CN113105867A - Airport pavement deicing fluid and preparation method and application thereof - Google Patents
Airport pavement deicing fluid and preparation method and application thereof Download PDFInfo
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- CN113105867A CN113105867A CN202110376731.6A CN202110376731A CN113105867A CN 113105867 A CN113105867 A CN 113105867A CN 202110376731 A CN202110376731 A CN 202110376731A CN 113105867 A CN113105867 A CN 113105867A
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- deicing fluid
- acetate
- formate
- sodium
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
- C09K3/185—Thawing materials
Abstract
The invention discloses an airport pavement deicing fluid, a preparation method and application thereof, and relates to the field of environment-friendly products. The corrosion inhibitor is prepared by matching polyhydric alcohol, urea, formate and hydrate thereof, acetate, a corrosion inhibitor, a pH buffering agent and water, and through adjusting the proportion of the raw materials, the potential safety hazard of take-off and landing caused by overhigh alcohol proportion is avoided, the salt damage caused by high organic acid salt proportion is also avoided, the hydrolysis of the formate is reduced, and the occurrence of metal hydrogen embrittlement is avoided. In addition, on one hand, the invention does not contain chloride ions, thus reducing the corrosion to vehicles, pavements and steel bars; on the other hand, the content of alcohol in the components is obviously reduced, the use of unnecessary components such as wetting agent and surfactant is reduced, and the requirements on low freezing point and excellent anti-freezing and de-icing effects are realized while the use of toxic organic matters is reduced.
Description
Technical Field
The invention relates to the field of environment-friendly products, in particular to an airport pavement deicing fluid and a preparation method and application thereof.
Background
In winter, after the airport snows or is covered with an ice layer, the friction coefficient of a runway, a taxiway and an apron is obviously reduced, and the snow cover can also cover runway marks, so that the normal takeoff and landing of the airplane is seriously threatened. Therefore, deicing and anti-icing of airport pavement is one of the indispensable activities for keeping the operation safety in winter in the aviation industry.
In the prior art, the deicing fluid is prepared by using ethylene glycol and propylene glycol as freezing point depressants, sodium formate, potassium formate and the like as preservatives, dipotassium hydrogen phosphate, methyl phenyl triazole and the like as corrosion inhibitors, alkyl nonyl phenol, alcohol amine and the like as wetting agents, surfactants and the like, for example, Chinese patents CN103587700A, CN103587697A, CN105969311A and the like. Although the deicing fluid can play a role in deicing and antifreezing, after the alcohol with too high content is sprayed on the pavement, the friction dilution of the pavement of the airport runway can be influenced, and certain potential safety hazards are caused to the taking-off and landing of the airplane. In patent CN102757763A, the content of organic acid salt is too high, which can produce certain salt damage effect. In addition, formate is an effective component for lowering the freezing point, but the decomposition of formate can generate hydrogen and permeate into the metal such as landing gear and the like to cause the hydrogen embrittlement effect of the metal (oilfield chemistry [ J ], 2010, 27, 100-one 105), and a corrosion inhibitor needs to be added to inhibit the hydrolysis balance of formate, but the single corrosion inhibitor (such as dipotassium hydrogen phosphate) has limited regulating capability and cannot effectively inhibit the hydrolysis balance and decomposition of formate.
Therefore, the formula needs to be improved, and the adverse effect of hydrogen embrittlement of the deicing agent on metal is reduced while the deicing effect is ensured.
Disclosure of Invention
The invention aims to provide an airport pavement deicing fluid and a preparation method and application thereof, wherein the potential safety hazard of take-off and landing caused by overhigh alcohol proportion is avoided by adjusting the proportion and components of raw materials, the salt damage caused by high organic acid salt proportion is also avoided, the hydrolysis of formate is reduced, and the occurrence of metal hydrogen embrittlement is avoided.
In order to achieve the effect, the airport deicing fluid comprises the following components in percentage by weight:
10 to 40 percent of polyhydric alcohol,
5 to 40 percent of urea,
0 to 40% of formate and its hydrate,
0 to 40% of acetate,
0.01 to 1 percent of corrosion inhibitor,
0.1 to 5 percent of pH buffer agent,
the balance being water.
Preferably, the airport deicing fluid comprises the following components in percentage by weight:
15 to 38 percent of polyhydric alcohol,
8 to 35 percent of urea,
0 to 30% of formate and its hydrate,
0 to 30% of acetate,
0.01 to 0.8 percent of sustained-release agent,
0.1 to 4 percent of pH buffer agent,
the balance being water.
More preferably, the airport deicing fluid comprises the following components in percentage by weight:
20 to 37 percent of polyhydric alcohol,
10 to 35 percent of urea,
0 to 30% of formate and its hydrate,
0 to 30% of acetate,
0.01 to 0.8 percent of sustained-release agent,
0.1 to 4 percent of pH buffer agent,
the balance being water.
Most preferably, the airport deicing fluid comprises the following components in percentage by weight:
25 to 37 percent of polyhydric alcohol,
10-30% of urea
0 to 25% of formate and its hydrate,
0 to 20% of acetate,
0.01 to 0.5 percent of sustained-release agent,
0.1 to 3 percent of pH buffer agent,
the balance being water.
Further, the polyalcohol is selected from any one of or the combination of at least two of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, butanediol, glycerol and pentaerythritol;
the formate and the hydrate thereof are selected from any one or the combination of at least two of sodium formate, sodium formate dihydrate, potassium formate and calcium formate;
the acetate is selected from any one of sodium acetate, potassium acetate, calcium acetate and magnesium acetate or the combination of at least two of the sodium acetate, the potassium acetate, the calcium acetate and the magnesium acetate.
Further, the corrosion inhibitor is selected from azole compounds.
Further, the azole compound is selected from any one or a combination of at least two of mercaptobenzothiazole, mercaptobenzimidazole, aminobenzimidazole, methylbenzimidazole, benzotriazole, methylbenzotriazole and methylbenzotriazole derivatives.
Further, the PH buffer is selected from any one of a boric acid-borax buffer system, a glycine-sodium hydroxide buffer system, a borax-sodium hydroxide buffer system, a sodium carbonate-sodium bicarbonate buffer, and a phosphate buffer, or a combination of at least two of them.
The invention also discloses a preparation method of the airport pavement deicing fluid, which comprises the following steps: and (3) taking the solid components according to the proportion, adding the solid components into water, stirring to completely dissolve the solid components, then adding other residual components, and uniformly mixing to obtain the airport pavement deicing fluid.
As an application, the airport deicing fluid disclosed by the technical scheme is used for deicing and anti-icing of airport pavement.
The invention has the beneficial effects that:
on one hand, the invention does not contain chloride ions, thus reducing the corrosion to vehicles and pavement steel bars; on the other hand, the content of alcohol in the components is obviously reduced, the use of unnecessary components such as wetting agents and surfactants is reduced, and the requirements on low freezing point and excellent anti-freezing and deicing effects are realized while the use of toxic organic substances (main components of the wetting agents) is reduced.
The invention adopts a buffer solution system, can ensure that the pH value is maintained in a wider range by low content, can inhibit the decomposition of formate to the maximum extent and prevent the occurrence of hydrogen embrittlement.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, those who do not specify specific conditions are performed according to conventional conditions or conditions recommended by the manufacturer, and those who do not specify the reagents or instruments used are conventional products commercially available.
Comparative example
The airport deicing fluid comprises the following components in percentage by weight: 35% of 1, 2-propylene glycol, 10% of sodium formate, 18% of urea, 0.1% of aminobenzimidazole and the balance of water;
the preparation method comprises the following steps: according to the proportion, sodium formate, urea and aminobenzimidazole are taken and added into water, the mixture is stirred to be completely dissolved, and then other residual components are added and mixed evenly, so that the airport deicing fluid CBY-0 is obtained.
Example 1
The airport deicing fluid comprises the following components in percentage by weight: 35% of 1, 2-propylene glycol, 10% of sodium formate, 18% of urea, 0.1% of aminobenzimidazole, 1% of disodium hydrogen phosphate-sodium hydrogen phosphate (9: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, sodium formate, urea, aminobenzimidazole and disodium hydrogen phosphate-sodium hydrogen phosphate (9: 1 mass ratio) are taken and added into water, the mixture is stirred to be completely dissolved, then other residual components are added, and the mixture is uniformly mixed, so that the airport deicing fluid CBY-1 is obtained.
Example 2
The airport deicing fluid comprises the following components in percentage by weight: 36% of ethylene glycol, 8% of potassium formate, 12% of sodium acetate, 21% of urea, 0.1% of methylbenzimidazole, 0.9% of sodium carbonate-sodium bicarbonate (9: 1 mass ratio), and the balance of water;
the preparation method comprises the following steps: adding potassium formate, sodium acetate, urea, methylbenzimidazole, sodium carbonate-sodium bicarbonate (9: 1 mass ratio) into water, stirring to completely dissolve the potassium formate, the sodium acetate, the urea, the methylbenzimidazole and the sodium carbonate-sodium bicarbonate, adding other residual components, and uniformly mixing to obtain the airport deicing fluid CBY-2.
Example 3
The airport deicing fluid comprises the following components in percentage by weight: 36% of 1, 3-propylene glycol, 8% of potassium acetate, 25% of urea, 0.3% of benzotriazole, 1.5% of sodium carbonate-sodium bicarbonate (9: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: adding potassium acetate, urea, methylbenzimidazole and sodium carbonate-sodium bicarbonate (in a mass ratio of 9: 1) into water, stirring to completely dissolve the potassium acetate, urea, methylbenzimidazole and sodium carbonate-sodium bicarbonate, adding other residual components, and uniformly mixing to obtain the airport deicing fluid CBY-3.
Example 4
The airport deicing fluid comprises the following components in percentage by weight: 35% of 1, 2-propylene glycol, 10% of calcium acetate, 14% of urea, 0.5% of methylbenzotriazole, 0.5% of borax-sodium hydroxide (2.5: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, adding calcium acetate, urea, methylbenzotriazole and borax-sodium hydroxide into water, stirring to completely dissolve the calcium acetate, the urea, the methylbenzotriazole and the borax-sodium hydroxide, adding other residual components, and uniformly mixing to obtain the airport deicing fluid CBY-4.
Example 5
The airport deicing fluid comprises the following components in percentage by weight: 32% of 1, 2-propylene glycol, 12.5% of magnesium acetate, 24% of urea, 0.2% of mercaptobenzimidazole, 0.5% of borax-sodium hydroxide (2.5: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, adding magnesium acetate, urea, mercaptobenzimidazole and borax-sodium hydroxide (in a mass ratio of 2.5: 1) into water, stirring to completely dissolve the magnesium acetate, urea, mercaptobenzimidazole and borax-sodium hydroxide, adding other residual components, and uniformly mixing to obtain colorless transparent liquid, namely the airport deicing liquid CBY-5.
Example 6
The airport deicing fluid comprises the following components in percentage by weight: 28% of 1, 3-propylene glycol, 16.5% of sodium acetate, 24% of urea, 0.1% of mercaptobenzimidazole, 0.8% of glycine-sodium hydroxide (2: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, adding sodium acetate, urea, mercaptobenzimidazole and glycine-sodium hydroxide (in a mass ratio of 2: 1) into water, stirring to completely dissolve the sodium acetate, urea, mercaptobenzimidazole and glycine-sodium hydroxide, then adding other residual components, uniformly mixing, and obtaining colorless transparent liquid, namely the airport deicing liquid CBY-6.
Example 7
The airport deicing fluid comprises the following components in percentage by weight: 36% of ethylene glycol, 10% of calcium formate, 25% of urea, 0.1% of benzotriazole, 0.5% of glycine-sodium hydroxide (2: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, calcium formate, urea, benzotriazole and glycine-sodium hydroxide (in a mass ratio of 2: 1) are added into water, stirred to be completely dissolved, and then other residual components are added and mixed uniformly to obtain colorless transparent liquid, namely the airport deicing liquid CBY-7.
Example 8
The airport deicing fluid comprises the following components in percentage by weight: 30% of ethylene glycol, 14% of sodium formate, 21% of urea, 0.1% of methylbenzimidazole, 1% of sodium carbonate-sodium bicarbonate (9: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: sodium formate, urea, methylbenzimidazole and sodium carbonate-sodium bicarbonate (9: 1 by mass) are added into water, stirred to be completely dissolved, and then other residual components are added and mixed uniformly to obtain the airport deicing fluid CBY-8.
Example 9
The airport deicing fluid comprises the following components in percentage by weight: 35% of glycerol, 12% of calcium acetate, 12% of urea, 0.1% of aminobenzimidazole, 1% of disodium hydrogen phosphate-sodium hydrogen phosphate (9: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, adding calcium acetate, urea, aminobenzimidazole and disodium hydrogen phosphate-sodium hydrogen phosphate (9: 1 mass ratio) into water, stirring to completely dissolve the calcium acetate, the urea, the aminobenzimidazole and the disodium hydrogen phosphate-sodium hydrogen phosphate, adding other residual components, and uniformly mixing to obtain a milky white liquid, namely the airport deicing liquid CBY-9.
Example 10
The airport deicing fluid comprises the following components in percentage by weight: 29% of 1, 3-propylene glycol, 24% of potassium formate, 14% of urea, 0.1% of aminobenzimidazole, 0.8% of sodium carbonate-sodium bicarbonate (9: 1 mass ratio) and the balance of water;
the preparation method comprises the following steps: according to the proportion, adding potassium formate, urea, aminobenzimidazole, sodium carbonate-sodium bicarbonate (9: 1 mass ratio) into water, stirring to completely dissolve the potassium formate, the urea, the aminobenzimidazole and the sodium carbonate-sodium bicarbonate, adding other residual components, uniformly mixing, and obtaining colorless transparent liquid, namely the airport deicing liquid CBY-10.
Test for 1-freezing point test and hydrogen embrittlement test
The airport deicing fluid obtained in examples 1 to 10 was tested for its freezing point diluted with water of type ASTM D1193IV in a mass ratio of 1:1 in accordance with ASTM D1177, and the results are shown in table 1.
The hydrogen embrittlement effect of the airport deicing fluid obtained in examples 1 to 10 on metals was tested according to the requirements of ASTM F519, and the results are shown in table 1.
The result shows that the airport deicing fluid has very low freezing point, can be used in the winter environment at the temperature of 15 ℃ below zero or even lower, is not frozen, and does not bring safety problems when being used for airport deicing.
Table 1, ice point test results of airport deicing fluid obtained in examples 1-10
Experimental detection 2-Total immersion Corrosion test
The full immersion corrosion test was performed on example 10:
the test is carried out according to the requirements of ASTM F483, and the following test piece is adopted, and the sample stock solution does not cause obvious corrosion of the following test piece after being immersed for 24 hours, and the quality change of the test piece does not exceed the technical requirements.
Test piece:
a: an aluminium alloy conforming to SAE AMS 4037 anodised according to SAE AMS 2470;
b: an aluminum alloy meeting SAE AMS 4041;
c: an aluminum alloy meeting SAE AMS 4049;
d: magnesium alloys conforming to SAE AMS 4376 and dichromated according to SAE AMS 2475;
e: titanium alloys conforming to SAE AMS 4911;
f: carbon steel to SAE AMS 5045;
the experimental results are as follows:
experiment detection 3-Clamp Corrosion experiment
The clip corrosion test was performed on example 10:
the test was carried out according to the requirements of ASTM F1110, using test pieces in which the corrosion of the sample stock solution on the test pieces should not exceed 1.
Test piece:
a: anodizing the aluminum alloy meeting SAE AMS 4037 according to MIL-A-8625I;
b: an aluminum alloy meeting SAE AMS 4049;
c: anodizing the aluminum alloy meeting SAE AMS 4045 according to MIL-A-8625I;
d: an aluminum alloy conforming to SAE AMS 4041.
The experimental results are as follows:
experiment for detecting 4-clapboard circulating corrosion experiment
And (3) a separator cyclic corrosion test:
the test was carried out according to the requirements of SAE AIR 6130, using the following test pieces, the sample stock solution after the test should not change the average mass of the test pieces by more than 0.3mg/cm2, reporting Ph before and after the sample stock solution test.
Test piece:
a 4130 steel conforming to SAE AMS 6350, cadmium plated as QQ-P-416 type 1.
And (3) test results:
stock solution: the quality of the test piece changed: 0.041mg/cm 2.
Ph before test was 9.0, and Ph after test was 8.9.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.
Claims (10)
1. The deicing fluid for the airport pavement is characterized by comprising the following components in percentage by weight:
10 to 40 percent of polyhydric alcohol,
5 to 40 percent of urea,
0 to 40% of formate and its hydrate,
0 to 40% of acetate,
0.01 to 1 percent of corrosion inhibitor,
0.1 to 5 percent of pH buffer agent,
the balance being water.
2. An airport pavement deicing fluid according to claim 1, characterized by comprising the following components in percentage by weight:
25 to 37 percent of polyhydric alcohol,
10-30% of urea
0 to 25% of formate and its hydrate,
0 to 20% of acetate,
0.01 to 0.5 percent of sustained-release agent,
0.1 to 3 percent of pH buffer agent,
the balance being water.
3. The airfield pavement deicing fluid according to any one of claims 1 or 2, wherein: the polyhydric alcohol is any one or combination of at least two of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, butanediol, glycerol and pentaerythritol.
4. The airfield pavement deicing fluid according to any one of claims 1 or 2, wherein: the formate and the hydrate thereof are selected from any one or the combination of at least two of sodium formate, sodium formate dihydrate, potassium formate and calcium formate.
5. The airfield pavement deicing fluid according to any one of claims 1 or 2, wherein: the acetate is selected from any one of sodium acetate, potassium acetate, calcium acetate and magnesium acetate or the combination of at least two of the sodium acetate, the potassium acetate, the calcium acetate and the magnesium acetate.
6. The airport deicing fluid according to any one of claims 1 or 2, wherein: the corrosion inhibitor is selected from azole compounds.
7. The airfield pavement deicing fluid according to claim 6, wherein: the azole compound is selected from any one or combination of at least two of mercaptobenzothiazole, mercaptobenzimidazole, aminobenzimidazole, methylbenzimidazole, benzotriazole, methylbenzotriazole and methylbenzotriazole derivatives.
8. The airfield pavement deicing fluid according to any one of claims 1 or 2, wherein: the PH buffering agent is selected from any one or the combination of at least two of a boric acid-borax buffering system, a glycine-sodium hydroxide buffering system, a borax-sodium hydroxide buffering system, a sodium carbonate-sodium bicarbonate buffering system and a phosphate buffering system.
9. The airfield pavement deicing fluid according to any one of claims 1 to 8, characterized by comprising the following steps: and (3) taking the solid components according to the proportion, adding the solid components into water, stirring to completely dissolve the solid components, then adding other residual components, and uniformly mixing to obtain the airport pavement deicing fluid.
10. The deicing fluid for airport pavement as claimed in any one of claims 1 to 8, which is used for deicing and anti-icing of airport pavement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011629110 | 2020-12-31 | ||
| CN2020116291106 | 2020-12-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087720A1 (en) * | 2002-10-28 | 2005-04-28 | Samuels William D. | Deicing/anti-icing fluids |
| CN104403635A (en) * | 2014-12-14 | 2015-03-11 | 林州市鹏华铸业有限公司 | Snow melting agent for railway turnout and preparing method thereof |
| CN104762063A (en) * | 2015-03-26 | 2015-07-08 | 淮南新能源研究中心 | Method for preparing environment-friendly snow-melting agent by using byproduct crude glycerol and waste acetic acid |
| CN106350010A (en) * | 2016-08-19 | 2017-01-25 | 成都民航六维航化有限责任公司 | Environment-friendly airfield pavement deicing agent and preparation method thereof |
| CN113882224A (en) * | 2021-11-18 | 2022-01-04 | 同济大学 | Airport rigid pavement surface in-situ modifier and enhancement modification method |
-
2021
- 2021-04-08 CN CN202110376731.6A patent/CN113105867A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087720A1 (en) * | 2002-10-28 | 2005-04-28 | Samuels William D. | Deicing/anti-icing fluids |
| CN104403635A (en) * | 2014-12-14 | 2015-03-11 | 林州市鹏华铸业有限公司 | Snow melting agent for railway turnout and preparing method thereof |
| CN104762063A (en) * | 2015-03-26 | 2015-07-08 | 淮南新能源研究中心 | Method for preparing environment-friendly snow-melting agent by using byproduct crude glycerol and waste acetic acid |
| CN106350010A (en) * | 2016-08-19 | 2017-01-25 | 成都民航六维航化有限责任公司 | Environment-friendly airfield pavement deicing agent and preparation method thereof |
| CN113882224A (en) * | 2021-11-18 | 2022-01-04 | 同济大学 | Airport rigid pavement surface in-situ modifier and enhancement modification method |
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