CN107267125A - A kind of environmental friendly, anti-corrosive loses engine coolant - Google Patents
A kind of environmental friendly, anti-corrosive loses engine coolant Download PDFInfo
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- CN107267125A CN107267125A CN201710718237.7A CN201710718237A CN107267125A CN 107267125 A CN107267125 A CN 107267125A CN 201710718237 A CN201710718237 A CN 201710718237A CN 107267125 A CN107267125 A CN 107267125A
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- engine coolant
- environmental friendly
- silicate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/20—Antifreeze additives therefor, e.g. for radiator liquids
Abstract
The present invention discloses a kind of environmental friendly, anti-corrosive erosion engine coolant, counts by weight, the engine coolant includes following components：30~50 parts of ethylene glycol, 60~90 parts of propane diols, 0.5~2 part of ternary polycarboxylic acids, 0.01~0.05 part of silicate, 0.02~0.05 part of silicate stabilizers, 0.5~1 part of glycerine, 0.5~2 part of citric acid, 1~2 part of high molecular polymer, EDTA Al0.5~1 part, 0.05~0.1 part of defoamer, 0.1~0.5 part of vapor-phase inhibitor, 0.5~1 part of coloring agent, 20~40 parts of deionized water.Pass through each component mating reaction; improve the antifreeze and anti-boiling function of coolant; can be in engine surface formation multilayer resist; multiple protective is carried out to metal surface surface; improve the structure property of coolant; greatly the spot corrosion of reduction metal surface and cavitation corrosion, all have good corrosion-suppressing effect to red copper, weldering one-tin brass, steel, cast iron, aluminium alloy, silico-aluminum, aluflex etc..
Description
Technical field
The present invention relates to engine coolant technical field, and in particular to a kind of environmental friendly, anti-corrosive loses engine coolant.
Background technology
Engine coolant is used to take away fuel combustion in engine working process and produces substantial amounts of heat, so as to ensure hair
Motivation steady operation at moderate temperatures.
The engine coolant used on the market is mostly the aqueous solution of ethylene glycol, and water is used as main cooling medium, second two
Alcohol is used to reduce the freezing point of coolant, but its boiling point elevation to coolant is little.Coolant sheet is using process as alkalescence
In produce acidic materials with the gradually oxidation of ethylene glycol, the pH value of coolant can be reduced, increase coolant is to metal parts
Corrosion.In order to ensure each metal parts of engine-cooling system not cooled corrosion in use, generally in coolant
It is middle to add various corrosion inhibiter.Common corrosion inhibition additive generally include borax, phosphate, nitrite, nitrate, molybdate,
Silicate etc., borax is cheap, to preventing iron corrosion especially effective, while there is good cushioning effect, but borax
Promote the heat transfer corrosion of aluminium alloy, also certain toxicity, so modern coolant much requires not borax；Phosphate is originated
It is abundant, there is good corrosion inhibition to ferrous metal, but phosphate easily generates incrustation scale with the calcium in water, magnesium ion reaction, and it is right
Environment also has harmful effect, can cause body eutrophication, therefore using being restricted；Nitrite is to preventing cast iron cylinder liner
In spot corrosion have good result, but it is a kind of risky corrosion inhibiter, and concentration cannot be below critical concentration when using, and otherwise can add
Fast metal erosion；Also contain amines additives, the basicity value for adjusting coolant, but amine in the inorganic salt type coolant of part to add
Plus on the one hand agent can increase the corrosion of metallic copper, brass, on the other hand easily reacted with nitrite and produce strong carcinogenic nitrosamine.
Therefore, the protection to different metal of inorganic salt type coolant is difficult to balance, and there is environmental issue.Therefore, there is no it is a kind of into
Divide environmental protection and there is the engine coolant of anticorrosion ability to various metals.
The content of the invention
In view of this, the application provides a kind of environmental friendly, anti-corrosive erosion engine coolant, by each component mating reaction, carries
The antifreeze and anti-boiling function of high coolant, can be carried out in engine surface formation multilayer resist to metal surface surface
Multiple protective, improve coolant structure property, greatly reduction metal surface spot corrosion and cavitation corrosion, to red copper, scolding tin,
Brass, steel, cast iron, aluminium alloy, silico-aluminum, aluflex etc. all have good corrosion-suppressing effect.
To solve above technical problem, the technical scheme that the present invention is provided is a kind of environmental friendly, anti-corrosive erosion engine cool
Liquid, is counted by weight, and the engine coolant includes following components：30~50 parts of ethylene glycol, 60~90 parts of propane diols, three
First 0.5~2 part of polycarboxylic acids, 0.01~0.05 part of silicate, 0.02~0.05 part of silicate stabilizers, 0.5~1 part of glycerine, lemon
0.5~2 part of lemon acid, 1~2 part of high molecular polymer, 0.5~1 part of EDTA-Al, 0.05~0.1 part of defoamer, vapor-phase inhibitor
0.1~0.5 part, 0.5~1 part of coloring agent, 20~40 parts of deionized water.
By above technical scheme, using ethylene glycol and propane diols as cooling agent, freezing point is reduced by propane diols, simultaneously
Boiling point is improved, the antifreeze and anti-boiling function of coolant is improved, the use of ethylene glycol can be reduced, while reducing ethylene glycol to hair
Motivation cooling system corrosion of metal；Ternary polycarboxylic acids can form adsorbed film in metal surface, have preferably to metal surface
Protective effect, while can strengthen the stability of coolant, improves the life-span of coolant；Silicate can be formed in metal surface
Deposition film, is a kind of cathodic corrosion inhibitor, can lower the corrosion of metal surface, because silicate is under certain acid-base value, in water
In be hydrolyzed into hydroxyl on orthosilicic acid, silicon atom can dehydrating condensation, generate latticed silica crystals, form gel and sink
Form sediment, therefore add silicate stabilizers, it is to avoid liquid is muddy caused by producing gel precipitation, and to the shadow of engine components
Ring；High molecular polymer can form one layer of fine and close diaphragm in metal surface, reduce rate of corrosion；Citric acid can be in high score
Sub- polymeric protective film surface forms organic acid diaphragm, cast iron, steel, the corrosion of copper metal material is effectively prevented, while can
The stability of silicate is improved, its probability for producing gel precipitation is further reduced；EDTA-Al can effectively improve coolant
Corrosion inhibitive function, is oxygen-enriched system during engine work, in coolant, and EDTA-Al can be aoxidized and is deposited on metal surface,
One layer of fine and close oxide-film is formed, prevents oxygen from being diffused into metal surface and occurs cathodic polarization reaction, it is to avoid corrosion of metal；It is sweet
Oil, ternary polycarboxylic acids and high molecular polymer synergy, can further improve the structure property of coolant, substantially reduce
Spot corrosion of the coolant to engine-cooling system, improves the suppression protective value to cavitation corrosion；Because coolant is in work
During can produce foam, the presence of foam can accelerate corrosion of metal, therefore by the addition of defoamer, bubble is reduced or avoided
Foam is produced, and reduces metal erosion probability；Vapor-phase inhibitor can prevent the steam that engine coolant is produced to engine interior
The corrosion of part, while preventing metal from changing colour；The addition of coloring agent can be easy to whether observation coolant is revealed, or and engine
Other liquid phases are distinguished, it is to avoid obscured.More than being based on, technical scheme passes through above each component mating reaction, Neng Gou
Engine surface formation multilayer resist, carries out multiple protective to metal surface surface, greatly reduces the point of metal surface
Erosion and cavitation corrosion；Above various ingredients comprehensive function, can further improve the structure property of coolant, and reduction corrosion is several
Rate, all there is corrosion well to suppress effect red copper, weldering one-tin brass, steel, cast iron, aluminium alloy, silico-aluminum, aluflex etc.
Really；Furthermore it is possible to the antifreeze and anti-boiling function of coolant；Without amine substance, nitrate, nitrite, phosphate, boric acid
The heavy metal such as the toxicity such as salt are big, contaminative is strong material and molybdenum, vanadium, it is more environmentally-friendly.
It is preferred that, count by weight, the engine coolant includes following components：35~40 parts of ethylene glycol, the third two
70~80 parts of alcohol, 0.5~1 part of ternary polycarboxylic acids, 0.02~0.04 part of silicate, 0.02~0.04 part of silicate stabilizers are sweet
0.6~0.8 part of oil, 0.1~0.15 part of citric acid, 1.2~1.8 parts of high molecular polymer, 0.6~0.8 part of EDTA-Al, froth breaking
0.08~0.1 part of agent, 0.2~0.4 part of vapor-phase inhibitor, 0.6~0.8 part of coloring agent, 25~35 parts of deionized water.
It is more highly preferred to, counts by weight, the engine coolant includes following components：38 parts of ethylene glycol, the third two
75 parts of alcohol, 0.8 part of ternary polycarboxylic acids, 0.03 part of silicate, 0.03 part of silicate stabilizers, 0.7 part of glycerine, citric acid 0.12
Part, 1.5 parts of high molecular polymer, 0.7 part of EDTA-Al, 0.09 part of defoamer, 0.3 part of vapor-phase inhibitor, 0.7 part of coloring agent,
30 parts of deionized water.
It is preferred that, count by weight, the engine coolant also includes 0.5~2 part of pH, the pH value
Buffer is borate.PH is conducive to the control of pH value, in larger pH excursions also effectively, effectively improves
The reserve alkalinity of coolant.
It is preferred that, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 6~7.
It is preferred that, the silicate is at least one of sodium metasilicate, potassium silicate, sodium metasilicate.
It is preferred that, the silicate stabilizers are styrene siloxanes, phenyl siloxane.
It is preferred that, the high molecular polymer is any one in acrylate, acrylonitrile.
It is preferred that, the defoamer is polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, gathered
Any one in oxypropylene glycerin ether, polyoxyethylene polyoxypropylene glycerin ether, dimethyl silicone polymer.
It is preferred that, the vapor-phase inhibitor is isopropyl benzoate, methyl cinnamate, ethyl cinnamate, dihydro Chinese cassia tree
Any one in acetoacetic ester.
Based on described above, compared with prior art, its advantage is the application：(1) each component mating reaction, energy
It is enough to form multilayer resist in engine surface, multiple protective is carried out to metal surface surface, metal surface is greatly reduced
Spot corrosion and cavitation corrosion；(2) each component comprehensive function, can further improve the structure property of coolant, and reduction corrosion is several
Rate；(3) the application coolant all has very to red copper, weldering one-tin brass, steel, cast iron, aluminium alloy, silico-aluminum, aluflex etc.
Good corrosion-suppressing effect；(4) the antifreeze and anti-boiling function of coolant can be improved；(5) without amine substance, nitrate,
The heavy metal such as the toxicity such as nitrite, phosphate, borate are big, contaminative is strong material and molybdenum, vanadium, it is more environmentally-friendly；(6) energy
Enough effectively improve the reserve alkalinity of coolant.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
Embodiment 1
A kind of environmental friendly, anti-corrosive erosion engine coolant described in the present embodiment, is counted by weight, including following components：
38 parts of ethylene glycol, 75 parts of propane diols, 0.8 part of ternary polycarboxylic acids, 0.03 part of potassium silicate, 0.03 part of styrene siloxanes, glycerine 0.7
Part, 0.12 part of citric acid, 1.5 parts of acrylate, 0.7 part of EDTA-Al, 0.09 part of polyoxyethylene polyoxypropylene pentaerythrite ether,
0.3 part of isopropyl benzoate, 0.7 part of coloring agent, 0.5 part of Boratex, 30 parts of deionized water.
Wherein, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 6.
Above component is prepared according to conventional engine cooling liquid and preparation method thereof and produced.
The Testing index of engine coolant described in the present embodiment such as table 1：
The Testing index of the engine coolant of 1 embodiment of table 1
Embodiment 2
A kind of environmental friendly, anti-corrosive erosion engine coolant described in the present embodiment, is counted by weight, including following components：
30 parts of ethylene glycol, 60 parts of propane diols, 0.5 part of ternary polycarboxylic acids, 0.01 part of sodium metasilicate, 0.02 part of phenyl siloxane, glycerine 0.5
Part, 0.5 part of citric acid, 1 part of acrylonitrile, 0.5 part of EDTA-Al, 0.05 part of polyoxyethylene polyoxy propyl alcohol amidogen ether, polyoxyethylene gathers
0.1 part of oxygen propyl alcohol amidogen ether, 0.5 part of coloring agent, 0.5 part of potassium borate, 20 parts of deionized water.
Wherein, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 7.
Above component is prepared according to conventional engine cooling liquid and preparation method thereof and produced.
The Testing index of engine coolant described in the present embodiment such as table 2：
The Testing index of the engine coolant of 2 embodiment of table 2
Embodiment 3
A kind of environmental friendly, anti-corrosive erosion engine coolant described in the present embodiment, is counted by weight, including following components：
50 parts of ethylene glycol, 90 parts of propane diols, 2 parts of ternary polycarboxylic acids, 0.05 part of sodium metasilicate, 0.05 part of styrene siloxanes, glycerine 1
Part, 2 parts of citric acid, 2 parts of acrylonitrile, 1 part of EDTA-Al, 0.1 part of polypropylene glycerol aether, 0.5 part of ethyl cinnamate, coloring agent
1 part, 2 parts of Boratex, 40 parts of deionized water.
Wherein, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 7.
Above component is prepared according to conventional engine cooling liquid and preparation method thereof and produced.
The Testing index of engine coolant described in the present embodiment such as table 3：
The Testing index of the engine coolant of 3 embodiment of table 3
Embodiment 4
A kind of environmental friendly, anti-corrosive erosion engine coolant described in the present embodiment, is counted by weight, including following components：
35 parts of ethylene glycol, 70 parts of propane diols, 0.5 part of ternary polycarboxylic acids, 0.02 part of sodium metasilicate, 0.02 part of phenyl siloxane, glycerine 0.6
Part, 0.1 part of citric acid, 1.2 parts of acrylate, 0.6 part of EDTA-Al, 0.08 part of polyoxyethylene polyoxypropylene glycerin ether, Chinese cassia tree
0.2 part of acetoacetic ester, 0.6 part of coloring agent, 0.5 part of Boratex, 25 parts of deionized water.
Wherein, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 6.
Above component is prepared according to conventional engine cooling liquid and preparation method thereof and produced.
The Testing index of engine coolant described in the present embodiment such as table 4：
The Testing index of the engine coolant of 4 embodiment of table 4
Embodiment 5
A kind of environmental friendly, anti-corrosive erosion engine coolant described in the present embodiment, is counted by weight, including following components：
40 parts of ethylene glycol, 80 parts of propane diols, 1 part of ternary polycarboxylic acids, 0.04 part of sodium metasilicate, 0.04 part of phenyl siloxane, glycerine 0.8
Part, 0.15 part of citric acid, 1.8 parts of acrylate, 0.8 part of EDTA-Al, 0.1 part of dimethyl silicone polymer, dihydro cinnamic acid
0.4 part of ethyl ester, 0.8 part of coloring agent, 2 parts of potassium borate, 35 parts of deionized water.
Wherein, the ternary polycarboxylic acids is that melamine and straight chain fatty acid addition are obtained, and the degree of polymerization is 7.
Above component is prepared according to conventional engine cooling liquid and preparation method thereof and produced.Engine coolant described in the present embodiment
Testing index such as table 5：
The Testing index of the engine coolant of 5 embodiment of table 5
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of environmental friendly, anti-corrosive loses engine coolant, it is characterised in that：Count by weight, the engine coolant bag
Include following components：30~50 parts of ethylene glycol, 60~90 parts of propane diols, 0.5~2 part of ternary polycarboxylic acids, silicate 0.01~0.05
Part, 0.02~0.05 part of silicate stabilizers, 0.5~1 part of glycerine, 0.5~2 part of citric acid, 1~2 part of high molecular polymer,
0.5~1 part of EDTA-Al, 0.05~0.1 part of defoamer, 0.1~0.5 part of vapor-phase inhibitor, 0.5~1 part of coloring agent, deionization
20~40 parts of water.
2. a kind of environmental friendly, anti-corrosive erosion engine coolant according to claim 1, it is characterised in that：By weight
Meter, the engine coolant includes following components：35~40 parts of ethylene glycol, 70~80 parts of propane diols, ternary polycarboxylic acids 0.5~
1 part, 0.02~0.04 part of silicate, 0.02~0.04 part of silicate stabilizers, 0.6~0.8 part of glycerine, citric acid 0.1~
0.15 part, 1.2~1.8 parts of high molecular polymer, 0.6~0.8 part of EDTA-Al, 0.08~0.1 part of defoamer, vapor-phase inhibitor
0.2~0.4 part, 0.6~0.8 part of coloring agent, 25~35 parts of deionized water.
3. a kind of environmental friendly, anti-corrosive erosion engine coolant according to claim 2, it is characterised in that：By weight
Meter, the engine coolant includes following components：38 parts of ethylene glycol, 75 parts of propane diols, 0.8 part of ternary polycarboxylic acids, silicate
0.03 part, 0.03 part of silicate stabilizers, 0.7 part of glycerine, 0.12 part of citric acid, 1.5 parts of high molecular polymer, EDTA-Al0.7
Part, 0.09 part of defoamer, 0.3 part of vapor-phase inhibitor, 0.7 part of coloring agent, 30 parts of deionized water.
4. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Press
Parts by weight meter, the engine coolant also includes 0.5~2 part of pH, and the pH is borate.
5. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
It is that melamine and straight chain fatty acid addition are obtained to state ternary polycarboxylic acids, and the degree of polymerization is 6~7.
6. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
It is at least one of sodium metasilicate, potassium silicate, sodium metasilicate to state silicate.
7. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
Silicate stabilizers are stated for styrene siloxanes, phenyl siloxane.
8. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
It is any one in acrylate, acrylonitrile to state high molecular polymer.
9. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
Defoamer is stated for polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether, polyoxy
Any one in propylene polyoxyethylene glycerol ether, dimethyl silicone polymer.
10. a kind of environmental friendly, anti-corrosive erosion engine coolant according to any one of claims 1 to 3, it is characterised in that：Institute
Vapor-phase inhibitor is stated to be any one in isopropyl benzoate, methyl cinnamate, ethyl cinnamate, dihydro ethyl cinnamate
Kind.
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Cited By (6)
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| CN110157392A (en) * | 2019-05-28 | 2019-08-23 | 司能石油化工有限公司 | A kind of environment protecting type engine coolant liquid and preparation method thereof |
| US20190309200A1 (en) * | 2018-04-04 | 2019-10-10 | Clement R. Hipple | Head gasket correction coagulation |
| CN111548774A (en) * | 2020-05-14 | 2020-08-18 | 广研德孚科技发展(深圳)有限公司 | Cooling liquid for plug-in hybrid electric vehicle and preparation process thereof |
| CN111592864A (en) * | 2020-05-19 | 2020-08-28 | 广研德孚科技发展(深圳)有限公司 | High-boiling-point cooling liquid |
| CN111621266A (en) * | 2020-05-18 | 2020-09-04 | 广研德孚科技发展(深圳)有限公司 | Cooling liquid for electric automobile and preparation process thereof |
| CN113354182A (en) * | 2021-08-10 | 2021-09-07 | 中南大学 | Method for mineralizing, regulating, purifying and separating chromium in chromium-containing waste liquid |
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| CN113354182A (en) * | 2021-08-10 | 2021-09-07 | 中南大学 | Method for mineralizing, regulating, purifying and separating chromium in chromium-containing waste liquid |
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Application publication date: 20171020 |
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