Full-organic hard water stable engine cooling liquid and making method thereof

Abstract

The invention relates to full-organic hard water stable engine cooling liquid which is characterized by being prepared by stirring and mixing the following components: 30-96 percent of ethylene glycol, 0.1-10.0 percent of organic carboxylic acid, 0.01-0.5 percent of an azole corrosion inhibitor, 0.05-1.0 percent of a hard water stabilizing agent, 0.001-0.2 percent of a defoaming agent and the balance of deionized water. The sum of the mass percentages of all the components is 100. According to the full-organic hard water stable engine cooling liquid, the hard water stability of the cooling liquid is obviously improved and effectively kept within 14d under the temperature of 90+/-2 DEG C.

Description

technical field [0001] The invention relates to an engine coolant and a production method thereof, in particular to an all-organic hard water stable engine coolant and a production method thereof. Background technique [0002] With the development of the automobile industry, the quality requirements for automobile engine coolant are getting higher and higher. In addition to having a higher boiling point and a lower freezing point, it should also have better performance in terms of anti-metal corrosion, anti-cavitation, anti-scaling, and long life. At the same time, for the consideration of environmental protection and human beings, some countries and their automobile manufacturers have also put forward stricter requirements on the composition and performance of engine coolant. [0003] At present, inorganic coolant is still the most widely used in China. After the automobile engine has been running for 25,000-50,000 km, it is necessary to add corrosion inhibitors frequentl...

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Problems solved by technology

[0006] The present invention designs an all-organic hard water stable engine coolant and its production method, and the technical problem it solves is that the hard

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