CN106279568A - Long-chain alcohol ether polycarboxylic acids and its preparation method and application - Google Patents
Long-chain alcohol ether polycarboxylic acids and its preparation method and application Download PDFInfo
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- CN106279568A CN106279568A CN201610796755.6A CN201610796755A CN106279568A CN 106279568 A CN106279568 A CN 106279568A CN 201610796755 A CN201610796755 A CN 201610796755A CN 106279568 A CN106279568 A CN 106279568A
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- alcohol ether
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/11—Complex polyesters
-
- 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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/11—Complex polyesters
- C10M2209/1105—Complex polyesters used as base material
-
- 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
- C10N2030/04—Detergent property or dispersant property
-
- 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
Abstract
The present invention relates to a kind of long-chain alcohol ether polycarboxylic acids and its preparation method and application.This long-chain alcohol ether polycarboxylic acids has structure shown in formula I, in formula I, and x=x=0 10, y=1 10, z=0 10, p=10 40, n=5 25, m=5 25；Described long-chain alcohol ether polycarboxylic acids is prepared from the following materials: EO/PO block polyether, maleic anhydride, acrylic acid, initiator, chain-transferring agent and polymerization inhibitor；Described EO/PO block polyether, maleic anhydride and acrylic acid mol ratio are 1:0.5～1.5:1.5～4；In described EO/PO block polyether, the mol ratio of EO:PO is 0.2～2:1.The long-chain alcohol ether polycarboxylic acids of the present invention can use as extreme-pressure lubricant, has outstanding aqueous lubricating and antifriction performance, and safety and environmental protection, has splendid compatibility and intermiscibility, not viscous bits, easy cleaning with oil emulsion, emulsion cutting oil.
Description
Technical field
The present invention relates to field of lubricant, particularly relate to a kind of long-chain alcohol ether polycarboxylic acids and its preparation method and application.
Background technology
Along with modern machinery and equipment is to the development in the directions such as high speed, top load, high temperature, the lubrication state of equipment becomes more to come
The harshest；When plant equipment high load capacity, high-revolving under the conditions of, conventional lubricant formed thin film will be destroyed, no longer
Play the effect of protection metal surface, the situation that contact surface there will be scratch, even sinters, be now accomplished by a kind of resistance to extreme pressure
Lubricant improves the antiwear property of each parts.
Now commonly use extreme-pressure lubricant to have: chlorinated paraffin, phosphate ester, polyesters.Due to the parsing of chlorine in chlorinated paraffin ion,
Corrosion aggravation, is progressively eliminated.The eutrophication problem that phosphate ester discharges due to phosphorus, the most disabled.Conventional polyester class is moistened
Lubrication prescription is due to ester bond facile hydrolysis, and service life is shorter, and belongs to oiliness extreme-pressure lubricant.
Summary of the invention
Based on this, the invention provides a kind of long-chain alcohol ether polycarboxylic acids, as a kind of aqueous extreme-pressure lubricant, have outstanding
Aqueous lubricating and antifriction performance.
Concrete technical scheme is as follows.
A kind of long-chain alcohol ether polycarboxylic acids, has a structure shown in formula I:
In formula I, x=0-10, y=1-10, z=0-10, p=10-40, n=5-25, m=5-25；
Described long-chain alcohol ether polycarboxylic acids is prepared from the following materials: EO/PO block polyether, maleic anhydride, propylene
Acid, initiator, chain-transferring agent and polymerization inhibitor；
Described EO/PO block polyether, maleic anhydride and acrylic acid mol ratio are 1:0.5～1.5:1.5～4；
In described EO/PO block polyether, the mol ratio of EO:PO is 0.2～2:1.
Wherein in some embodiments, described EO/PO block polyether, maleic anhydride and acrylic acid mol ratio are 1:
0.8～1.2:2～3.
Wherein in some embodiments, in described EO/PO block polyether, the mol ratio of EO:PO is 0.5～1.5:1.
Wherein in some embodiments, described EO/PO block polyether is trans block polyether.
Wherein in some embodiments, described initiator is benzoyl peroxide, and consumption is the 0.05-of raw material gross weight
0.8%.
Wherein in some embodiments, the consumption of described initiator is the 0.18-0.25% of raw material gross weight.
Wherein in some embodiments, described chain-transferring agent is TGA or mercaptopropionic acid, and consumption is raw material gross weight
0.05-0.8%.
Wherein in some embodiments, the consumption of described chain-transferring agent is the 0.08-0.15% of raw material gross weight.
Wherein in some embodiments, described polymerization inhibitor is hydroquinone or MEHQ, and consumption is raw material gross weight
The 0.05-0.8% of amount.
Wherein in some embodiments, the consumption of described polymerization inhibitor is the 0.08-0.15% of raw material gross weight.
Wherein in some embodiments, described long-chain alcohol ether polycarboxylic acids is 500-1500 centistoke at the kinematic viscosity of 40 DEG C.
Present invention also offers the preparation method of a kind of above-mentioned long-chain alcohol ether polycarboxylic acids.
Concrete technical scheme is as follows:
The preparation method of a kind of long-chain alcohol ether polycarboxylic acids, comprises the following steps:
Esterification: maleic anhydride and EO/PO block polyether react to obtain long-chain ester compound, reaction temperature is 40-120
DEG C, the response time is 0.5-6 hour；
Polyreaction: long-chain ester compound is warming up to 60-150 DEG C, adds initiator and chain-transferring agent, then drips propylene
Acid, insulation reaction 0.5-10 hour；
Terminate reacting: temperature evacuation taste removal during maintenance polyreaction 1-2 hour, add polymerization inhibitor, obtain described length
Chain alcohol ether polycarboxylic acids.
Wherein in some embodiments, the reaction temperature of described esterification is 65-75 DEG C, and the response time is 1-3 hour.
Wherein in some embodiments, the reaction temperature of described polyreaction is 85-95 DEG C, and the response time is 2-5 hour.
Wherein in some embodiments, the reaction temperature of described esterification is 65-75 DEG C, and the response time is 1-3 hour；
The reaction temperature of described polyreaction is 85-95 DEG C, and the response time is 2-3 hour.
Present invention also offers the application of above-mentioned long-chain alcohol ether polycarboxylic acids.
Concrete technical scheme is as follows:
The application in preparing extreme-pressure lubricant of the above-mentioned long-chain alcohol ether polycarboxylic acids.
Long-chain alcohol ether polycarboxylic acids of the present invention and its preparation method and application has the following advantages and beneficial effect:
1, long-chain alcohol ether polycarboxylic acids of the present invention can be applied as extreme-pressure lubricant, has outstanding aqueous lubricating and antifriction
Performance, has four ball detection performances of excellence, and PB value is more than 130 kgfs.
2, the long-chain alcohol ether polyocarboxy acid type extreme-pressure lubricant safety and environmental protection of the present invention, not sulfur-bearing, phosphorus, chlorine, boron, lead, zinc etc.
Toxic element, environmental protection, pollution-free, and have no irritating odor, job site is more easily accepted by.
3, the long-chain alcohol ether polyocarboxy acid type extreme-pressure lubricant of the present invention and oil emulsion, emulsion cutting oil have splendid compatibility
Property and intermiscibility；Use the oil emulsion of the long-chain alcohol ether polycarboxylic acids allotment of the present invention, show extremely low foam tendency, do not glue
Bits, easy cleaning, both can meet cleaning performance, be suitable for again the requirement of low bubble processing occasion.
4, the long-chain alcohol ether polycarboxylic acids preparation method of the present invention is simple, is suitable to industrialized production.
Detailed description of the invention
Below by way of specific embodiment, long-chain alcohol ether polycarboxylic acids of the present invention and its preparation method and application is made further
Detailed description.
The reaction equation of the long-chain alcohol ether polycarboxylic acids of the present invention is as follows:
Wherein, x=0-10, y=1-10, z=0-10, p=10-40, n=5-25, m=5-25；
Embodiment 1
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 65 DEG C, in 1 hour
It is dividedly in some parts maleic anhydride 19.6 grams (0.2mol), adds rear insulation reaction 2 hours；It is warmed up to 85 DEG C, adds peroxidating
Benzoyl 1.2 grams, mercaptopropionic acid 0.6 gram, within 3 hours, drip off 28.8 grams of acrylic acid (0.4mol), insulation reaction 3 hours；Vacuum is removed
Taste 1.5 hours；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Embodiment 2
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 75 DEG C, in 1 hour
Add maleic anhydride 19.6 grams (0.2mol) in batches, add rear insulation reaction 1 hour；It is warmed up to 95 DEG C, adds benzoyl peroxide
Formyl chloride-1 .2 gram, mercaptopropionic acid 0.6 gram；Within 3 hours, drip off 28.8 grams of acrylic acid (0.4mol), insulation reaction 2 hours；Vacuum taste removal 1
Hour；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Embodiment 3
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 65 DEG C, in 1 hour
Add maleic anhydride 19.6 grams (0.2mol) in batches, add rear insulation reaction 3 hours；It is warmed up to 85 DEG C, adds benzoyl peroxide
Formyl chloride-1 .2 gram, mercaptopropionic acid 0.6 gram；Within 2.5 hours, drip off 28.8 grams of acrylic acid (0.4mol), insulation reaction 3 hours；Vacuum is removed
Taste 1 hour；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Embodiment 4
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 75 DEG C, in 1 hour
Add maleic anhydride 19.6 grams (0.2mol) in batches, add rear insulation reaction 1 hour；It is warmed up to 95 DEG C, adds benzoyl peroxide
Formyl chloride-1 .2 gram, mercaptopropionic acid 0.6 gram；Within 4 hours, drip off 28.8 grams of acrylic acid (0.4mol), insulation reaction 2 hours；Vacuum taste removal 2
Hour；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Embodiment 5
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 65 DEG C, in 1 hour
Add maleic anhydride 19.6 grams (0.2mol) in batches, add rear insulation reaction 1 hour；It is warmed up to 85 DEG C, adds benzoyl peroxide
Formyl chloride-1 .2 gram, mercaptopropionic acid 0.6 gram；Within three hours, drip off 36 grams of acrylic acid (0.5mol), insulation reaction 2 hours；Vacuum taste removal 1
Hour；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Embodiment 6
The long-chain alcohol ether polycarboxylic acids of the present embodiment is prepared by following methods:
1740 (the trans block polyether of EO/PO (EO:PO=2:3)) 530 grams (0.2mol) are warming up to 70 DEG C, in 1 hour
Add maleic anhydride 19.6 grams (0.2mol) in batches, add rear insulation reaction 1 hour；It is warmed up to 90 DEG C, adds benzoyl peroxide
Formyl chloride-1 .2 gram, mercaptopropionic acid 0.6 gram；Within 4 hours, drip off 43.2 grams of acrylic acid (0.6mol), insulation reaction 2 hours；Vacuum taste removal 1
Hour；Add hydroquinone 0.6 gram, cooling discharge, obtain described long-chain alcohol ether polycarboxylic acids.
Comparative example 1
The preparation method of the long-chain alcohol ether polycarboxylic acids of this comparative example is substantially with embodiment 1, and difference is, polyethers used is
PEG-2000 (polyoxyethylene ether).
Comparative example 2
The preparation method of the long-chain alcohol ether polycarboxylic acids of this comparative example is substantially with embodiment 1, and difference is, polyethers used is L-
63 (propylene glycol block polyethers).
Comparative example 3
The preparation method of the long-chain alcohol ether polycarboxylic acids of this comparative example is substantially with embodiment 1, and difference is, EO/PO is trans embedding
Section polyethers, maleic anhydride and acrylic acid mol ratio are 1:1.5:5.
Comparative example 4
The preparation method of the long-chain alcohol ether polycarboxylic acids of this comparative example is substantially with embodiment 1, and difference is, EO/PO is trans embedding
Section polyethers, maleic anhydride and acrylic acid mol ratio are 1:2:4.
The performance test results of the long-chain alcohol ether polycarboxylic acids that embodiment 1-6, comparative example 1-4 prepare is as shown in table 1:
The performance test results of table 1 long-chain alcohol ether polycarboxylic acids
Note: the viscosity in table is the kinematic viscosity of 40 DEG C.
From upper table result it can be seen that esterification temperature is little 65-75 DEG C of product index change, polymerization temperature is at 85-95
The change of DEG C product index is little, and time for adding is little product index change in 2-4 hour, and preferred process conditions are basicly stable.
The performance of product is affected relatively big by the kind of raw material alcohol ether with proportioning raw materials, and the long-chain alcohol ether that embodiment 1-6 prepares gathers
The various good physical properties of carboxylic acid, and the long-chain complete water solublity of alcohol ether polycarboxylic acids of comparative example 1 and greasy property are poor, and be solid
Body, in-convenience in use；The cloud point of the long-chain alcohol ether polycarboxylic acids of comparative example 2 is the lowest, is not suitable for the operating temperature under normal condition；Right
Ratio 3,4 viscosity is big, and foam difficulty disappears, and the viscous bits of cutter.
Embodiment 7 tapping torque test experiments
Method of testing is as follows: by embodiment 1-6, the long-chain alcohol ether polycarboxylic acids of comparative example 1-2 and JV-938 respectively by joining
Side's ratio deployed fully synthetic cutting fluid sample, the then working solution of preparation 10%.7075 aluminum are done with the working solution prepared
Tapping torque data.Test condition is rotating speed 1500rpm, torsion 300Ncm, tapping degree of depth 8mm.Formula proportion is as shown in table 2:
Table 2 cutting fluid formula
Note: TEA: triethanolamine, can be obtained by DOW Chemical；
ANTA-CAR 210MT: tricarboxylic acid amine type antirust agent, product very had by oneself by rice；
FUNTAG CU250: water solublity benzotriazole derivant, product very had by oneself by rice；
Busan 77: polyquaternary amine salt sedimentation agent, can be obtained by Bark Man；
1740: trans block polyether, can be obtained by BASF.
Test result is shown in Table 3:
Table 3 tapping torque test experiments result
This test workpiece used is the representative model of conventional aluminium, and in on-the-spot processing, the long-chain alcohol ether polycarboxylic acids of the present invention is also
The workpiece of other model can be applicable to as extreme-pressure lubricant.
The processing method of this test mainly boring and tapping, similarly, in scene, the poly-carboxylic of long-chain alcohol ether of the present invention
Acid also can be applicable to the processing modes such as grinding, deep-draw, cutting as extreme-pressure lubricant.Owing to tapping torque test mainly draws
It is peak torque (maximal force i.e. consumed) and the average torque (force value i.e. consumed) adding man-hour requirement, so processing
Peak torque and average torque the least, the lubrication extreme pressure property representing this additive is the best.
As can be seen from the above results, the long-chain alcohol ether polycarboxylic acids of the present invention has good extreme boundary lubrication.
Embodiment 8 four ball test experiments
Method of testing is as follows: first by embodiment 1-6, the long-chain alcohol ether polycarboxylic acids of comparative example 1-2 and JV-938 and basis
10% working solution prepared by oil after being sufficiently mixed in proportion.It is four ball maximum nonseizure load PB (GB/T with the working solution prepared
3142-82) with long-time frictional experiment (SH/T 0189-92).
The condition of GB/T 3142-82 is as follows: 10 seconds time；Rotating speed 1450 revs/min；Temperature 27 ± 8 DEG C, locking 68 ±
7N·m。
The condition of SH/T 0189-92 is as follows: 60 minutes time；Rotating speed 1200 revs/min；Temperature 27 ± 8 DEG C；Load:
20kg；Locking 68 ± 7N m.
Formula proportion is as shown in table 4:
Table 4 cutting fluid formula
Note: TEA: triethanolamine, can be obtained by DOW Chemical.
ANTA-CAR 210MT: tricarboxylic acid amine type antirust agent, product very had by oneself by rice.
FUNTAG CU250: water solublity benzotriazole derivant, product very had by oneself by rice.
Busan 77: polyquaternary amine salt sedimentation agent, can be obtained by Bark Man.
1740: trans block polyether, can be obtained by BASF.
Test result is shown in Table 5:
Table 5 four ball test experiments result
In four ball experiment tests, under uniform temperature, rotating speed, maximum nonseizure load PB value, expression is that steel ball exists
There is not seizing peak load in lubricating status, PB value is the highest, illustrates that the greasy property of lubricant is the best.Wear scar diameter D value, table
Show is load-bearing steel ball face because friction causes the size of wear scar diameter, and D value is the least, and the abrasion-resistance of lubricant, profit are described
Slip can be the best.
The long-chain alcohol ether polycarboxylic acids of the present invention has good extreme boundary lubrication as can be seen from the above results.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a long-chain alcohol ether polycarboxylic acids, it is characterised in that there is structure shown in formula I:
In formula I, x=0-10, y=1-10, z=0-10, p=10-40, n=5-25, m=5-25；
Described long-chain alcohol ether polycarboxylic acids is prepared from the following materials: EO/PO block polyether, maleic anhydride, acrylic acid, draw
Send out agent, chain-transferring agent and polymerization inhibitor；
Described EO/PO block polyether, maleic anhydride and acrylic acid mol ratio are 1:0.5～1.5:1.5～4；
In described EO/PO block polyether, the mol ratio of EO:PO is 0.2～2:1.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1, it is characterised in that described EO/PO block polyether, maleic two
Anhydride and acrylic acid mol ratio are 1:0.8～1.2:2～3.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1 and 2, it is characterised in that in described EO/PO block polyether, EO:
The mol ratio of PO is 0.5～1.5:1.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1 and 2, it is characterised in that described initiator is benzoyl peroxide first
Acyl, consumption is the 0.05-0.8% of raw material gross weight.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1 and 2, it is characterised in that described chain-transferring agent is TGA
Or mercaptopropionic acid, consumption is the 0.05-0.8% of raw material gross weight.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1 and 2, it is characterised in that described polymerization inhibitor be hydroquinone or
MEHQ, consumption is the 0.05-0.8% of raw material gross weight.
Long-chain alcohol ether polycarboxylic acids the most according to claim 1 and 2, it is characterised in that described long-chain alcohol ether polycarboxylic acids is 40
DEG C kinematic viscosity be 500-1500 centistoke.
8. the preparation method of the long-chain alcohol ether polycarboxylic acids described in an any one of claim 1-7, it is characterised in that include following
Step:
Esterification: maleic anhydride and EO/PO block polyether react to obtain long-chain ester compound, reaction temperature is 40-120 DEG C,
Response time is 0.5-6 hour；
Polyreaction: long-chain ester compound is warming up to 60-150 DEG C, adds initiator and chain-transferring agent, then drips acrylic acid, protects
Temperature reaction 0.5-10 hour；
Terminate reacting: temperature evacuation taste removal during maintenance polyreaction 1-2 hour, add polymerization inhibitor, obtain described long-chain alcohol
Ether polycarboxylic acids.
The preparation method of long-chain alcohol ether polycarboxylic acids the most according to claim 8, it is characterised in that described esterification anti-
Answering temperature to be 65-75 DEG C, the response time is 1-3 hour；The reaction temperature of described polyreaction is 85-95 DEG C, and the response time is
2-3 hour.
10. the application in preparing extreme-pressure lubricant of the long-chain alcohol ether polycarboxylic acids described in any one of claim 1-7.
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| CN110791363A (en) * | 2019-09-27 | 2020-02-14 | 佳化化学(上海)有限公司 | Fully synthetic cutting fluid and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791363A (en) * | 2019-09-27 | 2020-02-14 | 佳化化学(上海)有限公司 | Fully synthetic cutting fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106279568B (en) | 2019-01-08 |
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