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Deicing and anti-icing liquid for airplane

An anti-icing fluid and aircraft technology, applied in the field of anti-icing and aircraft de-icing, can solve the problems of not considering hard water stability and thermal stability, etc., achieving superior anti-icing performance, Effect of reducing deicing time and deicing cost and improving support capability

Active Publication Date: 2012-10-17
西安高科理化技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Other domestic aircraft deicing and anti-icing fluids were developed relatively early, but their disadvantages are: they did not consider the water spray tolerance test (WSET) of its hard water stability and thermal stability to meet the 3-minute requirement, nor have they achieved Its water spray resistance test (WSET) for hard water stability and heat stability reaches 3 minutes inspection report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of aircraft deicing, anti-icing fluid, including the following components (by weight percentage):

[0022] Propylene Glycol 35%

[0023] Diethylene glycol 45%

[0024] Tolyltriazole 8%

[0025] Triethanolamine 8%

[0026] Laureth (9) ether 2%

[0027] Linear Alcohol (16-18) Polyoxyethylene (35) Ether 1%

[0028] Potassium hydroxide 1%

[0029] Deionized water 25%

[0030] pH: 9.0

[0031] Freezing point (v:v, 1:1 dilution): ≤-20.1℃

[0032] The aircraft deicing / anti-icing fluid of this embodiment is diluted with 50% ASTM D1193 type IV water, and the freezing point of the fluid obtained is lower than -20.1°C, which meets the requirements of AMS1424 Newton type deicing and anti-icing fluid, and is a high-safety fluid De-icing anti-icing fluid. The water spray anti-icing time (WSET) of the 75 / 25 aqueous solution of the aircraft deicing / anti-icing liquid of the present embodiment is 3 minutes 25 seconds ± 11 seconds, 3 minutes higher than the international s...

Embodiment 2

[0034] A kind of aircraft deicing, anti-icing fluid, including the following components (by weight percentage):

[0035] Propylene Glycol 60%

[0036] Diethylene glycol 25%

[0037] Tolyltriazole 8%

[0038] Triethanolamine 4%

[0039] Laureth (9) ether 2%

[0040] Linear Alcohol (16-18) Polyoxyethylene (35) Ether 3%

[0041] Potassium Hydroxide 3%

[0042] Deionized water 25%

[0043] pH: 9.2

[0044] Freezing point (v:v, 1:1 dilution): ≤-25.2℃

[0045] The aircraft deicing / anti-icing fluid of this embodiment is diluted with 50% ASTM D1193 type IV water, and the freezing point of the fluid obtained is lower than -25.2°C, which meets the requirements of AMS1424 Newton type deicing and anti-icing fluid, and is a high-safety fluid. De-icing anti-icing fluid. The water spray anti-icing time (WSET) of the 75 / 25 aqueous solution of the aircraft deicing / anti-icing fluid of the present embodiment is 5 minutes 58 seconds ± 11 seconds, far higher than the 3 minutes of the inte...

Embodiment 3

[0047] A kind of aircraft deicing, anti-icing fluid, including the following components (by weight percentage):

[0048] Propylene Glycol 45%

[0049] Diethylene glycol 38%

[0050] Tolyltriazole 1.96%

[0051] Triethanolamine 2%

[0052] Lauryl polyoxyethylene (9) ether 0.02%

[0053] Linear alcohol (16-18) polyoxyethylene (35) ether 0.02%

[0054] Potassium hydroxide 2%

[0055] Deionized water 16%

[0056] pH: 8.8

[0057] Freezing point (v:v, 1:1 dilution): ≤-24.8℃

[0058]The aircraft deicing / anti-icing fluid of this embodiment is diluted with 50% ASTM D1193 type IV water, and the freezing point of the fluid obtained is lower than -24.8°C, which meets the requirements of AMS1424 Newton type deicing and anti-icing fluid, and is a high-safety fluid De-icing anti-icing fluid. The water spray anti-icing time (WSET) of the 75 / 25 aqueous solution of the aircraft deicing / anti-icing fluid of the present embodiment is 5 minutes 02 seconds ± 9 seconds, far higher than the ...

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Abstract

The invention discloses deicing and anti-icing liquid for an airplane. The deicing and anti-icing liquid comprises the following components by weight: 30-50% of propylene glycol, 25-52% of diethylene glycol, 0.15-8% of methylbenzotriazole, 0.8-8% of triethanolamine, 0.02-2% of polyoxyethylene lauryl (9) ether, 0.01-3% of linear alcohol (16-18) polyoxyethylene (35) ether, 1-3% of potassium hydroxide and 16-25% of deionized water, wherein a pH is 8.6-9.0+ / -0.5, and a freezing point is not more than -25 DEG C. The invention aims at the requirement that a water atomizing tolerance test for hard water stability and hot stability of the deicing and anti-icing liquid of the airplane lasts for 3 minutes, provides a new design project on selection of a freezing point decreasing agent, a corrosion inhibitor, an impregnating agent and an inhibitor, and adopts an organic freezing point decreasing agent, an organic corrosion inhibitor, an organic impregnating agent and an organic inhibitor, so that the deicing and anti-icing liquid is more environment-friendly and the anti-icing performance is more excellent.

Description

technical field [0001] The invention belongs to the technical field of aircraft deicing and anti-icing, and in particular relates to an aircraft deicing and anti-icing liquid, which is used for removing deposits of frost, ice and snow on the outer surface of an aircraft. Background technique [0002] Aircraft de-icing / anti-icing fluid is generally diluted with hard water and heated for use in actual use, and the actual anti-icing time is reduced. The latest international aviation de-icing / anti-icing highest standard SAE AMS 1424 "SAE Type I Aircraft De-icing / Anti-icing Fluid" revision K revision of hard water stability and thermal stability, that is, diluted with hard water and heated anti-icing fluid Ice time (Water Spray Resistance Test (WSET)) is required to be higher than 3 minutes. [0003] Other domestic aircraft deicing and anti-icing fluids were developed relatively early, but their disadvantages are: they did not consider the water spray tolerance test (WSET) of it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 常征李少江聂国庆朱伟妮
Owner 西安高科理化技术有限责任公司
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