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Cooling liquid composition

A technology of composition and cooling liquid, which is applied in the field of aviation aircraft, can solve the problems of corrosion, foam degree and rubber expansion degree without clear requirements for total alkali reserve, and achieve the effect of reliable performance and high dielectric strength

Inactive Publication Date: 2013-03-20
PLA AIR FORCE OIL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product has no clear requirements on quality indicators such as corrosion, foam degree and rubber expansion degree, total alkali reserve, etc.

Method used

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  • Cooling liquid composition
  • Cooling liquid composition
  • Cooling liquid composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Add 100g of qualified base oil (PAO) into a temperature-controllable 200mL reaction kettle and heat it to a range of 80°C to 100°C, then add 2.4g of antioxidant 2,6-di-tert-butylphenol, 0.2g of anti-corrosion agent benzotriazole-aldehyde-amine condensate, and 0.01g antifoaming agent T901, after stirring for about 30 minutes to mix evenly, cool down to room temperature, and filter to obtain the cooling liquid composition product, wherein the weight ratio of antioxidant to preservative is 10:1.

Embodiment 2 to 14

[0065] The cooling liquid composition products of Examples 2 to 14 were prepared according to the same method as in Preparation Example 1, except that the components in Preparation Example 1 were replaced by the weights of the various components in Table 1 below.

[0066] Table 1

[0067]

[0068]

[0069] Test Example

[0070] In the test example, the imported synthetic hydrocarbon cooling liquid was used to carry out the comparative test, and the imported synthetic hydrocarbon cooling liquid was the royal brand synthetic hydrocarbon dielectric cooling liquid produced by British royal company.

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PUM

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Abstract

The invention relates to a cooling liquid composition which is mainly applied to the field of aircrafts. The cooling liquid composition comprises base oil, antioxidant, preservative, and anti-foaming agent. The cooling liquid composition provided by the invention completely meets the index requirements of US Military standard MIL-PRF-87252, is high in dielectric strength, and has the capacity of cooling a component in a refrigerated plate way instead of an immersion way.

Description

technical field [0001] The invention relates to a cooling liquid composition, which is mainly used in the field of aviation vehicles. Background technique [0002] Coolant acts as a coolant to quickly remove heat and cool the engine, thereby effectively protecting the engine from problems caused by overheating. A suitable coolant for this purpose must have the right viscosity at the operating temperature and at the same time have a high specific heat and thermal conductivity. At present, most of the commonly used coolants use ethylene glycol and water as the main components. However, for the engine fields of different purposes, the composition of the coolant is often quite different. For example, the ambient operating temperature in the field of aero-engines is often much lower than that of the vehicle engine, which affects the cooling fluid at a lower operating temperature. The viscosity parameters below put forward higher requirements. In addition, such as anti-corrosio...

Claims

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Application Information

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IPC IPC(8): C09K5/20
Inventor 都长飞赵军刘多强
Owner PLA AIR FORCE OIL MATERIAL RES INST
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