柯桥区钱清通航轻纺辅料厂 | A kind of weaving white jade frost grease and preparation method thereof |
| CN106497652A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of robot decelerator lubricant composition and preparation method |
| CN110157525A (en) * | 2019-06-13 | 2019-08-23 | 安徽和欣润滑科技有限公司 | A kind of composition and preparation method of motor turning stacked switch lubricating grease |
| CN111286387A (en) * | 2020-02-26 | 2020-06-16 | 上海果石实业(集团)有限公司 | Damping lubricating grease for furniture sliding rail with long service life and preparation method thereof |
| CN111979018A (en) * | 2020-09-24 | 2020-11-24 | 蚌埠飞宇轴承有限公司 | Preparation method of lubricating grease for automobile bearing |
| CN112646652A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Lubricating grease for textile machinery and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017630A (en) * | 2013-03-01 | 2014-09-03 | 协同油脂株式会社 | A lubricating grease composition for a sewing machine and the sewing machine using the lubricating grease composition at lubricating positions |
| CN105950267A (en) * | 2016-05-23 | 2016-09-21 | 中国铁道科学研究院金属及化学研究所 | Environment-friendly wheel and track lubricating grease and method for preparing same |
| CN105950267B (en) * | 2016-05-23 | 2019-01-22 | 中国铁道科学研究院金属及化学研究所 | A kind of environment-friendly type wheel-rail lubricating rouge and preparation method thereof |
| CN106149371A (en) * | 2016-06-29 | 2016-11-23 | 绍兴市柯桥区钱清通航轻纺辅料厂 | A kind of weaving white jade frost grease and preparation method thereof |
| CN106497652A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of robot decelerator lubricant composition and preparation method |
| CN110157525A (en) * | 2019-06-13 | 2019-08-23 | 安徽和欣润滑科技有限公司 | A kind of composition and preparation method of motor turning stacked switch lubricating grease |
| CN112646652A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Lubricating grease for textile machinery and preparation method thereof |
| CN111286387A (en) * | 2020-02-26 | 2020-06-16 | 上海果石实业(集团)有限公司 | Damping lubricating grease for furniture sliding rail with long service life and preparation method thereof |
| CN111286387B (en) * | 2020-02-26 | 2022-02-01 | 上海果石实业(集团)有限公司 | Damping lubricating grease for furniture sliding rail with long service life and preparation method thereof |
| CN111979018A (en) * | 2020-09-24 | 2020-11-24 | 蚌埠飞宇轴承有限公司 | Preparation method of lubricating grease for automobile bearing |
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Application publication date: 20111207 |