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A kind of automobile antifreeze and preparation method

A technology of automobile antifreeze and antifungal agent, which is applied in the field of antifreeze, can solve problems such as sodium molybdate pollution, and achieve the effects of reducing metal corrosion, preventing oxidation, and being environmentally friendly

Active Publication Date: 2020-03-10
浙江丹弗中绿科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the need for organic matter and sodium molybdate to cooperate as a corrosion inhibitor in the antifreeze of the prior art, and the use of sodium molybdate is likely to cause pollution, thereby providing a kind of automobile antifreeze and preparation method

Method used

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  • A kind of automobile antifreeze and preparation method

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Embodiment 1

[0026] The present embodiment provides an automobile antifreeze, which includes the following components:

[0027] 1,2-Propanediol 45Kg, deionized water 53Kg, mildew inhibitor 9Kg, camellia oil 7Kg, sodium nitrate 2Kg, methylbenzotriazole 2Kg, KOH 1Kg, 2,6-tert-butyl diphenol 0.2Kg, dispersant 0.7Kg, pH buffer 5Kg, defoamer 1Kg and colorant 0.1Kg.

[0028] The present embodiment provides a method for preparing a vehicle antifreeze, comprising the following steps:

[0029] (1) by the weight of the above-mentioned components, at room temperature, 2,6-tert-butyldiphenol is added to the camellia oil to be treated, and the temperature is raised to 40° C. and stirred for 20min at this temperature;

[0030] (2) The solution obtained in (1), antifungal agent, sodium nitrate, methyl benzotriazole, dispersant, pH buffer, defoamer, KOH and colorant are added to 1,2-propanediol , in N 2 Under the protection, the temperature was first heated to 40 °C, and at this temperature, pulse stir...

Embodiment 2

[0033] The present embodiment provides an automobile antifreeze, which includes the following components:

[0034] 1,2-Propanediol 47Kg, deionized water 53Kg, nickel ferrocene 9Kg, camellia oil 10Kg, sodium nitrate 1Kg, methylbenzotriazole 1Kg, KOH3Kg, 2,6-tert-butyldiphenol 0.1Kg, Polyethylene glycol 200 0.4Kg, sodium barbital buffer 3Kg, polypropylene glycol 2000 0.5Kg and methyl blue 0.1Kg.

[0035] The present embodiment provides a method for preparing a vehicle antifreeze, comprising the following steps:

[0036] (1) by the weight of the above-mentioned components, at room temperature, 2,6-tert-butyldiphenol is added to the camellia oil to be treated, and the temperature is raised to 40° C. and stirred for 20min at this temperature;

[0037] (2) after the solution obtained in (1) was ultrasonicated for 3 min at a water bath temperature of 40° C., mixed with nickel ferrocene formate, sodium nitrate, methyl benzotriazole, polyethylene glycol 200, sodium barbital Buffer, p...

Embodiment 3

[0040] The present embodiment provides an automobile antifreeze, which includes the following components:

[0041] 1,2-Propanediol 45Kg, deionized water 53Kg, nickel ferrocene 7Kg, camellia oil 9Kg, sodium nitrate 1Kg, methylbenzotriazole 1.5Kg, KOH 2kg, 2,6-tert-butyldiphenol 0.2Kg , polyethylene glycol 200 0.5Kg, sodium barbital buffer 4Kg, polypropylene glycol 2000 0.7Kg and methyl blue 0.1Kg.

[0042] The present embodiment provides a method for preparing a vehicle antifreeze, comprising the following steps:

[0043] (1) by the weight of the above-mentioned components, at room temperature, 2,6-tert-butyldiphenol is added to the camellia oil to be treated, and the temperature is raised to 40° C. and stirred for 20min at this temperature;

[0044] (2) after the solution obtained in (1) was ultrasonicated for 3 min at a water bath temperature of 40° C., mixed with nickel ferrocene formate, sodium nitrate, methyl benzotriazole, polyethylene glycol 200, sodium barbital Buffer...

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Abstract

The invention discloses a preparation method of automotive antifreeze fluid. The automotive antifreeze fluid is prepared from the following components in parts by weight: 45 to 47 parts of 1,2-propylene glycol, 50 to 53 parts of deionized water, 6 to 9 parts of a mildew preventive, 7 to 10 parts of tea oil, 1 to 2 parts of sodium nitrate, 1 to 2 parts of methylbenzotriazole, 1 to 3 parts of KOH, 0.1 to 0.2 part of 2,6-tert butyl biphenol, 0.4 to 0.7 part of a dispersing agent, 3 to 5 parts of a pH buffer agent, 0.5 to 1 part of a defoaming agent and 0.1 part of a coloring agent. The automotive antifreeze fluid disclosed by the invention is good in metal corrosion inhibition effect, and is environmental-friendly and easy to degrade.

Description

technical field [0001] The invention relates to the field of antifreeze, in particular to an automobile antifreeze and a preparation method. Background technique [0002] Antifreeze is a compound solution that lowers the freezing point of coolant in automotive cooling systems. Antifreeze is mainly composed of corrosion inhibitor, stabilizer, dispersant, pH buffer, antifoaming agent and dyeing agent. At present, the corrosion inhibitors in antifreeze are mostly silicates, phosphates and nitrites. The above three corrosion inhibitors can effectively protect the lining metal and slow down or inhibit the corrosion of the metal. The corrosion inhibitor itself consumes too fast to protect the lining metal for a long time, and the silicate is easy to aggregate and deposit to form a silicate glue, which will wear the seals, and the phosphate is easy to precipitate with hard water substances, which affects heat dissipation. In addition, nitrite will react with amine substances in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/20C23F11/14C23F11/12
CPCC09K5/20C23F11/126C23F11/149
Inventor 方志良
Owner 浙江丹弗中绿科技股份有限公司
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