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Thickening road surface deicing and anti-icing fluid and preparation method thereof

A technology of anti-icing fluid and pavement, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of short retention time of deicing and anti-icing fluid, corrosion of metals, and environmental defects of cement, and achieve shear rheology High, increased liquid viscosity, strong thickening ability

Active Publication Date: 2014-07-09
成都民航六维航化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing pavement deicing and anti-icing fluid retention time is relatively short, corrosion damage to metal and cement and environmental protection defects, etc., a thickened pavement deicing and anti-icing fluid and its preparation method are now specially proposed

Method used

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Examples

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preparation example Construction

[0039]The preparation method of thickened pavement deicing and anti-icing fluid is as follows: operate in the following specific order, a) Add the inorganic thickener powder into deionized water, stir vigorously at 20-30°C for 0.1-4 hours or in 40-50°C, use other existing physical dispersion methods for 0.1-1 hour; b) Add organic acid salt, stir for 0.1-2 hours; c) Add corrosion inhibitor, stir for 0.1-2 hours; d) Add surfactant Or / and an auxiliary agent, the auxiliary agent is sodium hydroxide or potassium hydroxide, used to adjust the pH value of the liquid, and stirred for 0.1-2 hours until uniform.

[0040] The patent of the present invention is not limited to the following embodiments, and all the contents and combinations described in the claims belong to the protection of the present invention.

[0041] Formate means a salt in which the acid group is formate (HCOO-).

[0042] Acetate is the result of the carboxyl hydrogen of acetic acid being replaced by a metal, inclu...

Embodiment 1

[0045] components parts by mass Organic acid salt: Potassium formate 50 Deionized water 46 Inorganic thickener: montmorillonite 3.3 Corrosion inhibitor: benzotriazole / disodium hydrogen phosphate mixed 0.2 / 0.1 Surfactant: nonylphenol polyoxyethylene ether TX-4 / TX-10 mixed 0.01 / 0.015 Auxiliary: Sodium Hydroxide 0.15

[0046] Operate in the following specific order, a) Add thickener powder into deionized water, stir vigorously at 25°C for 0.2 hours; b) Add potassium formate, stir for 0.15 hours; c) Add corrosion inhibitor, stir for 0.2 hours ; d) Adding surfactants and additives, stirring for 0.5 hours until uniform.

[0047] The viscosity of the deicing fluid is 51 cp (0°C), and the anti-icing time is 15 minutes. Good material compatibility.

Embodiment 2

[0049] components parts by mass Organic acid salt: Potassium acetate 48 Deionized water 50 Inorganic thickener: lithium magnesium silicate 1.5 Corrosion inhibitor: sodium dihydrogen phosphate / sodium hydrogen phosphate 0.15 / 0.05 Surfactant: fatty alcohol alkyl polyoxyethylene ether AEO-3 / 9 0.015 / 0.01 Auxiliary: Sodium Hydroxide 0.05

[0050] Operate in sequence in the following specific order, a) Add lithium magnesium silicate powder into deionized water, stir and disperse vigorously at 41°C for 0.5 hours; b) Add potassium acetate, stir for 0.2 hours; c) Add sodium dihydrogen phosphate / phosphoric acid Sodium hydrogen, stir for 0.15 hours; d) Add fatty alcohol alkyl polyoxyethylene ether and additives, stir for 1 hour until uniform.

[0051] The viscosity of the deicing fluid is 108 cp (0°C), and the anti-icing time is 25 minutes. Good material compatibility.

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Abstract

The invention belongs to the technical field of a road surface deicing and anti-icing fluid and relates to a thickening road surface deicing and anti-icing fluid and a preparation method thereof. The deicing and anti-icing fluid comprises, by mass, 30-90 parts of at least one organic acid salt, 0.01-10 parts of at least one inorganic thickener, 0.01-1 part of corrosion inhibitor, 0-0.1 part of surfactant, and 10-70 parts of deionized water. Compared with the existing deicing fluid, the road surface deicing and anti-icing fluid has the advantages that the nano inorganic thickener is adopted to improve the viscosity of the deicing and anti-icing fluid; the effective antifreezing time is increased by more than 50%, namely, the time from deicing fluid spraying to invalidation due to natural dilution is extended; and through matching of the organic salt with appropriate corrosion inhibitor, the fluid can be used in an airport environment which has a high requirement for compatibility of materials with the environment.

Description

technical field [0001] The invention belongs to the technical field of pavement deicing and anti-icing fluid, and in particular relates to a thickened pavement deicing and anti-icing fluid and a preparation method thereof. Background technique [0002] Under the icy weather conditions of rain and snow, the ground, roads or airport runways are very easy to freeze. The icing of the airport pavement not only may cause the aircraft to skid off the runway when taxiing, but also is more fatal to the landing of the aircraft, thus threatening the safety of road traffic and aviation operations in winter. The key to preventing ice from forming on the runway is timely removal of snow and ice. The most effective way to prevent the ground from freezing at present is to use deicing and anti-icing deicing agents. Deicing, anti-icing and snow-melting agents include solid deicing agents and de-icing and anti-icing fluids. The deicing and anti-icing fluid melts the pollutants such as ice, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
Inventor 梅拥军周洪韦勇强王航谢麟罗淑文
Owner 成都民航六维航化有限责任公司
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