CN113801633A - Anti-icing fluid and preparation method and application thereof - Google Patents
Anti-icing fluid and preparation method and application thereof Download PDFInfo
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- CN113801633A CN113801633A CN202010543205.XA CN202010543205A CN113801633A CN 113801633 A CN113801633 A CN 113801633A CN 202010543205 A CN202010543205 A CN 202010543205A CN 113801633 A CN113801633 A CN 113801633A
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- Prior art keywords
- icing
- icing fluid
- polyalkylene glycol
- corrosion inhibitor
- glycol
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- 239000012530 fluid Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 229920001515 polyalkylene glycol Polymers 0.000 claims abstract description 22
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 12
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 3
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000005260 corrosion Methods 0.000 claims description 18
- 239000003112 inhibitor Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000004094 surface-active agent Substances 0.000 claims description 11
- 239000002562 thickening agent Substances 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 8
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000003002 pH adjusting agent Substances 0.000 claims description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- 230000000379 polymerizing effect Effects 0.000 claims description 4
- 229960004063 propylene glycol Drugs 0.000 claims description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 4
- 239000007798 antifreeze agent Substances 0.000 claims description 3
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 claims description 2
- KDVYCTOWXSLNNI-UHFFFAOYSA-N 4-t-Butylbenzoic acid Chemical compound CC(C)(C)C1=CC=C(C(O)=O)C=C1 KDVYCTOWXSLNNI-UHFFFAOYSA-N 0.000 claims description 2
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- 230000002528 anti-freeze Effects 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 2
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 2
- 235000010234 sodium benzoate Nutrition 0.000 claims description 2
- 239000004299 sodium benzoate Substances 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 235000015393 sodium molybdate Nutrition 0.000 claims description 2
- 239000011684 sodium molybdate Substances 0.000 claims description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 2
- 235000010344 sodium nitrate Nutrition 0.000 claims description 2
- 239000004317 sodium nitrate Substances 0.000 claims description 2
- 235000010288 sodium nitrite Nutrition 0.000 claims description 2
- 239000000230 xanthan gum Substances 0.000 claims description 2
- 229920001285 xanthan gum Polymers 0.000 claims description 2
- 235000010493 xanthan gum Nutrition 0.000 claims description 2
- 229940082509 xanthan gum Drugs 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims 2
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 1
- -1 alkylbenzene sulfonate Chemical class 0.000 claims 1
- 238000007710 freezing Methods 0.000 abstract description 11
- 230000008014 freezing Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 9
- 238000005507 spraying Methods 0.000 description 9
- 238000003756 stirring Methods 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention relates to the technical field of anti-icing fluid, in particular to an anti-icing composition and a preparation method and application thereof. The anti-icing composition comprises polyalkylene glycol and an antifreezing agent, wherein the mass ratio of the polyalkylene glycol to the antifreezing agent is 1: 200-800, wherein the polymerization component of the polyalkylene glycol comprises ethylene oxide and propylene oxide, and the mass ratio of the ethylene oxide to the propylene oxide is 3: 1-1: 3. According to the invention, a great deal of research shows that a layer of continuous liquid film can be formed on the surface of the rail by adding the polyalkylene glycol with a specific proportion into the anti-icing liquid, the liquid film effectively isolates the surface of the rail from the ice layer, and the adhesion of the ice layer is reduced. When the anti-freezing solution provided by the invention is practically applied to anti-freezing of a track, the freezing time can be effectively delayed, and an ice layer can be easily removed after freezing, so that a better anti-freezing effect is achieved. The anti-icing fluid provided by the invention has no corrosivity on the track and has small influence on the environment.
Description
Technical Field
The invention relates to the technical field of anti-icing fluid, in particular to anti-icing fluid and a preparation method and application thereof.
Background
Under low-temperature weather conditions such as snow, freezing rain, frost and the like, the surfaces of various objects exposed in the air are naturally frozen to cause equipment functional failure and various potential safety hazards. Railway turnouts are important equipment of stations, and the freezing of the turnouts directly affects the vehicle dispatching of the stations, so that railway transportation is interrupted in severe cases, and the phenomena of braking force reduction and climbing difficulty are caused by the freezing of train tracks. And in part of urban rail transit, the power supply rail is adopted for supplying power, the current of the train is difficult to be awarded due to the icing of the surface of the power supply rail, and the train stops running.
At present, the rail deicing mainly depends on methods such as manual cleaning and electric heating deicing, the manual cleaning efficiency is low, a large amount of manpower is required to be invested, the electric heating method is high in investment cost, and a large amount of electric quantity is consumed in the deicing process.
The anti-icing method adopts the anti-icing liquid to carry out anti-icing, and is characterized in that a low-freezing-point solution with certain adhesion capability is sprayed on the surface of an object before or after icing, so that the icing phenomenon can be effectively prevented, the method is an active anti-icing technology, and compared with passive deicing methods such as manual knocking and hot water spraying, the method has the advantages of low labor and material resource consumption and small damage to the object to be iced. The spraying of the anti-icing liquid is an effective method for preventing railway turnout, track and power supply rail from icing.
Disclosure of Invention
In order to at least solve one problem in the prior art, the invention provides an anti-icing fluid and a preparation method and application thereof.
In a first aspect, the present invention provides an anti-icing composition comprising:
the mass ratio of the polyalkylene glycol to the antifreeze is 1: 200-800, wherein the polymerization component of the polyalkylene glycol comprises ethylene oxide and propylene oxide, and the mass ratio of the ethylene oxide to the propylene oxide is 3: 1-1: 3.
Preferably, the polyalkylene glycol is obtained by polymerizing ethylene oxide and propylene oxide in a ratio of 1-3: 1, and more preferably in a ratio of 1: 1.
The polyalkylene glycols according to the invention have an average molar mass of 2000-20000 g/mol.
Further, the antifreeze agent includes a water-soluble alcohol;
preferably, the antifreezing agent comprises one or more of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, diethylene glycol, dipropylene glycol and glycerol;
more preferably, the anti-freeze agent is 1, 2-propylene glycol, and/or 1, 3-propylene glycol.
The invention further provides an anti-icing fluid comprising the anti-icing composition, and also comprises a thickening agent, a surfactant and a corrosion inhibitor.
Further, the anti-icing fluid comprises the following components in parts by weight: 20-80 parts of an antifreezing agent, 0.01-5.0 parts of polyalkylene glycol, 0.1-3.0 parts of a thickening agent, 0.01-1.0 part of a surfactant and 0.01-5.0 parts of a corrosion inhibitor.
According to the invention, the polyalkylene glycol with a specific proportion is added into the components of the antifreezing solution, so that a layer of continuous liquid film can be formed on the surface of the track when the antifreezing solution is used, the liquid film effectively isolates the surface of the track from an ice layer, and the adhesion of the ice layer is reduced.
Further, the thickening agent is one or more of xanthan gum, guar gum and sodium carboxymethyl cellulose.
Further, the surfactant is one or more of alkyl sulfonate, alkyl benzene sulfonate, fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene ether, and preferably fatty alcohol-polyoxyethylene ether.
Further, the corrosion inhibitor is one or more of an inorganic salt corrosion inhibitor, an organic acid corrosion inhibitor and an azole corrosion inhibitor, and preferably is one or more of sodium nitrite, sodium nitrate, sodium molybdate, benzotriazole, methylbenzotriazole, dipotassium hydrogen phosphate, sodium benzoate, p-tert-butylbenzoic acid, terephthalic acid, isooctanoic acid and sebacic acid.
Further, the pH value of the anti-icing fluid is 7.0-9.0, the pH value of the anti-icing fluid is preferably adjusted through a pH adjusting agent, the pH adjusting agent is preferably one or more of NaOH, KOH and triethanolamine, and the mass volume percentage content of the pH adjusting agent is preferably 0.01-1.0%.
As a preferred embodiment, the present invention provides an anti-icing fluid comprising:
the pH value of the anti-icing composition is 7.0-9.0.
In this preferred embodiment, 50-HB-5100 is the product designation, i.e., polyalkylene glycol 50-HB-5100, obtained by polymerizing 50% ethylene oxide and 50% propylene oxide. The anti-icing fluid prepared by the preferred embodiment can form a continuous liquid film on the surface of the track more stably and continuously when in use, and has better effect of isolating the surface of the track from an ice layer.
In a second aspect, the present invention provides a method for preparing the anti-icing fluid, comprising:
(1) dissolving and mixing a surfactant, a corrosion inhibitor and a pH regulator;
(2) mixing a thickening agent and an antifreezing agent;
(3) and (3) mixing the mixed liquid obtained in the steps (1) and (2).
Specifically, the preparation method comprises the following steps:
1) adding a surfactant, polyalkylene glycol, a corrosion inhibitor and a pH regulator into deionized water, and stirring for 0.5-5 hours at 10-60 ℃;
2) adding the thickening agent into the antifreezing agent, and stirring for 0.5-2 hours;
3) and (3) adding the mixed solution obtained in the step (1) into the mixed solution obtained in the step (2), and stirring for 0.5-5 hours to obtain the water-based paint.
The invention further provides application of the anti-icing composition and the anti-icing fluid in anti-icing of railway tracks, railway switches and conductor rails.
The application is specifically that the anti-icing fluid is sprayed on the surface of the track before the weather easy to freeze, such as snow, freezing rain and the like, and the thickness of the sprayed film is 0.1mm-0.5 mm.
The starting materials or reagents described in the present invention are commercially available.
The invention has the following beneficial effects:
(1) according to the invention, the specific polyalkylene glycol is added into the anti-icing fluid, so that the anti-icing fluid forms a continuous liquid film on the surface of the rail, and the liquid film effectively isolates the surface of the rail from an ice layer, so that the ice layer is easy to naturally fall off and clear, and the anti-icing performance of the anti-icing fluid is enhanced;
(2) the corrosion inhibitor is adopted and adjusted to the pH value of 7.0-9.0, so that the corrosion inhibition capability of the track anti-icing fluid is improved, and the track material is not corroded;
(3) the rail anti-icing fluid has good wetting and spreading performance by selecting the specific surfactant, and can be quickly spread on the surface of the rail after being sprayed;
(4) according to the invention, the specific thickening agent is selected to ensure that the track anti-icing fluid has good adhesion performance, and can be quickly adhered to the surface of the track after being sprayed, so that the loss is avoided;
(5) the raw materials selected by the invention have low toxicity, excellent biodegradability and small influence on the environment.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and scope of this invention.
The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.
The materials, reagents and the like used in the following examples are commercially available, unless otherwise specified, for example, from Clariant, 75-H-90000 and 50-HB-5100 from DOW, Polyglykol P41/3000, Polyglykol P41/12000.
Example 1
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.1.
P41/12000 is a low molecular weight polyether, polymerized from propylene oxide, butylene oxide and ethylene oxide, and belongs to one of the polyalkylene glycols.
The preparation method of the anti-icing fluid for the track comprises the following steps:
(1) adding a surfactant, polyalkylene glycol, a corrosion inhibitor and a pH regulator into deionized water, and stirring for 0.5-5 hours at 10-60 ℃;
(2) adding the thickening agent into the antifreezing agent, and stirring for 0.5-2 hours;
(3) and (3) adding the mixed solution obtained in the step (1) into the mixed solution obtained in the step (2), and stirring for 0.5-5 hours to obtain the water-based paint.
Example 2
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.0.
75-H-90000 is a polyalkylene glycol polymer starting with a glycol containing 75% by weight of ethylene oxide groups and 25% by weight of propylene oxide groups.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Example 3
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.3.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Example 4
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.2.
50-HB-5100 is a polyalkylene glycol polymer obtained by polymerizing 50% of ethylene oxide and 50% of propylene oxide.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Example 5
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.0.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Comparative example 1
The comparative example provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.2.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Comparative example 2
The comparative example provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.0.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Comparative example 3
The comparative example provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.3.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Comparative example 4
The embodiment provides a track anti-icing fluid which comprises the following components in percentage by mass:
the pH was 8.2.
The preparation method of the anti-icing liquid for the track is the same as that of the example 1.
Test example 1
In the test example, the performance comparison test is performed on the track anti-icing liquid in the examples 1 to 5 and the comparative examples 1 to 4 of the invention, and the specific method is as follows:
the self-made anti-icing test box is adopted in the test, the anti-icing test box comprises a low-temperature test box, a water cooler, a water spraying device and corresponding auxiliary instruments, the water spraying device comprises a water pump, a filter, a water pipe, a spray head and the like, the spray head is installed at the top of the low-temperature test box, and the water spraying device is used for uniformly spraying pre-cooling water provided by the water cooler onto the surface of a test piece and atomizing the pre-cooling water by compressed air.
Spraying the anti-icing liquid on the surface of the rail test piece by using a spray gun, placing the rail sample piece sprayed with the anti-icing liquid below a spray head, adjusting the temperature of a test box to be-5 ℃, keeping the temperature of precooling water at 0-3 ℃, continuously spraying the precooling water for 2 hours after the temperature is stable, continuously freezing for 1 hour after the water spraying is finished, observing the icing condition on the surface of the test piece in the test process, recording the time for starting the icing on the surface of the rail test piece, and inspecting the separation performance of an ice layer on the surface of the rail after the test is finished.
The test results are shown in table 1, and the results show that the track anti-icing fluid can effectively inhibit the surface of the track from icing in the environment simulating freezing rain, and the formed ice layer is easy to remove.
TABLE 1 EXAMPLES 1-5 track deicing fluid Performance
TABLE 2 comparative examples 1-4 performance of anti-icing fluids for rails
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. An anti-icing composition comprising: a polyalkylene glycol and an antifreezing agent, wherein the mass ratio of the polyalkylene glycol to the antifreezing agent is 1: 200-800, wherein the polymerization component of the polyalkylene glycol comprises ethylene oxide and propylene oxide, and the mass ratio of the ethylene oxide to the propylene oxide is 3: 1-1: 3.
2. The anti-icing composition according to claim 1, wherein said polyalkylene glycol is obtained by polymerizing ethylene oxide and propylene oxide in a ratio of 1 to 3: 1.
3. The anti-icing composition according to claim 1 or 2, characterized in that the anti-freeze comprises a water-soluble alcohol;
preferably, the antifreezing agent comprises one or more of ethylene glycol, 1, 2-propylene glycol, 1, 3-propylene glycol, diethylene glycol, dipropylene glycol and glycerol;
more preferably, the anti-freeze agent is 1, 2-propylene glycol, and/or 1, 3-propylene glycol.
4. An anti-icing fluid comprising the anti-icing composition of any one of claims 1 to 3 and further comprising a thickener, a surfactant and a corrosion inhibitor.
5. The anti-icing fluid according to claim 4, comprising in parts by weight: 20-80 parts of an antifreezing agent, 0.01-5.0 parts of polyalkylene glycol, 0.1-3.0 parts of a thickening agent, 0.01-1.0 part of a surfactant and 0.01-5.0 parts of a corrosion inhibitor.
6. The anti-icing fluid of claim 4 or 5 wherein said thickener is one or more of xanthan gum, guar gum and sodium carboxymethyl cellulose,
and/or the surfactant is one or more of alkyl sulfonate, alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether and alkylphenol polyoxyethylene ether, preferably fatty alcohol polyoxyethylene ether,
and/or the corrosion inhibitor is one or more of an inorganic salt corrosion inhibitor, an organic acid corrosion inhibitor and an azole corrosion inhibitor, and preferably one or more of sodium nitrite, sodium nitrate, sodium molybdate, benzotriazole, methylbenzotriazole, dipotassium hydrogen phosphate, sodium benzoate, p-tert-butylbenzoic acid, terephthalic acid, isooctanoic acid and sebacic acid.
7. The anti-icing fluid according to any one of claims 4 to 6, wherein the pH of the anti-icing fluid is 7.0 to 9.0, the pH value of the anti-icing fluid is preferably adjusted by a pH adjusting agent, the pH adjusting agent is preferably one or more of NaOH, KOH and triethanolamine, and the mass volume percentage of the pH adjusting agent is preferably 0.01 to 1.0%.
8. The anti-icing fluid according to claim 4, comprising, by mass:
the pH value of the anti-icing liquid is 7.0-9.0.
9. The method of preparing the anti-icing fluid of any one of claims 4 to 8, comprising:
(1) dissolving and mixing a surfactant, a corrosion inhibitor and a pH regulator;
(2) mixing a thickening agent and an antifreezing agent;
(3) and (3) mixing the mixed liquid obtained in the steps (1) and (2).
10. Use of an anti-icing composition according to any one of claims 1 to 3 or an anti-icing fluid according to any one of claims 4 to 8 for anti-icing railway tracks, railway switches or conductor rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543205.XA CN113801633A (en) | 2020-06-15 | 2020-06-15 | Anti-icing fluid and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543205.XA CN113801633A (en) | 2020-06-15 | 2020-06-15 | Anti-icing fluid and preparation method and application thereof |
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| CN113801633A true CN113801633A (en) | 2021-12-17 |
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| CN202010543205.XA Pending CN113801633A (en) | 2020-06-15 | 2020-06-15 | Anti-icing fluid and preparation method and application thereof |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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