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Vehicle engine cooling liquid

A technology of automobile engine and coolant, which is applied in the field of coolant, can solve the problems of high production cost, less antifreeze, and difficulty in wide application, and achieve the effect of good anti-corrosion effect, stable performance and low cost

Inactive Publication Date: 2014-03-26
QINGDAO COPTON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of conventional inorganic type coolants will be limited
At present, there are few antifreeze fluids for all-organic engines, and it is difficult to be widely used due to high production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An automobile engine coolant, the additive composition is composed according to the following mass percentage ratios,

[0020] For No.-25 antifreeze:

[0021] Ethylene glycol 42%, benzotriazole 0.15%, sodium benzoate 0.05%, sebacic acid 0.5%, azelaic acid 0.1%, sodium metasilicate 0.5%, γ-(sodium sulfonate) propylsiloxane 0.2%, defoamer 0.001%, potassium hydroxide 0.05%, dye 0.002%, deionized water 56.447%.

[0022] Preparation:

[0023] 1. Take an appropriate amount of water, first add sodium metasilicate to dissolve, then add silicate stabilizer and stir, after dissolving, add sodium benzoate, stir, dissolve and set aside;

[0024] 2. Take each raw material according to the formula, first add ethylene glycol into the reaction kettle, then add sebacic acid, azelaic acid and benzotriazole, after stirring evenly, slowly add the solution in step 1, stir evenly; finally add The cooling liquid is obtained after the other raw materials are fully stirred evenly.

[0025] ...

Embodiment 2

[0028] A kind of automobile engine coolant, described additive composition is made up according to following mass percentage ratio, is No.-35:

[0029] Ethylene glycol 50%, benzotriazole 0.2%, sodium benzoate 0.06%, sebacic acid 0.8%, azelaic acid 0.4%, sodium metasilicate 0.7%, γ-(sodium sulfonate) propylsiloxane 0.4%, defoamer 0.005%, potassium hydroxide 0.1%, dye 0.002%, deionized water 47.333%.

[0030] Preparation:

[0031] 1. Take an appropriate amount of water, first add sodium metasilicate to dissolve, then add silicate stabilizer and stir, after dissolving, add sodium benzoate, stir, dissolve and set aside;

[0032] 2. Take each raw material according to the formula, first add ethylene glycol into the reaction kettle, then add sebacic acid, azelaic acid and benzotriazole, after stirring evenly, slowly add the solution in step 1, stir evenly; finally add The cooling liquid is obtained after the other raw materials are fully stirred evenly.

[0033] According to NB / S...

Embodiment 3

[0036] A kind of automobile engine coolant, described additive composition is made up according to following mass percentage ratio, is -40 number:

[0037]

[0038]

[0039] According to NB / SH / T0521-2010 standard for glassware corrosion test, the results are as follows:

[0040]

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PUM

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Abstract

The invention relates to the technical field of a cooling liquid and particularly relates to a vehicle engine cooling liquid. An additive composition consists of the following components in percentage by mass: 30 to 60 percent of glycol, 0.15 to 0.3 percent of benzotriazole, 0.05 to 0.1 percent of sodium benzoate, 0.5 to 1.5 percent of sebacic acid, 0.1 to 1.0 percent of azelaic acid, 0.5 to 1.0 percent of sodium metasilicate, 0.2 to 0.5 percent of a silicate stabilizer, 0.001 to 0.01 percent of an antifoaming agent, 0.05 to 0.8 percent of potassium hydroxide, 0.002 to 0.006 percent of dye and the balance of deionized water. The vehicle engine cooling liquid adopts a novel mixed formula which uses organic substances as the main materials and uses inorganic substances as the auxiliary materials, has a good anticorrosive effect and a stable performance, has no precipitates, does not comprise substances which pollute the environment and are harmful for human bodies, such as amine substances, nitrite, phosphate and the like, is low in cost, can be widely applied to a vehicle engine cooling system and is suitable to be used in various areas.

Description

technical field [0001] The invention relates to the technical field of cooling liquid, in particular to an automobile engine cooling liquid. Background technique [0002] The engine cooling system has two cooling methods: water cooling and air cooling. Cars generally use water cooling. Automobile engine coolant is the cooling medium of automobile water-cooled engine, and it is an essential part to make the engine run normally. It has the functions of cooling, anti-corrosion, anti-scaling and anti-freezing. [0003] In recent years, with the development of automobile technology and materials, in order to reduce the weight of automobiles, save energy and reduce emissions, aluminum metal parts are used more and more widely, such as aluminum alloy radiators, cylinder heads, water pumps, etc. Therefore, it is particularly important to protect the aluminum alloy of the engine. [0004] At the same time, people began to pay more and more attention to environmental protection, an...

Claims

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Application Information

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IPC IPC(8): C09K5/20
Inventor 韩军英王强王黎明蒋威
Owner QINGDAO COPTON TECH
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