CN104073333B - Water-ethylene glycol nonflame hydraulic fluid and preparation method thereof - Google Patents
Water-ethylene glycol nonflame hydraulic fluid and preparation method thereof Download PDFInfo
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- CN104073333B CN104073333B CN201310109226.0A CN201310109226A CN104073333B CN 104073333 B CN104073333 B CN 104073333B CN 201310109226 A CN201310109226 A CN 201310109226A CN 104073333 B CN104073333 B CN 104073333B
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Abstract
The invention discloses a kind of water-ethylene glycol nonflame hydraulic fluids and preparation method thereof.Its raw material includes: the ethylene glycol and/or diethylene glycol of 35-50% deionized water, 5-20% polyethers, 0.2-3% extreme pressure anti-wear additives, 0.1-1% matal deactivator, 0.5-3% rust-inhibiting additive, 0.5-3% anticorrosion and bactericidal agent, 0.001-0.1% antifoam additive, 0.5-4%pH stabilizer and surplus.The percentage is the mass percent of raw material, wherein the polyethers is ethylene oxide and epoxy propane copolymer.Water-ethylene glycol nonflame hydraulic fluid produced by the present invention is applicable to the every field such as mine, metallurgy, steel, military project, ship, inhibits the flourish of bacterium and fungi, has good biological stability, long service life.There is good flame resistance, lubricity, defoaming, low temperature properties, rust-preventing characteristic etc. simultaneously.
Description
Technical field
The present invention relates to a kind of water-ethylene glycol nonflame hydraulic fluids and preparation method thereof.
Background technique
Water-ethylene glycol nonflame hydraulic fluid is widely used because having good flame resistance, stability, low temperature properties etc.
In every field such as mine, metallurgy, steel, military project, ships.But water glycol hydraulic fluid also exposes in actual use
Various problems, such as lubricity is poor, foam, antirust, anti-corrosive.Therefore in the art, people are hydraulic to traditional water glycol
Liquid carries out various improvement to improve its performance, meets the needs of actual processing application.Such as Chinese patent CN101348747A is ground
A kind of water-ethanol hydraulic fluid and preparation method thereof is studied carefully, has had by patent water glycol hydraulic fluid obtained good
The performances such as wear-resistant, antirust, anti-bubble；Chinese patent CN1367231A has studied water-second that a kind of antifoam performance is good, abrasion resistance is high
Glycol hydraulic fluid；It is hydraulic that CN102086422A has studied the water-ethylene glycol with good lubricating properties and wear resistence under a kind of high pressure
Liquid；CN102732368A has studied a kind of efficient hydraulic liquid, has good lubricity and rust-preventing characteristic；CN101182428A research
A kind of antifoam performance good water glycol hydraulic fluid.
All only pay attention to the improvement of the performances such as product lubrication, antirust, foam in the prior art, but does not account for product
Raw bacterium spoilage problem durings storage and transportation, using etc., the introducing of especially some extreme pressure anti-wear additives are bacterium, fungi etc.
Breeding production provides good nutrient source, therefore in practical applications, will often find that water glycol hydraulic fluid is easily given birth to
Phenomena such as bacterium, corruption, which significantly limits the development of water glycol hydraulic fluid, and the phenomenon is urgently to be resolved.
Summary of the invention
The technical problem to be solved by the present invention is to overcome existing water-ethylene glycol nonflame hydraulic fluid only to pay attention to product profit
The improvement of the performances such as cunning, antirust, foam, but raw bacterium spoilage problem of product durings storage and transportation, using etc. is not accounted for,
Easily there is phenomena such as raw bacterium, corruption, a kind of new water-ethylene glycol nonflame hydraulic fluid and preparation method thereof is provided.System of the present invention
The water-ethylene glycol nonflame hydraulic fluid obtained is applicable to the every field such as mine, metallurgy, steel, military project, ship, and has good
Lubricity, rust-preventing characteristic, defoaming, low temperature properties, flame resistance, while there is very strong bacteriostasis, in storage and transportation and actual use
It is not easy raw bacterium, long service life in the process.
Inventor attempts to add some fungicide to control water-ethylene glycol fire-resistant by multi-party research in R&D process
The growth of bacterium in hydraulic fluid, however, it was found that the introducing of fungicide will affect the steady of entire water-ethylene glycol nonflame hydraulic fluid system
The performances such as qualitative, low temperature properties, technical effect is also not it is obvious that final inventor overcomes very big skill by multi-party discussion
Art difficulty is just achieved technical solution of the present invention and its technical effect.
It is an object of the invention to provide a kind of water-ethylene glycol nonflame hydraulic fluids；
Its raw material includes:
The percentage is the mass percent of raw material；
Wherein, the polyethers is ethylene oxide and epoxy propane copolymer.
In the present invention, preferably, the number-average molecular weight of the ethylene oxide and epoxy propane copolymer is 5000-
30000, the ethylene oxide and epoxy propane copolymer object are block copolymer.More preferably, ethylene oxide of the invention and
The purchase producer of epoxy propane copolymer and model are respectively as follows: BASF Pluracol V-10, Nanjing Weir chemical industry SDN-10D
With Liaoning Cologne fine chemistry industry APE30-2.
In the present invention, the extreme pressure anti-wear additives are the extreme pressure anti-wear additives of this field routine；Preferably, the extreme pressure is anti-
Long-chain carboxylic acid and/or the phosphate that grinding agent is C8-C18；More preferably, the long-chain carboxylic acid is octanoic acid and/or oleic acid.
In the present invention, the matal deactivator is the matal deactivator of this field routine；Preferably, the metal
Passivator is benzotriazole compound；More preferably, the benzotriazole compound is benzotriazole, benzo three
One of nitrogen azoles sodium salt, 1- hydroxy benzo triazole, methyl benzotriazazole and 4- hydroxy benzo triazole are a variety of.
In the present invention, the rust-inhibiting additive is the rust-inhibiting additive of this field routine；Preferably, the antirust adds
Adding agent is organic carboxyl acid class, polybasic carboxylic acid class and its one of derivative and amino acid derivatives or a variety of；Wherein, institute
The organic carboxyl acid class stated is in caproic acid, enanthic acid, octanoic acid, n-nonanoic acid, isononanoic acid, capric acid, neodecanoic acid and tolysulfonyl aminocaproic acid
It is one or more；The polybasic carboxylic acid class and its derivative are decanedioic acid, three ammonia of adipic acid, dodecanedicarboxylic acid and triazine
One of base caproic acid is a variety of；The amino acid derivatives are N- decoyl glutamic acid and/or N- decoyl asparatate
Triethanolamine.
In the present invention, the anticorrosion and bactericidal agent is the anticorrosion and bactericidal agent of this field routine；Preferably, the anti-corrosion is killed
Microbial inoculum is 1,3,5- tri- (2- ethoxy)-hexahydro-triazines and/or 3-Iodo-2-propynyl butyl carbamate (IPBC20), more
Good, 1,3,5- tri- (the 2- ethoxy)-hexahydro-triazines and 3-Iodo-2-propynyl butyl carbamate (IPBC20)
Adding proportion be (1-5): 1, the ratio be weight ratio.
In the present invention, preferably, the antifoam additive is silicone emulsion and/or phosphate.
In the present invention, preferably, the pH stabilizer be monoethanolamine, diethanol amine, triethanolamine, isopropanolamine and
One of diglycolamine is a variety of.
In the present invention, preferably, the additive amount of the ethylene glycol and/or diethylene glycol is 30%-45%, the percentage
The mass percent of raw material is accounted for for ethylene glycol and/or diethylene glycol.In the present invention, the ethylene glycol and/or diethylene glycol
Additive amount both when additive amount is independent addition ethylene glycol or diethylene glycol respectively, or ethylene glycol and diethylene glycol are added simultaneously
When, the total addition level of the two.
The second purpose of the invention is to provide the preparation method of above-mentioned water-ethylene glycol nonflame hydraulic fluid, step includes:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 20-40 DEG C, and the speed of the stirring is 100rpm-150rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
In the present invention, preferably, the temperature of the stirring is 30 DEG C in step (1).
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The reagents and materials used in the present invention are commercially available.
The positive effect of the present invention is that: water-ethylene glycol nonflame hydraulic fluid produced by the present invention is applicable to mine
The every field such as mountain, metallurgy, steel, military project, ship inhibit the flourish of bacterium and fungi, have good Biostatic
Property, long service life.There is good flame resistance, lubricity, defoaming, low temperature properties, rust-preventing characteristic etc. simultaneously.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
Embodiment 1
Its raw material includes:
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 20 DEG C, and the speed of the stirring is 150rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Embodiment 2
Its raw material includes:
Wherein, the polyethers is ethylene oxide and epoxy propane copolymer；
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 100rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Embodiment 3
Its raw material includes:
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 120rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Embodiment 4
Its raw material includes:
Wherein, the polyethers is ethylene oxide and epoxy propane copolymer；
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 100rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Embodiment 5
Its raw material includes:
Wherein, the polyethers is ethylene oxide and epoxy propane copolymer；
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 100rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Comparative example 1
Its raw material includes:
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 120rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, antifoam additive and pH are stablized
Agent mixing, stirs evenly.
Comparative example 2
Its raw material includes:
Preparation method are as follows:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly is described
The temperature of stirring is 40 DEG C, and the speed of the stirring is 120rpm；
(2) above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, anticorrosion and bactericidal agent, rust-inhibiting additive, anti-bubble are added
Agent and the mixing of pH stabilizer, stir evenly.
Effect example 1
The detection method of the properties of 1 water-ethylene glycol nonflame hydraulic fluid of table
| Project | Detection method |
| Storage stability | GB6144-85 |
| Kinematic viscosity (40 DEG C) mm2/s | GB/T265 |
| Viscosity index (VI) | GB/T1995 |
| Relative density (20 DEG C) g/ml | GB/T2540 |
| Condensation point, DEG C | GB/T3535 |
| PH value | GB/T7304 |
| Volatile rust prevention (50 DEG C, 48hr) | GB/T5096 |
| Liquid phase antirust (50 DEG C, 72hr) | GB/T5096 |
| Copper corrosion (50 DEG C, 3hr) grade | GB/T5096 |
| 24 DEG C of the foam high ml of bubble | GB/T12579 |
| Four balls long mill/mm(147N, 30min) | GB/T3142 |
| Biological stability test | ASTM D3946-92 |
Table 2: the comparison of the properties of water-ethylene glycol nonflame hydraulic fluid in embodiment and comparative example
As seen from the above table, lubricity, defoaming, low temperature properties, the fire-resistant of water-ethylene glycol nonflame hydraulic fluid produced by the present invention
Property and bacteriostasis and other effects it is good, especially anti-microbial property, hence it is evident that be better than comparative example and product in the prior art.No
Within the scope of the raw material or its additive amount that the present invention limits, the effect of water-ethylene glycol nonflame hydraulic fluid obtained is not so good as this hair
Bright effect.
Claims (8)
1. a kind of water-ethylene glycol nonflame hydraulic fluid, it is characterised in that: its raw material includes:
The percentage is the mass percent of raw material；
Wherein, the polyethers is ethylene oxide and epoxy propane copolymer；
The anticorrosion and bactericidal agent is 1,3,5- tri- (2- ethoxy)-hexahydro-triazines and the iodo- 2-propynyl butylamino formic acid of 3-
Ester；
Described 1, the adding proportion of 3,5- tri- (2- ethoxy)-hexahydro-triazines and 3-Iodo-2-propynyl butyl carbamate
For (1-5): 1, the ratio is weight ratio；
Long-chain carboxylic acid and/or the phosphate that the extreme pressure anti-wear additives are C8-C18；
The matal deactivator is benzotriazole compound；
The rust-inhibiting additive is organic carboxyl acid class and/or amino acid derivatives；
The antifoam additive is silicone emulsion and/or phosphate；
The pH stabilizer is one of monoethanolamine, diethanol amine, triethanolamine, isopropanolamine and diglycolamine or more
Kind.
2. water-ethylene glycol nonflame hydraulic fluid as described in claim 1, it is characterised in that: the ethylene oxide and epoxy third
The number-average molecular weight of alkyl copolymer is 5000-30000, and the ethylene oxide and epoxy propane copolymer are block copolymer.
3. water-ethylene glycol nonflame hydraulic fluid as described in claim 1, it is characterised in that: the long-chain carboxylic acid be octanoic acid and/
Or oleic acid.
4. water-ethylene glycol nonflame hydraulic fluid as described in claim 1, it is characterised in that: the benzotriazole chemical combination
Object is benzotriazole, benzotriazole sodium salt, three nitrogen of 1- hydroxy benzo triazole, methyl benzotriazazole and 4- hydroxy benzo
One of azoles is a variety of.
5. water-ethylene glycol nonflame hydraulic fluid as described in claim 1, it is characterised in that: the organic carboxyl acid class be caproic acid,
Enanthic acid, octanoic acid, n-nonanoic acid, isononanoic acid, capric acid, neodecanoic acid, tolysulfonyl aminocaproic acid, decanedioic acid, adipic acid, 12 carbon binary
One of acid and triazine triamido caproic acid are a variety of；The amino acid derivatives are that N- decoyl glutamic acid and/or N- are pungent
Acyl asparatate triethanolamine.
6. water-ethylene glycol nonflame hydraulic fluid as described in claim 1, it is characterised in that: the ethylene glycol and/or diethyl two
The additive amount of alcohol is 30%-45%, and the percentage is the mass percent that ethylene glycol and/or diethylene glycol account for raw material.
7. a kind of preparation method of such as water-ethylene glycol nonflame hydraulic fluid of any of claims 1-6, feature exist
In: its step includes:
(1) deionized water, ethylene glycol and/or diethylene glycol and polyethers are mixed, the mixed liquor stirred evenly, the stirring
Temperature be 20-40 DEG C, the speed of the stirring is 100rpm-150rpm；
(2) by above-mentioned mixed liquor and extreme pressure anti-wear additives, matal deactivator, rust-inhibiting additive, anticorrosion and bactericidal agent, antifoam additive and
The mixing of pH stabilizer, stirs evenly.
8. preparation method as claimed in claim 7, it is characterised in that: in step (1), the temperature of the stirring is 30 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021198420A1 (en) * | 2020-04-03 | 2021-10-07 | Shell Internationale Research Maatschappij B.V. | Water/glycol-based hydraulic fluid |
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| CN104592952B (en) * | 2015-01-19 | 2017-12-15 | 山东龙程矿业科技股份有限公司 | The special anti-icing fluid of hydraulic support |
| CN106318591A (en) * | 2015-06-29 | 2017-01-11 | 鞍钢股份有限公司 | Antifoaming agent used for water glycol fire-resistant hydraulic fluid |
| CN105154174B (en) * | 2015-08-27 | 2018-02-27 | 煤炭科学技术研究院有限公司 | A kind of high efficiency composition corrosion inhibiter and application for hydraulic support hydraulic fluid |
| CN110003977A (en) * | 2018-01-05 | 2019-07-12 | 中国石油天然气股份有限公司 | The preparation method of hydraulic support concentrate antirust agent |
| CN109097174A (en) * | 2018-08-18 | 2018-12-28 | 孟祥冰 | A kind of water glycol nonflammable hydraulic fluid and preparation method thereof |
| CN110791364A (en) * | 2019-10-28 | 2020-02-14 | 烟台恒邦化工有限公司 | High-hard-water-resistance water-glycol fire-resistant hydraulic fluid and preparation method thereof |
| CN112159703A (en) * | 2020-08-28 | 2021-01-01 | 希玛石油制品（镇江）有限公司 | Environment-friendly water-soluble door closer lubricant and preparation method thereof |
| CN112029562B (en) * | 2020-09-22 | 2022-06-17 | 湖北诚祥科技有限公司 | Water-based fire-resistant hydraulic fluid |
| CN112063440A (en) * | 2020-10-30 | 2020-12-11 | 山东奥瑞特矿业科技股份有限公司 | High-performance environment-friendly anti-freezing solution for hydraulic support and preparation method thereof |
| CN112481010B (en) * | 2020-11-26 | 2022-11-11 | 南京工业大学 | Viscosity-series water-glycol flame-retardant hydraulic fluid and preparation method thereof |
| CN112592757A (en) * | 2020-12-16 | 2021-04-02 | 上海东大化学有限公司 | Water-based hydraulic fluid and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747987A (en) * | 2009-12-21 | 2010-06-23 | 克拉玛依市金山石油化工有限公司 | Water-based copper and aluminum wiredrawing oil composite and preparation method thereof |
| CN102086422A (en) * | 2009-12-03 | 2011-06-08 | 中国石油天然气股份有限公司 | Water-glycol fire-resistant hydraulic fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002265310A (en) * | 2001-03-06 | 2002-09-18 | Nagase Chemtex Corp | Antimicrobial agent composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086422A (en) * | 2009-12-03 | 2011-06-08 | 中国石油天然气股份有限公司 | Water-glycol fire-resistant hydraulic fluid |
| CN101747987A (en) * | 2009-12-21 | 2010-06-23 | 克拉玛依市金山石油化工有限公司 | Water-based copper and aluminum wiredrawing oil composite and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021198420A1 (en) * | 2020-04-03 | 2021-10-07 | Shell Internationale Research Maatschappij B.V. | Water/glycol-based hydraulic fluid |
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