All-organic waterless engine coolant

An engine coolant, water-free technology, applied in the field of coolant, can solve the problems of reduced heat transfer capacity, short service life, low reserve alkalinity, etc., to achieve improved engine power, superior anti-corrosion performance, and good market prospects Effect

Inactive Publication Date: 2012-07-11
GUANGZHOU BIAOBANG CAR CARE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development of the automobile industry, the engine is developing towards high load and high technology, and the working state of the cooling system directly affects the normal operation of the engine and the service life of the vehicle. Therefore, not only the coolant is required to have a lower freezing point and a higher boiling point, It should also have excellent metal corrosion inhibition, anti-cavitation, anti-scaling, and environmental friendliness, and have a long service life and other comprehensive properties. The traditional ethylene glycol water-based coolant is gradually unable to meet the requirements. It has the following unavoidable defects: the water content is greater than 30%, so the boiling point can only reach 105°C-110°C, it is easy to "boil" under heavy-duty working conditions, and a steam layer is formed on the metal surface around the cylinder , resulting in a decrease in heat transfer capacity and cavitation; water el

Method used

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  • All-organic waterless engine coolant
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  • All-organic waterless engine coolant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The all-organic anhydrous engine coolant of the present embodiment comprises following components and percentage by weight:

[0022] Coolant base fluid------propylene glycol: 82.847%;

[0023] All organic corrosion inhibitor --- sebacic acid: 2%, isooctanoic acid: 1.5%, sodium benzoate: 1%;

[0024] Azole corrosion inhibitor------benzotriazole: 0.3%;

[0025] Viscosity specific heat regulator --- diethylene glycol monoethyl ether: 10%;

[0026] Ph value regulator------2-amino-2-methyl-1-propanol: 2.3%;

[0027] Defoamer------polyol block polyether: 0.05%;

[0028] Dyeing agent --- metal complex dye: 0.003%.

[0029] Preparation process: Dissolve sebacic acid, isooctanoic acid, sodium benzoate, benzotriazole, diethylene glycol monoethyl ether, polyol block polyether, metal complex dyes, etc. in propylene glycol at normal temperature and pressure, and stir Evenly, adjust the Ph value to 7.5-9.0 with 2-amino-2-methyl-1-propanol.

[0030] The comparison data between E...

Embodiment 2

[0034] The all-organic anhydrous engine coolant of the present embodiment comprises following components and percentage by weight:

[0035] Coolant base fluid------propylene glycol: 39.6235%, ethylene glycol: 39.6235%;

[0036] All organic corrosion inhibitor --- sebacic acid: 1%, caprylic acid: 1%, benzoic acid: 1%;

[0037] Azole corrosion inhibitor --- methyl benzotriazole: 0.2%;

[0038] Viscosity specific heat regulator --- diethylene glycol monoethyl ether: 15%;

[0039] Ph value regulator------2-amino-2-methyl-1-propanol: 1.8%, triethyl phosphate: 0.7%;

[0040] Defoamer------polyol block polyether: 0.05%;

[0041] Dyeing agent --- metal complex dye: 0.003%.

[0042] Preparation process: Mix ethylene glycol and propylene glycol at normal temperature and pressure, stir evenly, then mix sebacic acid, octanoic acid, benzoic acid, methyl benzotriazole, diethylene glycol monoethyl ether, polyol block polymer Dissolve ethers, metal complex dyes, etc. in the mixture of et...

Embodiment 3

[0045] The all-organic anhydrous engine coolant of the present embodiment comprises following components and percentage by weight:

[0046] Coolant base fluid------propylene glycol: 22.5741%, ethylene glycol: 49.6729%;

[0047] All-organic corrosion inhibitor --- sebacic acid: 1%, adipic acid: 1.5%, terpolymeric acid: 0.5%, sodium benzoate: 1%;

[0048] Azole corrosion inhibitor --- mercaptobenzothiazole: 0.4%;

[0049] Viscosity specific heat regulator --- diethylene glycol monoethyl ether: 20%;

[0050] Ph value regulator------2-amino-2-methyl-1-propanol: 1.5%, diethyl phosphate: 1.8%;

[0051] Defoamer------polyol block polyether: 0.05%;

[0052] Dyeing agent --- metal complex dye: 0.003%.

[0053] Preparation process: Mix ethylene glycol and propylene glycol at normal temperature and pressure, stir evenly, and then mix sebacic acid, adipic acid, ternary polycarboxylic acid, sodium benzoate, mercaptobenzothiazole, diethylene glycol monoethyl ether, Polyol block polyeth...

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PUM

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Abstract

The invention aims at providing an all-organic waterless engine coolant with high storage alkalinity and long service life, which specifically contains the following components by weight percentage: 20-92% of propylene glycol, 0-60% of ethylene glycol, 0.6-5.5% of all-organic corrosion inhibitor, 5-20% of viscosity specific heat conditioning agents, 1.5-5.0% of potential of hydrogen (pH) conditioning agents, 0.01-0.1% of antifoaming agents and 0.001-0.01% of coloring agents. The boiling point of the all-organic waterless engine coolant reaches 180-190 DEG C, the freezing point reaches below -50 DEG C, and the all-organic waterless engine coolant is free of inorganic salt, so that defects of the traditional coolant of being low in boiling point, apt to have electrochemical corrosion and cavitation corrosion, apt to generate scale and the like are overcome, engine power is improved, noise is reduced, and fuel is saved. The all-organic waterless engine coolant has storage alkalinity larger than 25 ml and very long service life, can be used for a life time after being injected for once, does not need to be added with supplement annexing agents (SCA), and is good in market prospect.

Description

technical field [0001] The invention belongs to the technical field of cooling liquid, and in particular relates to an all-organic anhydrous engine cooling liquid. Background technique [0002] Coolant is the cooling medium of the engine circulating cooling system. It is mainly composed of antifreeze, corrosion inhibitor, defoamer, colorant, buffer, etc. The high-quality coolant has antifreeze, anti-boiling, anti-corrosion, anti-scale, etc. Function. [0003] The current mainstream coolant is ethylene glycol water-containing coolant. Due to the low volatility of ethylene glycol, low vapor pressure, moderate viscosity and small change with temperature, good heat conduction, moderate price, and good compatibility with water, The remarkable effect of lowering the freezing point makes this glycol conventional coolant widely used. [0004] With the development of the automobile industry, the engine is developing towards high load and high technology, and the working state of th...

Claims

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Application Information

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IPC IPC(8): C09K5/20
Inventor 叶少林申敏邹尚宏
Owner GUANGZHOU BIAOBANG CAR CARE IND
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