CN107267254A - A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry - Google Patents
A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry Download PDFInfo
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- CN107267254A CN107267254A CN201710344940.6A CN201710344940A CN107267254A CN 107267254 A CN107267254 A CN 107267254A CN 201710344940 A CN201710344940 A CN 201710344940A CN 107267254 A CN107267254 A CN 107267254A
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- Prior art keywords
- calcium carbonate
- lubricating oil
- treatment fluid
- modified
- pharmaceutical industry
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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
- C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
- C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/14—Inorganic compounds or elements as ingredients in lubricant compositions inorganic compounds surface treated with organic compounds
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, by the material composition of following parts by weight：1 part of modified and light calcium carbonate, 1.8 ~ 2.2 parts of modified nano-titanium dioxides.The present invention have chosen the different filler of two kinds of particles character as raw material, and it is matched carried out it is reasonably combined, different modifications are carried out again simultaneously, final obtained additive surface characteristic is good, and the good dispersion in lube base oil, stability is high, it is not susceptible to agglomeration, the antiwear and reducing friction characteristic of lubricating oil is effectively improved, popularizing value is high, and the market competitiveness is strong.
Description
Technical field
The present invention relates to a kind of additive, and in particular to a kind of wear-resistant addition for universal machinery lubricating oil in pharmaceutical industry
Agent.
Background technology
With the raising of rapid development of economy, and people's quality of life, pharmaceuticals industry is also developed quickly, so that
The progress of pharmaceutical machine technology has been promoted, has promoted the upgrading of drugs manufacture equipment industry.Pharmaceutical industry plant equipment is chemical industry machine
The pith in tool field.Due to the special operation condition of pharmaceutical machine equipment, have to drug quality it is important directly affect, particularly
The lubricating oil that plant equipment is used.The qualitative effects of lubricating oil the stability of pharmaceutical machine equipment operation, while going back and equipment
Life-span it is related, therefore the use quality of rational lifting lubricating oil is to strengthen a kind of hand of pharmaceutical machine equipment performance
Section.
The principal element for determining lube product performance is basis for the content and performance of additive in lubricating oil, summary
The quality of oil is the basic of lubricating oil, and the quality of additive and performance are the marrow of lubricating oil, the quality and performance of additive
And the ratio added directly influences the performance of lubricating oil.So, find with high-quality, high performance additive,
And matched in proper proportions, the performance of lube product can greatly be improved and making for lube product is reduced
Consumption.
The content of the invention
The purpose of the present invention is for the anti-of universal machinery lubricating oil in pharmaceutical industry the problem of being directed to existing there is provided a kind of
Grind additive.
The present invention is achieved by the following technical solutions：
A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, by the material composition of following parts by weight：1 part of modification
Precipitated calcium carbonate, 1.8 ~ 2.2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
5 ~ 8min, is placed in 1 ~ 1.5h of modification in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying
Crushing；Each material and its percetage by weight are in described treatment fluid A：1 ~ 1.3% silane coupler, 0.2 ~ 0.4% fat
Alcohol polyoxyethylene ether phosphate, 0.1 ~ 0.3% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
10 ~ 14min is handled, 1.8 ~ 2.2h of modification in treatment fluid B is placed in after being rinsed well after taking-up with deionized water again, after the completion of
Take out drying and crushing；Each material and its percetage by weight are in described treatment fluid B：0.6 ~ 0.8% aluminate coupling agent,
0.1 ~ 0.4% neopelex, 0.05 ~ 0.2% Aerosol OT, surplus is water.
It is preferred that, by the material composition of following parts by weight：1 part of modified and light calcium carbonate, 2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
6min, is placed in modification 1.2h in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying and crushing
；Each material and its percetage by weight are in described treatment fluid A：1.2% silane coupler, 0.3% aliphatic alcohol polyethenoxy
Ether phosphate, 0.2% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
Handle 12min, modification 2h in treatment fluid B is placed in after being rinsed well after taking-up with deionized water again, after the completion of take out drying
Crushing；Each material and its percetage by weight are in described treatment fluid B：0.7% aluminate coupling agent, 0.3% dodecyl
Benzene sulfonic acid sodium salt, 0.15% Aerosol OT, surplus is water.
Further, when prepared by modified and light calcium carbonate, the precipitated calcium carbonate raw material of selection is flake light calcium carbonate.
Further, when prepared by modified and light calcium carbonate, the mass fraction of phosphoric acid is 4 ~ 6% in phosphoric acid solution used.
Further, when prepared by modified and light calcium carbonate, during modification heating keep treatment fluid A temperature for 60 ~
66 DEG C, and treatment fluid A is constantly stirred with 450 ~ 550 revs/min of rotating speed.
Further, the granular size of described modified and light calcium carbonate is 400 ~ 600nm.
Further, when prepared by modified nano-titanium dioxide, the quality of sodium hydroxide in sodium hydroxide solution used
Fraction is 6 ~ 8%.
Further, when prepared by modified nano-titanium dioxide, heating keeps treatment fluid B temperature to be 53 during modification
~ 58 DEG C, and it is constantly ultrasonically treated to treatment fluid B progress as 30 ~ 35kHz ultrasonic wave using frequency.
Further, the granular size of described modified nano-titanium dioxide is 20 ~ 80nm.
Further, the percetage by weight that described antiwear additive is added in lubricating oil is 1.5 ~ 3%.
In order to lift the use characteristic of lubricating oil, strengthen the antiwear and friction reduction property of lubricating oil, people are attempted into lubricating oil
Inorganic filler particle is added, and achieves certain effect.But inorganic filler particle easily exists in filling reunites, disperses inequality
This problem equally occurs between even phenomenon, different types of particle, and then overall using effect can be influenceed.Present invention selection
Two kinds of material compositions, are precipitated calcium carbonate and nano titanium oxide respectively, wherein precipitated calcium carbonate grain shape used is
Piece shape, titanium dioxide nanoparticle is shaped as spherical, effect difference of two kinds of fillers of different shapes played in lubricating oil, and
With synergy, when the thickness of the lubricating oil oil film between two mechanical parts is larger, lube base oil and precipitated calcium carbonate
Particle plays main lubrication, and now the precipitated calcium carbonate particle of sheet can produce sliding, absorbs part stress, and reduction rubs
Scouring is damaged, when the thickness of the lubricating oil oil film between two mechanical parts is smaller, now lube base oil, precipitated calcium carbonate particle
Lubrication is played jointly with titanium dioxide nanoparticle, and titanium dioxide nanoparticle is dispersed in the week of precipitated calcium carbonate particle
Enclose, and fill out and be overlying in the pit on mechanical part surface, serve the effect of " ball ", the sliding for precipitated calcium carbonate particle is provided
Condition, it is ensured that the effect of anti-attrition, when the thickness of the lubricating oil oil film between two mechanical parts further reduces, lube base
Oil and titanium dioxide nanoparticle play main lubrication, and now titanium dioxide nanoparticle plays the Transfer Medium of power,
The dry friction of mechanical part is avoided, the effect that two kinds of particles molecular complex is used is preferable.But find lightweight in actual use
Agglomeration traits not only easily occur between itself for calcium carbonate and nano titanium oxide, between the two also easily accumulation, and then can influence to disperse
Effect, reduces antifriction effect, has carried out modification to two kinds of particles raw material to this present invention, has made itself and lube base oil
Compatibility preferably, it is right wherein introduce hydrophilic radical to precipitated calcium carbonate particle surface again while both method of modifying are different
Titanium dioxide nanoparticle surface introduces lipophilic group, and the agglomeration reduced between two kinds of particles occurs, and further improves
The quality used.
The present invention has advantages below compared with prior art：
The present invention have chosen the different filler of two kinds of particles character as raw material, and it is matched carried out it is reasonably combined, simultaneously
Different modifications have been carried out again, and final obtained additive surface characteristic is good, the good dispersion in lube base oil,
Stability is high, is not susceptible to agglomeration, effectively improves the antiwear and reducing friction characteristic of lubricating oil, and popularizing value is high, market
Competitiveness is strong.
Embodiment
Embodiment 1
A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, by the material composition of following parts by weight：1 part of modification
Precipitated calcium carbonate, 1.8 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
5min, is placed in modification 1h in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying and crushing be
Can；Each material and its percetage by weight are in described treatment fluid A：1% silane coupler, 0.2% AEO phosphorus
Acid esters, 0.1% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
Handle 10min, be placed in modification 1.8h in treatment fluid B after being rinsed well after taking-up with deionized water again, after the completion of take out dry
Dry crushing；Each material and its percetage by weight are in described treatment fluid B：0.6% aluminate coupling agent, 0.1% dodecane
Base benzene sulfonic acid sodium salt, 0.05% Aerosol OT, surplus is water.
Further, when prepared by modified and light calcium carbonate, the precipitated calcium carbonate raw material of selection is flake light calcium carbonate.
Further, when prepared by modified and light calcium carbonate, the mass fraction of phosphoric acid is 4% in phosphoric acid solution used.
Further, when prepared by modified and light calcium carbonate, heating keeps treatment fluid A temperature to be 60 during modification
DEG C, and treatment fluid A is constantly stirred with 450 revs/min of rotating speed.
Further, the granular size of described modified and light calcium carbonate is 400 ~ 600nm.
Further, when prepared by modified nano-titanium dioxide, the quality of sodium hydroxide in sodium hydroxide solution used
Fraction is 6%.
Further, when prepared by modified nano-titanium dioxide, heating keeps treatment fluid B temperature to be 53 during modification
DEG C, and it is constantly ultrasonically treated to treatment fluid B progress as 30kHz ultrasonic wave using frequency.
Further, the granular size of described modified nano-titanium dioxide is 20 ~ 80nm.
Further, the percetage by weight that described antiwear additive is added in lubricating oil is 1.5%.
Embodiment 2
A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, by the material composition of following parts by weight：1 part of modification
Precipitated calcium carbonate, 2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
6min, is placed in modification 1.2h in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying and crushing
；Each material and its percetage by weight are in described treatment fluid A：1.2% silane coupler, 0.3% aliphatic alcohol polyethenoxy
Ether phosphate, 0.2% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
Handle 12min, modification 2h in treatment fluid B is placed in after being rinsed well after taking-up with deionized water again, after the completion of take out drying
Crushing；Each material and its percetage by weight are in described treatment fluid B：0.7% aluminate coupling agent, 0.3% dodecyl
Benzene sulfonic acid sodium salt, 0.15% Aerosol OT, surplus is water.
Further, when prepared by modified and light calcium carbonate, the precipitated calcium carbonate raw material of selection is flake light calcium carbonate.
Further, when prepared by modified and light calcium carbonate, the mass fraction of phosphoric acid is 5% in phosphoric acid solution used.
Further, when prepared by modified and light calcium carbonate, heating keeps treatment fluid A temperature to be 63 during modification
DEG C, and treatment fluid A is constantly stirred with 500 revs/min of rotating speed.
Further, the granular size of described modified and light calcium carbonate is 400 ~ 600nm.
Further, when prepared by modified nano-titanium dioxide, the quality of sodium hydroxide in sodium hydroxide solution used
Fraction is 7%.
Further, when prepared by modified nano-titanium dioxide, heating keeps treatment fluid B temperature to be 55 during modification
DEG C, and it is constantly ultrasonically treated to treatment fluid B progress as 33kHz ultrasonic wave using frequency.
Further, the granular size of described modified nano-titanium dioxide is 20 ~ 80nm.
Further, the percetage by weight that described antiwear additive is added in lubricating oil is 2.2%.
Embodiment 3
A kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, by the material composition of following parts by weight：1 part of modification
Precipitated calcium carbonate, 2.2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
8min, is placed in modification 1.5h in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying and crushing
；Each material and its percetage by weight are in described treatment fluid A：1.3% silane coupler, 0.4% aliphatic alcohol polyethenoxy
Ether phosphate, 0.3% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
Handle 14min, be placed in modification 2.2h in treatment fluid B after being rinsed well after taking-up with deionized water again, after the completion of take out dry
Dry crushing；Each material and its percetage by weight are in described treatment fluid B：0.8% aluminate coupling agent, 0.4% dodecane
Base benzene sulfonic acid sodium salt, 0.2% Aerosol OT, surplus is water.
Further, when prepared by modified and light calcium carbonate, the precipitated calcium carbonate raw material of selection is flake light calcium carbonate.
Further, when prepared by modified and light calcium carbonate, the mass fraction of phosphoric acid is 6% in phosphoric acid solution used.
Further, when prepared by modified and light calcium carbonate, heating keeps treatment fluid A temperature to be 66 during modification
DEG C, and treatment fluid A is constantly stirred with 550 revs/min of rotating speed.
Further, the granular size of described modified and light calcium carbonate is 400 ~ 600nm.
Further, when prepared by modified nano-titanium dioxide, the quality of sodium hydroxide in sodium hydroxide solution used
Fraction is 8%.
Further, when prepared by modified nano-titanium dioxide, heating keeps treatment fluid B temperature to be 58 during modification
DEG C, and it is constantly ultrasonically treated to treatment fluid B progress as 35kHz ultrasonic wave using frequency.
Further, the granular size of described modified nano-titanium dioxide is 20 ~ 80nm.
Further, the percetage by weight that described antiwear additive is added in lubricating oil is 3%.
Comparative example 1
This comparative example 1 compared with Example 2, with etc. mass parts common commercially available precipitated calcium carbonate, modified nano-silica
Titanium difference substituting modification precipitated calcium carbonate, modified nano-titanium dioxide, method and step all same in addition.
Comparative example 2
This comparative example 2 compared with Example 2, does not contain modified nano-titanium dioxide in its composition, method step in addition
Rapid all same.
Comparative example 3
This comparative example 3 compared with Example 2, does not contain modified and light calcium carbonate in its composition, method and step in addition
All same.
Comparative example 4
This comparative example 4 compared with Example 2, is modified to nano titanium oxide in the way of modified and light calcium carbonate
Processing, method and step all same in addition.
In order to contrast effect of the present invention, from oily based on sucrose polyfatty acid esters, then correspond to respectively addition above-described embodiment 2,
Comparative example 1, comparative example 2, comparative example 3, the additive described in comparative example 4, are made lubricating oil, then to system
The lubricating oil obtained carries out performance test, and specific correction data is as shown in table 1 below：
Table 1
| Coefficient of friction（μ） | Wear extent（mg） | |
| Embodiment 2 | 0.11 | 13.2 |
| Comparative example 1 | 0.17 | 24.1 |
| Comparative example 2 | 0.14 | 18.8 |
| Comparative example 3 | 0.15 | 19.7 |
| Comparative example 4 | 0.12 | 15.9 |
Note：Coefficient of friction described in upper table 1 is tested by linear reciprocating friction abrasion tester, used during abrasion
Size of sample, characteristic etc. are identical, and control load is 250N during experiment, and linear velocity is 1.4m/s, and METHOD FOR CONTINUOUS DETERMINATION 5h, which is measured, to rub
Wipe coefficient；Described wear extent is carried out after measuring friction coefficient, and sample is weighed, the wear extent measured.
Coefficient of friction between parts can be effectively reduced by additive of the present invention it can be seen from upper table 1, abrasion is reduced
Amount, the performance to lubricating oil is lifted preferably, and use value is higher.
Claims (10)
1. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry, it is characterised in that by the thing of following parts by weight
Matter is constituted：1 part of modified and light calcium carbonate, 1.8 ~ 2.2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
5 ~ 8min, is placed in 1 ~ 1.5h of modification in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying
Crushing；Each material and its percetage by weight are in described treatment fluid A：1 ~ 1.3% silane coupler, 0.2 ~ 0.4% fat
Alcohol polyoxyethylene ether phosphate, 0.1 ~ 0.3% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
10 ~ 14min is handled, 1.8 ~ 2.2h of modification in treatment fluid B is placed in after being rinsed well after taking-up with deionized water again, after the completion of
Take out drying and crushing；Each material and its percetage by weight are in described treatment fluid B：0.6 ~ 0.8% aluminate coupling agent,
0.1 ~ 0.4% neopelex, 0.05 ~ 0.2% Aerosol OT, surplus is water.
2. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1, its feature exists
In by the material composition of following parts by weight：1 part of modified and light calcium carbonate, 2 parts of modified nano-titanium dioxides；
The preparation method of described modified and light calcium carbonate is：Precipitated calcium carbonate first is placed in into soaking and washing in phosphoric acid solution to handle
6min, is placed in modification 1.2h in treatment fluid A again after being rinsed well after taking-up with deionized water, after the completion of take out drying and crushing
；Each material and its percetage by weight are in described treatment fluid A：1.2% silane coupler, 0.3% aliphatic alcohol polyethenoxy
Ether phosphate, 0.2% Phosphate of Polyoxyethylene Isooctyl Ether, surplus is water；
The preparation method of described modified nano-titanium dioxide is：First nano titanium oxide is placed in sodium hydroxide solution and soaked
Handle 12min, modification 2h in treatment fluid B is placed in after being rinsed well after taking-up with deionized water again, after the completion of take out drying
Crushing；Each material and its percetage by weight are in described treatment fluid B：0.7% aluminate coupling agent, 0.3% dodecyl
Benzene sulfonic acid sodium salt, 0.15% Aerosol OT, surplus is water.
3. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, when prepared by modified and light calcium carbonate, the precipitated calcium carbonate raw material of selection is flake light calcium carbonate.
4. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, when prepared by modified and light calcium carbonate, the mass fraction of phosphoric acid is 4 ~ 6% in phosphoric acid solution used.
5. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, when prepared by modified and light calcium carbonate, heating keeps treatment fluid A temperature to be 60 ~ 66 DEG C during modification, and with 450 ~
550 revs/min of rotating speed is constantly stirred to treatment fluid A.
6. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, the granular size of described modified and light calcium carbonate is 400 ~ 600nm.
7. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, when prepared by modified nano-titanium dioxide, the mass fraction of sodium hydroxide is 6 ~ 8% in sodium hydroxide solution used.
8. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, when prepared by modified nano-titanium dioxide, heating keeps treatment fluid B temperature to be 53 ~ 58 DEG C during modification, and with frequency
Rate constantly carries out ultrasonically treated for 30 ~ 35kHz ultrasonic wave to treatment fluid B.
9. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, its feature
It is, the granular size of described modified nano-titanium dioxide is 20 ~ 80nm.
10. a kind of antiwear additive for universal machinery lubricating oil in pharmaceutical industry according to claim 1 or 2, it is special
Levy and be, the percetage by weight that described antiwear additive is added in lubricating oil is 1.5 ~ 3%.
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| CN107815341A (en) * | 2017-11-20 | 2018-03-20 | 无锡中科苏惠自动化技术有限公司 | A kind of lubricating oil for food automation equipment and preparation method thereof |
| CN107937092A (en) * | 2017-11-20 | 2018-04-20 | 无锡中科苏惠自动化技术有限公司 | A kind of lubricating grease for food automation equipment and preparation method thereof |
| CN108219914A (en) * | 2018-01-23 | 2018-06-29 | 宿州市微腾知识产权运营有限公司 | A kind of preparation method of colloidal sol antifriction lubrication oil |
| CN110791359A (en) * | 2019-11-05 | 2020-02-14 | 安徽中天石化股份有限公司 | Lubricating oil based on modified nano calcium carbonate and preparation method thereof |
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| CN107815341A (en) * | 2017-11-20 | 2018-03-20 | 无锡中科苏惠自动化技术有限公司 | A kind of lubricating oil for food automation equipment and preparation method thereof |
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| CN108219914A (en) * | 2018-01-23 | 2018-06-29 | 宿州市微腾知识产权运营有限公司 | A kind of preparation method of colloidal sol antifriction lubrication oil |
| CN110791359A (en) * | 2019-11-05 | 2020-02-14 | 安徽中天石化股份有限公司 | Lubricating oil based on modified nano calcium carbonate and preparation method thereof |
| CN110791359B (en) * | 2019-11-05 | 2022-06-28 | 安徽中天石化股份有限公司 | Lubricating oil based on modified nano calcium carbonate and preparation method thereof |
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Application publication date: 20171020 |