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A kind of low-conductivity cooling liquid and preparation method thereof

A technology of coolant and low conductivity, applied in lubricating compositions, petroleum industry, etc., can solve problems such as poor stability

Active Publication Date: 2021-12-07
中国船舶集团有限公司第七一八研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor stability of organosilicon compounds, there is no report to use them as coolant corrosion inhibitors

Method used

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  • A kind of low-conductivity cooling liquid and preparation method thereof
  • A kind of low-conductivity cooling liquid and preparation method thereof
  • A kind of low-conductivity cooling liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The organosilicon compounds used in the following examples and comparative examples are all products of Dow Corning Co., Ltd., 5-methoxyuracil is a product of Ruierfeng Chemical Co., Ltd., and 4-amino-5-imidazole carboxamide is a product of Shanghai Jiangzhou Chemical Co., Ltd. The company's products, methyl benzotriazole is a product of Nantong Kanghua Chemical Co., Ltd., and N-lauroyl sarcosine is a product of Beijing Bailingwei Technology Co., Ltd.

[0028] Each component and its mass percentage in Examples 1-6 and Comparative Examples are shown in Table 1.

[0029] Table 1

[0030]

[0031] The preparation method of the cooling liquid described in Examples 1-6 is: mix the organosilicon compound, the nitrogen-containing compound and the azole compound evenly, then add it to the glycol, stir at room temperature for more than 20 minutes, and finally add deionized water and stir evenly , to obtain a low-conductivity coolant.

[0032] The preparation method of the c...

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Abstract

The invention relates to a low-conductivity cooling liquid and a preparation method thereof, belonging to the field of chemical industry. Based on the total mass of each component in the cooling liquid formula as 100%, the mass percentage of each component is: 30-80% of glycol, 0.05-5.0% of organosilicon compound, 0.01-2.0% of nitrogen-containing compound %, azole compounds 0-1.0%, the balance of deionized water; after mixing organosilicon compounds, nitrogen-containing compounds and azole compounds evenly, add them to glycol and stir at room temperature for more than 20 minutes, and finally add deionized water to stir Obtained evenly. The cooling liquid has a good corrosion inhibition effect on multi-metal systems, has good storage and use stability, and can be used for cooling and heat exchange of fuel cells, electric vehicle motors and wind power generators.

Description

technical field [0001] The invention relates to a low-conductivity cooling liquid and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] New energy vehicles and wind turbines have strict requirements on the conductivity of coolant due to their "electric and magnetic" characteristics. Fuel cells require the conductivity of the coolant to be less than 10μs / cm, and electric vehicles and wind turbines generally require the conductivity of the coolant to be less than 400μs / cm. The conductivity of ordinary coolant is generally greater than 2000μs / cm, which will generate a large induced current when used in new energy vehicles and wind turbines, which is prone to flashover between phases of the motor and also produces a large leakage current. Accident hazards in normal operation. [0003] Most of the existing low-conductivity cooling liquid research uses nitrogen-containing compounds as corrosion inhibitors. CN102174313B discl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M171/00C10M173/00C10N30/12
Inventor 王峰刘保锋姜燕蔡淑红刘波涛苏玲燕李杰谭凯锋侯锦锋商轶
Owner 中国船舶集团有限公司第七一八研究所
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