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Antifreezing fluid for automobile engine

A technology of automobile engine and antifreeze, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of lack of quality inspection and poor quality of products

Pending Publication Date: 2014-05-07
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the production of domestic antifreeze has grown rapidly in recent years, many products are of poor quality due to the lack of strict quality inspection and unified inspection standards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Antifreeze composition and dosage are as follows (parts by weight):

[0011] a. 5 parts of propylene glycol;

[0012] b. 15 parts of ethylene glycol;

[0013] c. 10 parts of butanediol;

[0014] d. 0.8 parts of sodium phosphate;

[0015] e. 1 part of sodium silicate;

[0016] f. 5 parts of hydrochloride;

[0017] g. 10 parts of borax;

[0018] h. 15 parts of petroleum resin;

[0019] i. 8 parts of glycine;

[0020] j. 5 parts of benzotriazole;

[0021] k. 0.001 part of defoamer;

[0022] l. Water balance.

[0023]

[0024] Test the physical properties of antifreeze with different compositions and proportions as shown in the table below:

[0025] antifreeze Boiling point (°C) Freezing point (°C) 1 104 -42 2 110 -40 3 109 -46 4 109 -50

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PUM

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Abstract

The invention discloses an antifreezing fluid for an automobile engine, relating to an antifreezing fluid for an automobile. The antifreezing fluid comprises the following components in parts by weight: 0-20 parts of propylene glycol, 0-20 parts of ethylene glycol, 0-20 parts of butanediol, 0-1 part of sodium phosphate, 0-1 part of sodium silicate, 0-30.0 parts of hydrochloride, 0-12 parts of borax, 0-18 parts of petroleum resin, 0-10 parts of glycine, 0-10 parts of 1,2-aminoazophenylene, 0-1.0 part of defoamer and 0-60 parts of water, wherein sodium phosphate, sodium silicate and borax are used as buffer agents; dimethicone or tributyl phosphate is used as the defoamer; dihydric alcohol is used as an antifreezing agent; 1,2-aminoazophenylene is used as a corrosion inhibitor; hydrochloride is one selected from alkaline metal, alkaline earth metal and third main group element hydrochlorides; glycine and petroleum resin are used as mildew preventives. The antifreezing fluid is capable of effectively preventing a circulation cooling fluid from being frozen, free of corrosion to a cooling system and incapable of freezing when used at low temperature of 40-50 DEG C below zero.

Description

technical field [0001] The invention relates to an automobile antifreeze, in particular to an automobile engine antifreeze. Background technique [0002] The engine cooling system of an internal combustion vehicle is a liquid-cooled closed circulation system composed of a cylinder, a jacket and a water tank. The working state of the cooling system directly affects the normal operation of the vehicle and the service life of the vehicle. Antifreeze is the cooling medium of the internal combustion engine circulating cooling system, mainly composed of antifreeze, corrosion inhibitor, defoamer, colorant, antifungal agent, buffer and so on. [0003] With the development of the automobile industry, the performance requirements of the engine are getting higher and higher. It is not only required that the antifreeze has a lower freezing point and a higher boiling point, but also has better metal corrosion resistance, cavitation resistance, and anti-condensation. Scalability, little...

Claims

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Application Information

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IPC IPC(8): C09K5/20
Inventor 龙小柱
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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