CN101949015B - Protective agent for water-cooled engine cooling system - Google Patents
Protective agent for water-cooled engine cooling system Download PDFInfo
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- CN101949015B CN101949015B CN2010102721675A CN201010272167A CN101949015B CN 101949015 B CN101949015 B CN 101949015B CN 2010102721675 A CN2010102721675 A CN 2010102721675A CN 201010272167 A CN201010272167 A CN 201010272167A CN 101949015 B CN101949015 B CN 101949015B
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Abstract
The invention discloses a protective agent for a water-cooled engine cooling system, which comprises the following components in percentage by weight: 0.1 to 0.5 percent of phytic acid, 0.1 to 2.0 percent of aliphatic dicarboxylic acid, 0.2 to 2.0 percent of sodium benzoate, 0.01 to 0.5 percent of sodium nitrate, 0.01 to 0.35 percent of azole compound, 0.001 to 0.1 percent of antifoaming agent and the balance of deionized water. The protective agent is environmental-friendly and nontoxic, has low cost and excellent effect, can effectively protect the engine cooling system, prolong the service life of the engine cooling system, ensure the normal operation of an automobile and reduce operating cost.
Description
Technical field
The present invention relates to a kind of engine-cooling system protective material, specifically design a kind of water-cooled engine-cooling system protective material, belong to chemical field.
Background technology
The function of engine-cooling system is to remove suitable heat, guarantees that mover can reach the ideal working temperature rapidly, and no matter how environment and working conditions change, and remain at this TR.Because water is on record efficient and general obtainable heat transferring agent; Therefore water is the material that is used as heat-eliminating medium at first; Through the pump circulation of system, water can be taken away the heat of engine high-temperature part and dissipate, and makes mover keep normal working temperature.Water mainly contains as the problem that heat-eliminating medium exists: freezing point is high, and winter or the envrionment temperature below 0 ℃ are prone to freeze, and bursting by freezing scatterer and engine cylinder-body produce chemical corrosion and galvanic corrosion, damage cooling system; Contain metallic salt materials such as calcium and magnesium in the natural water, the back that is heated is prone to generate incrustation scale, on the inwall attached to engine water jacket and scatterer, plays heat insulation and effect blocking channel, makes engine overheat.Quench liquid is as the another kind of heat-eliminating medium of cooling system, and freezing point is low and can play the effect of cooling, protection mover, but price is higher relatively.
The aboundresources of water is drawn materials conveniently, and is especially cheap, and the phenomenon of freezing can not occur at vast southern area or the use in season of northern area more than 0 ℃.The most of user in south makes water also have quite a few user only to use deicing fluid to make water other season in winter as heat-eliminating medium, the north in the four seasons; Get off for a long time to cause the cooling system internal corrosion serious and radiating effect is not good, therefore select for use suitable scale inhibition anticorrosive additive in order to solve the fouling and the metallic corrosion phenomenon of cooling system water.
Chinese patent CN1250753 " a kind of protecting agent for radiator of car engine "; Contain water glass, borax, tsp, Sodium phosphate, dibasic and yellow soda ash in the protecting agent for radiator of car engine of this invention; This invention all uses inorganic salt as inhibiter; With inorganic phosphate and silicate is main, though inorganic phosphate can play good corrosion inhibition its can promote algae grows in the water body, the breeding etc. of accelerating bacterium belongs to environmentally harmful material, silicate is the special corrosion inhibitor of aluminium and duraluminum; But, form deposition as not cooperating the easy gel of high performance stablizer to separate out because silicate is unstable; Chinese patent CN1552592 has announced " radiator protective material and preparation method thereof "; The radiator protective material includes following quality batching and forms: 10～30 parts of ZX-Is, 0.1～1.9 part of borax, 0.1～1.5 part of Sodium Nitrite; Also contain one or more the combination in the following quality batch additives: 0.5～2.5 part of SODIUM PHOSPHATE, MONOBASIC, 0.01 part of Sodium Benzoate, 0.1 part of benzotriazole, 0.5 part of sodium-metaphosphate, the borate in this invention, nitrite also equally belong to the material that environment is had harm with phosphoric acid salt.
Summary of the invention
The object of the invention is for water-cooled engine-cooling system a kind of environmental protection and the low protective material with inhibition, scale effect of cost to be provided.
The present invention provides a kind of water-cooled engine-cooling system protective material, contains the component of following weight percent concentration:
Phytic acid 0.1～0.5%, binary aliphatic carboxylic acid 0.1～2.0%,
Sodium Benzoate 0.2～2.0%, SODIUMNITRATE 0.01～0.5%,
Azole compounds 0.01～0.35%, skimmer 0.001～0.1%,
Surplus is a deionized water.
Further, said binary aliphatic carboxylic acid is hexanodioic acid, pimelic acid, suberic acid, nonane diacid, sebacic acid wherein any one or any two kinds mixture.
Further, said azole compounds be benzotriazole, TTA, mercapto benzothiazole wherein any one.
Further, said azole compounds is a TTA.
Further, said skimmer is a polydimethylsiloxaneemulsions emulsions.
Further, said skimmer preferred content is 0.02%.
The protectant preparation method of the water-cooled engine-cooling system of the present invention; May further comprise the steps: under (1) normal temperature, in the deionized water input reaction kettle with said amount, add phytic acid, the binary aliphatic carboxylic acid of said amount then successively; Adding sodium hydroxide again is stirred to dissolving to make the pH of solution is 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, the azole compounds of said amount successively, stir the skimmer that adds said amount after 30 minutes, being stirred to fully, dissolving promptly gets.
Described phytic acid also claims flesh six pure six phosphoric acid, is the organic phosphoric acid compound that from food crop, extracts, and it is the natural nontoxic Chemicals, soluble in waterly contains functional groups such as a plurality of hydroxyls and phosphono, thereby to Mg
2+, Ca
2+Good adsorption, complex ability and dispersive ability are arranged; Simultaneously phytic acid is again a kind of metal chelator, is prone to form the fine and close unit molecule protective membrane of one deck in the metallic surface during with metal complex, can effectively stop oxygen etc. to get into the metallic surface, thereby suppress metallic corrosion.
Described binary aliphatic carboxylic acid is one or both the mixture in hexanodioic acid, pimelic acid, suberic acid, nonane diacid, the sebacic acid, reaches the effect of inhibition through activated adsorption, so consume characteristics slowly owing to do not need film forming to have.
Described azole compounds is selected from benzotriazole, TTA, mercapto benzothiazole,
Be preferably TTA, three kinds of compounds all can generate fine and close with the copper surface and stable protective membrane is the special corrosion inhibitor of copper, and wherein TTA resistance of oxidation and activity resistent chlorine ability are superior to other two kinds of materials.
Described Sodium Benzoate, the composite use of SODIUMNITRATE can reach the effect that prevents metallic corrosion, and wherein Sodium Benzoate is can generate protective membrane in the metallic surface after a kind of sustained release dosage and oxygenant of non-oxide type is used; SODIUMNITRATE belongs to the oxidized form inhibiter, and iron and steel etc. is had the certain protection effect, has the performance that well prevents the duraluminum spot corrosion simultaneously.
Described skimmer is a polydimethylsiloxaneemulsions emulsions, and purpose is to reduce the generation of cooling system inner foam.
Said each component all can be bought on market and obtain.
The protectant method of use of the present invention: directly place water tank with this configuration concentration.
Beneficial effect of the present invention is:
1. the present invention selects for use the phytic acid and other compound that from food crop, extract to make up as inhibiter, and its proportioning has obtained economical rationality, technological excellent combination through a large amount of screening experiments.Since do not contain the materials that toxicity is big, contaminative is strong such as amine substance, nitrite, inorganic phosphate, borate, therefore, environment-protecting asepsis.
2. the phytic acid that the present invention selected for use, binary aliphatic carboxylic acid, azole compounds, Sodium Benzoate combine with SODIUMNITRATE; Have the synergistic slow corrosion effect between each material, can prevent effectively that the Corrosion of Metallic Materials that is contacted in the engine-cooling system from also can prevent the generation of incrustation scale, rust deposite etc.; Its glassware Corrosion results can satisfy the standard-required of SH/T 0521-1999 " automobile and light load mover spent glycol type quench liquid ".Can effectively protect engine-cooling system and prolong work-ing life of engine-cooling system, guarantee the normal operation of automobile and can effectively reduce running cost.
3. this protective material cost is low, economical and practical.
Embodiment
Further illustrate the present invention among the embodiment below, this does not limit the scope of the invention.
Embodiment 1:
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.2%, hexanodioic acid 0.5%, sebacic acid 1.5%, Sodium Benzoate 1.2%, SODIUMNITRATE 0.5%, TTA 0.3%, sodium hydroxide 1.1%, polydimethylsiloxaneemulsions emulsions 0.1%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, own binary and sebacic acid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Embodiment 2
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.25%, suberic acid 0.5%, sebacic acid 1.3%, Sodium Benzoate 1.0%, SODIUMNITRATE 0.4%, TTA 0.25%, sodium hydroxide 1.0%, polydimethylsiloxaneemulsions emulsions 0.02%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, suberic acid and sebacic acid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Embodiment 3
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.3%, pimelic acid 0.5%, sebacic acid 1.0%, Sodium Benzoate 0.8%, SODIUMNITRATE 0.4%, TTA 0.2%, sodium hydroxide 0.9%, polydimethylsiloxaneemulsions emulsions 0.001%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, pimelic acid and sebacic acid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Embodiment 4
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.35%, nonane diacid 0.5%, sebacic acid 0.5%, Sodium Benzoate 0.5%, SODIUMNITRATE 0.3%, TTA 0.15%, sodium hydroxide 0.65%, polydimethylsiloxaneemulsions emulsions 0.02%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, nonane diacid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Embodiment 5
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.4%, hexanodioic acid 0.4%, nonane diacid 0.4%, Sodium Benzoate 0.4%, SODIUMNITRATE 0.2%, TTA 0.1%, sodium hydroxide 0.6%, polydimethylsiloxaneemulsions emulsions 0.1%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, own binary and nonane diacid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Embodiment 6
A kind of water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.5%, sebacic acid 0.5%, Sodium Benzoate 0.2%, SODIUMNITRATE 0.2%, TTA 0.05%, sodium hydroxide 0.45%, polydimethylsiloxaneemulsions emulsions 0.02%, surplus are deionized water.
The protectant preparation method of above-mentioned water-cooled engine-cooling system; Prepare according to following steps: under (1) normal temperature, deionized water is dropped in the reaction kettle, add phytic acid, sebacic acid then successively by above-mentioned weight proportion; The sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9; (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively, stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
Test Example
Engine-cooling system protective material performance index data of the present invention are seen table 1
Table 1 engine-cooling system protective material performance index
Annotate: the standard-required of anti-performance of hard water is the requirement of regulation among the BS 6580:1992 " the anticorrosion standard of freezing dose of enriched material of mover (frostproofer) "; The standard-required of other test item is the requirement of regulation among the SH/T0521-1999 " automobile and light load mover spent glycol type quench liquid ".Can find out from the data of table 1; The anti-bubble of protective material and the antifoam performance of the preparation of the present invention's technology are excellent; And engine-cooling systems such as red copper, brass, scolding tin, carbon steel, cast aluminium, cast iron are had excellent corrosion inhibition provide protection with metal, test piece weightlessness is well below standard-required; This protective material has good resistance to hard water simultaneously.
Claims (5)
1. water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.2%, hexanodioic acid 0.5%, sebacic acid 1.5%, Sodium Benzoate 1.2%, SODIUMNITRATE 0.5%, TTA 0.3%, sodium hydroxide 1.1%, polydimethylsiloxaneemulsions emulsions 0.1%, surplus are deionized water; This water-cooled engine-cooling system is protectant preparation method prepare according to following steps: under (1) normal temperature; By above-mentioned weight proportion deionized water is dropped in the reaction kettle; Add phytic acid, hexanodioic acid and sebacic acid then successively, the sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9, and (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively; Stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
2. water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.25%, suberic acid 0.5%, sebacic acid 1.3%, Sodium Benzoate 1.0%, SODIUMNITRATE 0.4%, TTA 0.25%, sodium hydroxide 1.0%, polydimethylsiloxaneemulsions emulsions 0.02%, surplus are deionized water; This water-cooled engine-cooling system is protectant preparation method prepare according to following steps: under (1) normal temperature; By above-mentioned weight proportion deionized water is dropped in the reaction kettle; Add phytic acid, suberic acid and sebacic acid then successively, the sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9, and (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively; Stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
3. water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.3%, pimelic acid 0.5%, sebacic acid 1.0%, Sodium Benzoate 0.8%, SODIUMNITRATE 0.4%, TTA 0.2%, sodium hydroxide 0.9%, polydimethylsiloxaneemulsions emulsions 0.001%, surplus are deionized water; This water-cooled engine-cooling system is protectant preparation method prepare according to following steps: under (1) normal temperature; By above-mentioned weight proportion deionized water is dropped in the reaction kettle; Add phytic acid, pimelic acid and sebacic acid then successively, the sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9, and (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively; Stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
4. water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.4%, hexanodioic acid 0.4%, nonane diacid 0.4%, Sodium Benzoate 0.4%, SODIUMNITRATE 0.2%, TTA 0.1%, sodium hydroxide 0.6%, polydimethylsiloxaneemulsions emulsions 0.1%, surplus are deionized water; This water-cooled engine-cooling system is protectant preparation method prepare according to following steps: under (1) normal temperature; By above-mentioned weight proportion deionized water is dropped in the reaction kettle; Add phytic acid, hexanodioic acid and nonane diacid then successively, the sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9, and (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively; Stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
5. water-cooled engine-cooling system protective material; The component that contains following weight percent concentration: phytic acid 0.5%, sebacic acid 0.5%, Sodium Benzoate 0.2%, SODIUMNITRATE 0.2%, TTA 0.05%, sodium hydroxide 0.45%, polydimethylsiloxaneemulsions emulsions 0.02%, surplus are deionized water; This water-cooled engine-cooling system is protectant preparation method prepare according to following steps: under (1) normal temperature; By above-mentioned weight proportion deionized water is dropped in the reaction kettle; Add phytic acid, sebacic acid then successively, the sodium hydroxide that adds above-mentioned amount again is stirred to dissolving, and to make the pH of solution be 8～9, and (2) add Sodium Benzoate, SODIUMNITRATE, TTA successively; Stir and add polydimethylsiloxaneemulsions emulsions after 30 minutes, being stirred to fully, dissolving promptly gets.
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| CN106867475B (en) * | 2016-12-23 | 2020-03-10 | 浙江丹弗王力润滑油有限公司 | Automobile antifreeze fluid and preparation method thereof |
| CN106867481A (en) * | 2017-03-30 | 2017-06-20 | 北京京脉工贸有限公司 | Engine coolant and its preparation technology |
| DE102017210282A1 (en) * | 2017-06-20 | 2018-12-20 | Mahle International Gmbh | Piston for a combustion engine with liquid metal cooling |
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| CN101381170A (en) * | 2007-09-07 | 2009-03-11 | 袁晓东 | Corrosion inhibitor of internal combustion engine cooling liquid and production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101381170A (en) * | 2007-09-07 | 2009-03-11 | 袁晓东 | Corrosion inhibitor of internal combustion engine cooling liquid and production process |
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| 周艳梅等.一种新型发动机冷却液缓蚀剂配方的研究.《清洗世界》.2009,第25卷(第1期),23-27. * |
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