CN1872943A - Cooling fluid of engine - Google Patents
Cooling fluid of engine Download PDFInfo
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- CN1872943A CN1872943A CN 200610047082 CN200610047082A CN1872943A CN 1872943 A CN1872943 A CN 1872943A CN 200610047082 CN200610047082 CN 200610047082 CN 200610047082 A CN200610047082 A CN 200610047082A CN 1872943 A CN1872943 A CN 1872943A
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- engine coolant
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Abstract
This invention relates to an engine cooling liquid, which comprises: propylene glycol, deionized water, pyrrole compound, polymer, polyacrylic acid, and sodium benzoate, purging agent AEO9, monobasic acid, dibasic salt, 4-hydroxy butyl benzoate, antifoamer and fluorescent green. The cooling liquid can form two compact protecting films on metal surface: a polymer film adsorbed on the metal surface and an organic acid film on the polymer film. The two protecting films can protect the metals from corrosion by water and propylene glycol. Besides, the cooling liquid also has good anti-freezing, anti-boiling, anti-contamination, anti-leaking, anti-rusting and anti-corrosion performance.
Description
Technical field: the present invention relates to the engine coolant that a kind of cooling system for motor vehicle uses, particularly a kind of engine coolant that contains propylene glycol.
Background technology: engine-cooling system is the important component part of motor vehicle, therefore, along with increasing of vehicle, the cooling fluid that cooling system uses also increases thereupon, big problem of existing at home cooling fluid ubiquity is: the cooling fluid major ingredient is low mass molecule alcohols such as ethylene glycol, methyl alcohol, not environmental protection, biological degradability are poor, and major part is the inorganic salt type cooling fluid, work-ing life is short, defectives such as easy precipitation, the industrial chemicals that amine salt, nitrite etc. can cause carcinogenic substance is contained in the what is more important the inside.
American National institute of industrial health (NIOSH), Japanese testing of materials association point out amido alcohol and the composite use of nitrite in succession, can generate nitramine class carcinogenic substance, American-European subsequently, Japanese various countries have proposed restriction to amino-type, nitrite type cooling fluid.Because the ethylene glycol biological degradability is than propylene glycol difference, the nineties, some countries of Japan and West Europe were decided to be propylene glycol with the cooling fluid major ingredient.
Hiroshima,Japan Mazda 6 former factories have made strict demand to entrucking with cooling fluid, main frostproofer is a propylene glycol in its composition, and wherein additive should not contain the industrial chemicals that silicate, borate, nitrate, amine salt, oxynitride, molybdate etc. may cause precipitation or generate carcinogenic substance.
The automobile engine cooling liquid research of China is started late.Market cooling fluid main product is inorganic salt, inorganic organic composite type, and contains very difficulty of carcinogenic substance, easily generation precipitation, froth breaking in most of cooling fluid, and air pocket is serious; Adopt organic cooling fluid of propylene glycol also not have one piece of complete auspicious document of stating at home, as the patent No. is that 01131412.5 cooling fluid patent only is to use that ethylene glycol and organic additive are composite to have gone out complete organic cooling fluid, also be to use organism and ethylene glycol composite abroad as United States Patent (USP) 4,587,028,4,647,392, but its organics additive consumption is big, cost is high, also has the possibility of contaminate environment.
Summary of the invention:, the invention provides a kind of organic composite type engine coolant that the allotment of propylene glycol, high molecular polymer forms that contains in order to address the above problem.
Technical scheme of the present invention is: a kind of engine coolant, and by propylene glycol, deionized water, azole compounds, high molecular polymer, polyacrylic acid, Sodium Benzoate, detergent AEO
9, monoprotic acid, dicarboxylate, 4-butoben, defoamer, fluorescence green forms, the weight part proportioning of each component is as follows:
30～60 parts of propylene glycol
36.5～69 parts of deionized waters
0.05～0.22 part of azole compounds
0.60～1.60 part of high molecular polymer
0.05～0.20 part of polyacrylic acid
0.15～0.90 part of Sodium Benzoate
Detergent AEO
90.05～0.10 part
0.05～0.25 part in monoprotic acid
0.05～0.25 part of dicarboxylate
0.0001～0.0002 part of 4-butoben
0.0001～0.0002 part of defoamer
0.0001～0.0002 part of fluorescence green
A kind of in described azole compounds selected from mercapto benzothiazole, benzotriazole, tolyl-triazole, the polyvinylpyrrolidone, preferred benzotriazole.
Described high molecular polymer is the multipolymer of high molecular polyether and lipid acid, the preparation method is as follows: each proportion of raw materials adds by weight, is catalyzer with 30～50 parts of oxyethane and 25～45 parts of lauryl alcohols with 0.2～0.4 part of potassium hydroxide, in autoclave, react, refluxed 2～3 hours, temperature of reaction is controlled at 90～120 ℃, vacuum degree control is at 0.2～0.6MPa, under vacuum stirring, react, after making the addition mole number of oxyethane be 30～50mol, temperature of reaction is reduced to 40～60 ℃, at the laurostearic acid that in reactor, adds 50～60 parts, rely on the catalyst performance that laurostearic acid itself is had, it is the raw material of participating in reaction, it also is the catalyzer in the reaction process, be warming up to 70～90 ℃, vacuum degree control is under 0.2～0.6MPa, react after 1～2 hour, be warming up to 100～120 ℃, pressure-controlling is at 0.65～0.85MPa, behind the constant temperature 30～45 minutes, be warming up to 110～130 ℃, pressure-controlling under 0.85～0.95MPa condition, 0.2～0.3 part of water that underpressure distillation reflects, make the volumetric concentration＜50ppm of water in products content, can obtain high molecular polymer.
Described monoprotic acid is selected from a kind of in oxalic acid, enanthic acid, n-caprylic acid or the capric acid, preferred n-caprylic acid.
Described dicarboxylate is selected from a kind of in disodium succinate salt, pentanedioic acid disodium salt, hexanodioic acid disodium salt or the sebacic acid disodium salt, preferred sebacic acid disodium salt.
Described fluorescence green is that water-soluble lemon yellow molecular formula is C
16H
12N
4O
9S
23Na and water-soluble light blue molecular formula are C
37H
36N
2O
9S
3The ratio of 2Na by weight 1～2: 1 composite and the blending fluorescence green.
The described chemical name of cutting infusion is a polyoxyethylene polyoxypropylene monobutyl ether
Described detergent AEO
9Be aliphatic alcohol polyethenoxy (9) ether.
After each component of described composition takes by weighing by weight ratio, 35 ± 5 ℃ mix down stir 30 minutes after, after testing, filter, packing, get final product.
The invention has the beneficial effects as follows: propylene glycol can reduce freezing point, improves boiling point, and biological degradability is better than ethylene glycol, thereby to select propylene glycol for use be the cooling fluid main raw material, has improved antifreeze, the anti-function of boiling of cooling fluid; Select for use polyacrylic acid as water antisludging agent, improved the anti-scaling function of cooling fluid; Select detergent AEO for use
9(that is aliphatic alcohol polyethenoxy (9) ether) as the scale removal detergent, has improved the descaling function of cooling fluid; Select for use high molecular polymer among the present invention as the stability of leakproof, buffering, adjusting pH value, control additive and form one deck polymer protective film, improved the safety in utilization of cooling fluid; Azole compounds, Sodium Benzoate, monoprotic acid, dicarboxylate have improved antirust, anti-corrosion function as antirust, anticorrosive agent; Select for use 4-butoben (that is Tegosept B) as sterilant, improved sterilizing function.May not cause that the industrial chemicals and the selected raw material biological degradability of precipitation or generation carcinogenic substance are good because selected raw material does not contain silicate, borate, nitrate, amine salt, oxynitride, molybdate etc., solve the environmental issue of current domestic market cooling fluid.Owing to wherein contain high molecular polymer, scale removal detergent, organic acid and salt thereof; form two-layer fine and close protective membrane in the metallic surface; the first layer forms one deck polymer adsorption film for the high molecular polymer among the present invention is adsorbed on the metallic surface; the second layer relies on organic acid to form one deck organic acid protective membrane on the high molecular polymer surface; rely on the duplicate protection of this two membranes to stop water and propylene glycol to corrosion of metal; and prolong the work-ing life of cooling fluid, the driving use reaches 200,000 kilometers and does not corrode water tank.Quality product of the present invention meets or surpasses every technical requirement among SH0521-1999, JT225-1996, the CAS 112-2005 Japan JISK2234 U.S. ASTM D3306.
Engine coolant of the present invention is applicable to the weather condition of different areas can substitute import environment-protective motor cooling fluid fully.
Engine coolant of the present invention has obtained at the needed technical recipe of technical elements through a large amount of orthogonal experiments, and contrast experiment's data are as follows:
Table one
| Analysis project | Japan TCL cooling fluid | Japan's Mazda 6 cooling fluids | The self-control cooling fluid | CAS112-2005 | |
| Freezing point ℃ | -36.5 | -36 | -36 | Be not higher than-35 | |
| Boiling point ℃ | 107.5 | 108 | 108 | Be not less than 107 | |
| PH value | 8.9 | 8.2 | 8.4 | 7.5～11.0 | |
| Reserve alkalinity | 14.2 | 8.6 | 8.8 | Report | |
| Organic coating is influenced | Do not have | Do not have | Do not have | Do not have | |
| 88 ± 2 ℃ of 336h of glassware metallic corrosion SH0085 | Copper | 1.2 | +1.2 | 0.6 | ±10 |
| Brass | 0.8 | +3.5 | +0.3 | ±10 | |
| Steel | 0.2 | +0.4 | +0.6 | ±10 | |
| Cast iron | 0.8 | 2.3 | 0.4 | ±10 | |
| Scolding tin | 2.5 | +15.2 | +0.8 | ±30 | |
| Cast aluminium | 5.8 | 2.8 | 0.6 | ±30 | |
| Average weightless | 1.88 | -2.53 | -0.22 | ||
From the homemade as can be seen engine coolant of table one data to the corrosion of metal testing plate well below standard-required, the most outstanding to the protection of aluminium and scolding tin.
Adopt the engine coolant of such scheme production to compare following advantage and effect with existing domestic cooling fluid technology:
1, do not contain inorganic salt and carcinogenic substance, help environment protection and human body health;
2, scientific formulation is reasonable, fully metal weightlessness has been dropped to lower-most point;
3, long-term a large amount of import problems of organic environment-friendly cooling fluid have been changed;
4, this product stability is good, and driving reaches 200,000 kilometers work-ing life, is suitable for the overweight load cooling fluid of environmental protection.
Embodiment:
Embodiment 1: the preparation of high molecular polymer
Is catalyzer with 30kg oxyethane and 30kg lauryl alcohol (also lauryl alcohol) with 0.3kg potassium hydroxide, in autoclave, react, refluxed 3 hours, temperature of reaction is controlled at 100 ℃, vacuum degree control is at 0.5MPa, under vacuum stirring, react, after making the addition mole number of oxyethane be 36 moles, temperature of reaction is reduced to 40 ℃, at the laurostearic acid (also lauric acid) that in reactor, adds 60kg, rely on the catalyst performance that laurostearic acid itself is had, being the raw material of participating in reaction, also is the catalyzer in the reaction process, is warming up to 80 ℃, vacuum degree control is under 0.4MPa, react after 1.5 hours, be warming up to 110 ℃, pressure-controlling is at 0.65MPa, behind the constant temperature 35 minutes, be warming up to 120 ℃, pressure-controlling under the 0.85MPa condition, the 0.2Kg water that underpressure distillation reflects, make the volumetric concentration＜50ppm of water in products content, can obtain high molecular polymer.
Embodiment 2: the preparation of fluorescence green
Lemon yellow (the C of water intaking dissolubility
16H
12N
4O
9S
23Na) 0.0001kg and water-soluble light blue (C
37H
36N
2O
9S
32Na) the mixed fluorescence green that gets of 0.0001kg.
Embodiment 3
Adding propylene glycol 30kg extracts the 69kg deionized water with fresh feed pump again in blending kettle, places blending kettle and propylene glycol blend, starts novel pulse stirring system, stirs water and propylene glycol to be mixed well in 10 minutes; Next add benzotriazole 0.05kg successively, high molecular polymer 0.6kg, Sodium Benzoate 0.15kg, polyacrylic acid 0.05kg, AEO
9(aliphatic alcohol polyethenoxy (9) ether) 0.05kg, n-caprylic acid 0.05kg, sebacic acid disodium salt 0.05kg, Tegosept B (4-butoben) 0.0002kg, defoamer (polyoxyethylene polyoxypropylene monobutyl ether XD-4000) 0.0002kg, fluorescence green 0.0002kg; Mix down at 35 ± 5 ℃ and to stir 30 minutes, after testing, filter, engine coolant that packing promptly obtains this invention.
Embodiment 4:
Adding propylene glycol 50kg extracts the 47kg deionized water with fresh feed pump again in blending kettle, places blending kettle and propylene glycol blend, starts novel pulse stirring system, stirs water and propylene glycol to be mixed well in 10 minutes; Next add mercaptobenzothiazole 0.15kg successively, high molecular polymer 1.50kg, Sodium Benzoate 0.8kg, polyacrylic acid 0.15kg, detergent AEO
9(aliphatic alcohol polyethenoxy (9) ether) 0.10kg, enanthic acid 0.15kg, disodium succinate salt 0.15kg, Tegosept B (4-butoben) 0.0001kg, defoamer (polyoxyethylene polyoxypropylene monobutyl ether XD-4000) 0.0001kg, fluorescence green 0.0001kg; Mix down at 35 ± 5 ℃ and to stir 30 minutes, after testing, filter, engine coolant that packing promptly obtains this invention.
Embodiment 5:
Adding propylene glycol 60kg extracts the 36.5kg deionized water with fresh feed pump again in blending kettle, places blending kettle and propylene glycol blend, starts novel pulse stirring system, stirs water and propylene glycol to be mixed well in 10 minutes; Next add polyvinylpyrrolidone 0.22kg successively, high molecular polymer 1.60kg, Sodium Benzoate 0.9kg, polyacrylic acid 0.20kg, detergent AEO
9(aliphatic alcohol polyethenoxy (9) ether) 0.08kg, capric acid 0.25kg, hexanodioic acid disodium salt 0.25kg, Tegosept B (4-butoben) 0.0002kg, defoamer (polyoxyethylene polyoxypropylene monobutyl ether XD-4000) 0.0002kg, fluorescence green 0.0002kg; Mix down at 35 ± 5 ℃ and to stir 30 minutes, after testing, filter, engine coolant that packing promptly obtains this invention.
Embodiment 6
Adding propylene glycol 55kg extracts the 47kg deionized water with fresh feed pump again in blending kettle, places blending kettle and propylene glycol blend, starts novel pulse stirring system, stirs water and propylene glycol to be mixed well in 10 minutes; Next add tolyl-triazole 0.10kg successively, high molecular polymer 1.2kg, Sodium Benzoate 0.60kg, polyacrylic acid 0.10kg, detergent AEO
9(aliphatic alcohol polyethenoxy (9) ether) 0.06kg, oxalic acid 0.20kg, pentanedioic acid disodium salt 0.20kg, Tegosept B (4-butoben) 0.0001kg, defoamer (polyoxyethylene polyoxypropylene monobutyl ether XD-4000) 0.0001kg, fluorescence green 0.0001kg; Mix down at 35 ± 5 ℃ and to stir 30 minutes, after testing, filter, engine coolant that packing promptly obtains this invention.
More than be for this invention is described well about the detailed description of a kind of " engine coolant ", be not to carry out the restriction of invention spatial, hereby, fully might be the scientific and technical personnel of this research field in the possibility that consult the laggard row change of this document, we will contain lid only is among the spirit and scope in claims.
Claims (9)
1, a kind of engine coolant is characterized in that this engine coolant is by propylene glycol, deionized water, azole compounds, high molecular polymer, polyacrylic acid, Sodium Benzoate, detergent AEO
9, monoprotic acid, dicarboxylate, 4-butoben, defoamer, fluorescence green forms, the weight part proportioning of each component is as follows:
30～60 parts of propylene glycol
36.5～69 parts of deionized waters
0.05～0.22 part of azole compounds
0.60～1.60 part of high molecular polymer
0.05～0.20 part of polyacrylic acid
0.15～0.90 part of Sodium Benzoate
Detergent AEO
90.05～0.10 part
0.05～0.25 part in monoprotic acid
0.05～0.25 part of dicarboxylate
0.0001～0.0002 part of 4-butoben
0.0001～0.0002 part of defoamer
0.0001～0.0002 part of fluorescence green.
2, engine coolant according to claim 1 is characterized in that a kind of in described azole compounds selected from mercapto benzothiazole, benzotriazole, tolyl-triazole or the polyvinylpyrrolidone.
3, engine coolant according to claim 2 is characterized in that described azole compounds is a benzotriazole.
4, engine coolant according to claim 1, it is characterized in that described high molecular polymer is the multipolymer of high molecular polyether and lipid acid, the preparation method is as follows: each proportion of raw materials adds by weight, is catalyzer with 30～50 parts of oxyethane and 25～45 parts of lauryl alcohols with 0.2～0.4 part of potassium hydroxide, in autoclave, react, refluxed 2～3 hours, temperature of reaction is controlled at 90～120 ℃, vacuum degree control is at 0.2～0.6MPa, under vacuum stirring, react, after making the addition mole number of oxyethane be 30～50mol, temperature of reaction is reduced to 40～60 ℃, at the laurostearic acid that in reactor, adds 50～60 parts, rely on the catalyst performance that laurostearic acid itself is had, it is the raw material of participating in reaction, it also is the catalyzer in the reaction process, be warming up to 70～90 ℃, vacuum degree control is under 0.2～0.6MPa, react after 1～2 hour, be warming up to 100～120 ℃, pressure-controlling is at 0.65～0.85MPa, behind the constant temperature 30～45 minutes, be warming up to 110～130 ℃, pressure-controlling is under 0.85～0.95MPa condition, 0.2～0.3 part of water that underpressure distillation reflects makes the volumetric concentration＜50ppm of water in products content, can obtain high molecular polymer.
5, engine coolant according to claim 1 is characterized in that described monoprotic acid is selected from a kind of in oxalic acid, enanthic acid, n-caprylic acid or the capric acid.
6, engine coolant according to claim 5 is characterized in that described monoprotic acid is n-caprylic acid.
7, engine coolant according to claim 1 is characterized in that described dicarboxylate is selected from a kind of in disodium succinate salt, pentanedioic acid disodium salt, hexanodioic acid disodium salt or the sebacic acid disodium salt.
8, engine coolant according to claim 7 is characterized in that described dicarboxylate is the sebacic acid disodium salt.
9, engine coolant according to claim 1 is characterized in that described fluorescence green is that water-soluble Tatrazine molecular formula is C
16H
12N
4O
9S
23Na and water-soluble edible light blue molecular formula are C
37H
36N
2O
9S
3The ratio of 2Na by weight 1～2: 1 composite and the blending fluorescence green.
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|---|---|---|---|
| CNB2006100470820A CN100400617C (en) | 2006-06-30 | 2006-06-30 | Cooling fluid of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100470820A CN100400617C (en) | 2006-06-30 | 2006-06-30 | Cooling fluid of engine |
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|---|---|
| CN1872943A true CN1872943A (en) | 2006-12-06 |
| CN100400617C CN100400617C (en) | 2008-07-09 |
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| CN101602936B (en) * | 2009-07-24 | 2011-05-11 | 长春市永畅石化有限责任公司 | Low silicon content coolant liquid applicable to aluminum radiator of heavy-duty commercial vehicle engine |
| CN102170081A (en) * | 2011-03-12 | 2011-08-31 | 桂林市同步工业自动控制有限责任公司 | Cooling liquids for light pump solid state neodymium: yttrium aluminum garnet (Nd:YAG) laser and preparing method thereof |
| CN102653672A (en) * | 2011-12-21 | 2012-09-05 | 上海东昊油品有限公司 | Environmentally-friendly automobile engine coolant |
| CN103059820A (en) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | Non-aqueous coolant composition for engine |
| CN103666402A (en) * | 2013-11-22 | 2014-03-26 | 广西大学 | Machine testing coolant for diesel engine |
| CN105542729A (en) * | 2016-01-13 | 2016-05-04 | 倪跃玉 | Energy-saving and environment-friendly anti-freezing solution for water system engine |
| CN105820801A (en) * | 2016-05-19 | 2016-08-03 | 山东普希环保科技有限公司 | Environment-friendly and economical propylene glycol freezing prevention and boiling prevention fluid |
| CN106011869A (en) * | 2016-06-19 | 2016-10-12 | 竹洪燕 | Corrosion inhibitor capable of effectively resisting chloride ion corrosion and preparation method thereof |
| CN106190057A (en) * | 2016-07-13 | 2016-12-07 | 蚌埠市华科机电有限责任公司 | A kind of environmental type coolant |
| CN108611062A (en) * | 2018-07-05 | 2018-10-02 | 胡果青 | A kind of automobile cooling |
| CN109233754A (en) * | 2017-07-10 | 2019-01-18 | Jxtg能源株式会社 | The method of the temperature of thermal medium liquid and control work mechanism |
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| CN1022653C (en) * | 1991-03-13 | 1993-11-03 | 浙江大学 | Method for making transistor with silicon single crystal thin section |
| CN1127775A (en) * | 1995-01-27 | 1996-07-31 | 姜少华 | Screen ray and static electricity eliminating agent |
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| CN102170081A (en) * | 2011-03-12 | 2011-08-31 | 桂林市同步工业自动控制有限责任公司 | Cooling liquids for light pump solid state neodymium: yttrium aluminum garnet (Nd:YAG) laser and preparing method thereof |
| CN102170081B (en) * | 2011-03-12 | 2012-09-05 | 桂林市同步工业自动控制有限责任公司 | Cooling liquids for light pump solid state neodymium: yttrium aluminum garnet (Nd:YAG) laser and preparing method thereof |
| CN103059820A (en) * | 2011-10-19 | 2013-04-24 | 中国石油化工股份有限公司 | Non-aqueous coolant composition for engine |
| CN102653672A (en) * | 2011-12-21 | 2012-09-05 | 上海东昊油品有限公司 | Environmentally-friendly automobile engine coolant |
| CN103666402A (en) * | 2013-11-22 | 2014-03-26 | 广西大学 | Machine testing coolant for diesel engine |
| CN103666402B (en) * | 2013-11-22 | 2016-02-03 | 广西大学 | Diesel motor test-run a machine cooling fluid |
| CN105542729A (en) * | 2016-01-13 | 2016-05-04 | 倪跃玉 | Energy-saving and environment-friendly anti-freezing solution for water system engine |
| CN105820801A (en) * | 2016-05-19 | 2016-08-03 | 山东普希环保科技有限公司 | Environment-friendly and economical propylene glycol freezing prevention and boiling prevention fluid |
| CN106011869A (en) * | 2016-06-19 | 2016-10-12 | 竹洪燕 | Corrosion inhibitor capable of effectively resisting chloride ion corrosion and preparation method thereof |
| CN106190057A (en) * | 2016-07-13 | 2016-12-07 | 蚌埠市华科机电有限责任公司 | A kind of environmental type coolant |
| CN109233754A (en) * | 2017-07-10 | 2019-01-18 | Jxtg能源株式会社 | The method of the temperature of thermal medium liquid and control work mechanism |
| CN109666459A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | A kind of long-life engine coolant liquid resistant to high temperatures |
| CN109666459B (en) * | 2017-10-16 | 2021-01-15 | 中国石油化工股份有限公司 | High-temperature-resistant long-life engine coolant |
| CN108611062A (en) * | 2018-07-05 | 2018-10-02 | 胡果青 | A kind of automobile cooling |
| CN109705821A (en) * | 2019-01-15 | 2019-05-03 | 北京化工大学 | A kind of ethylene glycol-water base coolant liquid of the low conduction of low corrosion |
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