CN107189771A - A kind of engine coolant - Google Patents
A kind of engine coolant Download PDFInfo
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- CN107189771A CN107189771A CN201710503060.9A CN201710503060A CN107189771A CN 107189771 A CN107189771 A CN 107189771A CN 201710503060 A CN201710503060 A CN 201710503060A CN 107189771 A CN107189771 A CN 107189771A
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- engine coolant
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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
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a kind of engine coolant, belong to chemical technology field.The present invention is by itaconic acid, after absolute ethyl alcohol and TGA mixing, add catalyst reaction, obtain after product obtaining concentrate through concentrated by rotary evaporation, sulfuric acid solution is sequentially added after again mixing L ascorbic acid and benzoic acid and frozen water reaction is filtered, obtain filtrate, again by ethylene glycol, filtrate, the heating mixing such as concentrate and auxiliary agent, last natural cooling can obtain engine coolant, gained coolant of the invention also has good storage stability and antirust ability while with preferable cooling performance, effectively extend the usage cycles of coolant, preferable protective action is served to engine.
Description
Technical field
The invention discloses a kind of engine coolant, belong to chemical technology field.
Background technology
In the combustion process of combustion mixture, the gas temperature in cylinder can reach 1700~2500 DEG C.To ensure vapour
Car engine normal work, it is necessary to cooled down to the part worked under the high temperature conditions.Current automobile engine is widely used
Compulsory circulative cooling system, coolant is that a kind of working media of hot parts heat is taken away in engine-cooling system.
Engine coolant is a kind of low freezing point, high boiling liquid, is the essential work of engine work
Medium.It is mainly used in taking away fuel combustion in engine working process and produces substantial amounts of heat, so as to ensure engine suitable
The steady operation at a temperature of.Usual engine coolant is made up of water, anti-icing fluid and additive.According to anti-icing fluid composition not
Together, methanol/ethanol type, ethylene glycol type, propylene glycol and non-alcohol type etc. are divided into again, current the most widely used engine cool
Liquid is mainly ethylene glycol type.As number of patent application CN200710146198.4 discloses " a kind of anti-freeze cooling liquid and its preparation side
Method ", it is made up of ethylene glycol, water, decanedioic acid, sodium metasilicate and defoamer.And for example number of patent application CN201010519667.4
Disclose " a kind of engine coolant and preparation method thereof ", the coolant is by water, ethylene glycol, aliphatic acid, aromatic acid, silicic acid
Salt, additive composition.These engine coolants are respectively provided with good cooling effect, but the antirust ability of coolant is poor,
And due to containing silicate component in coolant, therefore the storage stability of coolant is poor, easily forms precipitation, causes and start
Machine cooling system is blocked, and heat transfer efficiency declines.
Therefore, how to overcome the shortcomings of existing coolant, research and development one kind while with good cooling effect, have concurrently compared with
The coolant of good antirust ability and storage stability, has important practical significance.
The content of the invention
Present invention mainly solves technical problem：It is poor for existing coolant antirust ability, and due in coolant
Containing silicate component, therefore the storage stability of coolant is poor, easily forms precipitation, causes engine-cooling system to block up
Plug, there is provided a kind of engine coolant for the defect that heat transfer efficiency declines.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of engine coolant, includes the raw material of following parts by weight：
15~20 parts of trimethylglycines, 30~40 parts of ethylene glycol, 30~40 parts of water, 3~5 parts of stabilizers, 8~12 parts of filtrates, 5
~8 portions of concentrates, 1~3 part of montmorillonite, 0.3~0.5 part of dispersant and 0.1~0.3 part of defoamer；
Described filtrate is obtained by following steps：After 25~35gL- ascorbic acid and 15~20g benzoic acid are mixed, 0
5~10mL mass fractions are added dropwise at~5 DEG C while stirring for 98% sulfuric acid solution, after completion of dropping, is warming up to 25~30 DEG C, stirs
Mix after 4~5h of reaction, add 50~60g0 DEG C of frozen water, filtered after mixing, obtain filtrate；
Described concentrate is obtained by following steps：By 30~40g itaconic acids, 100~200mL absolute ethyl alcohols and 15~
After the mixing of 20mL TGAs, then 5~8mL catalyst, and 2~3h of stirring reaction at 0~5 DEG C is added dropwise, obtains product, will produce
Thing is concentrated, and obtains concentrate.
Described stabilizer is one or both of 1-hydroxy ethylidene-1,1-diphosphonic acid, ethylenediamine tetramethylene phosphonic acid.
The average grain diameter of described montmorillonite is 20~30nm.
The drop rate of described sulfuric acid solution is 1~3mL/min.
Described catalyst is triethylamine, N, N- dimethyl cyclohexyl amines, N, the one or more in N- dimethyl benzylamines.
Described dispersant is one or both of lauryl sodium sulfate, methyl anyl alcohol.
Described defoamer is in polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether, dimethyl silicone polymer
It is one or more of.
The beneficial effects of the invention are as follows：
（1）The present invention is the trimethylglycine Applicable temperature model using trimethylglycine, water and ethylene glycol as main anti-freeze components
Enclose for -40~120 DEG C, and the boiling point of the mixed liquor of ethylene glycol and water be 129 DEG C, freezing point be -35 DEG C, therefore the present invention it is cold
Freezing liquid has higher boiling point and relatively low freezing point, and the temperature difference is larger, good resistance to frost is made it have, while the sweet ammonia of trimethyl
Acid in chemically and thermally performance is stable, therefore is not likely to produce in storage precipitation, and storage stability is preferable, while surely
The storage stability of antifreezing agent can also be improved by determining the addition of agent because in stabilizer containing a large amount of phosphonyl groups can with water
The metal ion such as calcium, magnesium combine, form stable soluble compound, so prevent anti-freeze components in coolant and calcium,
The metal ions such as magnesium react, and improve the storage stability of coolant；（2）The present invention using itaconic acid as raw material, make itaconic acid with
Michael reaction occurs for TGA, so that sulfydryl is introduced into poly- itaconic acid, element sulphur, oxygen element in modified poly- itaconic acid
It can be adsorbed in the form of chemical bond and form diaphragm in metal surface, it is to avoid engine is by corrosion, while prepared by the present invention
There are multiple adsorption sites in benzoic acid ascorbic acid, diaphragm, and benzoic acid ascorbic acid point are easily formed in metal surface
Hydroxyl in son on lactonic ring can form insoluble complex with the metal ion of engine surface and be covered in engine surface,
So as to play anti-rust action.
Embodiment
30~40g itaconic acids, 100~200mL absolute ethyl alcohols is taken to be added to three mouthfuls of burnings with thermometer and reflux
Bottle in, three-necked flask is placed in frozen water bath, control frozen water bath temperature be 0~5 DEG C, then into three-necked flask addition 15~
After 20mL TGAs, 3~5min of stirring mixing, then dropwise addition 5~8mL catalyst into three-necked flask, it is 1 to control drop rate
~3mL/min, after after catalyst completion of dropping, 2~3h of stirring reaction after reaction terminates, obtains product, product is transferred into rotation
Turn in evaporimeter, 15~20min of concentrated by rotary evaporation under normal temperature, obtain concentrate, then take 25~35gL- ascorbic acid and 15~20g
Benzoic acid is added in the three-necked flask with thermometer and reflux, and three-necked flask is placed in frozen water bath, control
Frozen water bath temperature is 0~5 DEG C, and it is 98% sulfuric acid solution, control that 5~10mL mass fractions are added dropwise into three-necked flask while stirring
Drop rate is 1~3mL/min, after after sulfuric acid solution completion of dropping, being warming up to after 25~30 DEG C, 4~5h of stirring reaction, then to
50~60g0 DEG C of frozen water is added in three-necked flask, stirring 5~10min of mixing refilters, obtains filtrate, finally, by weight
Meter, take 15~20 parts of trimethylglycines, 30~40 parts of ethylene glycol, 30~40 parts of water, 3~5 parts of stabilizers, 8~12 parts of filtrate,
5~8 portions of concentrates, 1~3 part of montmorillonite, 0.3~0.5 part of dispersant and 0.1~0.3 part of defoamer are added in beaker, will be burnt
Cup is placed in water-bath, and it is 30~40 DEG C to control bath temperature, after 15~20min of stirring mixing, is naturally cooled to room temperature, is obtained
Engine coolant.Described catalyst is triethylamine, N, N- dimethyl cyclohexyl amines, N, one kind or several in N- dimethyl benzylamines
Kind.Described stabilizer is one or both of 1-hydroxy ethylidene-1,1-diphosphonic acid, ethylenediamine tetramethylene phosphonic acid.Described dispersant
For one or both of lauryl sodium sulfate, methyl anyl alcohol.Described defoamer is polyoxyethylene polyoxy propyl alcohol amidogen ether, gathered
One or more in oxypropylene glycerin ether, dimethyl silicone polymer.The average grain diameter of described montmorillonite is 20~30nm.
Example 1
30g itaconic acids, 100mL absolute ethyl alcohols is taken to be added in the three-necked flask with thermometer and reflux, by three mouthfuls of burnings
Bottle is placed in frozen water bath, and it is 0 DEG C to control frozen water bath temperature, then adds 15mL TGAs into three-necked flask, stirs mixing
After 3min, then into three-necked flask 5mL triethylamines are added dropwise, controls drop rate for 1mL/min, after after triethylamine completion of dropping,
Stirring reaction 2h, after reaction terminates, obtains product, product is transferred in Rotary Evaporators, concentrated by rotary evaporation 15min under normal temperature,
Concentrate is obtained, then takes 25gL- ascorbic acid and 15g benzoic acid to be added to the three-necked flask with thermometer and reflux
In, and three-necked flask is placed in frozen water bath, it is 0 DEG C to control frozen water bath temperature, and 5mL is added dropwise into three-necked flask while stirring
Mass fraction is 98% sulfuric acid solution, and it is 1mL/min to control drop rate, after after sulfuric acid solution completion of dropping, is warming up to 25 DEG C,
After stirring reaction 4h, then the 50g0 DEG C of frozen water of addition into three-necked flask, stirring mixing 5min, refilter, obtain filtrate, finally,
Count by weight, take 15 parts of trimethylglycines, 30 parts of ethylene glycol, 30 parts of water, 3 parts of 1-hydroxy ethylidene-1,1-diphosphonic acids, 8 parts of filtrates, 5
Part concentrate, 1 part of montmorillonite, 0.3 part of lauryl sodium sulfate and 0.1 part of polyoxyethylene polyoxy propyl alcohol amidogen ether are added to beaker
In, beaker is placed in water-bath, it is 30 DEG C to control bath temperature, after stirring mixing 15min, naturally cools to room temperature, obtain
Engine coolant.The average grain diameter of described montmorillonite is 20nm.
Example 2
35g itaconic acids, 150mL absolute ethyl alcohols is taken to be added in the three-necked flask with thermometer and reflux, by three mouthfuls of burnings
Bottle is placed in frozen water bath, and it is 3 DEG C to control frozen water bath temperature, then adds 18mL TGAs into three-necked flask, stirs mixing
After 4min, then it is added dropwise into three-necked flask 7mLN, N- dimethyl cyclohexyl amines, it is 2mL/min to control drop rate, treats N, N- diformazans
After basic ring hexylamine completion of dropping, stirring reaction 2h after reaction terminates, obtains product, product is transferred in Rotary Evaporators, often
The lower concentrated by rotary evaporation 18min of temperature, obtains concentrate, then take 30gL- ascorbic acid and 18g benzoic acid to be added to thermometer and return
In the three-necked flask for flowing device, and three-necked flask is placed in frozen water bath, control frozen water bath temperature for 3 DEG C, while stirring to
It is 98% sulfuric acid solution that 8mL mass fractions are added dropwise in three-necked flask, and it is 2mL/min to control drop rate, treats that sulfuric acid solution is dripped
Bi Hou, is warming up to after 28 DEG C, stirring reaction 4h, then adds 55g0 DEG C of frozen water into three-necked flask, stirs mixing 8min, after
Filter, obtains filtrate, finally, counts by weight, take 18 parts of trimethylglycines, 35 parts of ethylene glycol, 35 parts of water, 4 parts of hydroxyl second
Pitch di 2 ethylhexyl phosphonic acid, 10 parts of filtrates, 7 portions of concentrates, 2 parts of montmorillonites, 0.4 part of lauryl sodium sulfate and 0.2 part of polyoxypropylene glyceryl
Ether is added in beaker, and beaker is placed in water-bath, and it is 35 DEG C to control bath temperature, after stirring mixing 18min, natural cooling
To room temperature, engine coolant is obtained.The average grain diameter of described montmorillonite is 25nm.
Example 3
40g itaconic acids, 200mL absolute ethyl alcohols is taken to be added in the three-necked flask with thermometer and reflux, by three mouthfuls of burnings
Bottle is placed in frozen water bath, and it is 5 DEG C to control frozen water bath temperature, then adds 20mL TGAs into three-necked flask, stirs mixing
After 5min, then it is added dropwise into three-necked flask 8mLN, N- dimethyl benzylamines, it is 3mL/min to control drop rate, treats N, N- dimethyl
After benzylamine completion of dropping, stirring reaction 3h after reaction terminates, obtains product, product is transferred in Rotary Evaporators, under normal temperature
Concentrated by rotary evaporation 20min, obtains concentrate, then take 35gL- ascorbic acid and 20g benzoic acid to be added to thermometer and backflow dress
In the three-necked flask put, and three-necked flask is placed in frozen water bath, it is 5 DEG C to control frozen water bath temperature, while stirring to three mouthfuls
It is 98% sulfuric acid solution that 10mL mass fractions are added dropwise in flask, and it is 3mL/min to control drop rate, treats sulfuric acid solution completion of dropping
Afterwards, it is warming up to after 30 DEG C, stirring reaction 5h, then 60g0 DEG C of frozen water is added into three-necked flask, stirs mixing 10min, refilter,
Filtrate is obtained, finally, is counted by weight, 20 parts of trimethylglycines, 40 parts of ethylene glycol, 40 parts of water, 5 parts of ethylenediamine tetraacetic Asias are taken
Methylphosphonic acid, 12 parts of filtrates, 8 portions of concentrates, 3 parts of montmorillonites, 0.5 part of methyl anyl alcohol and 0.3 part of dimethyl silicone polymer are added
Into beaker, beaker is placed in water-bath, it is 40 DEG C to control bath temperature, after stirring mixing 20min, naturally cools to room
Temperature, obtains engine coolant.The average grain diameter of described montmorillonite is 30nm.
Comparative example：The automobile engine cooling liquid of Hebei Automobile Products Science and Technology Ltd. production.
Respectively by engine coolant made from present example 1~3 and the automobile engine cooling liquid of comparative example in temperature
Spend to stand 3~8 weeks under the conditions of 88 DEG C, and observe and record the precipitation status of coolant in time, as a result as shown in table 1：
Table 1
As it can be seen from table 1 engine coolant produced by the present invention has preferable storage stability, it is difficult to form precipitation,
Effectively extend the usage cycles of coolant.
According to ASTMD1384 standards, engine coolant made from present example 1~3 and the automobile of comparative example are sent out
Motivation coolant carries out corrosion of metal detection, and specific detecting step is：By size be length × width x thickness be 50mm × 30mm ×
2mm copper sheet, latten(-tin), cast iron piece, aluminium flake, solder plate and steel disc is separately immersed in coolant, under conditions of 88 DEG C
Immersion 14 days, after immersion terminates, determines the weight change of copper sheet, latten(-tin), cast iron piece, aluminium flake, solder plate and steel disc respectively,
Its result is as shown in table 2：
Table 2
From table 2 it can be seen that present invention gained engine coolant has preferable antiseptic and rustproof ability, engine is fully met
Use requirement.
Claims (7)
1. a kind of engine coolant, it is characterised in that include the raw material of following parts by weight：
15~20 parts of trimethylglycines, 30~40 parts of ethylene glycol, 30~40 parts of water, 3~5 parts of stabilizers, 8~12 parts of filtrates, 5
~8 portions of concentrates, 1~3 part of montmorillonite, 0.3~0.5 part of dispersant and 0.1~0.3 part of defoamer；
Described filtrate is obtained by following steps：After 25~35gL- ascorbic acid and 15~20g benzoic acid are mixed, 0
5~10mL mass fractions are added dropwise at~5 DEG C while stirring for 98% sulfuric acid solution, after completion of dropping, is warming up to 25~30 DEG C, stirs
Mix after 4~5h of reaction, add 50~60g0 DEG C of frozen water, filtered after mixing, obtain filtrate；
Described concentrate is obtained by following steps：By 30~40g itaconic acids, 100~200mL absolute ethyl alcohols and 15~
After the mixing of 20mL TGAs, then 5~8mL catalyst, and 2~3h of stirring reaction at 0~5 DEG C is added dropwise, obtains product, will produce
Thing is concentrated, and obtains concentrate.
2. a kind of engine coolant according to claim 1, it is characterised in that described stabilizer is hydroxy ethylidene
One or both of di 2 ethylhexyl phosphonic acid, ethylenediamine tetramethylene phosphonic acid.
3. a kind of engine coolant according to claim 1, it is characterised in that the average grain diameter of described montmorillonite
For 20~30nm.
4. a kind of engine coolant according to claim 1, it is characterised in that the dropwise addition speed of described sulfuric acid solution
Rate is 1~3mL/min.
5. a kind of engine coolant according to claim 1, it is characterised in that described catalyst be triethylamine,
One or more in N, N- dimethyl cyclohexyl amine, N, N- dimethyl benzylamines.
6. a kind of engine coolant according to claim 1, it is characterised in that described dispersant is dodecyl
One or both of sodium sulphate, methyl anyl alcohol.
7. a kind of engine coolant according to claim 1, it is characterised in that described defoamer is polyoxyethylene
One or more in polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether, dimethyl silicone polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503060.9A CN107189771A (en) | 2017-06-27 | 2017-06-27 | A kind of engine coolant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503060.9A CN107189771A (en) | 2017-06-27 | 2017-06-27 | A kind of engine coolant |
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| CN107189771A true CN107189771A (en) | 2017-09-22 |
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| CN201710503060.9A Pending CN107189771A (en) | 2017-06-27 | 2017-06-27 | A kind of engine coolant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109810677A (en) * | 2019-02-15 | 2019-05-28 | 畅诺冷热控制技术(上海)有限公司 | A kind of new-energy automobile coolant liquid and preparation method thereof |
| US11490618B2 (en) | 2018-06-04 | 2022-11-08 | Conopco, Inc. | Preservation compositions |
| EP3773921B1 (en) * | 2018-06-04 | 2023-03-01 | Unilever IP Holdings B.V. | Preservation compositions |
| US11872296B2 (en) | 2018-06-04 | 2024-01-16 | Conopco, Inc. | Preservation compositions |
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| CN102286270A (en) * | 2010-06-19 | 2011-12-21 | 比亚迪股份有限公司 | Engine cooling liquid and preparation method thereof |
| WO2017009652A1 (en) * | 2015-07-14 | 2017-01-19 | Kilfrost Group Plc | Heat transfer fluid composition and use |
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2017
- 2017-06-27 CN CN201710503060.9A patent/CN107189771A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286270A (en) * | 2010-06-19 | 2011-12-21 | 比亚迪股份有限公司 | Engine cooling liquid and preparation method thereof |
| WO2017009652A1 (en) * | 2015-07-14 | 2017-01-19 | Kilfrost Group Plc | Heat transfer fluid composition and use |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11490618B2 (en) | 2018-06-04 | 2022-11-08 | Conopco, Inc. | Preservation compositions |
| EP3773921B1 (en) * | 2018-06-04 | 2023-03-01 | Unilever IP Holdings B.V. | Preservation compositions |
| US11684557B2 (en) | 2018-06-04 | 2023-06-27 | Conopco, Inc. | Preservation compositions |
| US11872296B2 (en) | 2018-06-04 | 2024-01-16 | Conopco, Inc. | Preservation compositions |
| CN109810677A (en) * | 2019-02-15 | 2019-05-28 | 畅诺冷热控制技术(上海)有限公司 | A kind of new-energy automobile coolant liquid and preparation method thereof |
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