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Environment-friendly type long-life engine coolant

An engine coolant, long-life technology, applied in the field of engine coolant, can solve the problems of poor thermal stability of silicate, prolong life, not environmentally friendly, etc., to improve the corrosion protection effect, solve the obvious drop in pH value, improve Environmentally friendly effects

Inactive Publication Date: 2019-07-02
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicates have poor thermal stability, and borates, nitrites, and phosphates are not environmentally friendly, and it is impossible to improve the environmental protection and prolong the life of engine coolant

Method used

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  • Environment-friendly type long-life engine coolant

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] An environment-friendly long-life engine coolant, comprising the following raw material components in parts by weight: 50 parts of deionized water, 50 parts of ethylene glycol, 0.02 parts of sodium hydroxide, 0.02 parts of potassium hydroxide, 0.1 part of isooctanoic acid, and 0.2 parts of nonanoic acid, 0.3 parts of neodecanoic acid, 0.1 parts of sebacic acid, 0.05 parts of undecanoic acid, 0.05 parts of dodecanedioic acid, 0.1 parts of triazine triaminocaproic acid, 0.07 parts of glutamic acid, N- 0.03 part of octanoyl glutamic acid, 0.1 part of sulfosiloxane, 0.1 part of methyl benzotriazole, 0.005 part of emulsified silicone oil defoamer, and 0.005 part of dye.

Embodiment 2

[0023] An environment-friendly long-life engine coolant, comprising the following raw material components in parts by weight: 50 parts of deionized water, 50 parts of ethylene glycol, 0.3 part of sodium hydroxide, 0.2 part of potassium hydroxide, 0.2 part of isooctanoic acid, 0.2 part of isocaprylic acid, 0.2 parts of nonanoic acid, 0.7 parts of neodecanoic acid, 0.7 parts of sebacic acid, 0.3 parts of undecanoic acid, 0.3 parts of dodecanoic diacid, 0.5 parts of triazine triaminocaproic acid, 0.2 parts of glutamic acid, N- 0.2 part of octanoyl glutamic acid, 0.4 part of sulfosiloxane, 0.2 part of methyl benzotriazole, 0.01 part of emulsified silicone oil defoamer, and 0.01 part of dye.

Embodiment 3

[0025] An environment-friendly long-life engine coolant, comprising the following raw material components in parts by weight: 50 parts of deionized water, 50 parts of ethylene glycol, 0.15 parts of sodium hydroxide, 0.15 parts of potassium hydroxide, 0.15 parts of isooctanoic acid, 0.2 parts of nonanoic acid, 0.5 parts of neodecanoic acid, 0.4 parts of sebacic acid, 0.2 parts of undecanoic acid, 0.2 parts of dodecanedioic acid, 0.3 parts of triazine triaminocaproic acid, 0.15 parts of glutamic acid, N- 0.1 part of octanoyl glutamic acid, 0.25 part of sulfosiloxane, 0.15 part of methyl benzotriazole, 0.005 part of emulsified silicone oil defoamer, and 0.005 part of dye.

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Abstract

The invention relates to an environment-friendly type long-life engine coolant, which comprises the following raw materials (by weight): 40-50 parts of deionized water, 50-60 parts of polyol, 0.04-0.5part of inorganic base, 0.6-1.1 parts of monobasic fatty acid, 0.2-1.3 parts of dibasic fatty acid, 0.1-0.5 part of triazine triaminocaproic acid, 0.1-0.4 part of amino acid, 0.1-0.4 part of sulfonicsiloxane ketone, 0.1-0.2 part of a triazole compound, 0.005-0.01 part of an emulsified silicon oil antifoaming agent, and 0.005-0.01 part of a dye. The engine coolant of the invention contains no inorganic acid salts such as silicate, borate, nitrite, phosphate, etc., thus improving environmental protection property of the engine coolant. By using a special organic aluminium alloy corrosion inhibitor, aluminium alloy corrosion prevention effect of the engine coolant is enhanced, and the problem that a special aluminium alloy corrosion inhibitor silicate in a traditional engine coolant has poor heat stability is solved. The engine coolant of the invention has decay resistance, pH value can be maintained for a long time, and the problem that pH value is reduced obviously in the using process of a traditional engine coolant is solved.

Description

technical field [0001] The invention belongs to the technical field of engine coolant, and in particular relates to an environment-friendly long-life engine coolant. Background technique [0002] The engine coolant is in direct contact with the user and the natural environment when it is replaced, replenished, or malfunctioned, and the inorganic acid-type corrosion inhibitors such as borates, nitrites, phosphates, and heavy metal salts in the engine coolant It is harmful to the human body and the natural environment. In order to reduce the harm of engine coolant to the human body and the natural environment, it is necessary to develop an environmentally friendly engine coolant. [0003] As an important working medium in the vehicle cooling system, engine coolant plays an important role in maintaining the normal operation of the engine. The engine coolant has a fast flow rate in the vehicle cooling system, and the engine coolant with poor thermal stability is prone to cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 许扬朱雅男汪玉瑄徐小鹏闫瑾王清国黄显臣李艳慧
Owner FAW JIEFANG AUTOMOTIVE CO
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