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Polymer-thickened non-Newton aircraft deicing/anti-icing liquid

A non-Newtonian, polymer technology, applied in the field of liquid, snow, and ice used in frost, can solve the problems of limited anti-icing performance and cannot fully meet the requirements of aircraft anti-icing, and achieve slow viscosity drop and good dynamic performance , to ensure the effect of normal flight

Inactive Publication Date: 2010-09-15
SHANXI GAOKE PHYSICAL & CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the de-icing / anti-icing fluid widely used in China is a Newtonian fluid, whose main function is to de-ice, but its anti-icing performance is very limited—generally, it can only provide a few minutes of anti-icing retention time, which cannot fully meet the needs of aircraft. Anti-icing requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1. Preparation of 100 kg of deicing / anti-icing fluid

[0032] The weight proportion between each component is as follows:

[0033] Freezing point depressant C2 ~ C5 glycol 45 kg

[0034] Thickener cross-linked polyacrylic resin 0.05 kg

[0035] Neutralizer Potassium Hydroxide 0.05 kg

[0036] Viscosity control agent edetate disodium 0.5 kg

[0037] Corrosion inhibitor dipotassium hydrogen phosphate 0.05 kg

[0038] Surfactant fatty alcohol polyoxyethylene ether 0.1 kg

[0039] Solvent industrial ethanol 20 kg

[0040] Solvent deionized water 34.25 kg.

[0041] The preparation process of the present embodiment is as follows:

[0042] 1. Add solvent to the reaction kettle

[0043] 2. Turn on the stirring system and add glycol

[0044] 3. Add high molecular polymer, stir well until completely dissolved

[0045] 4. Add surfactant, stir well until evenly dispersed

[0046] 5. Add corrosion inhibitor, stir well until completely dissolved

[0047] 6. Add ne...

Embodiment 2

[0049] Example 2. Preparation of 100 kg of deicing / anti-icing fluid

[0050] The components contained in the fluid include: freezing point depressants, thickeners, neutralizers, viscosity control agents, corrosion inhibitors and surfactants. The weight proportion between each component is as follows:

[0051] Freezing point depressant C2 ~ C5 glycol 50 kg

[0052] Thickener methacrylic acid cross-linked polymer 0.5 kg

[0053] Neutralizing agent sodium hydroxide 0.05 kg

[0054] Viscosity control agent sodium acetate 0.05 kg.

[0055] Corrosion inhibitor methyl benzotriazole 0.08 kg

[0056] Surfactant Alkylphenol-based polyoxyethylene ether 0.05 kg

[0057] Solvent industrial ethanol 10 kg

[0058] Solvent deionized water 39.27 kg

[0059] The preparation method of this embodiment is the same as that of Example 1.

Embodiment 3

[0060] Example 3. Preparation of 100 kg of de-icing / anti-icing fluid

[0061] The components contained in the fluid include: freezing point depressants, thickeners, neutralizers, viscosity control agents, corrosion inhibitors and surfactants.

[0062] Freezing point depressant C2 ~ C5 glycol 65 kg

[0063] Thickener polyalkyl pentaerythritol and acrylic acid crosslinked polymer 5 kg

[0064] Neutralizer triethanolamine 5 kg

[0065] Viscosity control agent sodium molybdate 5 kg

[0066] Corrosion inhibitor benzotriazole 2.5 kg

[0067] Corrosion inhibitor thiourea 2.5 kg

[0068] Surfactant fatty alcohol polyoxyethylene polyoxypropylene ether 5 kg

[0069] Solvent deionized water 10 kg

[0070] The preparation method of this embodiment is the same as that of Example 1.

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PUM

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Abstract

The invention provides a polymer-thickened non-Newton aircraft deicing / anti-icing liquid, comprising the following components based on weight percentages: 45%-65% of freezing point depressant, 0.05%-5% of thickening agent, 0.05%-5% of neutralizing agent, 0.05%-5% of viscosity control agent, 0.05%-5% of corrosion inhibitor, 0.05%-5% of surfactant, and the balance liquid. The preparation method of the invention comprises: sequentially adding the freezing point depressant, the thickening agent, the neutralizing agent, the viscosity control agent, the corrosion inhibitor and the surfactant to solvent, respectively stirring and dissolving to obtain the product. The polymer-thickened non-Newton aircraft deicing / anti-icing liquid has the characteristics of high apparent viscosity, slowly reduced viscosity after shearing treatment, excellent anti-icing property and good dynamic performance. After anti-icing treatment via the product, the outer surface of an aircraft can not be refrozen and frosted within a very long time range, thus effectively avoiding a refreezing phenomenon of the aircraft during the delay period in an airport, and guaranteeing normal flight of the aircraft under an ice and snow weather.

Description

technical field [0001] The present invention relates to a de-icing / anti-icing fluid, in particular, a liquid for removing ice, snow and frost remaining on the surface of an aircraft on the ground. Background technique [0002] In winter, the surface of an aircraft staying on the ground is prone to ice, snow, frost, etc., which seriously affects the normal flight and safety of the aircraft. hard to control. In recent years, there have been many air accidents related to icing on the surface of aircraft in the world. [0003] At present, the de-icing / anti-icing fluid widely used in China is a Newtonian fluid, whose main function is to de-ice, but its anti-icing performance is very limited—generally, it can only provide a few minutes of anti-icing retention time, which cannot fully meet the needs of aircraft. Anti-icing requirements. Contents of the invention [0004] The purpose of the present invention is to overcome the deficiencies of existing Newtonian fluids for deici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
Inventor 常征常青李霖
Owner SHANXI GAOKE PHYSICAL & CHEM TECH
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